Commit 86dc39e5 authored Feb 04, 2020 by Paolo Bonzini Committed by Greg Kroah-Hartman Feb 28, 2020

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



[ Upstream commit 07721feee46b4b248402133228235318199b05ec ]

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: Sasha Levin <sashal@kernel.org>

parent 73e82ee9

arch/x86/kvm/vmx.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -11354,7 +11354,7 @@ static int vmx_check_intercept(struct kvm_vcpu *vcpu,
		}

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

		#ifdef CONFIG_X86_64