Commit ed9e97c3 authored Feb 04, 2020 by Paolo Bonzini Committed by Greg Kroah-Hartman Feb 28, 2020

KVM: nVMX: Don't emulate instructions in guest mode



commit 07721feee46b4b248402133228235318199b05ec upstream.

vmx_check_intercept is not yet fully implemented. To avoid emulating
instructions disallowed by the L1 hypervisor, refuse to emulate
instructions by default.

Cc: stable@vger.kernel.org
[Made commit, added commit msg - Oliver]
Signed-off-by: Oliver Upton <oupton@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

parent 6ca274be

arch/x86/kvm/vmx.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -13694,7 +13694,7 @@ static int vmx_check_intercept(struct kvm_vcpu *vcpu,
		}

		/* TODO: check more intercepts... */
		return X86EMUL_CONTINUE;
		return X86EMUL_UNHANDLEABLE;
		}

		#ifdef CONFIG_X86_64