mirror of https://gitee.com/openkylin/linux.git
24780 Commits
Author | SHA1 | Message | Date |
---|---|---|---|
Linus Torvalds | cee407c5cc |
* Doc fixes
* selftests fixes * Add runstate information to the new Xen support * Allow compiling out the Xen interface * 32-bit PAE without EPT bugfix * NULL pointer dereference bugfix -----BEGIN PGP SIGNATURE----- iQFIBAABCAAyFiEE8TM4V0tmI4mGbHaCv/vSX3jHroMFAmA+lGcUHHBib256aW5p QHJlZGhhdC5jb20ACgkQv/vSX3jHroMaMQf/Q8bQr5vVAeNk+1MyRmzNqFEbLqbe h50f4Wd2N+svZ6XinQH1vvuQm1WYj/g616Q3nCeYwCJyY34g5tf60XcuAMnVRIzw qc2IUvSAJ3faVElMrSA5thN3bkPzJpRrdIpQGBgOd+rT+eQkPSsJlTy34JJmvbmh xFGjoVj49tYEkFfpxEbtytW6QiYtPz/ai8SARRXbEUWO/pVzdkgK5XWshRhE9vpB GLCEXUngdPokJMblRMuK4YOSFQXXHobAJAgPwSzguDV41qezXaKOGYOLe7+V+0kH z607RnQc1wGgsLanT13okYMQr09/XCjpvFkZ9CK2bIJPsyWP+ihA/37hVQ== =1GNo -----END PGP SIGNATURE----- Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm Pull KVM fixes from Paolo Bonzini: - Doc fixes - selftests fixes - Add runstate information to the new Xen support - Allow compiling out the Xen interface - 32-bit PAE without EPT bugfix - NULL pointer dereference bugfix * tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: KVM: SVM: Clear the CR4 register on reset KVM: x86/xen: Add support for vCPU runstate information KVM: x86/xen: Fix return code when clearing vcpu_info and vcpu_time_info selftests: kvm: Mmap the entire vcpu mmap area KVM: Documentation: Fix index for KVM_CAP_PPC_DAWR1 KVM: x86: allow compiling out the Xen hypercall interface KVM: xen: flush deferred static key before checking it KVM: x86/mmu: Set SPTE_AD_WRPROT_ONLY_MASK if and only if PML is enabled KVM: x86: hyper-v: Fix Hyper-V context null-ptr-deref KVM: x86: remove misplaced comment on active_mmu_pages KVM: Documentation: rectify rst markup in kvm_run->flags Documentation: kvm: fix messy conversion from .txt to .rst |
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David Woodhouse | 30b5c851af |
KVM: x86/xen: Add support for vCPU runstate information
This is how Xen guests do steal time accounting. The hypervisor records the amount of time spent in each of running/runnable/blocked/offline states. In the Xen accounting, a vCPU is still in state RUNSTATE_running while in Xen for a hypercall or I/O trap, etc. Only if Xen explicitly schedules does the state become RUNSTATE_blocked. In KVM this means that even when the vCPU exits the kvm_run loop, the state remains RUNSTATE_running. The VMM can explicitly set the vCPU to RUNSTATE_blocked by using the KVM_XEN_VCPU_ATTR_TYPE_RUNSTATE_CURRENT attribute, and can also use KVM_XEN_VCPU_ATTR_TYPE_RUNSTATE_ADJUST to retrospectively add a given amount of time to the blocked state and subtract it from the running state. The state_entry_time corresponds to get_kvmclock_ns() at the time the vCPU entered the current state, and the total times of all four states should always add up to state_entry_time. Co-developed-by: Joao Martins <joao.m.martins@oracle.com> Signed-off-by: Joao Martins <joao.m.martins@oracle.com> Signed-off-by: David Woodhouse <dwmw@amazon.co.uk> Message-Id: <20210301125309.874953-2-dwmw2@infradead.org> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> |
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Aaron Lewis | 6528fc0a11 |
selftests: kvm: Mmap the entire vcpu mmap area
The vcpu mmap area may consist of more than just the kvm_run struct. Allocate enough space for the entire vcpu mmap area. Without this, on x86, the PIO page, for example, will be missing. This is problematic when dealing with an unhandled exception from the guest as the exception vector will be incorrectly reported as 0x0. Message-Id: <20210210165035.3712489-1-aaronlewis@google.com> Reviewed-by: Andrew Jones <drjones@redhat.com> Co-developed-by: Steve Rutherford <srutherford@google.com> Signed-off-by: Aaron Lewis <aaronlewis@google.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> |
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Linus Torvalds | 8b1e2c50bc |
Tracing: Fixes for 5.12
Two fixes: - Fix an unsafe printf string usage in a kmem trace event - Fix spelling in output from the latency-collector tool -----BEGIN PGP SIGNATURE----- iIoEABYIADIWIQRRSw7ePDh/lE+zeZMp5XQQmuv6qgUCYDhhwBQccm9zdGVkdEBn b29kbWlzLm9yZwAKCRAp5XQQmuv6qtclAQCztNe2l9UrmkADtaJNHOcmujRvxi+9 j0ppoSe7uKI4zAD+JVG40IyxvprfxengjmwIdvihL+uuWL50ULmvozRdzQM= =8nVm -----END PGP SIGNATURE----- Merge tag 'trace-v5.12-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace Pull tracing fixes from Steven Rostedt: "Two fixes: - Fix an unsafe printf string usage in a kmem trace event - Fix spelling in output from the latency-collector tool" * tag 'trace-v5.12-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace: tracing/tools: fix a couple of spelling mistakes mm, tracing: Fix kmem_cache_free trace event to not print stale pointers |
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Linus Torvalds | d94d14008e |
x86:
- take into account HVA before retrying on MMU notifier race - fixes for nested AMD guests without NPT - allow INVPCID in guest without PCID - disable PML in hardware when not in use - MMU code cleanups -----BEGIN PGP SIGNATURE----- iQFIBAABCAAyFiEE8TM4V0tmI4mGbHaCv/vSX3jHroMFAmA3eMQUHHBib256aW5p QHJlZGhhdC5jb20ACgkQv/vSX3jHroP6TQf5ARpUyq3oo+13albwg+zNca6hzR8i Vl7dpoR3bSJCN3sTYFnlL9eXw5TxgeUL2nqKqma6ddZDNDEBLT2Bq8rcFkbi4pUf n7av76EEq74HW/jlUhKVug7Q5Dm5DiKC6BOH3RVuKHbr6iZseyF3jXZSX0Ppf0yF gvoy6cGyMW60NVLN5tuGeOjVQ1fxziE0SqB90fXuiWgZ5rzIBfbqJV7EOOZsGO67 /LHSaEpvKutsc2a+Hx76yQNJjAbb2/O+4Bo5/RqfdqS5tRLGBzYggdJjLvAPvd6P pTNtDCnErvBZQfMedEQyHYuBL2Ca59fOp6i/ekOM2I+m7816+kSkdTMt2g== =iMHY -----END PGP SIGNATURE----- Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm Pull more KVM updates from Paolo Bonzini: "x86: - take into account HVA before retrying on MMU notifier race - fixes for nested AMD guests without NPT - allow INVPCID in guest without PCID - disable PML in hardware when not in use - MMU code cleanups: * tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (28 commits) KVM: SVM: Fix nested VM-Exit on #GP interception handling KVM: vmx/pmu: Fix dummy check if lbr_desc->event is created KVM: x86/mmu: Consider the hva in mmu_notifier retry KVM: x86/mmu: Skip mmu_notifier check when handling MMIO page fault KVM: Documentation: rectify rst markup in KVM_GET_SUPPORTED_HV_CPUID KVM: nSVM: prepare guest save area while is_guest_mode is true KVM: x86/mmu: Remove a variety of unnecessary exports KVM: x86: Fold "write-protect large" use case into generic write-protect KVM: x86/mmu: Don't set dirty bits when disabling dirty logging w/ PML KVM: VMX: Dynamically enable/disable PML based on memslot dirty logging KVM: x86: Further clarify the logic and comments for toggling log dirty KVM: x86: Move MMU's PML logic to common code KVM: x86/mmu: Make dirty log size hook (PML) a value, not a function KVM: x86/mmu: Expand on the comment in kvm_vcpu_ad_need_write_protect() KVM: nVMX: Disable PML in hardware when running L2 KVM: x86/mmu: Consult max mapping level when zapping collapsible SPTEs KVM: x86/mmu: Pass the memslot to the rmap callbacks KVM: x86/mmu: Split out max mapping level calculation to helper KVM: x86/mmu: Expand collapsible SPTE zap for TDP MMU to ZONE_DEVICE and HugeTLB pages KVM: nVMX: no need to undo inject_page_fault change on nested vmexit ... |
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Linus Torvalds | 5ad3dbab56 |
Networking fixes for 5.12-rc1. Rather small batch this time.
Current release - regressions: - bcm63xx_enet: fix sporadic kernel panic due to queue length mis-accounting Current release - new code bugs: - bcm4908_enet: fix RX path possible mem leak - bcm4908_enet: fix NAPI poll returned value - stmmac: fix missing spin_lock_init in visconti_eth_dwmac_probe() - sched: cls_flower: validate ct_state for invalid and reply flags Previous releases - regressions: - net: introduce CAN specific pointer in the struct net_device to prevent mis-interpreting memory - phy: micrel: set soft_reset callback to genphy_soft_reset for KSZ8081 - psample: fix netlink skb length with tunnel info Previous releases - always broken: - icmp: pass zeroed opts from icmp{,v6}_ndo_send before sending - wireguard: device: do not generate ICMP for non-IP packets - mptcp: provide subflow aware release function to avoid a mem leak - hsr: add support for EntryForgetTime - r8169: fix jumbo packet handling on RTL8168e - octeontx2-af: fix an off by one in rvu_dbg_qsize_write() - i40e: fix flow for IPv6 next header (extension header) - phy: icplus: call phy_restore_page() when phy_select_page() fails - dpaa_eth: fix the access method for the dpaa_napi_portal Signed-off-by: Jakub Kicinski <kuba@kernel.org> -----BEGIN PGP SIGNATURE----- iQIzBAABCAAdFiEE6jPA+I1ugmIBA4hXMUZtbf5SIrsFAmA36vIACgkQMUZtbf5S IrsG+xAAkAeZgVd8rCrE68dS9LHWGA9DMIPmguE2rh9gqax0HZDfdukvD251OFT7 60L6NKtOs2kT7r8vhpCHgu54cE7Tk1Fx8Y7Z1Du7Kq7rn9C1qFMx09H2iIP32rFF DjJcWq8E6tgY0FCaT5GbNKit+hE27IFKRwdK40BqWfdQ3D3rqqRdHja6/FPXIlPl 5bkcK3oEOau+yTRjMJaTVhgAmkJ/c5VgHux8mih2XeTbA7mf3+WWyh3Zr3p+7dUb KZ9Ft833ONtjaRaiU6LZX/BjWLwC6WT/NsuP+VgAEl5yhHQ2J5N37ICIcfQPFEs0 g9pDyWfGKy/Cw9577XE5TRuEPPlZJ4jEAL1TR5loSxPkkZwt5pthJDb9moBTwdzi IJNrza6WNx+OZ7KbU5jeZV34ax35dsFDjPQomcLQle3w0h3ESIpxTFWfeiksci8i PnhE+kLmlMmppQZVlydhgvw107bFVmBk2alwsmRzCROg1gOPhVd7VgnYhk6jsif8 v8HtBRrycb4DttSD+ZUaznO9uLg0yJjs+m45leKglvDqQ4me/trAamQnkrYfb9zc aVc+hRNwBbHwkOX2YRNDIhvAZJ3ZLDYP5H4C4A4Yv5E588gWdOxsgWqvZM98uk/P zlzpz28V3cp2rQ4dSnR2IwhfEwaekNkACtdr3VZ7jn1yZZvTl1g= =DUP/ -----END PGP SIGNATURE----- Merge tag 'net-5.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net Pull networking fixes from Jakub Kicinski: "Rather small batch this time. Current release - regressions: - bcm63xx_enet: fix sporadic kernel panic due to queue length mis-accounting Current release - new code bugs: - bcm4908_enet: fix RX path possible mem leak - bcm4908_enet: fix NAPI poll returned value - stmmac: fix missing spin_lock_init in visconti_eth_dwmac_probe() - sched: cls_flower: validate ct_state for invalid and reply flags Previous releases - regressions: - net: introduce CAN specific pointer in the struct net_device to prevent mis-interpreting memory - phy: micrel: set soft_reset callback to genphy_soft_reset for KSZ8081 - psample: fix netlink skb length with tunnel info Previous releases - always broken: - icmp: pass zeroed opts from icmp{,v6}_ndo_send before sending - wireguard: device: do not generate ICMP for non-IP packets - mptcp: provide subflow aware release function to avoid a mem leak - hsr: add support for EntryForgetTime - r8169: fix jumbo packet handling on RTL8168e - octeontx2-af: fix an off by one in rvu_dbg_qsize_write() - i40e: fix flow for IPv6 next header (extension header) - phy: icplus: call phy_restore_page() when phy_select_page() fails - dpaa_eth: fix the access method for the dpaa_napi_portal" * tag 'net-5.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (55 commits) r8169: fix jumbo packet handling on RTL8168e net: phy: micrel: set soft_reset callback to genphy_soft_reset for KSZ8081 net: psample: Fix netlink skb length with tunnel info net: broadcom: bcm4908_enet: fix NAPI poll returned value net: broadcom: bcm4908_enet: fix RX path possible mem leak net: hsr: add support for EntryForgetTime net: dsa: sja1105: Remove unneeded cast in sja1105_crc32() ibmvnic: fix a race between open and reset net: stmmac: Fix missing spin_lock_init in visconti_eth_dwmac_probe() net: introduce CAN specific pointer in the struct net_device net: usb: qmi_wwan: support ZTE P685M modem wireguard: kconfig: use arm chacha even with no neon wireguard: queueing: get rid of per-peer ring buffers wireguard: device: do not generate ICMP for non-IP packets wireguard: peer: put frequently used members above cache lines wireguard: selftests: test multiple parallel streams wireguard: socket: remove bogus __be32 annotation wireguard: avoid double unlikely() notation when using IS_ERR() net: qrtr: Fix memory leak in qrtr_tun_open vxlan: move debug check after netdev unregister ... |
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Colin Ian King | c1d96fa61e |
tracing/tools: fix a couple of spelling mistakes
There is a spelling mistake in the -g help option, I believe it should be "graph". There is also a spelling mistake in a warning message. Fix both mistakes. Link: https://lkml.kernel.org/r/20210225165248.22050-2-Viktor.Rosendahl@bmw.de Signed-off-by: Colin Ian King <colin.king@canonical.com> Signed-off-by: Viktor Rosendahl <Viktor.Rosendahl@bmw.de> Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org> |
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Linus Torvalds | 29c395c77a |
Rework of the X86 irq stack handling:
The irq stack switching was moved out of the ASM entry code in course of the entry code consolidation. It ended up being suboptimal in various ways. - Make the stack switching inline so the stackpointer manipulation is not longer at an easy to find place. - Get rid of the unnecessary indirect call. - Avoid the double stack switching in interrupt return and reuse the interrupt stack for softirq handling. - A objtool fix for CONFIG_FRAME_POINTER=y builds where it got confused about the stack pointer manipulation. -----BEGIN PGP SIGNATURE----- iQJHBAABCgAxFiEEQp8+kY+LLUocC4bMphj1TA10mKEFAmA21OcTHHRnbHhAbGlu dXRyb25peC5kZQAKCRCmGPVMDXSYoaX0D/9S0ud6oqbsIvI8LwhvYub63a2cjKP9 liHAJ7xwMYYVwzf0skwsPb/QE6+onCzdq0upJkgG/gEYm2KbiaMWZ4GgHdj0O7ER qXKJONDd36AGxSEdaVzLY5kPuD/mkomGk5QdaZaTmjruthkNzg4y/N2wXUBIMZR0 FdpSpp5fGspSZCn/DXDx6FjClwpLI53VclvDs6DcZ2DIBA0K+F/cSLb1UQoDLE1U hxGeuNa+GhKeeZ5C+q5giho1+ukbwtjMW9WnKHAVNiStjm0uzdqq7ERGi/REvkcB LY62u5uOSW1zIBMmzUjDDQEqvypB0iFxFCpN8g9sieZjA0zkaUioRTQyR+YIQ8Cp l8LLir0dVQivR1bHghHDKQJUpdw/4zvDj4mMH10XHqbcOtIxJDOJHC5D00ridsAz OK0RlbAJBl9FTdLNfdVReBCoehYAO8oefeyMAG12nZeSh5XVUWl238rvzmzIYNhG cEtkSx2wIUNEA+uSuI+xvfmwpxL7voTGvqmiRDCAFxyO7Bl/GBu9OEBFA1eOvHB+ +wTmPDMswRetQNh4QCRXzk1JzP1Wk5CobUL9iinCWFoTJmnsPPSOWlosN6ewaNXt kYFpRLy5xt9EP7dlfgBSjiRlthDhTdMrFjD5bsy1vdm1w7HKUo82lHa4O8Hq3PHS tinKICUqRsbjig== =Sqr1 -----END PGP SIGNATURE----- Merge tag 'x86-entry-2021-02-24' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 irq entry updates from Thomas Gleixner: "The irq stack switching was moved out of the ASM entry code in course of the entry code consolidation. It ended up being suboptimal in various ways. This reworks the X86 irq stack handling: - Make the stack switching inline so the stackpointer manipulation is not longer at an easy to find place. - Get rid of the unnecessary indirect call. - Avoid the double stack switching in interrupt return and reuse the interrupt stack for softirq handling. - A objtool fix for CONFIG_FRAME_POINTER=y builds where it got confused about the stack pointer manipulation" * tag 'x86-entry-2021-02-24' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: objtool: Fix stack-swizzle for FRAME_POINTER=y um: Enforce the usage of asm-generic/softirq_stack.h x86/softirq/64: Inline do_softirq_own_stack() softirq: Move do_softirq_own_stack() to generic asm header softirq: Move __ARCH_HAS_DO_SOFTIRQ to Kconfig x86: Select CONFIG_HAVE_IRQ_EXIT_ON_IRQ_STACK x86/softirq: Remove indirection in do_softirq_own_stack() x86/entry: Use run_sysvec_on_irqstack_cond() for XEN upcall x86/entry: Convert device interrupts to inline stack switching x86/entry: Convert system vectors to irq stack macro x86/irq: Provide macro for inlining irq stack switching x86/apic: Split out spurious handling code x86/irq/64: Adjust the per CPU irq stack pointer by 8 x86/irq: Sanitize irq stack tracking x86/entry: Fix instrumentation annotation |
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Linus Torvalds | 4c48faba5b |
Merge branch 'akpm' (patches from Andrew)
Merge misc updates from Andrew Morton: "A few small subsystems and some of MM. 172 patches. Subsystems affected by this patch series: hexagon, scripts, ntfs, ocfs2, vfs, and mm (slab-generic, slab, slub, debug, pagecache, swap, memcg, pagemap, mprotect, mremap, page-reporting, vmalloc, kasan, pagealloc, memory-failure, hugetlb, vmscan, z3fold, compaction, mempolicy, oom-kill, hugetlbfs, and migration)" * emailed patches from Andrew Morton <akpm@linux-foundation.org>: (172 commits) mm/migrate: remove unneeded semicolons hugetlbfs: remove unneeded return value of hugetlb_vmtruncate() hugetlbfs: fix some comment typos hugetlbfs: correct some obsolete comments about inode i_mutex hugetlbfs: make hugepage size conversion more readable hugetlbfs: remove meaningless variable avoid_reserve hugetlbfs: correct obsolete function name in hugetlbfs_read_iter() hugetlbfs: use helper macro default_hstate in init_hugetlbfs_fs hugetlbfs: remove useless BUG_ON(!inode) in hugetlbfs_setattr() hugetlbfs: remove special hugetlbfs_set_page_dirty() mm/hugetlb: change hugetlb_reserve_pages() to type bool mm, oom: fix a comment in dump_task() mm/mempolicy: use helper range_in_vma() in queue_pages_test_walk() numa balancing: migrate on fault among multiple bound nodes mm, compaction: make fast_isolate_freepages() stay within zone mm/compaction: fix misbehaviors of fast_find_migrateblock() mm/compaction: correct deferral logic for proactive compaction mm/compaction: remove duplicated VM_BUG_ON_PAGE !PageLocked mm/compaction: remove rcu_read_lock during page compaction z3fold: simplify the zhdr initialization code in init_z3fold_page() ... |
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Andrey Konovalov | f00748bfa0 |
kasan: prefix global functions with kasan_
Patch series "kasan: HW_TAGS tests support and fixes", v4. This patchset adds support for running KASAN-KUnit tests with the hardware tag-based mode and also contains a few fixes. This patch (of 15): There's a number of internal KASAN functions that are used across multiple source code files and therefore aren't marked as static inline. To avoid littering the kernel function names list with generic function names, prefix all such KASAN functions with kasan_. As a part of this change: - Rename internal (un)poison_range() to kasan_(un)poison() (no _range) to avoid name collision with a public kasan_unpoison_range(). - Rename check_memory_region() to kasan_check_range(), as it's a more fitting name. Link: https://lkml.kernel.org/r/cover.1610733117.git.andreyknvl@google.com Link: https://linux-review.googlesource.com/id/I719cc93483d4ba288a634dba80ee6b7f2809cd26 Link: https://lkml.kernel.org/r/13777aedf8d3ebbf35891136e1f2287e2f34aaba.1610733117.git.andreyknvl@google.com Signed-off-by: Andrey Konovalov <andreyknvl@google.com> Suggested-by: Marco Elver <elver@google.com> Reviewed-by: Marco Elver <elver@google.com> Reviewed-by: Alexander Potapenko <glider@google.com> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Vincenzo Frascino <vincenzo.frascino@arm.com> Cc: Dmitry Vyukov <dvyukov@google.com> Cc: Will Deacon <will.deacon@arm.com> Cc: Andrey Ryabinin <aryabinin@virtuozzo.com> Cc: Peter Collingbourne <pcc@google.com> Cc: Evgenii Stepanov <eugenis@google.com> Cc: Branislav Rankov <Branislav.Rankov@arm.com> Cc: Kevin Brodsky <kevin.brodsky@arm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Linus Torvalds | a4dec04c7f |
dma-mapping updates for 5.12:
- add support to emulate processing delays in the DMA API benchmark selftest (Barry Song) - remove support for non-contiguous noncoherent allocations, which aren't used and will be replaced by a different API -----BEGIN PGP SIGNATURE----- iQI/BAABCgApFiEEgdbnc3r/njty3Iq9D55TZVIEUYMFAmA2A7gLHGhjaEBsc3Qu ZGUACgkQD55TZVIEUYMebw//bkSZ1v1FvGgMd+AQKKnNz+iNHH0MJAlEDhPCynFM QCPg6OtU9IU/5nmyQlO3rgZ1IW+qABCF36TqjPZar6STuTv3dzfvv9xydyOqdPNA ekFzc9FnjvWt4wzL+1pXiB/EfjKDudGAjlMyLhghl653HcLnLvE3LxgpfBMrUHbH DfSBTXt4fTK4ck8ZO6FW2LXOtLgmJvk+qglO1vs9GQv/zcRHXYkIyvqMYTlHwBlh Ltfl+kJzFHQ3taIo3utCeS5Qzctd6tbxy/Me4OHl2VydNAi8awQz4HX4yZyWYxl5 WpIGhHfD9ROKnGroaEhetUO4OczOXiqYdkt6tt5iAAUW2TFA+mgbvph3+Di/zxgl 4IxOQyhdWA38IA00YmNsoPafuuqC7WwASUfCufg+30MgHR3bpM7GyY5X84DIh3tm wlPJBMl2RqWnfxmmvjPYxV2wtN3TkA8KJN/xVcUE8aWL2mV50l1/nDdlvCbmjg60 pQt1cGP8A2hODYwLHTzadm67xc0cLrkC8nQbrnDo/FAKGmDD3aHhS95TAIr+ZoeK cgSFHNkJ1UcJ6nosCB3/MPlIJo1noAIeJnmuOIfhJn0uIof4CGQ5XQgWmJeHFLqO GlwtJAN3F3db4dxMQNn5br049wob7fgFWqMPfTGy51bZ5BClUKWGSpEonavpUMd1 oKM= =papz -----END PGP SIGNATURE----- Merge tag 'dma-mapping-5.12' of git://git.infradead.org/users/hch/dma-mapping Pull dma-mapping updates from Christoph Hellwig: - add support to emulate processing delays in the DMA API benchmark selftest (Barry Song) - remove support for non-contiguous noncoherent allocations, which aren't used and will be replaced by a different API * tag 'dma-mapping-5.12' of git://git.infradead.org/users/hch/dma-mapping: dma-mapping: remove the {alloc,free}_noncoherent methods dma-mapping: benchmark: pretend DMA is transmitting |
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Jason A. Donenfeld | d5a49aa6c3 |
wireguard: selftests: test multiple parallel streams
In order to test ndo_start_xmit being called in parallel, explicitly add
separate tests, which should all run on different cores. This should
help tease out bugs associated with queueing up packets from different
cores in parallel. Currently, it hasn't found those types of bugs, but
given future planned work, this is a useful regression to avoid.
