/proc/xen/xenbus does not work correctly. A read blocked waiting for
a xenstore message holds the mutex needed for atomic file position
updates. This blocks any writes on the same file handle, which can
deadlock if the write is needed to unblock the read.
Clear FMODE_ATOMIC_POS when opening this device to always get
character device like sematics.
Signed-off-by: David Vrabel <david.vrabel@citrix.com>
Reviewed-by: Juergen Gross <jgross@suse.com>
Signed-off-by: Juergen Gross <jgross@suse.com>
Instead of requesting a new slot on the ring to the backend early, do
so only after all has been setup for the request to be sent. This
makes error handling easier as we don't need to undo the request id
allocation and ring slot allocation.
Suggested-by: Jan Beulich <jbeulich@suse.com>
Signed-off-by: Juergen Gross <jgross@suse.com>
Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Signed-off-by: Juergen Gross <jgross@suse.com>
On systems with sufficiently large e820 tables, and several IOAPICs, it
is possible for the XENMEM_machine_memory_map callback (and its
counterpart, XENMEM_memory_map) to attempt to return an e820 table with
more than 128 entries. This callback adds entries to the BIOS-provided
e820 table to account for IOAPIC registers, which, on sufficiently large
systems, can result in an e820 table that is too large to copy back into
xen_e820_map.
This change simply increases the size of xen_e820_map to E820_X_MAX to
ensure that there is enough room to store the entire e820 map returned
from this callback.
Signed-off-by: Alex Thorlton <athorlton@sgi.com>
Suggested-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Reviewed-by: Juergen Gross <jgross@suse.com>
Acked-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Juergen Gross <jgross@suse.com>
It's really not necessary to limit E820_X_MAX to 128 in the non-EFI
case. This commit drops E820_X_MAX's dependency on CONFIG_EFI, so that
E820_X_MAX is always at least slightly larger than E820MAX.
The real motivation behind this is actually to prevent some issues in
the Xen kernel, where the XENMEM_machine_memory_map hypercall can
produce an e820 map larger than 128 entries, even on systems where the
original e820 table was quite a bit smaller than that, depending on how
many IOAPICs are installed on the system.
Signed-off-by: Alex Thorlton <athorlton@sgi.com>
Suggested-by: Ingo Molnar <mingo@redhat.com>
Acked-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Juergen Gross <jgross@suse.com>
The function is never called under PV guests, and only shows up
when MSI (or MSI-X) cannot be allocated. Convert the message
to include the error value.
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Reviewed-by: Juergen Gross <jgross@suse.com>
Signed-off-by: Juergen Gross <jgross@suse.com>
Variable err is initialized with 0. As a result, the return value may
be 0 even if get_zeroed_page() fails to allocate memory. This patch fixes
the bug, initializing err with "-ENOMEM".
Signed-off-by: Pan Bian <bianpan2016@163.com>
Reviewed-by: Juergen Gross <jgross@suse.com>
Signed-off-by: Juergen Gross <jgross@suse.com>
Variable rc is reset in the loop, and its value will be non-negative
during the second and after repeat of the loop. If it fails to allocate
memory then, it may return a non-negative integer, which indicates no
error. This patch fixes the bug, assigning "-ENOMEM" to rc when
kzalloc() or alloc_page() returns NULL, and removing the initialization
of rc outside of the loop.
Signed-off-by: Pan Bian <bianpan2016@163.com>
Reviewed-by: Juergen Gross <jgross@suse.com>
Signed-off-by: Juergen Gross <jgross@suse.com>
ARM and arm64 Xen ports share a number of headers, leading to
packaging issues when these headers needs to be exported, as it
breaks the reasonable requirement that an architecture port
has self-contained headers.
Fix the issue by moving the 5 header files to include/xen/arm,
and keep local placeholders to include the relevant files.
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Reviewed-by: Stefano Stabellini <sstabellini@kernel.org>
EVTCHNOP_status hypercall returns Xen's idea of vcpu id so we need to
compare it against xen_vcpu_id mapping, not the Linux cpu id.
Suggested-by: Radim Krcmar <rkrcmar@redhat.com>
Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Signed-off-by: Juergen Gross <jgross@suse.com>
Commit 9c17d96500 ("xen/gntdev: Grant maps should not be subject to
NUMA balancing") set VM_IO flag to prevent grant maps from being
subjected to NUMA balancing.
