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authorPaolo Bonzini <pbonzini@redhat.com>2016-12-18 14:02:21 +0100
committerRadim Krčmář <rkrcmar@redhat.com>2017-01-09 14:48:00 +0100
commiteb90f3417a0cc4880e979ccc84e41890d410ea5b (patch)
treee2fb1a6d70e064e30706848ae6a2899f21e8cc2a /arch/x86/kvm/lapic.c
parent0f1e261ead16ce09169bf2d223d4c8803576f85e (diff)
downloadlinux-eb90f3417a0cc4880e979ccc84e41890d410ea5b.tar.bz2
KVM: vmx: speed up TPR below threshold vmexits
Since we're already in VCPU context, all we have to do here is recompute the PPR value. That will in turn generate a KVM_REQ_EVENT if necessary. Reviewed-by: Roman Kagan <rkagan@virtuozzo.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'arch/x86/kvm/lapic.c')
-rw-r--r--arch/x86/kvm/lapic.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/arch/x86/kvm/lapic.c b/arch/x86/kvm/lapic.c
index 7e9ac4606279..6b1d3a76c1d0 100644
--- a/arch/x86/kvm/lapic.c
+++ b/arch/x86/kvm/lapic.c
@@ -595,6 +595,12 @@ static void apic_update_ppr(struct kvm_lapic *apic)
}
}
+void kvm_apic_update_ppr(struct kvm_vcpu *vcpu)
+{
+ apic_update_ppr(vcpu->arch.apic);
+}
+EXPORT_SYMBOL_GPL(kvm_apic_update_ppr);
+
static void apic_set_tpr(struct kvm_lapic *apic, u32 tpr)
{
kvm_lapic_set_reg(apic, APIC_TASKPRI, tpr);