Fixes:
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Linus Torvalds | 414eece95b |
clang-lto for v5.12-rc1 (part2)
- Generate __mcount_loc in objtool (Peter Zijlstra) - Support running objtool against vmlinux.o (Sami Tolvanen) - Clang LTO enablement for x86 (Sami Tolvanen) -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEpcP2jyKd1g9yPm4TiXL039xtwCYFAmA1fn8ACgkQiXL039xt wCbswQ//Zmnq912Ubyn5uPe9SOS/kumGDoqtxGzlZwo/pSB3qFArhD6G07sJ49XD nu/05ZcOda760wubnhcuK91n2fY5i/eGLXMSjfgtdVcco4Q67nPQydc+LGdhuDco FlhL8TAIwqYN1f2nJK1IggZpZFxz5r/r1Pq8q1S0oQRqDenxDBQwNtBba4B1OIxw /FE/1Hp3xwRnuJEP2jREBeY1yQ+Y1n859pZcDgSOWlTArcp8EVUi5hIWJ9DwIe73 mqnx6PcFWEYB0zLNZmZz2gpEac+ncGyme6ChayeuQfInbL5dhx97jFGt3S6/+NSY mF2zyaR/+JsGGuM8dVqH3izKCJXCEAGirrdMO1ndb9HdwS3KnYEiag2ciNWL0wm3 UEM4r0i2B14sU3pkyotKgsJdOSgorMKkQUPb2wW+OUfnkZNEWKLqylMgNXBD80l4 WG5vYQRwwFN9jRBik6Z5YFGnwGsNIoGg1F1GRNMjh6h51adYQeBN/1QJE1FJ5L4D iKzmZYqimKUINXWfI6TNyqiv9TctOt65pxnRyq+MHxfTDzHGyc3MUeCeCiR1a1yI S5QhcgfSnC/NjDA0+oYC6yRlcBtfhjtUqFTGoZ4q4q/LF1BVU1bPyIXZrROLc05s LNMMBcWbJetJxFtm/gYfiVFuNitYtxbBV1krVtsWznCA2nKGJ9w= =htKJ -----END PGP SIGNATURE----- Merge tag 'clang-lto-v5.12-rc1-part2' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux Pull more clang LTO updates from Kees Cook: "Clang LTO x86 enablement. Full disclosure: while this has _not_ been in linux-next (since it initially looked like the objtool dependencies weren't going to make v5.12), it has been under daily build and runtime testing by Sami for quite some time. These x86 portions have been discussed on lkml, with Peter, Josh, and others helping nail things down. The bulk of the changes are to get objtool working happily. The rest of the x86 enablement is very small. Summary: - Generate __mcount_loc in objtool (Peter Zijlstra) - Support running objtool against vmlinux.o (Sami Tolvanen) - Clang LTO enablement for x86 (Sami Tolvanen)" Link: https://lore.kernel.org/lkml/20201013003203.4168817-26-samitolvanen@google.com/ Link: https://lore.kernel.org/lkml/cover.1611263461.git.jpoimboe@redhat.com/ * tag 'clang-lto-v5.12-rc1-part2' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux: kbuild: lto: force rebuilds when switching CONFIG_LTO x86, build: allow LTO to be selected x86, cpu: disable LTO for cpu.c x86, vdso: disable LTO only for vDSO kbuild: lto: postpone objtool objtool: Split noinstr validation from --vmlinux x86, build: use objtool mcount tracing: add support for objtool mcount objtool: Don't autodetect vmlinux.o objtool: Fix __mcount_loc generation with Clang's assembler objtool: Add a pass for generating __mcount_loc |
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Linus Torvalds | 7d6beb71da |
idmapped-mounts-v5.12
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Merge tag 'idmapped-mounts-v5.12' of git://git.kernel.org/pub/scm/linux/kernel/git/brauner/linux
Pull idmapped mounts from Christian Brauner:
"This introduces idmapped mounts which has been in the making for some
time. Simply put, different mounts can expose the same file or
directory with different ownership. This initial implementation comes
with ports for fat, ext4 and with Christoph's port for xfs with more
filesystems being actively worked on by independent people and
maintainers.
Idmapping mounts handle a wide range of long standing use-cases. Here
are just a few:
- Idmapped mounts make it possible to easily share files between
multiple users or multiple machines especially in complex
scenarios. For example, idmapped mounts will be used in the
implementation of portable home directories in
systemd-homed.service(8) where they allow users to move their home
directory to an external storage device and use it on multiple
computers where they are assigned different uids and gids. This
effectively makes it possible to assign random uids and gids at
login time.
- It is possible to share files from the host with unprivileged
containers without having to change ownership permanently through
chown(2).
- It is possible to idmap a container's rootfs and without having to
mangle every file. For example, Chromebooks use it to share the
user's Download folder with their unprivileged containers in their
Linux subsystem.
- It is possible to share files between containers with
non-overlapping idmappings.
- Filesystem that lack a proper concept of ownership such as fat can
use idmapped mounts to implement discretionary access (DAC)
permission checking.
- They allow users to efficiently changing ownership on a per-mount
basis without having to (recursively) chown(2) all files. In
contrast to chown (2) changing ownership of large sets of files is
instantenous with idmapped mounts. This is especially useful when
ownership of a whole root filesystem of a virtual machine or
container is changed. With idmapped mounts a single syscall
mount_setattr syscall will be sufficient to change the ownership of
all files.
- Idmapped mounts always take the current ownership into account as
idmappings specify what a given uid or gid is supposed to be mapped
to. This contrasts with the chown(2) syscall which cannot by itself
take the current ownership of the files it changes into account. It
simply changes the ownership to the specified uid and gid. This is
especially problematic when recursively chown(2)ing a large set of
files which is commong with the aforementioned portable home
directory and container and vm scenario.
- Idmapped mounts allow to change ownership locally, restricting it
to specific mounts, and temporarily as the ownership changes only
apply as long as the mount exists.
Several userspace projects have either already put up patches and
pull-requests for this feature or will do so should you decide to pull
this:
- systemd: In a wide variety of scenarios but especially right away
in their implementation of portable home directories.
https://systemd.io/HOME_DIRECTORY/
- container runtimes: containerd, runC, LXD:To share data between
host and unprivileged containers, unprivileged and privileged
containers, etc. The pull request for idmapped mounts support in
containerd, the default Kubernetes runtime is already up for quite
a while now: https://github.com/containerd/containerd/pull/4734
- The virtio-fs developers and several users have expressed interest
in using this feature with virtual machines once virtio-fs is
ported.
- ChromeOS: Sharing host-directories with unprivileged containers.
I've tightly synced with all those projects and all of those listed
here have also expressed their need/desire for this feature on the
mailing list. For more info on how people use this there's a bunch of
talks about this too. Here's just two recent ones:
https://www.cncf.io/wp-content/uploads/2020/12/Rootless-Containers-in-Gitpod.pdf
https://fosdem.org/2021/schedule/event/containers_idmap/
This comes with an extensive xfstests suite covering both ext4 and
xfs:
https://git.kernel.org/brauner/xfstests-dev/h/idmapped_mounts
It covers truncation, creation, opening, xattrs, vfscaps, setid
execution, setgid inheritance and more both with idmapped and
non-idmapped mounts. It already helped to discover an unrelated xfs
setgid inheritance bug which has since been fixed in mainline. It will
be sent for inclusion with the xfstests project should you decide to
merge this.
In order to support per-mount idmappings vfsmounts are marked with
user namespaces. The idmapping of the user namespace will be used to
map the ids of vfs objects when they are accessed through that mount.
By default all vfsmounts are marked with the initial user namespace.
The initial user namespace is used to indicate that a mount is not
idmapped. All operations behave as before and this is verified in the
testsuite.
Based on prior discussions we want to attach the whole user namespace
and not just a dedicated idmapping struct. This allows us to reuse all
the helpers that already exist for dealing with idmappings instead of
introducing a whole new range of helpers. In addition, if we decide in
the future that we are confident enough to enable unprivileged users
to setup idmapped mounts the permission checking can take into account
whether the caller is privileged in the user namespace the mount is
currently marked with.
The user namespace the mount will be marked with can be specified by
passing a file descriptor refering to the user namespace as an
argument to the new mount_setattr() syscall together with the new
MOUNT_ATTR_IDMAP flag. The system call follows the openat2() pattern
of extensibility.
The following conditions must be met in order to create an idmapped
mount:
- The caller must currently have the CAP_SYS_ADMIN capability in the
user namespace the underlying filesystem has been mounted in.
- The underlying filesystem must support idmapped mounts.
- The mount must not already be idmapped. This also implies that the
idmapping of a mount cannot be altered once it has been idmapped.
- The mount must be a detached/anonymous mount, i.e. it must have
been created by calling open_tree() with the OPEN_TREE_CLONE flag
and it must not already have been visible in the filesystem.
The last two points guarantee easier semantics for userspace and the
kernel and make the implementation significantly simpler.
By default vfsmounts are marked with the initial user namespace and no
behavioral or performance changes are observed.
The manpage with a detailed description can be found here:
|
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Sami Tolvanen | 41425ebe20 |
objtool: Split noinstr validation from --vmlinux
This change adds a --noinstr flag to objtool to allow us to specify that we're processing vmlinux.o without also enabling noinstr validation. This is needed to avoid false positives with LTO when we run objtool on vmlinux.o without CONFIG_DEBUG_ENTRY. Signed-off-by: Sami Tolvanen <samitolvanen@google.com> |
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Sami Tolvanen | 0e731dbc18 |
objtool: Don't autodetect vmlinux.o
With LTO, we run objtool on vmlinux.o, but don't want noinstr validation. This change requires --vmlinux to be passed to objtool explicitly. Suggested-by: Peter Zijlstra <peterz@infradead.org> Signed-off-by: Sami Tolvanen <samitolvanen@google.com> Reviewed-by: Kees Cook <keescook@chromium.org> |
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Sami Tolvanen | 18a14575ae |
objtool: Fix __mcount_loc generation with Clang's assembler
When objtool generates relocations for the __mcount_loc section, it
tries to reference __fentry__ calls by their section symbol offset.
However, this fails with Clang's integrated assembler as it may not
generate section symbols for every section. This patch looks up a
function symbol instead if the section symbol is missing, similarly
to commit
|
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Peter Zijlstra | 99d0021569 |
objtool: Add a pass for generating __mcount_loc
Add the --mcount option for generating __mcount_loc sections needed for dynamic ftrace. Using this pass requires the kernel to be compiled with -mfentry and CC_USING_NOP_MCOUNT to be defined in Makefile. Link: https://lore.kernel.org/lkml/20200625200235.GQ4781@hirez.programming.kicks-ass.net/ Signed-off-by: Peter Zijlstra <peterz@infradead.org> [Sami: rebased, dropped config changes, fixed to actually use --mcount, and wrote a commit message.] Signed-off-by: Sami Tolvanen <samitolvanen@google.com> Reviewed-by: Kees Cook <keescook@chromium.org> |
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Linus Torvalds | 21a6ab2131 |
Modules updates for v5.12
Summary of modules changes for the 5.12 merge window: - Retire EXPORT_UNUSED_SYMBOL() and EXPORT_SYMBOL_GPL_FUTURE(). These export types were introduced between 2006 - 2008. All the of the unused symbols have been long removed and gpl future symbols were converted to gpl quite a long time ago, and I don't believe these export types have been used ever since. So, I think it should be safe to retire those export types now. (Christoph Hellwig) - Refactor and clean up some aged code cruft in the module loader (Christoph Hellwig) - Build {,module_}kallsyms_on_each_symbol only when livepatching is enabled, as it is the only caller (Christoph Hellwig) - Unexport find_module() and module_mutex and fix the last module callers to not rely on these anymore. Make module_mutex internal to the module loader. (Christoph Hellwig) - Harden ELF checks on module load and validate ELF structures before checking the module signature (Frank van der Linden) - Fix undefined symbol warning for clang (Fangrui Song) - Fix smatch warning (Dan Carpenter) Signed-off-by: Jessica Yu <jeyu@kernel.org> -----BEGIN PGP SIGNATURE----- iQJEBAABCAAuFiEEVrp26glSWYuDNrCUwEV+OM47wXIFAmA0/KMQHGpleXVAa2Vy bmVsLm9yZwAKCRDARX44zjvBcu0uD/4nmRp18EKAtdUZivsZHat0aEWGlkmrVueY 5huYw6iwM8b/wIAl3xwLki1Iv0/l0a83WXZhLG4ekl0/Nj8kgllA+jtBrZWpoLMH CZusN5dS9YwwyD2vu3ak83ARcehcDEPeA9thvc3uRFGis6Hi4bt1rkzGdrzsgqR4 tybfN4qaQx4ZAKFxA8bnS58l7QTFwUzTxJfM6WWzl1Q+mLZDr/WP+loJ/f1/oFFg ufN31KrqqFpdQY5UKq5P4H8FVq/eXE1Mwl8vo3HsnAj598fznyPUmA3D/j+N4GuR sTGBVZ9CSehUj7uZRs+Qgg6Bd+y3o44N29BrdZWA6K3ieTeQQpA+VgPUNrDBjGhP J/9Y4ms4PnuNEWWRaa73m9qsVqAsjh9+T2xp9PYn9uWLCM8BvQFtWcY7tw4/nB0/ INmyiP/tIRpwWkkBl47u1TPR09FzBBGDZjBiSn3lm3VX+zCYtHoma5jWyejG11cf ybDrTsci9ANyHNP2zFQsUOQJkph78PIal0i3k4ODqGJvaC0iEIH3Xjv+0dmE14rq kGRrG/HN6HhMZPjashudVUktyTZ63+PJpfFlQbcUzdvjQQIkzW0vrCHMWx9vD1xl Na7vZLl4Nb03WSJp6saY6j2YSRKL0poGETzGqrsUAHEhpEOPHduaiCVlAr/EmeMk p6SrWv8+UQ== =T29Q -----END PGP SIGNATURE----- Merge tag 'modules-for-v5.12' of git://git.kernel.org/pub/scm/linux/kernel/git/jeyu/linux Pull module updates from Jessica Yu: - Retire EXPORT_UNUSED_SYMBOL() and EXPORT_SYMBOL_GPL_FUTURE(). These export types were introduced between 2006 - 2008. All the of the unused symbols have been long removed and gpl future symbols were converted to gpl quite a long time ago, and I don't believe these export types have been used ever since. So, I think it should be safe to retire those export types now (Christoph Hellwig) - Refactor and clean up some aged code cruft in the module loader (Christoph Hellwig) - Build {,module_}kallsyms_on_each_symbol only when livepatching is enabled, as it is the only caller (Christoph Hellwig) - Unexport find_module() and module_mutex and fix the last module callers to not rely on these anymore. Make module_mutex internal to the module loader (Christoph Hellwig) - Harden ELF checks on module load and validate ELF structures before checking the module signature (Frank van der Linden) - Fix undefined symbol warning for clang (Fangrui Song) - Fix smatch warning (Dan Carpenter) * tag 'modules-for-v5.12' of git://git.kernel.org/pub/scm/linux/kernel/git/jeyu/linux: module: potential uninitialized return in module_kallsyms_on_each_symbol() module: remove EXPORT_UNUSED_SYMBOL* module: remove EXPORT_SYMBOL_GPL_FUTURE module: move struct symsearch to module.c module: pass struct find_symbol_args to find_symbol module: merge each_symbol_section into find_symbol module: remove each_symbol_in_section module: mark module_mutex static kallsyms: only build {,module_}kallsyms_on_each_symbol when required kallsyms: refactor {,module_}kallsyms_on_each_symbol module: use RCU to synchronize find_module module: unexport find_module and module_mutex drm: remove drm_fb_helper_modinit powerpc/powernv: remove get_cxl_module module: harden ELF info handling module: Ignore _GLOBAL_OFFSET_TABLE_ when warning for undefined symbols |
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Linus Torvalds | a56ff24efb |
objtool updates:
- Make objtool work for big-endian cross compiles - Make stack tracking via stack pointer memory operations match push/pop semantics to prepare for architectures w/o PUSH/POP instructions. - Add support for analyzing alternatives - Improve retpoline detection and handling - Improve assembly code coverage on x86 - Provide support for inlined stack switching -----BEGIN PGP SIGNATURE----- iQJHBAABCgAxFiEEQp8+kY+LLUocC4bMphj1TA10mKEFAmA1FUcTHHRnbHhAbGlu dXRyb25peC5kZQAKCRCmGPVMDXSYoe+0D/9ytW3AfQUOGlVHVPTwCAd2LSCL2kQR zrUAyUEwEXDuZi2vOcmgndr9AToszdBnAlxSOStJYE1/ia/ptbYjj9eFOWkCwPw2 R0DSjTHh+Ui2yPjcbYvOcMphc7DTT1ssMvRWzw0I3fjfJaYBJjNx1qdseN2yhFrL BNhdh4B4StEfCbNBMhnzKTZNM1yXNN93ojot9suxnqPIAV6ruc5SUrd9Pmii2odX gRHQthGSPMR9nJYWrT2QzbDrM2DWkKIGUol0Xr1LTFYWNFsK3sTQkFiMevTP5Msw qO01lw4IKCMKMonaE0t/vxFBz5vhIyivxLQMI3LBixmf2dbE9UbZqW0ONPYoZJgf MrYyz4Tdv2u/MklTPM263cbTsdtmGEuW2iVRqaDDWP/Py1A187bUaVkw8p/9O/9V CBl8dMF3ag1FquxnsyHDowHKu8DaIZyeBHu69aNfAlcOrtn8ZtY4MwQbQkL9cNYe ywLEmCm8zdYNrXlVOuMX/0AAWnSpqCgDYUmKhOLW4W1r4ewNpAUCmvIL8cpLtko0 FDbMTdKU2pd5SQv5YX6Bvvra483DvP9rNAuQGHpxZ7ubSlj8cFOT9UmjuuOb4fxQ EFj8JrF9KEN5sxGUu4tjg0D0Ee3wDdSTGs0cUN5FBMXelQOM7U4n4Y7n/Pas/LMa B5TVW3JiDcMcPg== =0AHf -----END PGP SIGNATURE----- Merge tag 'objtool-core-2021-02-23' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull objtool updates from Thomas Gleixner: - Make objtool work for big-endian cross compiles - Make stack tracking via stack pointer memory operations match push/pop semantics to prepare for architectures w/o PUSH/POP instructions. - Add support for analyzing alternatives - Improve retpoline detection and handling - Improve assembly code coverage on x86 - Provide support for inlined stack switching * tag 'objtool-core-2021-02-23' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (33 commits) objtool: Support stack-swizzle objtool,x86: Additionally decode: mov %rsp, (%reg) x86/unwind/orc: Change REG_SP_INDIRECT x86/power: Support objtool validation in hibernate_asm_64.S x86/power: Move restore_registers() to top of the file x86/power: Annotate indirect branches as safe x86/acpi: Support objtool validation in wakeup_64.S x86/acpi: Annotate indirect branch as safe x86/ftrace: Support objtool vmlinux.o validation in ftrace_64.S x86/xen/pvh: Annotate indirect branch as safe x86/xen: Support objtool vmlinux.o validation in xen-head.S x86/xen: Support objtool validation in xen-asm.S objtool: Add xen_start_kernel() to noreturn list objtool: Combine UNWIND_HINT_RET_OFFSET and UNWIND_HINT_FUNC objtool: Add asm version of STACK_FRAME_NON_STANDARD objtool: Assume only ELF functions do sibling calls x86/ftrace: Add UNWIND_HINT_FUNC annotation for ftrace_stub objtool: Support retpoline jump detection for vmlinux.o objtool: Fix ".cold" section suffix check for newer versions of GCC objtool: Fix retpoline detection in asm code ... |
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Linus Torvalds | 4b5f9254e4 |
kconfig for kcmp syscall
drm userspaces uses this, systemd uses this, makes sense to pull it out from the checkpoint-restore bundle. Kees reviewed this from security pov and is happy with the final version. LWN coverage: https://lwn.net/Articles/845448/ -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEb4nG6jLu8Y5XI+PfTA9ye/CYqnEFAmAzaXIACgkQTA9ye/CY qnH5FQ//eL/7a/PDICuCRIN2p2aQwHoe9d12q+01RolAgce6F9mR9SFiKGSCR+t7 daw4G/BaGxSYzvz1IqWbXDMhN87jAXV/IGs9k4OkSIcbnDmMY78EKMZB1c1t7AZo zmeAuQvmTAcBogTwC6IE9N1JwhH3fmudq4p8zZ4zLojJNSPjrwCvF/xQI/Yaw52V CTfni8mrjYJ+pZ1qn9XP3IceAFEEI27ubZj2DJU+5xpRJAdIAobo0XbVOf8XQ0uc /BRLyXFS66EDsY1wWHT6y6UXDNZgbLic0olC1aielaBJh+Wq6bQHgephxpasU5y7 cZX7XTX2N1q8j8NmgzWLYRgERqtXv0CPHKdimTs8SaUcPDGhxcnwPR6hmdQEC+i6 IjntWMERjfuyD+s6qVuc7s8WS7+Ry9OxgdVskHASqGpBvsSliXN1o02Am6WUuGsB HZxTjCe967FyL4LGU0YjobMTUUSWfYQkOBKABlvYUySNZ0ZHnSygHIWiWjC6b89A KmXiHJoocNfDlKwX6bf3OWQ+dGGFu2wo5wYzldIiqYJVidp50xdOosdRE1R6WwuG IOLCdNKdqDgtig+90/fFZ06liXZvqUdDafWgUs/g6lLquFrcq5aAIiSdR6PcPKB0 MwfWcCglLtYrxgDHvNaqnW18yRQq2TGbe+A65aXzLPp45pKP8Hk= =uiSj -----END PGP SIGNATURE----- Merge tag 'topic/kcmp-kconfig-2021-02-22' of git://anongit.freedesktop.org/drm/drm Pull kcmp kconfig update from Daniel Vetter: "Make the kcmp syscall available independently of checkpoint/restore. drm userspaces uses this, systemd uses this, so makes sense to pull it out from the checkpoint-restore bundle. Kees reviewed this from security pov and is happy with the final version" Link: https://lwn.net/Articles/845448/ * tag 'topic/kcmp-kconfig-2021-02-22' of git://anongit.freedesktop.org/drm/drm: kcmp: Support selection of SYS_kcmp without CHECKPOINT_RESTORE |
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Linus Torvalds | b12b472496 |
powerpc updates for 5.12
A large series adding wrappers for our interrupt handlers, so that irq/nmi/user tracking can be isolated in the wrappers rather than spread in each handler. Conversion of the 32-bit syscall handling into C. A series from Nick to streamline our TLB flushing when using the Radix MMU. Switch to using queued spinlocks by default for 64-bit server CPUs. A rework of our PCI probing so that it happens later in boot, when more generic infrastructure is available. Two small fixes to allow 32-bit little-endian processes to run on 64-bit kernels. Other smaller features, fixes & cleanups. Thanks to: Alexey Kardashevskiy, Ananth N Mavinakayanahalli, Aneesh Kumar K.V, Athira Rajeev, Bhaskar Chowdhury, Cédric Le Goater, Chengyang Fan, Christophe Leroy, Christopher M. Riedl, Fabiano Rosas, Florian Fainelli, Frederic Barrat, Ganesh Goudar, Hari Bathini, Jiapeng Chong, Joseph J Allen, Kajol Jain, Markus Elfring, Michal Suchanek, Nathan Lynch, Naveen N. Rao, Nicholas Piggin, Oliver O'Halloran, Pingfan Liu, Po-Hsu Lin, Qian Cai, Ram Pai, Randy Dunlap, Sandipan Das, Stephen Rothwell, Tyrel Datwyler, Will Springer, Yury Norov, Zheng Yongjun. -----BEGIN PGP SIGNATURE----- iQJHBAABCAAxFiEEJFGtCPCthwEv2Y/bUevqPMjhpYAFAmAzMagTHG1wZUBlbGxl cm1hbi5pZC5hdQAKCRBR6+o8yOGlgAbBD/wMS2g1Q9oAGZPsx2NGd2RoeAauGxUs Yj6cZVmR+oa6sJyFYgEG7dT7tcwJITQxLBD3HpsHSnJ/rLrMloE33+cZNA9c4STz 0mlzm3R7M5pOgcEqZglsgLP0RQeUuHSSF01g0kf1N3r+HYtmbmPjuUIl8CnAjlbT iMD2ZN2p8/r3kDDht0iBO534HUpsqhc00duSZgQhsV/PR7ZWVxoPk7PEJeo4vXlJ 77986F7J5NLUTjMiLv5lTx49FcPbRd7a1jubsBtahJrwXj2GVvuy2i86G7HY+a+B eSxN7zJQgaFeLo0YPo7fZLBI0MAsIQt3nnZhKX0TMglbv/K8Aq64xiJqsVQdJ883 CeEt0HvSJhsSC0C4O595NEINfDhDd+5IeSF9MvsujYXiUKRXtRkm1EPuAzTcZIzW NwkCLRo33NMXa+khMKaiqF/g7INayPUXoWESx75NXFsuNfcORvstkeUuEoi5GwJo TSlmosFqwRjghQ8eTLZuWBzmh3EpPGdtC4gm6D+lbzhzjah5c/1whyuLqra275kK E3Qt0/V0ixKyvlG7MI5yYh3L7+R/hrsflH7xIJJxZp2DW6mwBJzQYmkxDbSS8PzK nWien2XgpIQhSFat3QqreEFSfNkzdN2MClVi2Y1hpAgi+2Zm9rPdPNGcQI+DSOsB kpJkjOjWNJU/PQ== =dB2S -----END PGP SIGNATURE----- Merge tag 'powerpc-5.12-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux Pull powerpc updates from Michael Ellerman: - A large series adding wrappers for our interrupt handlers, so that irq/nmi/user tracking can be isolated in the wrappers rather than spread in each handler. - Conversion of the 32-bit syscall handling into C. - A series from Nick to streamline our TLB flushing when using the Radix MMU. - Switch to using queued spinlocks by default for 64-bit server CPUs. - A rework of our PCI probing so that it happens later in boot, when more generic infrastructure is available. - Two small fixes to allow 32-bit little-endian processes to run on 64-bit kernels. - Other smaller features, fixes & cleanups. Thanks to: Alexey Kardashevskiy, Ananth N Mavinakayanahalli, Aneesh Kumar K.V, Athira Rajeev, Bhaskar Chowdhury, Cédric Le Goater, Chengyang Fan, Christophe Leroy, Christopher M. Riedl, Fabiano Rosas, Florian Fainelli, Frederic Barrat, Ganesh Goudar, Hari Bathini, Jiapeng Chong, Joseph J Allen, Kajol Jain, Markus Elfring, Michal Suchanek, Nathan Lynch, Naveen N. Rao, Nicholas Piggin, Oliver O'Halloran, Pingfan Liu, Po-Hsu Lin, Qian Cai, Ram Pai, Randy Dunlap, Sandipan Das, Stephen Rothwell, Tyrel Datwyler, Will Springer, Yury Norov, and Zheng Yongjun. * tag 'powerpc-5.12-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: (188 commits) powerpc/perf: Adds support for programming of Thresholding in P10 powerpc/pci: Remove unimplemented prototypes powerpc/uaccess: Merge raw_copy_to_user_allowed() into raw_copy_to_user() powerpc/uaccess: Merge __put_user_size_allowed() into __put_user_size() powerpc/uaccess: get rid of small constant size cases in raw_copy_{to,from}_user() powerpc/64: Fix stack trace not displaying final frame powerpc/time: Remove get_tbl() powerpc/time: Avoid using get_tbl() spi: mpc52xx: Avoid using get_tbl() powerpc/syscall: Avoid storing 'current' in another pointer powerpc/32: Handle bookE debugging in C in syscall entry/exit powerpc/syscall: Do not check unsupported scv vector on PPC32 powerpc/32: Remove the counter in global_dbcr0 powerpc/32: Remove verification of MSR_PR on syscall in the ASM entry powerpc/syscall: implement system call entry/exit logic in C for PPC32 powerpc/32: Always save non volatile GPRs at syscall entry powerpc/syscall: Change condition to check MSR_RI powerpc/syscall: Save r3 in regs->orig_r3 powerpc/syscall: Use is_compat_task() powerpc/syscall: Make interrupt.c buildable on PPC32 ... |
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Linus Torvalds | c958423470 |
Tracing updates for 5.12
- Update to the way irqs and preemption is tracked via the trace event PC field - Fix handling of unregistering event failing due to allocate memory. This is only triggered by failure injection, as it is pretty much guaranteed to have less than a page allocation succeed. - Do not show the useless "filter" or "enable" files for the "ftrace" trace system, as they have no effect on doing anything. - Add a warning if kprobes are registered more than once. - Synthetic events now have their fields parsed by semicolons. Old formats without semicolons will still work, but new features will require them. - New option to allow trace events to show %p without hashing in trace file. The trace file can only be read by root, and reading the raw event buffer did not have any pointers hashed, so this does not expose anything new. - New directory in tools called tools/tracing, where a new tool that reads sequential latency reports from the ftrace latency tracers. - Other minor fixes and cleanups. -----BEGIN PGP SIGNATURE----- iIoEABYIADIWIQRRSw7ePDh/lE+zeZMp5XQQmuv6qgUCYDL2wBQccm9zdGVkdEBn b29kbWlzLm9yZwAKCRAp5XQQmuv6qti6AP0RUcSU5U1onx8DcwPQLC5Xr3CPqJkm RvKeJDdgFP+sVgEAiMTFsy2UMc0gmlHZMFd5nZLSiJCu1I2hHmhS5yKbHgY= =fD9+ -----END PGP SIGNATURE----- Merge tag 'trace-v5.12' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace Pull tracing updates from Steven Rostedt: - Update to the way irqs and preemption is tracked via the trace event PC field - Fix handling of unregistering event failing due to allocate memory. This is only triggered by failure injection, as it is pretty much guaranteed to have less than a page allocation succeed. - Do not show the useless "filter" or "enable" files for the "ftrace" trace system, as they have no effect on doing anything. - Add a warning if kprobes are registered more than once. - Synthetic events now have their fields parsed by semicolons. Old formats without semicolons will still work, but new features will require them. - New option to allow trace events to show %p without hashing in trace file. The trace file can only be read by root, and reading the raw event buffer did not have any pointers hashed, so this does not expose anything new. - New directory in tools called tools/tracing, where a new tool that reads sequential latency reports from the ftrace latency tracers. - Other minor fixes and cleanups. * tag 'trace-v5.12' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace: (33 commits) kprobes: Fix to delay the kprobes jump optimization tracing/tools: Add the latency-collector to tools directory tracing: Make hash-ptr option default tracing: Add ptr-hash option to show the hashed pointer value tracing: Update the stage 3 of trace event macro comment tracing: Show real address for trace event arguments selftests/ftrace: Add '!event' synthetic event syntax check selftests/ftrace: Update synthetic event syntax errors tracing: Add a backward-compatibility check for synthetic event creation tracing: Update synth command errors tracing: Rework synthetic event command parsing tracing/dynevent: Delegate parsing to create function kprobes: Warn if the kprobe is reregistered ftrace: Remove unused ftrace_force_update() tracepoints: Code clean up tracepoints: Do not punish non static call users tracepoints: Remove unnecessary "data_args" macro parameter tracing: Do not create "enable" or "filter" files for ftrace event subsystem kernel: trace: preemptirq_delay_test: add cpu affinity tracepoint: Do not fail unregistering a probe due to memory failure ... |
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Linus Torvalds | 3a36281a17 |
New features:
