Commit 90218e43 authored Sep 25, 2020 by Alexander Graf Committed by Paolo Bonzini Sep 28, 2020

KVM: x86: Return -ENOENT on unimplemented MSRs



When we find an MSR that we can not handle, bubble up that error code as
MSR error return code. Follow up patches will use that to expose the fact
that an MSR is not handled by KVM to user space.

Suggested-by: Aaron Lewis <aaronlewis@google.com>
Signed-off-by: Alexander Graf <graf@amazon.com>
Message-Id: <20200925143422.21718-2-graf@amazon.com>
Reviewed-by: Jim Mattson <jmattson@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

parent 802145c5

arch/x86/kvm/x86.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -272,7 +272,7 @@ static int kvm_msr_ignored_check(struct kvm_vcpu *vcpu, u32 msr,
		} else {
		vcpu_debug_ratelimited(vcpu, "unhandled %s: 0x%x data 0x%llx\n",
		op, msr, data);
		return 1;
		return -ENOENT;
		}
		}

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