Messages in this thread Patch in this message | | | From | Ben Hutchings <> | Date | Fri, 24 Apr 2020 00:07:24 +0100 | Subject | [PATCH 3.16 217/245] KVM: nVMX: Don't emulate instructions in guest mode |
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3.16.83-rc1 review patch. If anyone has any objections, please let me know.
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From: Paolo Bonzini <pbonzini@redhat.com>
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.
[Made commit, added commit msg - Oliver] Signed-off-by: Oliver Upton <oupton@google.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> [bwh: Backported to 3.16: adjust filename, context] Signed-off-by: Ben Hutchings <ben@decadent.org.uk> --- arch/x86/kvm/vmx.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/arch/x86/kvm/vmx.c +++ b/arch/x86/kvm/vmx.c @@ -8938,7 +8938,7 @@ static int vmx_check_intercept(struct kv struct x86_instruction_info *info, enum x86_intercept_stage stage) { - return X86EMUL_CONTINUE; + return X86EMUL_UNHANDLEABLE; } static struct kvm_x86_ops vmx_x86_ops = {
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