- Support instruction latency in 'perf report', with both memory latency (weight) and instruction latency information, users can locate expensive load instructions and understand time spent in different stages. - Extend 'perf c2c' to display the number of loads which were blocked by data or address conflict. - Add 'perf stat' support for L2 topdown events in systems such as Intel's Sapphire rapids server. - Add support for PERF_SAMPLE_CODE_PAGE_SIZE in various tools, as a sort key, for instance: perf report --stdio --sort=comm,symbol,code_page_size - New 'perf daemon' command to run long running sessions while providing a way to control the enablement of events without restarting a traditional 'perf record' session. - Enable counting events for BPF programs in 'perf stat' just like for other targets (tid, cgroup, cpu, etc), e.g.: # perf stat -e ref-cycles,cycles -b 254 -I 1000 1.487903822 115,200 ref-cycles 1.487903822 86,012 cycles 2.489147029 80,560 ref-cycles 2.489147029 73,784 cycles ^C# The example above counts 'cycles' and 'ref-cycles' of BPF program of id 254. It is similar to bpftool-prog-profile command, but more flexible. - Support the new layout for PERF_RECORD_MMAP2 to carry the DSO build-id using infrastructure generalised from the eBPF subsystem, removing the need for traversing the perf.data file to collect build-ids at the end of 'perf record' sessions and helping with long running sessions where binaries can get replaced in updates, leading to possible mis-resolution of symbols. - Support filtering by hex address in 'perf script'. - Support DSO filter in 'perf script', like in other perf tools. - Add namespaces support to 'perf inject' - Add support for SDT (Dtrace Style Markers) events on ARM64. perf record: - Fix handling of eventfd() when draining a buffer in 'perf record'. - Improvements to the generation of metadata events for pre-existing threads (mmaps, comm, etc), speeding up the work done at the start of system wide or per CPU 'perf record' sessions. Hardware tracing: - Initial support for tracing KVM with Intel PT. - Intel PT fixes for IPC - Support Intel PT PSB (synchronization packets) events. - Automatically group aux-output events to overcome --filter syntax. - Enable PERF_SAMPLE_DATA_SRC on ARMs SPE. - Update ARM's CoreSight hardware tracing OpenCSD library to v1.0.0. perf annotate TUI: - Fix handling of 'k' ("show line number") hotkey - Fix jump parsing for C++ code. perf probe: - Add protection to avoid endless loop. cgroups: - Avoid reading cgroup mountpoint multiple times, caching it. - Fix handling of cgroup v1/v2 in mixed hierarchy. Symbol resolving: - Add OCaml symbol demangling. - Further fixes for handling PE executables when using perf with Wine and .exe/.dll files. - Fix 'perf unwind' DSO handling. - Resolve symbols against debug file first, to deal with artifacts related to LTO. - Fix gap between kernel end and module start on powerpc. Reporting tools: - The DSO filter shouldn't show samples in unresolved maps. - Improve debuginfod support in various tools. build ids: - Fix 16-byte build ids in 'perf buildid-cache', add a 'perf test' entry for that case. perf test: - Support for PERF_SAMPLE_WEIGHT_STRUCT. - Add test case for PERF_SAMPLE_CODE_PAGE_SIZE. - Shell based tests for 'perf daemon's commands ('start', 'stop, 'reconfig', 'list', etc). - ARM cs-etm 'perf test' fixes. - Add parse-metric memory bandwidth testcase. Compiler related: - Fix 'perf probe' kretprobe issue caused by gcc 11 bug when used with -fpatchable-function-entry. - Fix ARM64 build with gcc 11's -Wformat-overflow. - Fix unaligned access in sample parsing test. - Fix printf conversion specifier for IP addresses on arm64, s390 and powerpc. Arch specific: - Support exposing Performance Monitor Counter SPRs as part of extended regs on powerpc. - Add JSON 'perf stat' metrics for ARM64's imx8mp, imx8mq and imx8mn DDR, fix imx8mm ones. - Fix common and uarch events for ARM64's A76 and Ampere eMag Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> -----BEGIN PGP SIGNATURE----- iHUEABYIAB0WIQR2GiIUctdOfX2qHhGyPKLppCJ+JwUCYDANTQAKCRCyPKLppCJ+ J4veAQCISY1BPHscUTRYhq9cwU/Zs0ImtX7zDT4jxaP39JkduAD/eSqYavAJrtQh HDyEiTgZ7CQSp5eCbXkzrnet4n3G9QE= =H/Jk -----END PGP SIGNATURE----- Merge tag 'perf-tools-for-v5.12-2020-02-19' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux Pull perf tool updates from Arnaldo Carvalho de Melo: "New features: - Support instruction latency in 'perf report', with both memory latency (weight) and instruction latency information, users can locate expensive load instructions and understand time spent in different stages. - Extend 'perf c2c' to display the number of loads which were blocked by data or address conflict. - Add 'perf stat' support for L2 topdown events in systems such as Intel's Sapphire rapids server. - Add support for PERF_SAMPLE_CODE_PAGE_SIZE in various tools, as a sort key, for instance: perf report --stdio --sort=comm,symbol,code_page_size - New 'perf daemon' command to run long running sessions while providing a way to control the enablement of events without restarting a traditional 'perf record' session. - Enable counting events for BPF programs in 'perf stat' just like for other targets (tid, cgroup, cpu, etc), e.g.: # perf stat -e ref-cycles,cycles -b 254 -I 1000 1.487903822 115,200 ref-cycles 1.487903822 86,012 cycles 2.489147029 80,560 ref-cycles 2.489147029 73,784 cycles ^C The example above counts 'cycles' and 'ref-cycles' of BPF program of id 254. It is similar to bpftool-prog-profile command, but more flexible. - Support the new layout for PERF_RECORD_MMAP2 to carry the DSO build-id using infrastructure generalised from the eBPF subsystem, removing the need for traversing the perf.data file to collect build-ids at the end of 'perf record' sessions and helping with long running sessions where binaries can get replaced in updates, leading to possible mis-resolution of symbols. - Support filtering by hex address in 'perf script'. - Support DSO filter in 'perf script', like in other perf tools. - Add namespaces support to 'perf inject' - Add support for SDT (Dtrace Style Markers) events on ARM64. perf record: - Fix handling of eventfd() when draining a buffer in 'perf record'. - Improvements to the generation of metadata events for pre-existing threads (mmaps, comm, etc), speeding up the work done at the start of system wide or per CPU 'perf record' sessions. Hardware tracing: - Initial support for tracing KVM with Intel PT. - Intel PT fixes for IPC - Support Intel PT PSB (synchronization packets) events. - Automatically group aux-output events to overcome --filter syntax. - Enable PERF_SAMPLE_DATA_SRC on ARMs SPE. - Update ARM's CoreSight hardware tracing OpenCSD library to v1.0.0. perf annotate TUI: - Fix handling of 'k' ("show line number") hotkey - Fix jump parsing for C++ code. perf probe: - Add protection to avoid endless loop. cgroups: - Avoid reading cgroup mountpoint multiple times, caching it. - Fix handling of cgroup v1/v2 in mixed hierarchy. Symbol resolving: - Add OCaml symbol demangling. - Further fixes for handling PE executables when using perf with Wine and .exe/.dll files. - Fix 'perf unwind' DSO handling. - Resolve symbols against debug file first, to deal with artifacts related to LTO. - Fix gap between kernel end and module start on powerpc. Reporting tools: - The DSO filter shouldn't show samples in unresolved maps. - Improve debuginfod support in various tools. build ids: - Fix 16-byte build ids in 'perf buildid-cache', add a 'perf test' entry for that case. perf test: - Support for PERF_SAMPLE_WEIGHT_STRUCT. - Add test case for PERF_SAMPLE_CODE_PAGE_SIZE. - Shell based tests for 'perf daemon's commands ('start', 'stop, 'reconfig', 'list', etc). - ARM cs-etm 'perf test' fixes. - Add parse-metric memory bandwidth testcase. Compiler related: - Fix 'perf probe' kretprobe issue caused by gcc 11 bug when used with -fpatchable-function-entry. - Fix ARM64 build with gcc 11's -Wformat-overflow. - Fix unaligned access in sample parsing test. - Fix printf conversion specifier for IP addresses on arm64, s390 and powerpc. Arch specific: - Support exposing Performance Monitor Counter SPRs as part of extended regs on powerpc. - Add JSON 'perf stat' metrics for ARM64's imx8mp, imx8mq and imx8mn DDR, fix imx8mm ones. - Fix common and uarch events for ARM64's A76 and Ampere eMag" * tag 'perf-tools-for-v5.12-2020-02-19' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux: (148 commits) perf buildid-cache: Don't skip 16-byte build-ids perf buildid-cache: Add test for 16-byte build-id perf symbol: Remove redundant libbfd checks perf test: Output the sub testing result in cs-etm perf test: Suppress logs in cs-etm testing perf tools: Fix arm64 build error with gcc-11 perf intel-pt: Add documentation for tracing virtual machines perf intel-pt: Split VM-Entry and VM-Exit branches perf intel-pt: Adjust sample flags for VM-Exit perf intel-pt: Allow for a guest kernel address filter perf intel-pt: Support decoding of guest kernel perf machine: Factor out machine__idle_thread() perf machine: Factor out machines__find_guest() perf intel-pt: Amend decoder to track the NR flag perf intel-pt: Retain the last PIP packet payload as is perf intel_pt: Add vmlaunch and vmresume as branches perf script: Add branch types for VM-Entry and VM-Exit perf auxtrace: Automatically group aux-output events perf test: Fix unaligned access in sample parsing test perf tools: Support arch specific PERF_SAMPLE_WEIGHT_STRUCT processing ... |
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Linus Torvalds | b2bec7d8a4 |
printk changes for 5.12
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Linus Torvalds | 783955f03d |
linux-kselftest-kunit-5.12-rc1
This KUnit update for Linux 5.12-rc1 consists of consists of: -- support for filtering test suites using glob from Daniel Latypov. "kunit_filter.glob" command line option is passed to the UML kernel, which currently only supports filtering by suite name. This support allows running different subsets of tests, e.g. $ ./tools/testing/kunit/kunit.py build $ ./tools/testing/kunit/kunit.py exec 'list*' $ ./tools/testing/kunit/kunit.py exec 'kunit*' -- several fixes and cleanups also from Daniel Latypov. -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEPZKym/RZuOCGeA/kCwJExA0NQxwFAmAtrksACgkQCwJExA0N Qxwp3g//cOzOTjBR4eLW7lYHoC+P1RLj4Q3MHMSRhvekIQqM14MwwPrwIn0AARqs Tth/6brHBYgGh7DFq4YXQI9FwxD5RiQ0yI1x3e6P6gDwO5JQM/s4wznuR/fu+hnF SgDf7yZoBeInSAn0Zzsr7pTDVW2urEExXkBLFrlv1KJjhMdg45yvbhZR2ne6DYlX zZtOWL9rdZ7lCW4ODLl9pJJ+jDwRXBkVJR/4rUGUAXot3sTizSjijzcS5DQQP1Sw 4z5H3SZ5y9YHQHPQChCvQecZ8GrFvw+j9SF56pw14q9FsPwBUZOmb9fPI75yvrCd 5/JhvE/5jK19FH6gFwkqUsAxpeWhUxjRbMGdLHiMeX+z4xxCp86EDpXnyfv97Ho3 XS7uwcSMAL/yka+vWwaoi0URz5P9ulC8MlDHdn18+gyc+I72YFaeCPho2fYibvMI p5Vnq9ZDZl8kh1ho4vyge4oQrOBE+l8HSCva7wymFFxuQQQnbbCViznuLsq3NzaA W7YFYH87KHs+CRSyU5gJyP23+7qwiuRrw6bSS92q9mf8PDBnfW8AF0NfaDVwYv6b TaacSRDuZSXjDhkZPBi9qBB5oZ1hSUpqaRRrQU6i5RFJ+0sPUfp3QkFZh2rVBec0 OMhc8XrR2YSCld754qkefFpQEir7ut2u7jEr8JobjRvC8Dwy/CM= =zdch -----END PGP SIGNATURE----- Merge tag 'linux-kselftest-kunit-5.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest Pull KUnit updates from Shuah Khan - support for filtering test suites using glob from Daniel Latypov. "kunit_filter.glob" command line option is passed to the UML kernel, which currently only supports filtering by suite name. This support allows running different subsets of tests, e.g. $ ./tools/testing/kunit/kunit.py build $ ./tools/testing/kunit/kunit.py exec 'list*' $ ./tools/testing/kunit/kunit.py exec 'kunit*' - several fixes and cleanups also from Daniel Latypov. * tag 'linux-kselftest-kunit-5.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest: kunit: tool: fix unintentional statefulness in run_kernel() kunit: tool: add support for filtering suites by glob kunit: add kunit.filter_glob cmdline option to filter suites kunit: don't show `1 == 1` in failed assertion messages kunit: make kunit_tool accept optional path to .kunitconfig fragment Documentation: kunit: add tips.rst for small examples KUnit: Docs: make start.rst example Kconfig follow style.rst kunit: tool: simplify kconfig is_subset_of() logic minor: kunit: tool: fix unit test so it can run from non-root dir kunit: tool: use `with open()` in unit test kunit: tool: stop using bare asserts in unit test kunit: tool: fix unit test cleanup handling |
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Linus Torvalds | 80215095ce |
linux-kselftest-next-5.12-rc1
This Kselftest update for Linux 5.12-rc1 consists of: - dmabuf-heaps test fixes and cleanups from John Stultz. - seccomp test fix to accept any valid fd in user_notification_addfd. - Minor fixes to breakpoints and vDSO tests. - Minor code cleanups to ipc and x86 tests. -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEPZKym/RZuOCGeA/kCwJExA0NQxwFAmAtpXcACgkQCwJExA0N QxxJ3w//d0VQGTMp7XBmEx04Tlh31grs/pHorvN5t9TOn/3QVq1OQhHIIq7Y6Zgx hOjKOldCzgILvNTTstCfwwQv6BA0EkD0+j27yXUOHUEB0h5bNbdirP2zohxvXq0x 1MTch89rO+fFyUeeqZujs1EuMhNirENKp8Dpbe3Lw6wdBSqlkcZ/AfZJGIXlZKw2 1rIaqk80eNhXnzLSFGS/zUJCmHwxpu+xp5a6n1qNk/SYGWWUbUzyanSfCSkH/Znt 0zqG1EI6rgziUHI7Nscggj7pLQgB+udGS64Nk3RqrX85b0bfVDK947znCrlkaa5S YqSf/ldsK1AyE3qFW6MoK/ZWk0z9iLFuS/+EjWP5FlM85PDTG8UPgy6pOaVE/XrN 2z4pJadUtItLtWMYiU9x7fY9BYk679a3UJaWyW1265VZkBk4UjbCA3Xz4Y/e4RSp K6UqCAZ/OwkDFRpSt1j8PSvm3Xi17qUJZyG+TZf7lzkL2kSOnj9kjHXfwrNpud2w dk/F8Fb0uwgaPY1iRfKSQCUWvJR/ze9FcmY7+hm12k5xKH17izidutDChV9L1apn cB5mHoyIEW9v/rPFPLubTy6mv9VdJKTmGg2BeT6FL/9FkbtLcW0tvyZoKzRpy/vv HLi52H72HCuEGOVMmw4439uwx1j89igewUAYzm6/lRCjpjI8f+4= =CTFH -----END PGP SIGNATURE----- Merge tag 'linux-kselftest-next-5.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest Pull Kselftest updates from Shuah Khan: - dmabuf-heaps test fixes and cleanups from John Stultz - seccomp test fix to accept any valid fd in user_notification_addfd - Minor fixes to breakpoints and vDSO tests - Minor code cleanups to ipc and x86 tests * tag 'linux-kselftest-next-5.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest: selftests/seccomp: Accept any valid fd in user_notification_addfd selftests/timens: add futex binary to .gitignore selftests: breakpoints: Use correct error messages in breakpoint_test_arm64.c selftests/vDSO: fix ABI selftest on riscv selftests/x86/ldt_gdt: remove unneeded semicolon selftests/ipc: remove unneeded semicolon kselftests: dmabuf-heaps: Add extra checking that allocated buffers are zeroed kselftests: dmabuf-heaps: Cleanup test output kselftests: dmabuf-heaps: Softly fail if don't find a vgem device kselftests: dmabuf-heaps: Add clearer checks on DMABUF_BEGIN/END_SYNC kselftests: dmabuf-heaps: Fix Makefile's inclusion of the kernel's usr/include dir |
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Linus Torvalds | 0e63a5c6ba |
It has been a relatively quiet cycle in docsland.
- As promised, the minimum Sphinx version to build the docs is now 1.7, and we have dropped support for Python 2 entirely. That allowed the removal of a bunch of compatibility code. - A set of treewide warning fixups from Mauro that I applied after it became clear nobody else was going to deal with them. - The automarkup mechanism can now create cross-references from relative paths to RST files. - More translations, typo fixes, and warning fixes. No conflicts with any other tree as far as I know. -----BEGIN PGP SIGNATURE----- iQFDBAABCAAtFiEEIw+MvkEiF49krdp9F0NaE2wMflgFAmAq4EUPHGNvcmJldEBs d24ubmV0AAoJEBdDWhNsDH5YTIAH/1I5MlVQwuvNKjwCAEdmltQgHv6SmXSpDkrp SGuviWVXxqz8dTyo7C2R12qE/7nP8zGAmclNdX78ynl5qWaj05lQsjBgMYSoQO/F +akyLQSL8/8SQrtDPPBcboPuIz9DzkX51kkQthvCf0puJi0ScKVHO9Sk9SKUgDoK cnCE9VwpGL7YX/ee2wt91UYREijgJ9P7eQ6rqKvUZ5Itu9ikfu9vQU41GR9tOXDK MQK+k38pWdl8wRgTgA0pkVhMf1G732bxTTicvFHXcyqmCkh7++m2+ysT8O+SBBMX e5BbP0yysSqThjwFHOW5PWM1AWD5iVz+pnwJwEaJ4K76tJJOw9M= =bcDk -----END PGP SIGNATURE----- Merge tag 'docs-5.12' of git://git.lwn.net/linux Pull documentation updates from Jonathan Corbet: "It has been a relatively quiet cycle in docsland. - As promised, the minimum Sphinx version to build the docs is now 1.7, and we have dropped support for Python 2 entirely. That allowed the removal of a bunch of compatibility code. - A set of treewide warning fixups from Mauro that I applied after it became clear nobody else was going to deal with them. - The automarkup mechanism can now create cross-references from relative paths to RST files. - More translations, typo fixes, and warning fixes" * tag 'docs-5.12' of git://git.lwn.net/linux: (75 commits) docs: kernel-hacking: be more civil docs: Remove the Microsoft rhetoric Documentation/admin-guide: kernel-parameters: Update nohlt section doc/admin-guide: fix spelling mistake: "perfomance" -> "performance" docs: Document cross-referencing using relative path docs: Enable usage of relative paths to docs on automarkup docs: thermal: fix spelling mistakes Documentation: admin-guide: Update kvm/xen config option docs: Make syscalls' helpers naming consistent coding-style.rst: Avoid comma statements Documentation: /proc/loadavg: add 3 more field descriptions Documentation/submitting-patches: Add blurb about backtraces in commit messages Docs: drop Python 2 support Move our minimum Sphinx version to 1.7 Documentation: input: define ABS_PRESSURE/ABS_MT_PRESSURE resolution as grams scripts/kernel-doc: add internal hyperlink to DOC: sections Update Documentation/admin-guide/sysctl/fs.rst docs: Update DTB format references docs: zh_CN: add iio index.rst translation docs/zh_CN: add iio ep93xx_adc.rst translation ... |
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Peter Zijlstra | 724c8a23d5 |
objtool: Fix stack-swizzle for FRAME_POINTER=y
When objtool encounters the stack-swizzle:
mov %rsp, (%[tos])
mov %[tos], %rsp
...
pop %rsp
Inside a FRAME_POINTER=y build, things go a little screwy because
clearly we're not adjusting the cfa->base. This then results in the
pop %rsp not being detected as a restore of cfa->base so it will turn
into a regular POP and offset the stack, resulting in:
kernel/softirq.o: warning: objtool: do_softirq()+0xdb: return with modified stack frame
Therefore, have "mov %[tos], %rsp" act like a PUSH (it sorta is
anyway) to balance the things out. We're not too concerned with the
actual stack_size for frame-pointer builds, since we don't generate
ORC data for them anyway.
