Commit 684851a1 authored by Takuya Yoshikawa's avatar Takuya Yoshikawa Committed by Paolo Bonzini
Browse files

KVM: x86: Break kvm_for_each_vcpu loop after finding the VP_INDEX 



No need to scan the entire VCPU array.

Signed-off-by: default avatarTakuya Yoshikawa <yoshikawa_takuya_b1@lab.ntt.co.jp>
Signed-off-by: default avatarPaolo Bonzini <pbonzini@redhat.com>
parent 9cac38dd

arch/x86/kvm/x86.c

+5 −2
Original line number Diff line number Diff line
@@ -2328,11 +2328,14 @@ static int get_msr_hyperv(struct kvm_vcpu *vcpu, u32 msr, u64 *pdata) 
	case HV_X64_MSR_VP_INDEX: {

		int r;

		struct kvm_vcpu *v;

		kvm_for_each_vcpu(r, v, vcpu->kvm)

			if (v == vcpu)

		kvm_for_each_vcpu(r, v, vcpu->kvm) {

			if (v == vcpu) {

				data = r;

				break;

			}

		}

		break;

	}

	case HV_X64_MSR_EOI:

		return kvm_hv_vapic_msr_read(vcpu, APIC_EOI, pdata);

	case HV_X64_MSR_ICR: