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authorSean Christopherson <seanjc@google.com>2022-01-20 01:07:11 +0000
committerPaolo Bonzini <pbonzini@redhat.com>2022-01-26 12:14:59 -0500
commit55467fcd55b89c622e62b4afe60ac0eb2fae91f2 (patch)
tree0be769041f9b3727aaa41c50a75c292f474e6d83 /samples/kfifo
parent47c28d436f409f5b009dc82bd82d4971088aa391 (diff)
KVM: SVM: Never reject emulation due to SMAP errata for !SEV guests
Always signal that emulation is possible for !SEV guests regardless of whether or not the CPU provided a valid instruction byte stream. KVM can read all guest state (memory and registers) for !SEV guests, i.e. can fetch the code stream from memory even if the CPU failed to do so because of the SMAP errata. Fixes: 05d5a4863525 ("KVM: SVM: Workaround errata#1096 (insn_len maybe zero on SMAP violation)") Cc: stable@vger.kernel.org Cc: Tom Lendacky <thomas.lendacky@amd.com> Cc: Brijesh Singh <brijesh.singh@amd.com> Signed-off-by: Sean Christopherson <seanjc@google.com> Reviewed-by: Liam Merwick <liam.merwick@oracle.com> Message-Id: <20220120010719.711476-2-seanjc@google.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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