Fixes:
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Linus Torvalds | 3672ac8ac0 |
RDMA 5.12 merge window pull request
- Driver updates and bug fixes: siw, hns, bnxt_re, mlx5, efa - Significant rework in rxe to get it ready to have XRC support added - Several rts bug fixes - Big series to get to 'make W=1' cleanness, primarily updating kdocs - Support for creating a RDMA MR from a DMABUF fd to allow PCI peer to peer transfers to GPU VRAM - Device disassociation now works properly with umad - Work to support more than 255 ports on a RDMA device - Further support for the new HNS HIP09 hardware - Coding style cleanups: comma to semicolon, unneded semicolon/blank lines, remove 'h' printk format, don't check for NULL before kfree, use true/false for bool. -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEfB7FMLh+8QxL+6i3OG33FX4gmxoFAmAzvugACgkQOG33FX4g mxpE4w/9HqJF0lsHkRHhorrVZnJwO5hMs1QzY4wya+BqWtMEi5DreS/75uMiRmYH EsvO4LOvzNuP8uDjUmznRe7MLBRUg7GqIfDrxhGDIJ4tWBJ5amoordoDCY/IKcTW fBETEGcL92wTnZBxXX8jsVA+7QUYgGenFr6ozpdQ9EldQeEBb2CHzn5sxD/CCHXS k49mdk2FvPanb0r7ZIkqsDDMXjP/n7/hi9JX9fK4oCbsap0S5YavCuwVMkV0XHPe l7hjxsrztHZwrxFq846Sz0tIdwPIiHam+3CWpV5pUJxaI7xUZkgmCaXHRTeRCYRR amDOpXL7FjvUShnTyp2wUAFNR/xHdHx2uMSGR0KR5chUTmSixwD4H6xQlg2ZCvgd hAVWIliMh5mMqFy1+gz6ES98/Wh4u+Iv7ws5iQ8qQXWVB26+OyWL1l9ArVVysuXW vMIXkDR2lMk//qSz8klnqQjPR2gpjnmZ9PYq6a6EQa6xRaS3oWj2E/OWXCkdo4mv ISpqTNq/aZPz5+wsiv6ngxMl36Vof0T8rPudCuN+SGYTG4D7s3gZu3IGsB0cbqbW DMXUXLzUWx/KlMeErxWjPOQQReHZ7jq4O/A8aXBe3q13hKRlmk15MY66YFu9Poad mUuqxRavINNxqfPP0dkxpVL1/1w5QDMREP6AHQRs4AGl5qzzvhk= =Z4cZ -----END PGP SIGNATURE----- Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma Pull rdma updates from Jason Gunthorpe: "This is quite a small cycle, if not for Lee's 70 patches cleaning the kdocs it would be well below typical for patch count. Most of the interesting work here was in the HNS and rxe drivers which got fairly major internal changes. Summary: - Driver updates and bug fixes: siw, hns, bnxt_re, mlx5, efa - Significant rework in rxe to get it ready to have XRC support added - Several rts bug fixes - Big series to get to 'make W=1' cleanness, primarily updating kdocs - Support for creating a RDMA MR from a DMABUF fd to allow PCI peer to peer transfers to GPU VRAM - Device disassociation now works properly with umad - Work to support more than 255 ports on a RDMA device - Further support for the new HNS HIP09 hardware - Coding style cleanups: comma to semicolon, unneded semicolon/blank lines, remove 'h' printk format, don't check for NULL before kfree, use true/false for bool" * tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma: (205 commits) RDMA/rtrs-srv: Do not pass a valid pointer to PTR_ERR() RDMA/srp: Fix support for unpopulated and unbalanced NUMA nodes RDMA/mlx5: Fail QP creation if the device can not support the CQE TS RDMA/mlx5: Allow CQ creation without attached EQs RDMA/rtrs-srv-sysfs: fix missing put_device RDMA/rtrs-srv: fix memory leak by missing kobject free RDMA/rtrs: Only allow addition of path to an already established session RDMA/rtrs-srv: Fix stack-out-of-bounds RDMA/rxe: Remove unused pkt->offset RDMA/ucma: Fix use-after-free bug in ucma_create_uevent RDMA/core: Fix kernel doc warnings for ib_port_immutable_read() RDMA/qedr: Use true and false for bool variable RDMA/hns: Adjust definition of FRMR fields RDMA/hns: Refactor process of posting CMDQ RDMA/hns: Adjust fields and variables about CMDQ tail/head RDMA/hns: Remove redundant operations on CMDQ RDMA/hns: Fixes missing error code of CMDQ RDMA/hns: Remove unused member and variable of CMDQ RDMA/ipoib: Remove racy Subnet Manager sendonly join checks RDMA/mlx5: Support 400Gbps IB rate in mlx5 driver ... |
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Linus Torvalds | 882d6edfc4 |
gpio updates for v5.12
- new driver for the Toshiba Visconti platform - rework of interrupt handling in gpio-tegra - updates for GPIO selftests: we're now using the character device to perform the subsystem checks - support for a new rcar variant + some code refactoring - refactoring of gpio-ep93xx - SPDX License identifier has been updated in the uapi header so that userspace programs bundling it can become fully REUSE-compliant - improvements to pwm handling in gpio-mvebu - support for interrupt handling and power management for gpio-xilinx as well as some code refactoring - support for a new chip variant in gpio-pca953x - removal of drivers: zte xs & intel-mid and removal of leftovers from intel-msic - impovements to intel drivers pulled from Andy Shevchenko - improvements to the gpio-aggregator virtual GPIO driver - and several minor tweaks and fixes to code and documentation all over the place -----BEGIN PGP SIGNATURE----- iQIzBAABCAAdFiEEFp3rbAvDxGAT0sefEacuoBRx13IFAmAzzkgACgkQEacuoBRx 13K9xA//ZjxuUdX+q3tcfcljMrSAYWVK0PwxiHtjMRCcMX5Mkg/VP0Aqig0/CAWv b/98JNBLX8GxWhy4WlIVgkK2NZTrPAs3c1sYxufb7AgqmhOaqA6d1xZ0oYdhPykc H5yy55AEhiNMZCwEFWJXZSisWKsZ+Nnz+XZl5wWEsTWcvQgOGveK/+nxk//UW2Kj ymtO4LnivC7vABd/gBSZshJwjE45/os8QBS2HTKw3bcHa7p9Sd72e0zYthXzIS9J nECOSBdHMnfcIthFrQWXOXZz72xf3KjpoouztDEKqTOVFUplxQ0BxgwfrjjNd3qJ sHXtIzb3ZsGXc8yDoSmSE7ahspsP/x/uYfTxDr7dn9m9obSTWwy5vXK9xJaGGk0r TLnPZTESXqu/Eoek22ll7345RNSFlz8g0bCbO1avdtWYTxg/oaWxr1SEvznEiDZ5 I36K8XGPye1P2dZ3v08cjIUW6QGx9HEZmN3Djzh/pnMvhF72BDy/fipR4fnIJGOc ptmrHK0BWvU0fyj58TqeOXkafAulrqoKIu5sOTEkVUQlRqVF6E7pp5/KcxJv8xJs zbcmu/26MYkJYeo/AGpshhTD6EDnKnlab1VHrHgSkA5zKdVghRqqd4EGyRKUyQ5e WxEpPPG67RUIAZrmqA3eYMWncUhvD1LRTILN8ZLPlES1/9YUlIE= =OZtR -----END PGP SIGNATURE----- Merge tag 'gpio-updates-for-v5.12' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux Pull gpio updates from Bartosz Golaszewski: "It's been a relatively calm release cycle and we're actually removing more code than we're adding. Summary: - new driver for the Toshiba Visconti platform - rework of interrupt handling in gpio-tegra - updates for GPIO selftests: we're now using the character device to perform the subsystem checks - support for a new rcar variant + some code refactoring - refactoring of gpio-ep93xx - SPDX License identifier has been updated in the uapi header so that userspace programs bundling it can become fully REUSE-compliant - improvements to pwm handling in gpio-mvebu - support for interrupt handling and power management for gpio-xilinx as well as some code refactoring - support for a new chip variant in gpio-pca953x - removal of drivers: zte xs & intel-mid and removal of leftovers from intel-msic - impovements to intel drivers pulled from Andy Shevchenko - improvements to the gpio-aggregator virtual GPIO driver - and several minor tweaks and fixes to code and documentation all over the place" * tag 'gpio-updates-for-v5.12' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux: (71 commits) gpio: pcf857x: Fix missing first interrupt gpio: ep93xx: refactor base IRQ number gpio: ep93xx: refactor ep93xx_gpio_add_bank gpio: ep93xx: Fix typo s/hierarchial/hierarchical gpio: ep93xx: drop to_irq binding gpio: ep93xx: Fix wrong irq numbers in port F gpio: uapi: use the preferred SPDX license identifier gpio: gpio-xilinx: Add check if width exceeds 32 gpio: gpio-xilinx: Add support for suspend and resume gpio: gpio-xilinx: Add interrupt support gpio: gpio-xilinx: Reduce spinlock array to array gpio: gpio-xilinx: Simplify with dev_err_probe() gpio: msic: Drop driver from Makefile gpio: wcove: Split out to_ireg() helper and deduplicate the code gpio: wcove: Switch to use regmap_set_bits(), regmap_clear_bits() gpio: wcove: Get rid of error prone casting in IRQ handler gpio: intel-mid: Remove driver for deprecated platform gpio: msic: Remove driver for deprecated platform gpio: aggregator: Remove trailing comma in terminator entries gpio: aggregator: Use compound literal from the header ... |
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Linus Torvalds | 983e4adae0 |
platform-drivers-x86 for v5.12-1
- Microsoft Surface devices System Aggregator Module support - SW_TABLET_MODE reporting improvements - thinkpad_acpi keyboard language setting support - platform / DPTF profile settings support - Base / userspace API parts merged from Rafael's acpi-platform branch - thinkpad_acpi and ideapad-laptop support through pdx86 - Remove support for some obsolete Intel MID platforms through merging of the shared intel-mid-removal branch - Big cleanup of the ideapad-laptop driver - Misc. other fixes / new hw support / quirks The following is an automated git shortlog grouped by driver: ACPI: - platform-profile: Fix possible deadlock in platform_profile_remove() - platform-profile: Introduce object pointers to callbacks - platform-profile: Drop const qualifier for cur_profile - platform: Add platform profile support Documentation: - Add documentation for new platform_profile sysfs attribute Documentation/ABI: - sysfs-platform-ideapad-laptop: conservation_mode attribute - sysfs-platform-ideapad-laptop: update device attribute paths Kconfig: - add missing selects for ideapad-laptop MAINTAINERS: - update email address for Henrique de Moraes Holschuh Merge remote-tracking branch 'intel-speed-select/intel-sst' into review-hans: - Merge remote-tracking branch 'intel-speed-select/intel-sst' into review-hans Merge remote-tracking branch 'linux-pm/acpi-platform' into review-hans: - Merge remote-tracking branch 'linux-pm/acpi-platform' into review-hans Merge tag 'ib-drm-gpio-pdx86-rtc-wdt-v5.12-1' into for-next: - Merge tag 'ib-drm-gpio-pdx86-rtc-wdt-v5.12-1' into for-next Move all dell drivers to their own subdirectory: - Move all dell drivers to their own subdirectory Platform: - OLPC: Constify static struct regulator_ops - OLPC: Specify the enable time - OLPC: Remove dcon_rdev from olpc_ec_priv - OLPC: Fix probe error handling Revert "platform/x86: - ideapad-laptop: Switch touchpad attribute to be RO" acer-wmi: - Don't use ACPI_EXCEPTION() amd-pmc: - put device on error paths - Fix CONFIG_DEBUG_FS check dell-wmi-sysman: - fix a NULL pointer dereference docs: - driver-api: Add Surface Aggregator subsystem documentation drm/gma500: - Get rid of duplicate NULL checks - Convert to use new SCU IPC API gpio: - msic: Remove driver for deprecated platform - intel-mid: Remove driver for deprecated platform hp-wmi: - Disable tablet-mode reporting by default - Don't log a warning on HPWMI_RET_UNKNOWN_COMMAND errors i2c-multi-instantiate: - Don't create platform device for INT3515 ACPI nodes ideapad-laptop: - add "always on USB charging" control support - add keyboard backlight control support - send notification about touchpad state change to sysfs - fix checkpatch warnings, more consistent style - change 'cfg' debugfs file format - change 'status' debugfs file format - check for touchpad support in _CFG - check for Fn-lock support in HALS - rework is_visible() logic - rework and create new ACPI helpers - group and separate (un)related constants into enums - misc. device attribute changes - always propagate error codes from device attributes' show() callback - convert ACPI helpers to return -EIO in case of failure - use dev_{err,warn} or appropriate variant to display log messages - use msecs_to_jiffies() helper instead of hand-crafted formula - use for_each_set_bit() helper to simplify event processing - use kobj_to_dev() - use device_{add,remove}_group - use sysfs_emit() - add missing call to submodule destructor - sort includes lexicographically - use appropriately typed variable to store the return value of ACPI methods - remove unnecessary NULL checks - remove unnecessary dev_set_drvdata() call - DYTC Platform profile support - Disable touchpad_switch for ELAN0634 intel-vbtn: - Eval VBDL after registering our notifier - Add alternative method to enable switches - Create 2 separate input-devs for buttons and switches - Rework wakeup handling in notify_handler() - Drop HP Stream x360 Convertible PC 11 from allow-list - Support for tablet mode on Dell Inspiron 7352 intel_mid_powerbtn: - Remove driver for deprecated platform - Remove driver for deprecated platform intel_mid_thermal: - Remove driver for deprecated platform - Remove driver for deprecated platform intel_pmt: - Make INTEL_PMT_CLASS non-user-selectable intel_pmt_crashlog: - Add dependency on MFD_INTEL_PMT intel_pmt_telemetry: - Add dependency on MFD_INTEL_PMT intel_scu_ipc: - Increase virtual timeout from 3 to 5 seconds intel_scu_wdt: - Drop mistakenly added const - Get rid of custom x86 model comparison - Drop SCU notification - Move driver from arch/x86 msi-wmi: - Fix variable 'status' set but not used compiler warning platform/surface: - aggregator: Fix access of unaligned value - Add Surface Hot-Plug driver - surface3-wmi: Fix variable 'status' set but not used compiler warning - aggregator: Fix braces in if condition with unlikely() macro - aggregator: Fix kernel-doc references - aggregator: fix a kernel-doc markup - aggregator_cdev: Add comments regarding unchecked allocation size - aggregator_cdev: Fix access of uninitialized variables - fix potential integer overflow on shift of a int - Add Surface ACPI Notify driver - Add Surface Aggregator user-space interface - aggregator: Add dedicated bus and device type - aggregator: Add error injection capabilities - aggregator: Add trace points - aggregator: Add event item allocation caching - aggregator: Add control packet allocation caching - Add Surface Aggregator subsystem - SURFACE_PLATFORMS should depend on ACPI - surface_gpe: Fix non-PM_SLEEP build warnings platform/x86/intel-uncore-freq: - Add Sapphire Rapids server support rtc: - mrst: Remove driver for deprecated platform sony-laptop: - Remove unneeded semicolon thinkpad_acpi: - Replace ifdef CONFIG_ACPI_PLATFORM_PROFILE with depends on - Fix 'warning: no previous prototype for' warnings - Add platform profile support - fixed warning and incorporated review comments - rectify length of title underline - Don't register keyboard_lang unnecessarily - set keyboard language - Add P53/73 firmware to fan_quirk_table for dual fan control - correct palmsensor error checking tools/power/x86/intel-speed-select: - Update version to 1.8 - Add new command to get/set TRL - Add new command turbo-mode - Set higher of cpuinfo_max_freq or base_frequency - Set scaling_max_freq to base_frequency touchscreen_dmi: - Add info for the Jumper EZpad 7 tablet - Add swap-x-y quirk for Goodix touchscreen on Estar Beauty HD tablet watchdog: - intel-mid_wdt: Postpone IRQ handler registration till SCU is ready - intel_scu_watchdog: Remove driver for deprecated platform -----BEGIN PGP SIGNATURE----- iQFIBAABCAAyFiEEuvA7XScYQRpenhd+kuxHeUQDJ9wFAmAqZ5cUHGhkZWdvZWRl QHJlZGhhdC5jb20ACgkQkuxHeUQDJ9zmuwf/XLoZzs6oW7Ps9DhkyU5lk7D79rti DY4AabVnWZhJ+Yl5+qMCTjC0R0nJYoq9PCDU5q20HHSFq7PXV0fPEVo7ZOp8tPng wdzb2glbtGjSWksjj3c8eB/jjPP0tpsWptH+9jlTv9yXwQNVh/rPVltmD+z8y69U qNzySltQMtoKmQKNbktUeHA12jBldnH+QlkL8KUp5ZEVDd7gukkmAovpzEcnwk5U lrza7I52c9Ggu1pD2OCX7an9tk6N7mQ6Rk2/c6GzRsOYa6SC5Aj7fi2bs0LRdGGx Kz/gtKS3dRIreEs4LGmL8byVi7a/YvCQoTfO+MxKq/btedBwxO2edDDsRg== =B+Fz -----END PGP SIGNATURE----- Merge tag 'platform-drivers-x86-v5.12-1' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86 Pull x86 platform driver updates from Hans de Goede: "Highlights: - Microsoft Surface devices System Aggregator Module support - SW_TABLET_MODE reporting improvements - thinkpad_acpi keyboard language setting support - platform / DPTF profile settings support: - Base / userspace API parts merged from Rafael's acpi-platform branch - thinkpad_acpi and ideapad-laptop support through pdx86 - Remove support for some obsolete Intel MID platforms through merging of the shared intel-mid-removal branch - Big cleanup of the ideapad-laptop driver - Misc other fixes / new hw support / quirks" * tag 'platform-drivers-x86-v5.12-1' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86: (99 commits) platform/x86: intel_scu_ipc: Increase virtual timeout from 3 to 5 seconds platform/surface: aggregator: Fix access of unaligned value tools/power/x86/intel-speed-select: Update version to 1.8 tools/power/x86/intel-speed-select: Add new command to get/set TRL tools/power/x86/intel-speed-select: Add new command turbo-mode Platform: OLPC: Constify static struct regulator_ops platform/surface: Add Surface Hot-Plug driver platform/x86: intel_scu_wdt: Drop mistakenly added const platform/x86: Kconfig: add missing selects for ideapad-laptop platform/x86: acer-wmi: Don't use ACPI_EXCEPTION() platform/x86: thinkpad_acpi: Replace ifdef CONFIG_ACPI_PLATFORM_PROFILE with depends on platform/x86: thinkpad_acpi: Fix 'warning: no previous prototype for' warnings platform/x86: msi-wmi: Fix variable 'status' set but not used compiler warning platform/surface: surface3-wmi: Fix variable 'status' set but not used compiler warning platform/x86: Move all dell drivers to their own subdirectory Documentation/ABI: sysfs-platform-ideapad-laptop: conservation_mode attribute Documentation/ABI: sysfs-platform-ideapad-laptop: update device attribute paths platform/x86: ideapad-laptop: add "always on USB charging" control support platform/x86: ideapad-laptop: add keyboard backlight control support platform/x86: ideapad-laptop: send notification about touchpad state change to sysfs ... |
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Linus Torvalds | 3e10585335 |
x86:
