KVM: SVM: Treat all "skip" emulation for SEV guests as outright failures

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Treat EMULTYPE_SKIP failures on SEV guests as unhandleable emulation
instead of simply resuming the guest, and drop the hack-a-fix which
effects that behavior for the INT3/INTO injection path.  If KVM can't
skip an instruction for which KVM has already done partial emulation,
resuming the guest is undesirable as doing so may corrupt guest state.

Link: https://lore.kernel.org/r/20230825013621.2845700-5-seanjc@google.com
Signed-off-by: Sean Christopherson <seanjc@google.com>

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This commit is contained in:

Sean Christopherson 2023-08-24 18:36:21 -07:00

parent aeb904f6b9

commit 0068299540

2 changed files with 8 additions and 13 deletions

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12

arch/x86/kvm/svm/svm.c

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9

arch/x86/kvm/x86.c

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