On Wed, Apr 21, 2021, Paolo Bonzini wrote:
> @@ -8334,6 +8350,26 @@ int kvm_emulate_hypercall(struct kvm_vcpu *vcpu)
> kvm_sched_yield(vcpu, a0);
> ret = 0;
> break;
> + case KVM_HC_PAGE_ENC_STATUS: {
> + u64 gpa = a0, npages = a1, enc = a2;
newline
> + if (!guest_pv_has(vcpu, KVM_FEATURE_HC_PAGE_ENC_STATUS)
> + || !(vcpu->kvm->arch.hypercall_exit_enabled & (1 << KVM_HC_PAGE_ENC_STATUS)))
|| on previous line, pretty please :-)
> + break;
> +
> + ret = -KVM_EINVAL;
> + if (!PAGE_ALIGNED(gpa) || !npages ||
> + gpa_to_gfn(gpa) + npages <= gpa_to_gfn(gpa))
> + break;
> +
> + vcpu->run->exit_reason = KVM_EXIT_HYPERCALL;
> + vcpu->run->hypercall.nr = KVM_HC_PAGE_ENC_STATUS;
> + vcpu->run->hypercall.args[0] = gpa;
> + vcpu->run->hypercall.args[1] = npages;
> + vcpu->run->hypercall.args[2] = enc;
> + vcpu->run->hypercall.longmode = op_64_bit;
> + vcpu->arch.complete_userspace_io = complete_hypercall_exit;
> + return 0;
> + }
> default:
> ret = -KVM_ENOSYS;
> break;