- Support for userspace to emulate Xen hypercalls - Raise the maximum number of user memslots - Scalability improvements for the new MMU. Instead of the complex "fast page fault" logic that is used in mmu.c, tdp_mmu.c uses an rwlock so that page faults are concurrent, but the code that can run against page faults is limited. Right now only page faults take the lock for reading; in the future this will be extended to some cases of page table destruction. I hope to switch the default MMU around 5.12-rc3 (some testing was delayed due to Chinese New Year). - Cleanups for MAXPHYADDR checks - Use static calls for vendor-specific callbacks - On AMD, use VMLOAD/VMSAVE to save and restore host state - Stop using deprecated jump label APIs - Workaround for AMD erratum that made nested virtualization unreliable - Support for LBR emulation in the guest - Support for communicating bus lock vmexits to userspace - Add support for SEV attestation command - Miscellaneous cleanups PPC: - Support for second data watchpoint on POWER10 - Remove some complex workarounds for buggy early versions of POWER9 - Guest entry/exit fixes ARM64 - Make the nVHE EL2 object relocatable - Cleanups for concurrent translation faults hitting the same page - Support for the standard TRNG hypervisor call - A bunch of small PMU/Debug fixes - Simplification of the early init hypercall handling Non-KVM changes (with acks): - Detection of contended rwlocks (implemented only for qrwlocks, because KVM only needs it for x86) - Allow __DISABLE_EXPORTS from assembly code - Provide a saner follow_pfn replacements for modules -----BEGIN PGP SIGNATURE----- iQFIBAABCAAyFiEE8TM4V0tmI4mGbHaCv/vSX3jHroMFAmApSRgUHHBib256aW5p QHJlZGhhdC5jb20ACgkQv/vSX3jHroOc7wf9FnlinKoTFaSk7oeuuhF/CoCVwSFs Z9+A2sNI99tWHQxFR6dyDkEFeQoXnqSxfLHtUVIdH/JnTg0FkEvFz3NK+0PzY1PF PnGNbSoyhP58mSBG4gbBAxdF3ZJZMB8GBgYPeR62PvMX2dYbcHqVBNhlf6W4MQK4 5mAUuAnbf19O5N267sND+sIg3wwJYwOZpRZB7PlwvfKAGKf18gdBz5dQ/6Ej+apf P7GODZITjqM5Iho7SDm/sYJlZprFZT81KqffwJQHWFMEcxFgwzrnYPx7J3gFwRTR eeh9E61eCBDyCTPpHROLuNTVBqrAioCqXLdKOtO5gKvZI3zmomvAsZ8uXQ== =uFZU -----END PGP SIGNATURE----- Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm Pull KVM updates from Paolo Bonzini: "x86: - Support for userspace to emulate Xen hypercalls - Raise the maximum number of user memslots - Scalability improvements for the new MMU. Instead of the complex "fast page fault" logic that is used in mmu.c, tdp_mmu.c uses an rwlock so that page faults are concurrent, but the code that can run against page faults is limited. Right now only page faults take the lock for reading; in the future this will be extended to some cases of page table destruction. I hope to switch the default MMU around 5.12-rc3 (some testing was delayed due to Chinese New Year). - Cleanups for MAXPHYADDR checks - Use static calls for vendor-specific callbacks - On AMD, use VMLOAD/VMSAVE to save and restore host state - Stop using deprecated jump label APIs - Workaround for AMD erratum that made nested virtualization unreliable - Support for LBR emulation in the guest - Support for communicating bus lock vmexits to userspace - Add support for SEV attestation command - Miscellaneous cleanups PPC: - Support for second data watchpoint on POWER10 - Remove some complex workarounds for buggy early versions of POWER9 - Guest entry/exit fixes ARM64: - Make the nVHE EL2 object relocatable - Cleanups for concurrent translation faults hitting the same page - Support for the standard TRNG hypervisor call - A bunch of small PMU/Debug fixes - Simplification of the early init hypercall handling Non-KVM changes (with acks): - Detection of contended rwlocks (implemented only for qrwlocks, because KVM only needs it for x86) - Allow __DISABLE_EXPORTS from assembly code - Provide a saner follow_pfn replacements for modules" * tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (192 commits) KVM: x86/xen: Explicitly pad struct compat_vcpu_info to 64 bytes KVM: selftests: Don't bother mapping GVA for Xen shinfo test KVM: selftests: Fix hex vs. decimal snafu in Xen test KVM: selftests: Fix size of memslots created by Xen tests KVM: selftests: Ignore recently added Xen tests' build output KVM: selftests: Add missing header file needed by xAPIC IPI tests KVM: selftests: Add operand to vmsave/vmload/vmrun in svm.c KVM: SVM: Make symbol 'svm_gp_erratum_intercept' static locking/arch: Move qrwlock.h include after qspinlock.h KVM: PPC: Book3S HV: Fix host radix SLB optimisation with hash guests KVM: PPC: Book3S HV: Ensure radix guest has no SLB entries KVM: PPC: Don't always report hash MMU capability for P9 < DD2.2 KVM: PPC: Book3S HV: Save and restore FSCR in the P9 path KVM: PPC: remove unneeded semicolon KVM: PPC: Book3S HV: Use POWER9 SLBIA IH=6 variant to clear SLB KVM: PPC: Book3S HV: No need to clear radix host SLB before loading HPT guest KVM: PPC: Book3S HV: Fix radix guest SLB side channel KVM: PPC: Book3S HV: Remove support for running HPT guest on RPT host without mixed mode support KVM: PPC: Book3S HV: Introduce new capability for 2nd DAWR KVM: PPC: Book3S HV: Add infrastructure to support 2nd DAWR ... |
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Linus Torvalds | 99ca0edb41 |
arm64 updates for 5.12
- vDSO build improvements including support for building with BSD. - Cleanup to the AMU support code and initialisation rework to support cpufreq drivers built as modules. - Removal of synthetic frame record from exception stack when entering the kernel from EL0. - Add support for the TRNG firmware call introduced by Arm spec DEN0098. - Cleanup and refactoring across the board. - Avoid calling arch_get_random_seed_long() from add_interrupt_randomness() - Perf and PMU updates including support for Cortex-A78 and the v8.3 SPE extensions. - Significant steps along the road to leaving the MMU enabled during kexec relocation. - Faultaround changes to initialise prefaulted PTEs as 'old' when hardware access-flag updates are supported, which drastically improves vmscan performance. - CPU errata updates for Cortex-A76 (#1463225) and Cortex-A55 (#1024718) - Preparatory work for yielding the vector unit at a finer granularity in the crypto code, which in turn will one day allow us to defer softirq processing when it is in use. - Support for overriding CPU ID register fields on the command-line. -----BEGIN PGP SIGNATURE----- iQFEBAABCgAuFiEEPxTL6PPUbjXGY88ct6xw3ITBYzQFAmAmwZcQHHdpbGxAa2Vy bmVsLm9yZwAKCRC3rHDchMFjNLA1B/0XMwWUhmJ4ZPK4sr28YWHNGLuCFHDgkMKU dEmS806OF9d0J7fTczGsKdS4IKtXWko67Z0UGiPIStwfm0itSW2Zgbo9KZeDPqPI fH0s23nQKxUMyNW7b9p4cTV3YuGVMZSBoMug2jU2DEDpSqeGBk09NPi6inERBCz/ qZxcqXTKxXbtOY56eJmq09UlFZiwfONubzuCrrUH7LU8ZBSInM/6Q4us/oVm4zYI Pnv996mtL4UxRqq/KoU9+cQ1zsI01kt9/coHwfCYvSpZEVAnTWtfECsJ690tr3mF TSKQLvOzxbDtU+HcbkNVKW0A38EIO1xXr8yXW9SJx6BJBkyb24xo =IwMb -----END PGP SIGNATURE----- Merge tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux Pull arm64 updates from Will Deacon: - vDSO build improvements including support for building with BSD. - Cleanup to the AMU support code and initialisation rework to support cpufreq drivers built as modules. - Removal of synthetic frame record from exception stack when entering the kernel from EL0. - Add support for the TRNG firmware call introduced by Arm spec DEN0098. - Cleanup and refactoring across the board. - Avoid calling arch_get_random_seed_long() from add_interrupt_randomness() - Perf and PMU updates including support for Cortex-A78 and the v8.3 SPE extensions. - Significant steps along the road to leaving the MMU enabled during kexec relocation. - Faultaround changes to initialise prefaulted PTEs as 'old' when hardware access-flag updates are supported, which drastically improves vmscan performance. - CPU errata updates for Cortex-A76 (#1463225) and Cortex-A55 (#1024718) - Preparatory work for yielding the vector unit at a finer granularity in the crypto code, which in turn will one day allow us to defer softirq processing when it is in use. - Support for overriding CPU ID register fields on the command-line. * tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: (85 commits) drivers/perf: Replace spin_lock_irqsave to spin_lock mm: filemap: Fix microblaze build failure with 'mmu_defconfig' arm64: Make CPU_BIG_ENDIAN depend on ld.bfd or ld.lld 13.0.0+ arm64: cpufeatures: Allow disabling of Pointer Auth from the command-line arm64: Defer enabling pointer authentication on boot core arm64: cpufeatures: Allow disabling of BTI from the command-line arm64: Move "nokaslr" over to the early cpufeature infrastructure KVM: arm64: Document HVC_VHE_RESTART stub hypercall arm64: Make kvm-arm.mode={nvhe, protected} an alias of id_aa64mmfr1.vh=0 arm64: Add an aliasing facility for the idreg override arm64: Honor VHE being disabled from the command-line arm64: Allow ID_AA64MMFR1_EL1.VH to be overridden from the command line arm64: cpufeature: Add an early command-line cpufeature override facility arm64: Extract early FDT mapping from kaslr_early_init() arm64: cpufeature: Use IDreg override in __read_sysreg_by_encoding() arm64: cpufeature: Add global feature override facility arm64: Move SCTLR_EL1 initialisation to EL-agnostic code arm64: Simplify init_el2_state to be non-VHE only arm64: Move VHE-specific SPE setup to mutate_to_vhe() arm64: Drop early setting of MDSCR_EL2.TPMS ... |
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Linus Torvalds | 657bd90c93 |
Scheduler updates for v5.12:
[ NOTE: unfortunately this tree had to be freshly rebased today, it's a same-content tree of 82891be90f3c (-next published) merged with v5.11. The main reason for the rebase was an authorship misattribution problem with a new commit, which we noticed in the last minute, and which we didn't want to be merged upstream. The offending commit was deep in the tree, and dependent commits had to be rebased as well. ] - Core scheduler updates: - Add CONFIG_PREEMPT_DYNAMIC: this in its current form adds the preempt=none/voluntary/full boot options (default: full), to allow distros to build a PREEMPT kernel but fall back to close to PREEMPT_VOLUNTARY (or PREEMPT_NONE) runtime scheduling behavior via a boot time selection. There's also the /debug/sched_debug switch to do this runtime. This feature is implemented via runtime patching (a new variant of static calls). The scope of the runtime patching can be best reviewed by looking at the sched_dynamic_update() function in kernel/sched/core.c. ( Note that the dynamic none/voluntary mode isn't 100% identical, for example preempt-RCU is available in all cases, plus the preempt count is maintained in all models, which has runtime overhead even with the code patching. ) The PREEMPT_VOLUNTARY/PREEMPT_NONE models, used by the vast majority of distributions, are supposed to be unaffected. - Fix ignored rescheduling after rcu_eqs_enter(). This is a bug that was found via rcutorture triggering a hang. The bug is that rcu_idle_enter() may wake up a NOCB kthread, but this happens after the last generic need_resched() check. Some cpuidle drivers fix it by chance but many others don't. In true 2020 fashion the original bug fix has grown into a 5-patch scheduler/RCU fix series plus another 16 RCU patches to address the underlying issue of missed preemption events. These are the initial fixes that should fix current incarnations of the bug. - Clean up rbtree usage in the scheduler, by providing & using the following consistent set of rbtree APIs: partial-order; less() based: - rb_add(): add a new entry to the rbtree - rb_add_cached(): like rb_add(), but for a rb_root_cached total-order; cmp() based: - rb_find(): find an entry in an rbtree - rb_find_add(): find an entry, and add if not found - rb_find_first(): find the first (leftmost) matching entry - rb_next_match(): continue from rb_find_first() - rb_for_each(): iterate a sub-tree using the previous two - Improve the SMP/NUMA load-balancer: scan for an idle sibling in a single pass. This is a 4-commit series where each commit improves one aspect of the idle sibling scan logic. - Improve the cpufreq cooling driver by getting the effective CPU utilization metrics from the scheduler - Improve the fair scheduler's active load-balancing logic by reducing the number of active LB attempts & lengthen the load-balancing interval. This improves stress-ng mmapfork performance. - Fix CFS's estimated utilization (util_est) calculation bug that can result in too high utilization values - Misc updates & fixes: - Fix the HRTICK reprogramming & optimization feature - Fix SCHED_SOFTIRQ raising race & warning in the CPU offlining code - Reduce dl_add_task_root_domain() overhead - Fix uprobes refcount bug - Process pending softirqs in flush_smp_call_function_from_idle() - Clean up task priority related defines, remove *USER_*PRIO and USER_PRIO() - Simplify the sched_init_numa() deduplication sort - Documentation updates - Fix EAS bug in update_misfit_status(), which degraded the quality of energy-balancing - Smaller cleanups Signed-off-by: Ingo Molnar <mingo@kernel.org> -----BEGIN PGP SIGNATURE----- iQJFBAABCgAvFiEEBpT5eoXrXCwVQwEKEnMQ0APhK1gFAmAtHBsRHG1pbmdvQGtl cm5lbC5vcmcACgkQEnMQ0APhK1itgg/+NGed12pgPjYBzesdou60Lvx7LZLGjfOt M1F1EnmQGn/hEH2fCY6ZoqIZQTVltm7GIcBNabzYTzlaHZsdtyuDUJBZyj19vTlk zekcj7WVt+qvfjChaNwEJhQ9nnOM/eohMgEOHMAAJd9zlnQvve7NOLQ56UDM+kn/ 9taFJ5ZPvb4avP6C5p3KivvKex6Bjof/Tl0m3utpNyPpI/qK3FyGxwdgCxU0yepT ABWQX5ZQCufFvo1bgnBPfqyzab4MqhoM3bNKBsLQfuAlssG1xRv4KQOev4dRwrt9 pXJikV5C9yez5d2lGe5p0ltH5IZS/l9x2yI/ZQj3OUDTFyV1ic6WfFAqJgDzVF8E i/vvA4NPQiI241Bkps+ErcCw4aVOgiY6TWli74cHjLUIX0+As6aHrFWXGSxUmiHB WR+B8KmdfzRTTlhOxMA+cvlpZcKCfxWkJJmXzr/lDZzIuKPqM3QCE2wD9sixkfVo JNICT0IvZghWOdbMEfZba8Psh/e2LVI9RzdpEiuYJz1ZrVlt1hO0M6jBxY0hMz9n k54z81xODw0a8P2FHMtpmB1vhAeqCmvwA6DO8z0Oxs0DFi+KM2bLf2efHsCKafI+ Bm5v9YFaOk/55R76hJVh+aYLlyFgFkKd+P/niJTPDnxOk3SqJuXvTrql1HeGHkNr kYgQa23dsZk= =pyaG -----END PGP SIGNATURE----- Merge tag 'sched-core-2021-02-17' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull scheduler updates from Ingo Molnar: "Core scheduler updates: - Add CONFIG_PREEMPT_DYNAMIC: this in its current form adds the preempt=none/voluntary/full boot options (default: full), to allow distros to build a PREEMPT kernel but fall back to close to PREEMPT_VOLUNTARY (or PREEMPT_NONE) runtime scheduling behavior via a boot time selection. There's also the /debug/sched_debug switch to do this runtime. This feature is implemented via runtime patching (a new variant of static calls). The scope of the runtime patching can be best reviewed by looking at the sched_dynamic_update() function in kernel/sched/core.c. ( Note that the dynamic none/voluntary mode isn't 100% identical, for example preempt-RCU is available in all cases, plus the preempt count is maintained in all models, which has runtime overhead even with the code patching. ) The PREEMPT_VOLUNTARY/PREEMPT_NONE models, used by the vast majority of distributions, are supposed to be unaffected. - Fix ignored rescheduling after rcu_eqs_enter(). This is a bug that was found via rcutorture triggering a hang. The bug is that rcu_idle_enter() may wake up a NOCB kthread, but this happens after the last generic need_resched() check. Some cpuidle drivers fix it by chance but many others don't. In true 2020 fashion the original bug fix has grown into a 5-patch scheduler/RCU fix series plus another 16 RCU patches to address the underlying issue of missed preemption events. These are the initial fixes that should fix current incarnations of the bug. - Clean up rbtree usage in the scheduler, by providing & using the following consistent set of rbtree APIs: partial-order; less() based: - rb_add(): add a new entry to the rbtree - rb_add_cached(): like rb_add(), but for a rb_root_cached total-order; cmp() based: - rb_find(): find an entry in an rbtree - rb_find_add(): find an entry, and add if not found - rb_find_first(): find the first (leftmost) matching entry - rb_next_match(): continue from rb_find_first() - rb_for_each(): iterate a sub-tree using the previous two - Improve the SMP/NUMA load-balancer: scan for an idle sibling in a single pass. This is a 4-commit series where each commit improves one aspect of the idle sibling scan logic. - Improve the cpufreq cooling driver by getting the effective CPU utilization metrics from the scheduler - Improve the fair scheduler's active load-balancing logic by reducing the number of active LB attempts & lengthen the load-balancing interval. This improves stress-ng mmapfork performance. - Fix CFS's estimated utilization (util_est) calculation bug that can result in too high utilization values Misc updates & fixes: - Fix the HRTICK reprogramming & optimization feature - Fix SCHED_SOFTIRQ raising race & warning in the CPU offlining code - Reduce dl_add_task_root_domain() overhead - Fix uprobes refcount bug - Process pending softirqs in flush_smp_call_function_from_idle() - Clean up task priority related defines, remove *USER_*PRIO and USER_PRIO() - Simplify the sched_init_numa() deduplication sort - Documentation updates - Fix EAS bug in update_misfit_status(), which degraded the quality of energy-balancing - Smaller cleanups" * tag 'sched-core-2021-02-17' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (51 commits) sched,x86: Allow !PREEMPT_DYNAMIC entry/kvm: Explicitly flush pending rcuog wakeup before last rescheduling point entry: Explicitly flush pending rcuog wakeup before last rescheduling point rcu/nocb: Trigger self-IPI on late deferred wake up before user resume rcu/nocb: Perform deferred wake up before last idle's need_resched() check rcu: Pull deferred rcuog wake up to rcu_eqs_enter() callers sched/features: Distinguish between NORMAL and DEADLINE hrtick sched/features: Fix hrtick reprogramming sched/deadline: Reduce rq lock contention in dl_add_task_root_domain() uprobes: (Re)add missing get_uprobe() in __find_uprobe() smp: Process pending softirqs in flush_smp_call_function_from_idle() sched: Harden PREEMPT_DYNAMIC static_call: Allow module use without exposing static_call_key sched: Add /debug/sched_preempt preempt/dynamic: Support dynamic preempt with preempt= boot option preempt/dynamic: Provide irqentry_exit_cond_resched() static call preempt/dynamic: Provide preempt_schedule[_notrace]() static calls preempt/dynamic: Provide cond_resched() and might_resched() static calls preempt: Introduce CONFIG_PREEMPT_DYNAMIC static_call: Provide DEFINE_STATIC_CALL_RET0() ... |
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Linus Torvalds | 9eef023345 |
These are the v5.12 updates for the locking subsystem:
- Core locking primitives updates: - Remove mutex_trylock_recursive() from the API - no users left - Simplify + constify the futex code a bit - Lockdep updates: - Teach lockdep about local_lock_t - Add CONFIG_DEBUG_IRQFLAGS=y debug config option to check for potentially unsafe IRQ mask restoration patterns. (I.e. calling raw_local_irq_restore() with IRQs enabled.) - Add wait context self-tests - Fix graph lock corner case corrupting internal data structures - Fix noinstr annotations - LKMM updates: - Simplify the litmus tests - Documentation fixes - KCSAN updates: - Re-enable KCSAN instrumentation in lib/random32.c - Misc fixes: - Don't branch-trace static label APIs - DocBook fix - Remove stale leftover empty file Signed-off-by: Ingo Molnar <mingo@kernel.org> -----BEGIN PGP SIGNATURE----- iQJFBAABCgAvFiEEBpT5eoXrXCwVQwEKEnMQ0APhK1gFAmAs//sRHG1pbmdvQGtl cm5lbC5vcmcACgkQEnMQ0APhK1im+g/9G8taVrfiBQ7hg4PoEo28w8fzu5pGBOWd rYzUNJO96dW262FbQE6txGDBeGEahnVTz1sGwqKcy1NfZgQBCWj4uZMOluyECrY3 SV8Iccz2+M6CV+pyjM6Agm7OrgEHxlB/oorZy3TD6s2YeuR6nVGfO3vAXbNNeAsk N8TR5mKY8ELbKXkjrc4KauOOiaqsQmVMuV/l/1DLoydDxATYq4Fczh0lcIdwMtYB pqzWAKa0Qy2mKcHXe2YMYjddn2JEcDWNGJCsmZTa6m45aaAW1XyICLLxcQ2X8aL+ aj9rxYTBkZl9vAjrICfbJTtYku6fN48JiDoNRQxUShGVmVKAlHxYQ4vZ7dJz0NHz EdRrd9JIr25ImXNHlX2KCKGc/aUm4TvDtNVXCdxVlZGwnEEF8J5VocWKRKmXmA1W MkAvPnXnynqRfcMkFaTtTfdMTan41uEixwEnUy++JTuNSMx2ie3VGMC0MgxvTBiH iKN5iVtZVa1mUN2593Jd1qdZvGQMeIydMj+WaT4xh5hptjLCGLg4yPgYuoO7vNMT uEfv8oODvTN8BqEixNP1Ef9pzxujuSiPoO4ZO4DNnbJJZVw1TwAZIK5Zz1wR1Zso Wf1LKPaEOyqz5cFAJ/OxcnxvxMv3fat0vhLNzJlBEFEgKmfRhbsQVUNNL1AcdMJA +Npbj/v5seo= =BYju -----END PGP SIGNATURE----- Merge tag 'locking-core-2021-02-17' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull locking updates from Ingo Molnar: "Core locking primitives updates: - Remove mutex_trylock_recursive() from the API - no users left - Simplify + constify the futex code a bit Lockdep updates: - Teach lockdep about local_lock_t - Add CONFIG_DEBUG_IRQFLAGS=y debug config option to check for potentially unsafe IRQ mask restoration patterns. (I.e. calling raw_local_irq_restore() with IRQs enabled.) - Add wait context self-tests - Fix graph lock corner case corrupting internal data structures - Fix noinstr annotations LKMM updates: - Simplify the litmus tests - Documentation fixes KCSAN updates: - Re-enable KCSAN instrumentation in lib/random32.c Misc fixes: - Don't branch-trace static label APIs - DocBook fix - Remove stale leftover empty file" * tag 'locking-core-2021-02-17' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (24 commits) checkpatch: Don't check for mutex_trylock_recursive() locking/mutex: Kill mutex_trylock_recursive() s390: Use arch_local_irq_{save,restore}() in early boot code lockdep: Noinstr annotate warn_bogus_irq_restore() locking/lockdep: Avoid unmatched unlock locking/rwsem: Remove empty rwsem.h locking/rtmutex: Add missing kernel-doc markup futex: Remove unneeded gotos futex: Change utime parameter to be 'const ... *' lockdep: report broken irq restoration jump_label: Do not profile branch annotations locking: Add Reviewers locking/selftests: Add local_lock inversion tests locking/lockdep: Exclude local_lock_t from IRQ inversions locking/lockdep: Clean up check_redundant() a bit locking/lockdep: Add a skip() function to __bfs() locking/lockdep: Mark local_lock_t locking/selftests: More granular debug_locks_verbose lockdep/selftest: Add wait context selftests tools/memory-model: Fix typo in klitmus7 compatibility table ... |
