linux_old1/arch/x86
Sunil Muthuswamy 81b18bce48 Drivers: HV: Send one page worth of kmsg dump over Hyper-V during panic
In the VM mode on Hyper-V, currently, when the kernel panics, an error
code and few register values are populated in an MSR and the Hypervisor
notified. This information is collected on the host. The amount of
information currently collected is found to be limited and not very
actionable. To gather more actionable data, such as stack trace, the
proposal is to write one page worth of kmsg data on an allocated page
and the Hypervisor notified of the page address through the MSR.

- Sysctl option to control the behavior, with ON by default.

Cc: K. Y. Srinivasan <kys@microsoft.com>
Cc: Stephen Hemminger <sthemmin@microsoft.com>
Signed-off-by: Sunil Muthuswamy <sunilmut@microsoft.com>
Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-07-08 15:54:31 +02:00
..
boot efi/x86: Fix incorrect invocation of PciIo->Attributes() 2018-06-24 09:05:58 +02:00
configs
crypto crypto: x86/salsa20 - remove x86 salsa20 implementations 2018-05-31 00:13:57 +08:00
entry rseq: Avoid infinite recursion when delivering SIGSEGV 2018-06-22 19:04:22 +02:00
events treewide: kzalloc() -> kcalloc() 2018-06-12 16:19:22 -07:00
hyperv Drivers: HV: Send one page worth of kmsg dump over Hyper-V during panic 2018-07-08 15:54:31 +02:00
ia32 syscalls/x86: auto-create compat_sys_*() prototypes 2018-04-02 20:16:18 +02:00
include Drivers: HV: Send one page worth of kmsg dump over Hyper-V during panic 2018-07-08 15:54:31 +02:00
kernel Drivers: hv: vmbus: Make TLFS #define names architecture neutral 2018-07-03 13:09:15 +02:00
kvm kvm: vmx: Nested VM-entry prereqs for event inj. 2018-06-22 16:46:26 +02:00
lib libnvdimm for 4.18 2018-06-08 17:21:52 -07:00
math-emu
mm Merge branch 'linus' into x86/urgent 2018-06-22 21:20:35 +02:00
net treewide: kmalloc() -> kmalloc_array() 2018-06-12 16:19:22 -07:00
oprofile x86/oprofile: Fix bogus GCC-8 warning in nmi_setup() 2018-02-21 09:54:17 +01:00
pci treewide: kzalloc() -> kcalloc() 2018-06-12 16:19:22 -07:00
platform treewide: kzalloc() -> kcalloc() 2018-06-12 16:19:22 -07:00
power x86/mm: Stop pretending pgtable_l5_enabled is a variable 2018-05-19 11:56:57 +02:00
purgatory kernel/kexec_file.c: move purgatories sha256 to common code 2018-04-13 17:10:28 -07:00
ras
realmode x86-64/realmode: Add instruction suffix 2018-02-20 09:33:41 +01:00
tools x86: Treat R_X86_64_PLT32 as R_X86_64_PC32 2018-02-22 09:01:10 -08:00
um Kconfig updates for v4.18 2018-06-06 11:31:45 -07:00
video
xen Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2018-06-24 19:59:52 +08:00
.gitignore x86/build: Add arch/x86/tools/insn_decoder_test to .gitignore 2018-02-13 14:10:29 +01:00
Kbuild
Kconfig Kbuild: rename HAVE_CC_STACKPROTECTOR config variable 2018-06-15 07:15:28 +09:00
Kconfig.cpu Merge branch 'x86-pti-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2018-03-25 07:36:02 -10:00
Kconfig.debug x86, nfit_test: Add unit test for memcpy_mcsafe() 2018-05-22 23:18:31 -07:00
Makefile Merge branch 'linus' into x86/urgent 2018-06-22 21:20:35 +02:00
Makefile.um
Makefile_32.cpu