It was discovered recently that this flag causes get_user_pages() to
always fail with -EFAULT.
check_vma_flags
__get_user_pages
__get_user_pages_locked
__get_user_pages_unlocked
get_user_pages_fast
iov_iter_get_pages
dio_refill_pages
do_direct_IO
do_blockdev_direct_IO
do_blockdev_direct_IO
ext4_direct_IO_read
generic_file_read_iter
aio_run_iocb
(which can happen if guest's vdisk has direct-io-safe option).
To avoid this let's use VM_MIXEDMAP flag instead --- it prevents
NUMA balancing just as VM_IO does and has no effect on
check_vma_flags().
Cc: stable@vger.kernel.org
Reported-by: Olaf Hering <olaf@aepfle.de>
Suggested-by: Hugh Dickins <hughd@google.com>
Signed-off-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Acked-by: Hugh Dickins <hughd@google.com>
Tested-by: Olaf Hering <olaf@aepfle.de>
Signed-off-by: Juergen Gross <jgross@suse.com>
Most error branches following the call to kmalloc contain
a call to kfree. This patch add these calls where they are
missing.
This issue was found with Hector.
Signed-off-by: Quentin Lambert <lambert.quentin@gmail.com>
Reviewed-by: Juergen Gross <jgross@suse.com>
Signed-off-by: Juergen Gross <jgross@suse.com>
I am no longer in a postion to be a maintainer of the Xen subsystem.
Signed-off-by: David Vrabel <david.vrabel@citrix.com>
Acked-by: Juergen Gross <jgross@suse.com>
Acked-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Signed-off-by: Juergen Gross <jgross@suse.com>
Mounting proc in user namespace containers fails if the xenbus
filesystem is mounted on /proc/xen because this directory fails
the "permanently empty" test. proc_create_mount_point() exists
specifically to create such mountpoints in proc but is currently
proc-internal. Export this interface to modules, then use it in
xenbus when creating /proc/xen.
Signed-off-by: Seth Forshee <seth.forshee@canonical.com>
Signed-off-by: David Vrabel <david.vrabel@citrix.com>
Signed-off-by: Juergen Gross <jgross@suse.com>
The connect function prints an unintialized error code after an
earlier initialization was removed:
drivers/net/xen-netback/xenbus.c: In function 'connect':
drivers/net/xen-netback/xenbus.c:938:3: error: 'err' may be used uninitialized in this function [-Werror=maybe-uninitialized]
This prints it as -EINVAL instead, which seems to be the most
appropriate error code. Before the patch that caused the warning,
this would print a positive number returned by vsscanf() instead,
which is also wrong. We probably don't need a backport though,
as fixing the warning here should be sufficient.
Fixes: f95842e7a9 ("xen: make use of xenbus_read_unsigned() in xen-netback")
Fixes: 8d3d53b3e4 ("xen-netback: Add support for multiple queues")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Paul Durrant <paul.durrant@citrix.com>
Signed-off-by: Juergen Gross <jgross@suse.com>
Use xenbus_read_unsigned() instead of xenbus_scanf() when possible.
This requires to change the type of the reads from int to unsigned,
but these cases have been wrong before: negative values are not allowed
for the modified cases.
Signed-off-by: Juergen Gross <jgross@suse.com>
Acked-by: David Vrabel <david.vrabel@citrix.com>
Use xenbus_read_unsigned() instead of xenbus_scanf() when possible.
This requires to change the type of the read from int to unsigned,
but this case has been wrong before: negative values are not allowed
for the modified case.
Signed-off-by: Juergen Gross <jgross@suse.com>
Acked-by: David Vrabel <david.vrabel@citrix.com>
Use xenbus_read_unsigned() instead of xenbus_scanf() when possible.
This requires to change the type of the reads from int to unsigned,
but these cases have been wrong before: negative values are not allowed
for the modified cases.
Cc: tomi.valkeinen@ti.com
Cc: linux-fbdev@vger.kernel.org
Signed-off-by: Juergen Gross <jgross@suse.com>
Acked-by: David Vrabel <david.vrabel@citrix.com>
Use xenbus_read_unsigned() instead of xenbus_scanf() when possible.