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Linus Torvalds | d089f48fba |
These are the latest RCU updates for v5.12:
- Documentation updates. - Miscellaneous fixes. - kfree_rcu() updates: Addition of mem_dump_obj() to provide allocator return addresses to more easily locate bugs. This has a couple of RCU-related commits, but is mostly MM. Was pulled in with akpm's agreement. - Per-callback-batch tracking of numbers of callbacks, which enables better debugging information and smarter reactions to large numbers of callbacks. - The first round of changes to allow CPUs to be runtime switched from and to callback-offloaded state. - CONFIG_PREEMPT_RT-related changes. - RCU CPU stall warning updates. - Addition of polling grace-period APIs for SRCU. - Torture-test and torture-test scripting updates, including a "torture everything" script that runs rcutorture, locktorture, scftorture, rcuscale, and refscale. Plus does an allmodconfig build. - nolibc fixes for the torture tests Signed-off-by: Ingo Molnar <mingo@kernel.org> -----BEGIN PGP SIGNATURE----- iQJFBAABCgAvFiEEBpT5eoXrXCwVQwEKEnMQ0APhK1gFAmAs9lgRHG1pbmdvQGtl cm5lbC5vcmcACgkQEnMQ0APhK1j/axAAsqIvarDD6OLmgcOPCyWSvfG6LsIFgqI9 CY0JdQBtvFBTvE8Q2No5ktbLVmuYsBh0dGeFkv4HQZJyRlr7mjstVMNN4SeBDVIS /+zZO1wlwzaXfKQopLctTK1O/UzFqIN2sqyzA3nLzGGj8DqgxXJyreJ10feK5XM+ 6ttZPd1qm4hqtpA22ZEODbct5OFqZuvnK8VNqBb2YHabA1rasUXbIEJPBpsuv/W2 l9W5AGP4erdOFm3nHJxiCpvLJtgHy4njvw0HJp5f99Abj6OVeAzw5kFjvRB3n1Qd ayKyTw8T/1mfmkjvYkGsMAqhEmqwXcryFX0dR/14/XPdXyjPhZlbkz+MfRKrn4NT LBJPX+MlX9lVFWBNR9HMe2o/083+gorlwZt9wtyt0OBBGGgudYo4uKNdbyy6tB3Y Gb98P2vtVSO24EsQce6M+ppHN4TgVBd6id82MQxNuFw+PQJdBiCY0JJfNQApbAry cIKOchSSR2SkJHlAevNVaKAeiTnkAXd1jDBKtCnvCqOUyvtnhE3rQCqwS5xT2Cno oQydpudwBKT7uO/GUyS0ESErjHuy9zhExNSYD0ydxlBCrGbzrrgPg57ntXHA1die mtFyvc2tfT/AshWRNYiuCG+eaUG3qK7n7jN7Vc6/K5DR4GMb5tOhL9wPx2ljCRGu Z8WDg0pJGz4= =31yj -----END PGP SIGNATURE----- Merge tag 'core-rcu-2021-02-17' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull RCU updates from Ingo Molnar: "These are the latest RCU updates for v5.12: - Documentation updates. - Miscellaneous fixes. - kfree_rcu() updates: Addition of mem_dump_obj() to provide allocator return addresses to more easily locate bugs. This has a couple of RCU-related commits, but is mostly MM. Was pulled in with akpm's agreement. - Per-callback-batch tracking of numbers of callbacks, which enables better debugging information and smarter reactions to large numbers of callbacks. - The first round of changes to allow CPUs to be runtime switched from and to callback-offloaded state. - CONFIG_PREEMPT_RT-related changes. - RCU CPU stall warning updates. - Addition of polling grace-period APIs for SRCU. - Torture-test and torture-test scripting updates, including a "torture everything" script that runs rcutorture, locktorture, scftorture, rcuscale, and refscale. Plus does an allmodconfig build. - nolibc fixes for the torture tests" * tag 'core-rcu-2021-02-17' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (130 commits) percpu_ref: Dump mem_dump_obj() info upon reference-count underflow rcu: Make call_rcu() print mem_dump_obj() info for double-freed callback mm: Make mem_obj_dump() vmalloc() dumps include start and length mm: Make mem_dump_obj() handle vmalloc() memory mm: Make mem_dump_obj() handle NULL and zero-sized pointers mm: Add mem_dump_obj() to print source of memory block tools/rcutorture: Fix position of -lgcc in mkinitrd.sh tools/nolibc: Fix position of -lgcc in the documented example tools/nolibc: Emit detailed error for missing alternate syscall number definitions tools/nolibc: Remove incorrect definitions of __ARCH_WANT_* tools/nolibc: Get timeval, timespec and timezone from linux/time.h tools/nolibc: Implement poll() based on ppoll() tools/nolibc: Implement fork() based on clone() tools/nolibc: Make getpgrp() fall back to getpgid(0) tools/nolibc: Make dup2() rely on dup3() when available tools/nolibc: Add the definition for dup() rcutorture: Add rcutree.use_softirq=0 to RUDE01 and TASKS01 torture: Maintain torture-specific set of CPUs-online books torture: Clean up after torture-test CPU hotplugging rcutorture: Make object_debug also double call_rcu() heap object ... |
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Linus Torvalds | 3c8f504b3a |
ACPI updates for 5.12-rc1
- Update ACPICA code in the kernel to upstream revision 20201113 with changes as follows: * Remove the MTMR (Mid-Timer) table (Al Stone). * Remove the VRTC table (Al Stone). * Add type casts for string functions (Bob Moore). * Update all copyrights to 2021 (Bob Moore). * Fix exception code class checks (Maximilian Luz). * Clean up exception code class checks (Maximilian Luz). * Fix -Wfallthrough (Nick Desaulniers). - Add support for setting and reading global profile of the platform along with documentation (Mark Pearson, Hans de Goede, Jiaxun Yang). - Fix fwnode properties matching and clean up the code handling device properties and its documentation (Rafael Wysocki, Andy Shevchenko). - Clean up ACPI-based device enumeration code (Rafael Wysocki). - Clean up the CPPC support library code (Ionela Voinescu). - Clean up the APEI support code (Yang Li, Yazen Ghannam). - Update GPIO-related properties documentation (Flavio Suligoi). - Consolidate and clean up the printing of messages in several places (Rafael Wysocki). - Fix error code path in configfs handling code (Qinglang Miao). - Use DEVICE_ATTR_<RW|RO|WO> macros where applicable (Dwaipayan Ray). - Replace tests for !ACPI_FAILURE with tests for ACPI_SUCCESS in multiple places (Bjorn Helgaas). -----BEGIN PGP SIGNATURE----- iQJGBAABCAAwFiEE4fcc61cGeeHD/fCwgsRv/nhiVHEFAmAqu2wSHHJqd0Byand5 c29ja2kubmV0AAoJEILEb/54YlRxyWYQAIGKknnitF3TxHyXj5Ka+RQXlvygYAZo 9rQHy9EwUjkWpEiMZf87haWr3bp3EY1y7CnSdYiL9JgRJP9bqXI4ZQO8R2vXpV03 NJ46NO7/qNGF1dp5Zbt/QSObkk1yloqNPzU3gH/yo+xNHEc0OzjD9roJr7QA1Oes ibCCmSG9mpMOVdNCzwIK+hiY6IdQCWIQyY/DZwTaf66U1+ZVTLsWNtVWzADNOKIz DcXW54LZAt7c8kNcwwRxqAac+JOQ/RWBpvnexwgPEV82blad/+nd9egHlTjiEJCl fxBmnMNqRcClrgo5SCvJNh1Z17d3bzhPUbF1K2RMiim2JSRXAZxK8euxVGTff2zI SKsgFcOqLPHYtM0po5V7fgYCRnk6M1aI44s26JCei5hSM1TrlwddKIuR/D42/73O F4TCGmkJMEUFltkpUAqo4gqoZcB7TZW/YX7pjy59yNw0VP8mGQSu+xU1SEdvasTg XYbVeFUoDe6QLGqu8ukDq7GeXnV16t6Q2b2A+RxmFaKFZGGUH+IPKQp1XbGLnhnM JKirrQnwwHqCZOu7D4LoSOgUvHYIF7B+nTA10QA5liq3XvYwjszFOG79cBImSaeV jxx7rgoZ55H45gfB2kQE6OwO7RmFZ4bEB4/k/Oav7ewOPFiY5hrxJt2OIaJYLE87 pcGH533ZlBoS =WpL7 -----END PGP SIGNATURE----- Merge tag 'acpi-5.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm Pull ACPI updates from Rafael Wysocki: "These update the ACPICA code in the kernel to upstream revision 20210105, fix and clean up the handling of device properties, add support for setting global profile of the platform, clean up device enumeration, the CPPC library, the APEI support and more, update the documentation, consolidate the printing of messages in several places and make assorted janitorial changes. Specifics: - Update ACPICA code in the kernel to upstream revision 20201113 with changes as follows: * Remove the MTMR (Mid-Timer) table (Al Stone). * Remove the VRTC table (Al Stone). * Add type casts for string functions (Bob Moore). * Update all copyrights to 2021 (Bob Moore). * Fix exception code class checks (Maximilian Luz). * Clean up exception code class checks (Maximilian Luz). * Fix -Wfallthrough (Nick Desaulniers). - Add support for setting and reading global profile of the platform along with documentation (Mark Pearson, Hans de Goede, Jiaxun Yang). - Fix fwnode properties matching and clean up the code handling device properties and its documentation (Rafael Wysocki, Andy Shevchenko). - Clean up ACPI-based device enumeration code (Rafael Wysocki). - Clean up the CPPC support library code (Ionela Voinescu). - Clean up the APEI support code (Yang Li, Yazen Ghannam). - Update GPIO-related properties documentation (Flavio Suligoi). - Consolidate and clean up the printing of messages in several places (Rafael Wysocki). - Fix error code path in configfs handling code (Qinglang Miao). - Use DEVICE_ATTR_<RW|RO|WO> macros where applicable (Dwaipayan Ray). - Replace tests for !ACPI_FAILURE with tests for ACPI_SUCCESS in multiple places (Bjorn Helgaas)" * tag 'acpi-5.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (44 commits) ACPI: property: Satisfy kernel doc validator (part 2) ACPI: property: Satisfy kernel doc validator (part 1) ACPI: property: Make acpi_node_prop_read() static ACPI: property: Remove dead code ACPI: property: Fix fwnode string properties matching ACPI: OSL: Clean up printing messages ACPI: OSL: Rework acpi_check_resource_conflict() ACPI: APEI: ERST: remove unneeded semicolon ACPI: thermal: Clean up printing messages ACPI: video: Clean up printing messages ACPI: button: Clean up printing messages ACPI: battery: Clean up printing messages ACPI: AC: Clean up printing messages ACPI: bus: Drop ACPI_BUS_COMPONENT which is not used any more ACPI: utils: Clean up printing messages ACPI: scan: Clean up printing messages ACPI: bus: Clean up printing messages ACPI: PM: Clean up printing messages ACPI: power: Clean up printing messages ACPI: APEI: Add is_generic_error() to identify GHES sources ... |
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Linus Torvalds | 02f9fc286e |
Power management updates for 5.12-rc1
- Add new power capping facility called DTPM (Dynamic Thermal Power Management), based on the existing power capping framework, to allow aggregate power constraints to be applied to sets of devices in a distributed manner, along with a CPU backend driver based on the Energy Model (Daniel Lezcano, Dan Carpenter, Colin Ian King). - Add AlderLake Mobile support to the Intel RAPL power capping driver and make it use the topology interface when laying out the system topology (Zhang Rui, Yunfeng Ye). - Drop the cpufreq tango driver belonging to a platform that is not supported any more (Arnd Bergmann). - Drop the redundant CPUFREQ_STICKY and CPUFREQ_PM_NO_WARN cpufreq driver flags (Viresh Kumar). - Update cpufreq drivers: * Fix max CPU frequency discovery in the intel_pstate driver and make janitorial changes in it (Chen Yu, Rafael Wysocki, Nigel Christian). * Fix resource leaks in the brcmstb-avs-cpufreq driver (Christophe JAILLET). * Make the tegra20 driver use the resource-managed API (Dmitry Osipenko). * Enable boost support in the qcom-hw driver (Shawn Guo). - Update the operating performance points (OPP) framework: * Clean up the OPP core (Dmitry Osipenko, Viresh Kumar). * Extend the OPP API by adding new helpers to it (Dmitry Osipenko, Viresh Kumar). * Allow required OPPs to be used for devfreq devices and update the devfreq governor code accordingly (Saravana Kannan). * Prepare the framework for introducing new dev_pm_opp_set_opp() helper (Viresh Kumar). * Drop dev_pm_opp_set_bw() and update related drivers (Viresh Kumar). * Allow lazy linking of required-OPPs (Viresh Kumar). - Simplify and clean up devfreq somewhat (Lukasz Luba, Yang Li, Pierre Kuo). - Update the generic power domains (genpd) framework: * Use device's next wakeup to determine domain idle state (Lina Iyer). * Improve initialization and debug (Dmitry Osipenko). * Simplify computations (Abaci Team). - Make janitorial changes in the core code handling system sleep and PM-runtime (Bhaskar Chowdhury, Bjorn Helgaas, Rikard Falkeborn, Zqiang). - Update the MAINTAINERS entry for the exynos cpuidle driver and drop DEBUG definition from intel_idle (Krzysztof Kozlowski, Tom Rix). - Extend the PM clock layer to cover clocks that must sleep (Nicolas Pitre). - Update the cpupower utility: * Update cpupower command, add support for AMD family 0x19 and clean up the code to remove many of the family checks to make future family updates easier (Nathan Fontenot, Robert Richter). * Add Makefile dependencies for install targets to allow building cpupower in parallel rather than serially (Ivan Babrou). - Make janitorial changes in power management Kconfig (Lukasz Luba). -----BEGIN PGP SIGNATURE----- iQJGBAABCAAwFiEE4fcc61cGeeHD/fCwgsRv/nhiVHEFAmAquvMSHHJqd0Byand5 c29ja2kubmV0AAoJEILEb/54YlRx7MEQAIFx7WGu0TquvYYbX1Op4oxHaN5wLZba XZjh5g4dSn+fKF+WXO4+Ze8VwFx2E6p2650OYJ9A3H83yqjWz5x0CoYm++LTWkWJ CRPhyAL2JzrqDL2oJ/7XdK41cz/DT1p2B5cdOVeI4OaLhTzLa4TAO3EwCA/Eyayb qumbp6vt3G3zfSDLMA8Wa/HDNaWcN0/NDdnhlj9zlT27COyFJJUARa1jGA/5+2BK k/LP7homFIPf8vTGMkL/JuHU7Fsqa2vCFEzB22xyD8GE59dHoXYTlKA2pOr/2lJM VV5h0FDS6lFbkp6AQDHwh5tsGusT7dREFXebBUWtmETZmB9iQZXAo4k+MnUbYGSt stYFdDJpQkK42icF7uhJE1xuZkQ16xBm02pBvlJWMSyYyHCHhUH83VxhA11szA5/ glLHfhhdbAa1BKmFHuTEZiwCAssY+YmoAvUpgLW04csJ4s4+my7VCgVe6jOILv2H 0PdakYam/UEXPoDR4bAdJePZQvwbeUQUtmZ/oYb7Ab2ztfFcpVtZ5T0QeKazXkiZ BDtJ+XQJAhZOmLL4u2owGdevvjQU+68QZF1NfMoOTW2K7bcok3pVjj5uKRkfir6F R74mzHNNKOWBO9NwByinrMNJqHqPxfbREvg92Xi7GGDtt+rD7/K3K4Au+9W9MxwL AvUhPGadUZT1 =9xhj -----END PGP SIGNATURE----- Merge tag 'pm-5.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm Pull power management updates from Rafael Wysocki: "These add a new power capping facility allowing aggregate power constraints to be applied to sets of devices in a distributed manner, add a new CPU ID to the RAPL power capping driver and improve it, drop a cpufreq driver belonging to a platform that is not supported any more, drop two redundant cpufreq driver flags, update cpufreq drivers (intel_pstate, brcmstb-avs, qcom-hw), update the operating performance points (OPP) framework (code cleanups, new helpers, devfreq-related modifications), clean up devfreq, extend the PM clock layer, update the cpupower utility and make assorted janitorial changes. Specifics: - Add new power capping facility called DTPM (Dynamic Thermal Power Management), based on the existing power capping framework, to allow aggregate power constraints to be applied to sets of devices in a distributed manner, along with a CPU backend driver based on the Energy Model (Daniel Lezcano, Dan Carpenter, Colin Ian King). - Add AlderLake Mobile support to the Intel RAPL power capping driver and make it use the topology interface when laying out the system topology (Zhang Rui, Yunfeng Ye). - Drop the cpufreq tango driver belonging to a platform that is not supported any more (Arnd Bergmann). - Drop the redundant CPUFREQ_STICKY and CPUFREQ_PM_NO_WARN cpufreq driver flags (Viresh Kumar). - Update cpufreq drivers: * Fix max CPU frequency discovery in the intel_pstate driver and make janitorial changes in it (Chen Yu, Rafael Wysocki, Nigel Christian). * Fix resource leaks in the brcmstb-avs-cpufreq driver (Christophe JAILLET). * Make the tegra20 driver use the resource-managed API (Dmitry Osipenko). * Enable boost support in the qcom-hw driver (Shawn Guo). - Update the operating performance points (OPP) framework: * Clean up the OPP core (Dmitry Osipenko, Viresh Kumar). * Extend the OPP API by adding new helpers to it (Dmitry Osipenko, Viresh Kumar). * Allow required OPPs to be used for devfreq devices and update the devfreq governor code accordingly (Saravana Kannan). * Prepare the framework for introducing new dev_pm_opp_set_opp() helper (Viresh Kumar). * Drop dev_pm_opp_set_bw() and update related drivers (Viresh Kumar). * Allow lazy linking of required-OPPs (Viresh Kumar). - Simplify and clean up devfreq somewhat (Lukasz Luba, Yang Li, Pierre Kuo). - Update the generic power domains (genpd) framework: * Use device's next wakeup to determine domain idle state (Lina Iyer). * Improve initialization and debug (Dmitry Osipenko). * Simplify computations (Abaci Team). - Make janitorial changes in the core code handling system sleep and PM-runtime (Bhaskar Chowdhury, Bjorn Helgaas, Rikard Falkeborn, Zqiang). - Update the MAINTAINERS entry for the exynos cpuidle driver and drop DEBUG definition from intel_idle (Krzysztof Kozlowski, Tom Rix). - Extend the PM clock layer to cover clocks that must sleep (Nicolas Pitre). - Update the cpupower utility: * Update cpupower command, add support for AMD family 0x19 and clean up the code to remove many of the family checks to make future family updates easier (Nathan Fontenot, Robert Richter). * Add Makefile dependencies for install targets to allow building cpupower in parallel rather than serially (Ivan Babrou). - Make janitorial changes in power management Kconfig (Lukasz Luba)" * tag 'pm-5.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (89 commits) MAINTAINERS: cpuidle: exynos: include header in file pattern powercap: intel_rapl: Use topology interface in rapl_init_domains() powercap: intel_rapl: Use topology interface in rapl_add_package() PM: sleep: Constify static struct attribute_group PM: Kconfig: remove unneeded "default n" options PM: EM: update Kconfig description and drop "default n" option cpufreq: Remove unused flag CPUFREQ_PM_NO_WARN cpufreq: Remove CPUFREQ_STICKY flag PM / devfreq: Add required OPPs support to passive governor PM / devfreq: Cache OPP table reference in devfreq OPP: Add function to look up required OPP's for a given OPP PM / devfreq: rk3399_dmc: Remove unneeded semicolon opp: Replace ENOTSUPP with EOPNOTSUPP opp: Fix "foo * bar" should be "foo *bar" opp: Don't ignore clk_get() errors other than -ENOENT opp: Update bandwidth requirements based on scaling up/down opp: Allow lazy-linking of required-opps opp: Remove dev_pm_opp_set_bw() devfreq: tegra30: Migrate to dev_pm_opp_set_opp() drm: msm: Migrate to dev_pm_opp_set_opp() ... |
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Linus Torvalds | 0570b69305 |
Assign a dedicated feature word to a CPUID leaf which is widely used.
