linux/arch
Marc Orr 0447378a4a kvm: vmx: Nested VM-entry prereqs for event inj.
This patch extends the checks done prior to a nested VM entry.
Specifically, it extends the check_vmentry_prereqs function with checks
for fields relevant to the VM-entry event injection information, as
described in the Intel SDM, volume 3.

This patch is motivated by a syzkaller bug, where a bad VM-entry
interruption information field is generated in the VMCS02, which causes
the nested VM launch to fail. Then, KVM fails to resume L1.

While KVM should be improved to correctly resume L1 execution after a
failed nested launch, this change is justified because the existing code
to resume L1 is flaky/ad-hoc and the test coverage for resuming L1 is
sparse.

Reported-by: syzbot <syzkaller@googlegroups.com>
Signed-off-by: Marc Orr <marcorr@google.com>
[Removed comment whose parts were describing previous revisions and the
 rest was obvious from function/variable naming. - Radim]
Signed-off-by: Radim Krčmář <rkrcmar@redhat.com>
2018-06-22 16:46:26 +02:00
..
alpha Kbuild updates for v4.18 2018-06-06 11:00:15 -07:00
arc mm: introduce ARCH_HAS_PTE_SPECIAL 2018-06-07 17:34:35 -07:00
arm docs: Fix some broken references 2018-06-15 18:10:01 -03:00
arm64 KVM: arm64: Avoid mistaken attempts to save SVE state for vcpus 2018-06-21 09:14:44 +01:00
c6x Merge branch 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2018-06-04 20:27:54 -07:00
h8300 Merge branch 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2018-06-04 20:27:54 -07:00
hexagon hexagon: drop the unused variable zero_page_mask 2018-06-15 07:55:25 +09:00
ia64 - Error path bug fix for overflow tests (Dan) 2018-06-12 18:28:00 -07:00
m68k Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu 2018-06-05 10:51:30 -07:00
microblaze docs: Fix some broken references 2018-06-15 18:10:01 -03:00
mips Merge branch 'akpm' (patches from Andrew) 2018-06-15 08:51:42 +09:00
nds32 Merge branch 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2018-06-04 20:27:54 -07:00
nios2 Merge branch 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2018-06-04 20:27:54 -07:00
openrisc Kbuild updates for v4.18 2018-06-06 11:00:15 -07:00
parisc arch/*: Kconfig: fix documentation for NMI watchdog 2018-06-15 12:48:59 -03:00
powerpc Mostly the PPC part of the release, but also switching to Arnd's fix 2018-06-16 06:37:04 +09:00
riscv RISC-V Updates for the 4.18 Merge Window 2018-06-16 06:42:43 +09:00
s390 - Error path bug fix for overflow tests (Dan) 2018-06-12 18:28:00 -07:00
sh arch/*: Kconfig: fix documentation for NMI watchdog 2018-06-15 12:48:59 -03:00
sparc arch/*: Kconfig: fix documentation for NMI watchdog 2018-06-15 12:48:59 -03:00
um Solve a series of broken links for files under Documentation: 2018-06-17 05:25:18 +09:00
unicore32 docs: Fix some broken references 2018-06-15 18:10:01 -03:00
x86 kvm: vmx: Nested VM-entry prereqs for event inj. 2018-06-22 16:46:26 +02:00
xtensa docs: Fix some broken references 2018-06-15 18:10:01 -03:00
.gitignore
Kconfig docs: Fix some broken references 2018-06-15 18:10:01 -03:00