Signed-off-by: Juergen Gross <jgross@suse.com>
Acked-by: David Vrabel <david.vrabel@citrix.com>
Use xenbus_read_unsigned() instead of xenbus_scanf() when possible.
This requires to change the type of the read from int to unsigned,
but this case has been wrong before: negative values are not allowed
for the modified case.
Cc: bhelgaas@google.com
Cc: linux-pci@vger.kernel.org
Signed-off-by: Juergen Gross <jgross@suse.com>
Acked-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: David Vrabel <david.vrabel@citrix.com>
Use xenbus_read_unsigned() instead of xenbus_scanf() when possible.
This requires to change the type of some reads from int to unsigned,
but these cases have been wrong before: negative values are not allowed
for the modified cases.
Cc: netdev@vger.kernel.org
Signed-off-by: Juergen Gross <jgross@suse.com>
Acked-by: David Vrabel <david.vrabel@citrix.com>
Use xenbus_read_unsigned() instead of xenbus_scanf() when possible.
This requires to change the type of some reads from int to unsigned,
but these cases have been wrong before: negative values are not allowed
for the modified cases.
Cc: wei.liu2@citrix.com
Cc: paul.durrant@citrix.com
Cc: netdev@vger.kernel.org
Signed-off-by: Juergen Gross <jgross@suse.com>
Reviewed-by: Paul Durrant <paul.durrant@citrix.com>
Acked-by: David Vrabel <david.vrabel@citrix.com>
Use xenbus_read_unsigned() instead of xenbus_scanf() when possible.
This requires to change the type of the reads from int to unsigned,
but these cases have been wrong before: negative values are not allowed
for the modified cases.
Cc: dmitry.torokhov@gmail.com
Cc: linux-input@vger.kernel.org
Signed-off-by: Juergen Gross <jgross@suse.com>
Acked-by: David Vrabel <david.vrabel@citrix.com>
Use xenbus_read_unsigned() instead of xenbus_scanf() when possible.
This requires to change the type of one read from int to unsigned,
but this case has been wrong before: negative values are not allowed
for the modified case.
Cc: peterhuewe@gmx.de
Cc: tpmdd@selhorst.net
Cc: jarkko.sakkinen@linux.intel.com
Cc: jgunthorpe@obsidianresearch.com
Cc: tpmdd-devel@lists.sourceforge.net
Signed-off-by: Juergen Gross <jgross@suse.com>
Reviewed-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
Acked-by: David Vrabel <david.vrabel@citrix.com>
Use xenbus_read_unsigned() instead of xenbus_scanf() when possible.
This requires to change the type of some reads from int to unsigned,
but these cases have been wrong before: negative values are not allowed
for the modified cases.
Cc: konrad.wilk@oracle.com
Cc: roger.pau@citrix.com
Signed-off-by: Juergen Gross <jgross@suse.com>
Acked-by: David Vrabel <david.vrabel@citrix.com>
Use xenbus_read_unsigned() instead of xenbus_scanf() when possible.
This requires to change the type of one read from int to unsigned,
but this case has been wrong before: negative values are not allowed
for the modified case.
Cc: konrad.wilk@oracle.com
Cc: roger.pau@citrix.com
Signed-off-by: Juergen Gross <jgross@suse.com>
Acked-by: David Vrabel <david.vrabel@citrix.com>
There are multiple instances of code reading an optional unsigned
parameter from Xenstore via xenbus_scanf(). Instead of repeating the
same code over and over add a service function doing the job.
