diff options
| author | Sean Christopherson <seanjc@google.com> | 2024-08-02 12:51:18 -0700 |
|---|---|---|
| committer | Sean Christopherson <seanjc@google.com> | 2024-08-29 19:50:21 -0700 |
| commit | f7f39c50edb9d336274371953275e0d3503b9b75 (patch) | |
| tree | 995de606a2daba4cfeb408cc89a3806eff92eaa2 /arch/x86/include/asm/kvm_host.h | |
| parent | ea60229af7fbdcdd06d798f8340a7a9b40770c53 (diff) | |
KVM: x86: Exit to userspace if fastpath triggers one on instruction skip
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: 404d5d7bff0d ("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>
Diffstat (limited to 'arch/x86/include/asm/kvm_host.h')
| -rw-r--r-- | arch/x86/include/asm/kvm_host.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h index f9dfb2d62053..430a0d369322 100644 --- a/arch/x86/include/asm/kvm_host.h +++ b/arch/x86/include/asm/kvm_host.h @@ -211,6 +211,7 @@ enum exit_fastpath_completion { EXIT_FASTPATH_NONE, EXIT_FASTPATH_REENTER_GUEST, EXIT_FASTPATH_EXIT_HANDLED, + EXIT_FASTPATH_EXIT_USERSPACE, }; typedef enum exit_fastpath_completion fastpath_t; |