KVM: x86: Update retry protection fields when forcing retry on emulation failure

Browse source

When retrying the faulting instruction after emulation failure, refresh
the infinite loop protection fields even if no shadow pages were zapped,
i.e. avoid hitting an infinite loop even when retrying the instruction as
a last-ditch effort to avoid terminating the guest.

Link: https://lore.kernel.org/r/20240831001538.336683-19-seanjc@google.com
Signed-off-by: Sean Christopherson <seanjc@google.com>

...

This commit is contained in:

Sean Christopherson 2024-08-30 17:15:33 -07:00

parent dabc4ff70c

commit 4df685664b

3 changed files with 17 additions and 7 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

10

arch/x86/include/asm/kvm_host.h

View file

12

arch/x86/kvm/mmu/mmu.c

View file

2

arch/x86/kvm/x86.c

View file