Signed-off-by: Juergen Gross <jgross@suse.com>
Reviewed-by: David Vrabel <david.vrabel@citrix.com>
Pull i2c fix from Wolfram Sang:
"A bugfix for the I2C core fixing a (rare) race condition"
* 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
i2c: core: fix NULL pointer dereference under race condition
Pull stack vmap fixups from Thomas Gleixner:
"Two small patches related to sched_show_task():
- make sure to hold a reference on the task stack while accessing it
- remove the thread_saved_pc printout
.. and add a sanity check into release_task_stack() to catch problems
with task stack references"
* 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
sched/core: Remove pointless printout in sched_show_task()
sched/core: Fix oops in sched_show_task()
* 'core-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
fork: Add task stack refcounting sanity check and prevent premature task stack freeing
Pull MD fixes from Shaohua Li:
"There are several bug fixes queued:
- fix raid5-cache recovery bugs
- fix discard IO error handling for raid1/10
- fix array sync writes bogus position to superblock
- fix IO error handling for raid array with external metadata"
* tag 'md/4.9-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/shli/md:
md: be careful not lot leak internal curr_resync value into metadata. -- (all)
raid1: handle read error also in readonly mode
raid5-cache: correct condition for empty metadata write
md: report 'write_pending' state when array in sync
md/raid5: write an empty meta-block when creating log super-block
md/raid5: initialize next_checkpoint field before use
RAID10: ignore discard error
RAID1: ignore discard error
Two more important data integrity fixes related to RAID device drivers which
wrongly throw away the SYNCHRONIZE CACHE command in the non-RAID path and a
memory leak in the scsi_debug driver
Signed-off-by: James E.J. Bottomley <jejb@linux.vnet.ibm.com>
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v2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=xrlP
-----END PGP SIGNATURE-----
Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Pull SCSI fixes from James Bottomley:
"Two more important data integrity fixes related to RAID device drivers
which wrongly throw away the SYNCHRONIZE CACHE command in the non-RAID
path and a memory leak in the scsi_debug driver"
* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
scsi: arcmsr: Send SYNCHRONIZE_CACHE command to firmware
scsi: scsi_debug: Fix memory leak if LBP enabled and module is unloaded
scsi: megaraid_sas: Fix data integrity failure for JBOD (passthrough) devices
- Add missing input validation to the firewire-net driver.
Invalid IP-over-1394 encapsulation headers could trigger
buffer overflows (CVE 2016-8633).
- IP-over-1394 link fragmentation headers were read and written
incorrectly, breaking fragmented RX/TX with other OS's stacks.
-----BEGIN PGP SIGNATURE-----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=PxAL
-----END PGP SIGNATURE-----
Merge tag 'firewire-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394
Pull FireWire (IEEE 1394) fixes from Stefan Richter:
- add missing input validation to the firewire-net driver. Invalid
IP-over-1394 encapsulation headers could trigger buffer overflows
(CVE 2016-8633).
- IP-over-1394 link fragmentation headers were read and written
incorrectly, breaking fragmented RX/TX with other OS's stacks.
* tag 'firewire-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394:
firewire: net: fix fragmented datagram_size off-by-one
firewire: net: guard against rx buffer overflows
-----BEGIN PGP SIGNATURE-----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=MRLH
-----END PGP SIGNATURE-----
Merge tag 'media/v4.9-3' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media
Pull media fixes from Mauro Carvalho Chehab:
"A series of fixup patches meant to fix the usage of DMA on stack, plus
one warning fixup"
* tag 'media/v4.9-3' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (32 commits)
[media] radio-bcm2048: don't ignore errors
[media] pctv452e: fix semicolon.cocci warnings
[media] flexcop-usb: don't use stack for DMA
[media] stk-webcam: don't use stack for DMA
[media] s2255drv: don't use stack for DMA
[media] cpia2_usb: don't use stack for DMA
[media] digitv: handle error code on RC query
[media] dw2102: return error if su3000_power_ctrl() fails
[media] nova-t-usb2: handle error code on RC query
[media] technisat-usb2: use DMA buffers for I2C transfers
[media] pctv452e: don't call BUG_ON() on non-fatal error
[media] pctv452e: don't do DMA on stack
[media] nova-t-usb2: don't do DMA on stack
[media] gp8psk: don't go past the buffer size
[media] gp8psk: don't do DMA on stack
[media] dtv5100: don't do DMA on stack
[media] dtt200u: handle USB control message errors
[media] dtt200u: don't do DMA on stack
[media] dtt200u-fe: handle errors on USB control messages
[media] dtt200u-fe: don't do DMA on stack
...
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1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=n738
-----END PGP SIGNATURE-----
Merge tag 'pci-v4.9-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci
Pull PCI fixes from Bjorn Helgaas:
- fix for a Qualcomm driver issue that causes a use-before-set crash
- fix for DesignWare iATU unroll support that causes external aborts
when enabling the host bridge
* tag 'pci-v4.9-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci:
PCI: designware: Check for iATU unroll support after initializing host
PCI: qcom: Fix pp->dev usage before assignment
* MAINTAINERS updates to reflect some new maintainers/submaintainers -- we
have some great volunteers who've been developing and reviewing already.
