Re: [PATCH v4 5/6] KVM: x86: Always complete hypercall via function callback

From: Sean Christopherson
Date: Mon Dec 02 2024 - 19:14:53 EST


On Mon, Dec 02, 2024, Tom Lendacky wrote:
> On 12/2/24 14:57, Tom Lendacky wrote:
> > On 11/27/24 18:43, Sean Christopherson wrote:
>
> >> @@ -10071,13 +10072,15 @@ unsigned long __kvm_emulate_hypercall(struct kvm_vcpu *vcpu, unsigned long nr,
> >> }
> >>
> >> out:
> >> - return ret;
> >> + vcpu->run->hypercall.ret = ret;
> >> + complete_hypercall(vcpu);
> >> + return 1;
> >
> > Should this do return complete_hypercall(vcpu) so that you get the
> > return code from kvm_skip_emulated_instruction()?
>
> Bah, ignore... already commented on by Xiaoyao.

Reviewers: 2, Sean: 0

:-)