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

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[ 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>
This commit is contained in:
Paolo Bonzini 2020-02-04 15:26:29 -08:00 committed by Greg Kroah-Hartman
parent 719742a77e
commit ee1238c028
1 changed files with 1 additions and 1 deletions
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arch/x86/kvm/vmx.c
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@ -12340,7 +12340,7 @@ static int vmx_check_intercept(struct kvm_vcpu *vcpu,
}
/* TODO: check more intercepts... */
return X86EMUL_CONTINUE;
return X86EMUL_UNHANDLEABLE;
}
#ifdef CONFIG_X86_64