We're going to try a group maintainership model, so eventually you'll
probably see pull requests from people besides me.
* NAND fixes from Boris:
"""
Three simple fixes:
- the first one is fixing a non-critical bug in the gpmi driver
- the second one is fixing a bug in the 'automatic NAND timings
selection' feature introduced in 4.9-rc1
- the last one is fixing a false positive uninitialized-var warning
"""
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1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=7VFh
-----END PGP SIGNATURE-----
Merge tag 'for-linus-20161104' of git://git.infradead.org/linux-mtd
Pull MTD fixes from Brian Norris:
- MAINTAINERS updates to reflect some new maintainers/submaintainers.
We have some great volunteers who've been developing and reviewing
already. We're going to try a group maintainership model, so
eventually you'll probably see pull requests from people besides me.
- NAND fixes from Boris:
"Three simple fixes:
- fix a non-critical bug in the gpmi driver
- fix a bug in the 'automatic NAND timings selection' feature
introduced in 4.9-rc1
- fix a false positive uninitialized-var warning"
* tag 'for-linus-20161104' of git://git.infradead.org/linux-mtd:
mtd: mtk: avoid warning in mtk_ecc_encode
mtd: nand: Fix data interface configuration logic
mtd: nand: gpmi: disable the clocks on errors
MAINTAINERS: add more people to the MTD maintainer team
MAINTAINERS: add a maintainer for the SPI NOR subsystem
- Fix a nasty file descriptor leak when getting line handles.
- A fix for a cleanup that seemed innocent but created a problem
for drivers instantiating several gpiochips for one single
OF node.
- Fix a unpredictable problem using irq_domain_simple() in the
mvebu driver by converting it to a lineas irqdomain.
-----BEGIN PGP SIGNATURE-----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=QmJl
-----END PGP SIGNATURE-----
Merge tag 'gpio-v4.9-3' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio
Pull GPIO fixes from Linus Walleij:
"Some GPIO fixes for the v4.9 series:
- Fix a nasty file descriptor leak when getting line handles.
- A fix for a cleanup that seemed innocent but created a problem for
drivers instantiating several gpiochips for one single OF node.
- Fix a unpredictable problem using irq_domain_simple() in the mvebu
driver by converting it to a lineas irqdomain"
* tag 'gpio-v4.9-3' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio:
gpio/mvebu: Use irq_domain_add_linear
gpio: of: fix GPIO drivers with multiple gpio_chip for a single node
gpio: GPIO_GET_LINE{HANDLE,EVENT}_IOCTL: Fix file descriptor leak
stack change (after which we can no longer encrypt stuff on the stack).
-----BEGIN PGP SIGNATURE-----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=oPbZ
-----END PGP SIGNATURE-----
Merge tag 'nfsd-4.9-1' of git://linux-nfs.org/~bfields/linux
Pull nfsd bugfixes from Bruce Fields:
"Fixes for some recent regressions including fallout from the vmalloc'd
stack change (after which we can no longer encrypt stuff on the
stack)"
* tag 'nfsd-4.9-1' of git://linux-nfs.org/~bfields/linux:
nfsd: Fix general protection fault in release_lock_stateid()
svcrdma: backchannel cannot share a page for send and rcv buffers
sunrpc: fix some missing rq_rbuffer assignments
sunrpc: don't pass on-stack memory to sg_set_buf
nfsd: move blocked lock handling under a dedicated spinlock
Pull btrfs fixes from Chris Mason:
"Some fixes that Dave Sterba collected. We held off on these last week
because I was focused on the memory corruption testing"
* 'for-4.9-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux:
btrfs: fix WARNING in btrfs_select_ref_head()
Btrfs: remove some no-op casts
btrfs: pass correct args to btrfs_async_run_delayed_refs()
btrfs: make file clone aware of fatal signals
btrfs: qgroup: Prevent qgroup->reserved from going subzero
Btrfs: kill BUG_ON in do_relocation
Pull overlayfs fixes from Miklos Szeredi:
"Fix two more POSIX ACL bugs introduced in 4.8 and add a missing fsync
during copy up to prevent possible data loss"
* 'overlayfs-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/vfs:
ovl: fsync after copy-up
ovl: fix get_acl() on tmpfs
ovl: update S_ISGID when setting posix ACLs
-----BEGIN PGP SIGNATURE-----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=PI1l
-----END PGP SIGNATURE-----
Merge tag 'drm-fixes-for-v4.9-rc4' of git://people.freedesktop.org/~airlied/linux
Pull drm fixes from Dave Airlie:
"Fixes for amdgpu, radeon, intel, imx and virtio-gpu.