-----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEzv7L6UO9uDPlPSfHEsHwGGHeVUoFAmAqYMkACgkQEsHwGGHe VUoK8Q//SzA9l3eUb8y3V0bezrwFysR0K9bgsKaSHNvbPiJQpFmQsLgysnqF5+Fp jqJyq8aCYa4JfOwuJZhIrtMiIPFMUw4iNafgj6arLs0V1sdQCmSMwWj5ODnVQ0gn H5LwYwCzLtXuiA7Ka6wSaw/FJWRF/e+G4ZVgENpz+JSZ5KlsmCh8rckMNmmdelM/ nq9ilJmua+gW96lT7ompurcpWZeSaMVlBgLmslXU4wh/O6ZegkkP3e0RNgTPq1ge kvHzqAEMt58CsY2aMuwkMjpoSNDesdF0Z8VahQ40XY5tBw5w+EjZ9cF3stXwDBfN 0zSMd7mZtI/mzG0EQkrqxEqQJIH5pvKk0dG18aV/QTjX27OJbvu9B2+0HpIxlMCB 1OUAk6nnOXp+zoH4bEQeHURJrymFUyRhwDpxZ8uGvZjaWjfQdDt6fhi6hqmeXOs8 iab3x+9+QM0x7TOtzCv7kqV18kKftX9A7Nl14v0EcpO6nNtbh+ac1zcad+rmTCAg gGBBP60ESH9VK1TWTEX94YW67M96El2OeEIEUihD7pxO0J5GQZL8ZUBXsJXl7oIn 95+BUKnczJUj4CAG1dHRx3lko1OcfxOikOGjFv4TALF+tb/S0Rvn0cE+AGY1DWA6 1b9zdFFYsLyUXO2C29IL3tlCKrcQdf8OzI+S4ehw1gGYxA7x8QA= =XADP -----END PGP SIGNATURE----- Merge tag 'x86_cpu_for_v5.12' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 CPUID cleanup from Borislav Petkov: "Assign a dedicated feature word to a CPUID leaf which is widely used" * tag 'x86_cpu_for_v5.12' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/cpufeatures: Assign dedicated feature word for CPUID_0x8000001F[EAX] |
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Linus Torvalds | 317d4f4593 |
- Complete the MSR write filtering by applying it to the MSR ioctl
interface too. - Other misc small fixups. -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEzv7L6UO9uDPlPSfHEsHwGGHeVUoFAmAqXSoACgkQEsHwGGHe VUq9Hw//fnO5VfcQ7f2nBOpy+1sXLV6iuA4F0tR7MlI4kTLH5ULYYEn0SsQn8/OP nx9o6UANQH2NL9IRsN1B/ME3PTF32kMuauXTfFYhO7Zp0cRPXuE/Ew6sv7wfBYXo Cf/XHt8jn7RPm/NcMEYXiMKpE1fUiBIkcMjmDHPHJOe6SaE5MUeA85c2BIBdPQ0S 0g5SlzYZWuxXoUOC3aDi4PMQJqO+tFUYVRP0Zz70XEqbZx9KHLD7U4VhCoYYW4ey FDqo33TAJeOBLMg8jLnPt5v3tXUPf7Rfx5hpxlk8dpiMhcZGbP8BeIj2BLrdufS/ ScuvrMaBqHRyKdOjE6aLhtsZmnoTt/ofOvpyFuoDkvkNgQFk+AiYNXVSZCBPAeEH kTPfHk6s4BsVMZaqV2giAAzWoJxTi/5z0c3ut/OEN894piKpIeXq+FpFdOatRD41 9L2M16vHVvd6WT8RKWeXINpzWp3yOT3VB8Su4+qr3dypugWNlQDHEDH1DWY5xCWS 6MHhvs80JgLBV5RZ9sXxsWQjqQqbZjUEoVQtyyXfuEEP3Y4r+CR1Oks00OO8KXon frRrkZluYUZwCUCYXdNjlP+WINefZrQ9TCVihvYsaRp9jCGIDZHyd7liH4VhKUNG GxTepHmSBB4Pix7YlPVFZSbsPzAAKuHMpSBmasHBAhS3FN6YVMU= =TbqQ -----END PGP SIGNATURE----- Merge tag 'x86_misc_for_v5.12' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 misc updates from Borislav Petkov: - Complete the MSR write filtering by applying it to the MSR ioctl interface too. - Other misc small fixups. * tag 'x86_misc_for_v5.12' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/MSR: Filter MSR writes through X86_IOC_WRMSR_REGS ioctl too selftests/fpu: Fix debugfs_simple_attr.cocci warning selftests/x86: Use __builtin_ia32_read/writeeflags x86/reboot: Add Zotac ZBOX CI327 nano PCI reboot quirk |
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Nicholas Fraser | 3027ce36cc |
perf buildid-cache: Don't skip 16-byte build-ids
lsdir_bid_tail_filter() ignored any build-id that wasn't exactly 20 bytes. This worked only for SHA-1 build-ids. The build-id for a PE file is always a 16-byte GUID and ELF files can also have MD5 or UUID build-ids. This fix changes the filter to allow build-ids between 16 and 20 bytes. Signed-off-by: Nicholas Fraser <nfraser@codeweavers.com> Acked-by: Jiri Olsa <jolsa@redhat.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Frank Ch. Eigler <fche@redhat.com> Cc: Huw Davies <huw@codeweavers.com> Cc: Ian Rogers <irogers@google.com> Cc: Kim Phillips <kim.phillips@amd.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Remi Bernon <rbernon@codeweavers.com> Cc: Song Liu <songliubraving@fb.com> Cc: Tommi Rantala <tommi.t.rantala@nokia.com> Cc: Ulrich Czekalla <uczekalla@codeweavers.com> Link: http://lore.kernel.org/lkml/597788e4-661d-633f-857c-3de700115d02@codeweavers.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> |
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Nicholas Fraser | 206236d328 |
perf buildid-cache: Add test for 16-byte build-id
tests/shell/buildid.sh added an ELF executable with an MD5 build-id to the perf debug cache but did not check whether the object was printed by a subsequent call to "perf buildid-cache -l". It was being omitted from the list. A previous commit fixed the bug that left it out of the list. This adds a test for it. Signed-off-by: Nicholas Fraser <nfraser@codeweavers.com> Acked-by: Jiri Olsa <jolsa@redhat.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Arnaldo Carvalho de Melo <acme@kernel.org> Cc: Frank Ch. Eigler <fche@redhat.com> Cc: Huw Davies <huw@codeweavers.com> Cc: Ian Rogers <irogers@google.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Kim Phillips <kim.phillips@amd.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Remi Bernon <rbernon@codeweavers.com> Cc: Song Liu <songliubraving@fb.com> Cc: Tommi Rantala <tommi.t.rantala@nokia.com> Cc: Ulrich Czekalla <uczekalla@codeweavers.com> Link: https://lore.kernel.org/r/c08be235-7434-5208-5f21-e8c9a3265464@codeweavers.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> |
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Nicholas Fraser | bff8b3072e |
perf symbol: Remove redundant libbfd checks
This removes the redundant checks bfd_check_format() and bfd_target_elf_flavour. They were previously checking different files. Signed-off-by: Nicholas Fraser <nfraser@codeweavers.com> Acked-by: Jiri Olsa <jolsa@redhat.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Arnaldo Carvalho de Melo <acme@kernel.org> Cc: Frank Ch. Eigler <fche@redhat.com> Cc: Huw Davies <huw@codeweavers.com> Cc: Ian Rogers <irogers@google.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Kim Phillips <kim.phillips@amd.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Remi Bernon <rbernon@codeweavers.com> Cc: Song Liu <songliubraving@fb.com> Cc: Tommi Rantala <tommi.t.rantala@nokia.com> Cc: Ulrich Czekalla <uczekalla@codeweavers.com> Link: https://lore.kernel.org/r/94758ca1-0031-d7c6-6c6a-900fd77ef695@codeweavers.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> |
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Leo Yan | 11d45d4fb9 |
perf test: Output the sub testing result in cs-etm
The CoreSight testing contains sub cases, e.g. every CPU iterates the possible conntected sinks and tests the paths between the associated ETM with the found sink. Besides the per-thread testing, it also contains system wide testing and snapshot testing. To easier observe results for the sub cases, this patch introduces a new function arm_cs_report(), it outputs the result as "PASS" or "FAIL" for every sub case; and it records the error in the variable "glb_err" which is used as the final return value when exits the testing. Before: # perf test 73 -v 73: Check Arm CoreSight trace data recording and synthesized samples: --- start --- test child forked, pid 17423 Recording trace (only user mode) with path: CPU0 => tmc_etf0 Looking at perf.data file for dumping branch samples: Looking at perf.data file for reporting branch samples: Looking at perf.data file for instruction samples: Recording trace (only user mode) with path: CPU0 => tmc_etr0 Looking at perf.data file for dumping branch samples: Looking at perf.data file for reporting branch samples: Looking at perf.data file for instruction samples: [...] After: # perf test 73 -v 73: Check Arm CoreSight trace data recording and synthesized samples: --- start --- test child forked, pid 17423 Recording trace (only user mode) with path: CPU0 => tmc_etf0 Looking at perf.data file for dumping branch samples: Looking at perf.data file for reporting branch samples: Looking at perf.data file for instruction samples: CoreSight path testing (CPU0 -> tmc_etf0): PASS Recording trace (only user mode) with path: CPU0 => tmc_etr0 Looking at perf.data file for dumping branch samples: Looking at perf.data file for reporting branch samples: Looking at perf.data file for instruction samples: CoreSight path testing (CPU0 -> tmc_etr0): PASS [...] Signed-off-by: Leo Yan <leo.yan@linaro.org> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Basil Eljuse <basil.eljuse@arm.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Mathieu Poirier <mathieu.poirier@linaro.org> Cc: Mike Leach <mike.leach@linaro.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Naresh Kamboju <naresh.kamboju@linaro.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Suzuki Poulouse <suzuki.poulose@arm.com> Cc: Viresh Kumar <viresh.kumar@linaro.org> Link: http://lore.kernel.org/lkml/20210215115944.535986-3-leo.yan@linaro.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> |
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Leo Yan | 46355e3d79 |
perf test: Suppress logs in cs-etm testing
With the option '-v' for the verbose logs, "perf test" outputs tons of logs for the CoreSight case, the logs are mainly introduced by the decoding. And it outputs some trivial info from "perf record" command and there have debugging info for CPU number and device name when iterates between ETMs and sinks. For a neat output format, this patch redirects the output logs to "/dev/null", thus can avoid to flood logs. And it removes the redundant log for CPU number and device name, which have already printed out the relevant info in the function record_touch_file(). Signed-off-by: Leo Yan <leo.yan@linaro.org> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Basil Eljuse <basil.eljuse@arm.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Mathieu Poirier <mathieu.poirier@linaro.org> Cc: Mike Leach <mike.leach@linaro.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Naresh Kamboju <naresh.kamboju@linaro.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Suzuki Poulouse <suzuki.poulose@arm.com> Cc: Viresh Kumar <viresh.kumar@linaro.org> Link: http://lore.kernel.org/lkml/20210215115944.535986-2-leo.yan@linaro.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> |
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Jianlin Lv | 067012974c |
perf tools: Fix arm64 build error with gcc-11
gcc version: 11.0.0 20210208 (experimental) (GCC) Following build error on arm64: ....... In function ‘printf’, inlined from ‘regs_dump__printf’ at util/session.c:1141:3, inlined from ‘regs__printf’ at util/session.c:1169:2: /usr/include/aarch64-linux-gnu/bits/stdio2.h:107:10: \ error: ‘%-5s’ directive argument is null [-Werror=format-overflow=] 107 | return __printf_chk (__USE_FORTIFY_LEVEL - 1, __fmt, \ __va_arg_pack ()); ...... In function ‘fprintf’, inlined from ‘perf_sample__fprintf_regs.isra’ at \ builtin-script.c:622:14: /usr/include/aarch64-linux-gnu/bits/stdio2.h💯10: \ error: ‘%5s’ directive argument is null [-Werror=format-overflow=] 100 | return __fprintf_chk (__stream, __USE_FORTIFY_LEVEL - 1, __fmt, 101 | __va_arg_pack ()); cc1: all warnings being treated as errors ....... This patch fixes Wformat-overflow warnings. Add helper function to convert NULL to "unknown". Signed-off-by: Jianlin Lv <Jianlin.Lv@arm.com> Reviewed-by: John Garry <john.garry@huawei.com> Acked-by: Jiri Olsa <jolsa@redhat.com> Cc: Albert Ou <aou@eecs.berkeley.edu> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Anju T Sudhakar <anju@linux.vnet.ibm.com> Cc: Athira Jajeev <atrajeev@linux.vnet.ibm.com> Cc: Guo Ren <guoren@kernel.org> Cc: Kajol Jain <kjain@linux.ibm.com> Cc: Leo Yan <leo.yan@linaro.org> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Mathieu Poirier <mathieu.poirier@linaro.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Walmsley <paul.walmsley@sifive.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Ravi Bangoria <ravi.bangoria@linux.ibm.com> Cc: Will Deacon <will@kernel.org> Cc: Palmer Dabbelt <palmer@dabbelt.com> Cc: iecedge@gmail.com Cc: linux-csky@vger.kernel.org Cc: linux-riscv@lists.infradead.org Link: http://lore.kernel.org/lkml/20210218031245.2078492-1-Jianlin.Lv@arm.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> |
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Adrian Hunter | 865eb3fb3b |
perf intel-pt: Add documentation for tracing virtual machines
Add documentation to the perf-intel-pt man page for tracing virtual machines. Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Acked-by: Andi Kleen <ak@linux.intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Jiri Olsa <jolsa@redhat.com> Link: https://lore.kernel.org/r/20210218095801.19576-12-adrian.hunter@intel.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> |
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Adrian Hunter | 19854e45b3 |
perf intel-pt: Split VM-Entry and VM-Exit branches
Events record a single cpumode so the tools cannot handle a branch from the host machine to a virtual machine, or vice versa. Split it in two so that each branch can have a different cpumode. E.g. host ip -> guest ip becomes: host ip -> 0 0 -> guest ip Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Acked-by: Andi Kleen <ak@linux.intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Jiri Olsa <jolsa@redhat.com> Link: https://lore.kernel.org/r/20210218095801.19576-11-adrian.hunter@intel.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> |
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Adrian Hunter | 695fc45106 |
perf intel-pt: Adjust sample flags for VM-Exit
Use the change of NR to detect whether an asynchronous branch is a VM-Exit. Note VM-Entry is determined from the vmlaunch or vmresume instruction, in which case, sample flags will show "VMentry" even if the VM-Entry fails. Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Acked-by: Andi Kleen <ak@linux.intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Jiri Olsa <jolsa@redhat.com> Link: https://lore.kernel.org/r/20210218095801.19576-10-adrian.hunter@intel.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> |