KVM: x86: Exit to userspace if fastpath triggers one on instruction skip

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Exit to userspace if a fastpath handler triggers such an exit, which can
happen when skipping the instruction, e.g. due to userspace
single-stepping the guest via KVM_GUESTDBG_SINGLESTEP or because of an
emulation failure.

Fixes: 404d5d7bff ("KVM: X86: Introduce more exit_fastpath_completion enum values")
Link: https://lore.kernel.org/r/20240802195120.325560-4-seanjc@google.com
Signed-off-by: Sean Christopherson <seanjc@google.com>

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Sean Christopherson 2024-08-02 12:51:18 -07:00

parent ea60229af7

commit f7f39c50ed

2 changed files with 8 additions and 2 deletions

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arch/x86/include/asm/kvm_host.h

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9

arch/x86/kvm/x86.c

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