This is a bit larger than I'd like, but I had some stuff I meant to
send for -rc3 but was waiting for the PAT regression fix to land. So
this is really fixes for rc3 and rc4 in one go.
There are a set of fixes for an oops we've been seeing around MST
display unplug, along with more suspend/resume and shutdown fixes for
amdgpu, one power management follow on fix for nouveau, and set of imx
fixes, and a single virtio-gpu regression fix"
* tag 'drm-fixes-for-v4.9-rc4' of git://people.freedesktop.org/~airlied/linux: (54 commits)
virtio-gpu: fix vblank events
drm/nouveau/acpi: fix check for power resources support
drm/i915: Fix SKL+ 90/270 degree rotated plane coordinate computation
drm/i915: Remove two invalid warns
drm/i915: Rotated view does not need a fence
drm/i915/fbc: fix CFB size calculation for gen8+
drm: i915: Wait for fences on new fb, not old
drm/i915: Clean up DDI DDC/AUX CH sanitation
drm/i915: Respect alternate_aux_channel for all DDI ports
drm/i915/gen9: fix watermarks when using the pipe scaler
drm/i915: Fix mismatched INIT power domain disabling during suspend
drm/i915: fix a read size argument
drm/i915: Use fence_write() from rpm resume
drm/i915/gen9: fix DDB partitioning for multi-screen cases
drm/i915: workaround sparse warning on variable length arrays
drm/i915: keep declarations in i915_drv.h
drm/amd/powerplay: fix bug get wrong evv voltage of Polaris.
drm/amdgpu/si_dpm: workaround for SI kickers
drm/radeon/si_dpm: workaround for SI kickers
drm/amdgpu: fix s3 resume back, uvd dpm randomly can't disable.
...
dw_pcie_iatu_unroll_enabled() reads a dbi_base register. Reading any
dbi_base register before pp->ops->host_init has been called causes
"imprecise external abort" on platforms like ARTPEC-6, where the PCIe
module is disabled at boot and first enabled in pp->ops->host_init. Move
dw_pcie_iatu_unroll_enabled() to dw_pcie_setup_rc(), since it is after
pp->ops->host_init, but before pp->iatu_unroll_enabled is actually used.
Fixes: a0601a4705 ("PCI: designware: Add iATU Unroll feature")
Tested-by: James Le Cuirot <chewi@gentoo.org>
Signed-off-by: Niklas Cassel <niklas.cassel@axis.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Joao Pinto <jpinto@synopsys.com>
Acked-by: Olof Johansson <olof@lixom.net>
during the merge window. The rest are fixes for MIPS, s390 and nested VMX.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v2.0.22 (GNU/Linux)
iQEcBAABAgAGBQJYG2H5AAoJEL/70l94x66DK/cH/0jEQ3ynuLAd5CKux7JxI/EP
msSJh1Xqr4+XhXZnuDpGQWrdsBlxoiqA6PsJrUTtyi4nQCDXlT8g+2MDuvqhWIHz
7vw58j/EMJDCVQzYAbN5VDUfk13uB5aSWTo3M9Rf09v0hU1Ql7z8u4CtKEdLpN5Y
LY9bT9fxUmXO7REKP7bdW6ZrDX/hUShYHgMqzXGFMyGBG3ym3a9bggXEzTCD6eNQ
ioogQIWqg+icdhta0iLNAwFClPlcKB2/xo4IUuNgrPwGoHFGJN/8+qxT4+sVbp2B
v8u1zOXlCFXBcskWE+yRRsGe72+mIzz6QScCyO+5HbhKYVfbE9H7KBlFX9rZZ2c=
=IbKx
-----END PGP SIGNATURE-----
Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm
Pull KVM updates from Paolo Bonzini:
"One NULL pointer dereference, and two fixes for regressions introduced
during the merge window.
The rest are fixes for MIPS, s390 and nested VMX"
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
kvm: x86: Check memopp before dereference (CVE-2016-8630)
kvm: nVMX: VMCLEAR an active shadow VMCS after last use
KVM: x86: drop TSC offsetting kvm_x86_ops to fix KVM_GET/SET_CLOCK
KVM: x86: fix wbinvd_dirty_mask use-after-free
kvm/x86: Show WRMSR data is in hex
kvm: nVMX: Fix kernel panics induced by illegal INVEPT/INVVPID types
KVM: document lock orders
KVM: fix OOPS on flush_work
KVM: s390: Fix STHYI buffer alignment for diag224
KVM: MIPS: Precalculate MMIO load resume PC
KVM: MIPS: Make ERET handle ERL before EXL
KVM: MIPS: Fix lazy user ASID regenerate for SMP
Pull MIPS fixes from Ralf Baechle:
"A set of MIPS fixes for 4.9:
- lots of fixes for printk continuations
- six fixes for FP related code.
- fix max_low_pfn with disabled highmem
- fix KASLR handling of NULL FDT and KASLR for generic kernels
- fix build of compressed image
- provide default mips_cpc_default_phys_base to ignore CPC
- fix reboot on Malta"
* 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus:
MIPS: Fix max_low_pfn with disabled highmem
MIPS: Correct MIPS I FP sigcontext layout
MIPS: Fix ISA I/II FP signal context offsets
MIPS: Remove FIR from ISA I FP signal context
MIPS: Fix ISA I FP sigcontext access violation handling
MIPS: Fix FCSR Cause bit handling for correct SIGFPE issue
MIPS: ptrace: Also initialize the FP context on individual FCSR writes
MIPS: dump_tlb: Fix printk continuations
MIPS: Fix __show_regs() output
MIPS: traps: Fix output of show_code
MIPS: traps: Fix output of show_stacktrace
MIPS: traps: Fix output of show_backtrace
MIPS: Fix build of compressed image
MIPS: generic: Fix KASLR for generic kernel.
MIPS: KASLR: Fix handling of NULL FDT
MIPS: Malta: Fixup reboot
MIPS: CPC: Provide default mips_cpc_default_phys_base to ignore CPC
Pull parisc updates from Helge Deller:
"The first three patches are trivial and add some required KERN_CONT,
ignore the new pkey syscalls on parisc and use the LINUX_GATEWAY_ADDR
define instead of hardcoded values.
The two patches from Dave Anglin are important.
The first one avoids trashing the sr2 and sr3 space registers in the
Light-weight syscall path. Especially the usage of sr3 is critical
since it may get trashed by the interrupt handler.
The second patch is even more important and tagged for stable series.
It protects one critical section in the syscall entry path by
disabling local interrupts. Without disabling interrupts, the sr7
space register may not be in sync with the current stack setup and
thus an incoming hardware interrupt may destroy memory in random
userspace areas"
* 'parisc-4.9-3' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux:
parisc: Ignore the pkey system calls for now
parisc: Use LINUX_GATEWAY_ADDR define instead of hardcoded value
parisc: Ensure consistent state when switching to kernel stack at syscall entry
parisc: Avoid trashing sr2 and sr3 in LWS code
parisc: use KERN_CONT when printing device inventory
Race condition between registering an I2C device driver and
deregistering an I2C adapter device which is assumed to manage that
I2C device may lead to a NULL pointer dereference due to the
uninitialized list head of driver clients.
The root cause of the issue is that the I2C bus may know about the
registered device driver and thus it is matched by bus_for_each_drv(),
but the list of clients is not initialized and commonly it is NULL,
because I2C device drivers define struct i2c_driver as static and
clients field is expected to be initialized by I2C core:
i2c_register_driver() i2c_del_adapter()
driver_register() ...
bus_add_driver() ...
... bus_for_each_drv(..., __process_removed_adapter)
... i2c_do_del_adapter()
... list_for_each_entry_safe(..., &driver->clients, ...)
INIT_LIST_HEAD(&driver->clients);
To solve the problem it is sufficient to do clients list head
initialization before calling driver_register().
The problem was found while using an I2C device driver with a sluggish
registration routine on a bus provided by a physically detachable I2C
master controller, but practically the oops may be reproduced under
the race between arbitraty I2C device driver registration and managing
I2C bus device removal e.g. by unbinding the latter over sysfs:
% echo 21a4000.i2c > /sys/bus/platform/drivers/imx-i2c/unbind
Unable to handle kernel NULL pointer dereference at virtual address 00000000
Internal error: Oops: 17 [#1] SMP ARM
CPU: 2 PID: 533 Comm: sh Not tainted 4.9.0-rc3+ #61
Hardware name: Freescale i.MX6 Quad/DualLite (Device Tree)
task: e5ada400 task.stack: e4936000
PC is at i2c_do_del_adapter+0x20/0xcc
LR is at __process_removed_adapter+0x14/0x1c
Flags: NzCv IRQs on FIQs on Mode SVC_32 ISA ARM Segment none
Control: 10c5387d Table: 35bd004a DAC: 00000051
Process sh (pid: 533, stack limit = 0xe4936210)
Stack: (0xe4937d28 to 0xe4938000)
Backtrace:
[<c0667be0>] (i2c_do_del_adapter) from [<c0667cc0>] (__process_removed_adapter+0x14/0x1c)
[<c0667cac>] (__process_removed_adapter) from [<c0516998>] (bus_for_each_drv+0x6c/0xa0)
[<c051692c>] (bus_for_each_drv) from [<c06685ec>] (i2c_del_adapter+0xbc/0x284)
[<c0668530>] (i2c_del_adapter) from [<bf0110ec>] (i2c_imx_remove+0x44/0x164 [i2c_imx])
[<bf0110a8>] (i2c_imx_remove [i2c_imx]) from [<c051a838>] (platform_drv_remove+0x2c/0x44)
[<c051a80c>] (platform_drv_remove) from [<c05183d8>] (__device_release_driver+0x90/0x12c)
[<c0518348>] (__device_release_driver) from [<c051849c>] (device_release_driver+0x28/0x34)
[<c0518474>] (device_release_driver) from [<c0517150>] (unbind_store+0x80/0x104)
[<c05170d0>] (unbind_store) from [<c0516520>] (drv_attr_store+0x28/0x34)
[<c05164f8>] (drv_attr_store) from [<c0298acc>] (sysfs_kf_write+0x50/0x54)
[<c0298a7c>] (sysfs_kf_write) from [<c029801c>] (kernfs_fop_write+0x100/0x214)
[<c0297f1c>] (kernfs_fop_write) from [<c0220130>] (__vfs_write+0x34/0x120)
[<c02200fc>] (__vfs_write) from [<c0221088>] (vfs_write+0xa8/0x170)
[<c0220fe0>] (vfs_write) from [<c0221e74>] (SyS_write+0x4c/0xa8)
[<c0221e28>] (SyS_write) from [<c0108a20>] (ret_fast_syscall+0x0/0x1c)
Signed-off-by: Vladimir Zapolskiy <vladimir_zapolskiy@mentor.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Cc: stable@kernel.org
When low memory doesn't reach HIGHMEM_START (e.g. up to 256MB at PA=0 is
common) and highmem is present above HIGHMEM_START (e.g. on Malta the
RAM overlayed by the IO region is aliased at PA=0x90000000), max_low_pfn
will be initially calculated very large and then clipped down to
HIGHMEM_START.
This causes crashes when reading /sys/kernel/mm/page_idle/bitmap
(i.e. CONFIG_IDLE_PAGE_TRACKING=y) when highmem is disabled. pfn_valid()
will compare against max_mapnr which is derived from max_low_pfn when
there is no highend_pfn set up, and will return true for PFNs right up
to HIGHMEM_START, even though they are beyond the end of low memory and
no page structs will actually exist for these PFNs.
This is fixed by skipping high memory regions when initially calculating
max_low_pfn if highmem is disabled, so it doesn't get clipped too high.
We also clip regions which overlap the highmem boundary when highmem is
disabled, so that max_pfn doesn't extend into highmem either.
Signed-off-by: James Hogan <james.hogan@imgtec.com>
Cc: Paul Burton <paul.burton@imgtec.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/14490/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
David Vrabel