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| author | Paolo Bonzini <pbonzini@redhat.com> | 2015-07-29 10:43:18 +0200 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2015-10-01 15:06:23 +0200 |
| commit | 3bb345f387dd26beb097cf776e342bc0d96d805a (patch) | |
| tree | 39b5e7634f75136c0b8917211b04462d5831735d /arch/x86/kvm/vmx.c | |
| parent | bdaffe1d93e7eddbcc71d074a5d49eba7fe1c765 (diff) | |
| download | op-kernel-dev-3bb345f387dd26beb097cf776e342bc0d96d805a.zip op-kernel-dev-3bb345f387dd26beb097cf776e342bc0d96d805a.tar.gz | |
KVM: x86: store IOAPIC-handled vectors in each VCPU
We can reuse the algorithm that computes the EOI exit bitmap to figure
out which vectors are handled by the IOAPIC. The only difference
between the two is for edge-triggered interrupts other than IRQ8
that have no notifiers active; however, the IOAPIC does not have to
do anything special for these interrupts anyway.
This again limits the interactions between the IOAPIC and the LAPIC,
making it easier to move the former to userspace.
Inspired by a patch from Steve Rutherford.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'arch/x86/kvm/vmx.c')
| -rw-r--r-- | arch/x86/kvm/vmx.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c index 06ef490..9381b1d 100644 --- a/arch/x86/kvm/vmx.c +++ b/arch/x86/kvm/vmx.c @@ -8043,8 +8043,9 @@ static void vmx_hwapic_irr_update(struct kvm_vcpu *vcpu, int max_irr) } } -static void vmx_load_eoi_exitmap(struct kvm_vcpu *vcpu, u64 *eoi_exit_bitmap) +static void vmx_load_eoi_exitmap(struct kvm_vcpu *vcpu) { + u64 *eoi_exit_bitmap = vcpu->arch.eoi_exit_bitmap; if (!vmx_vm_has_apicv(vcpu->kvm)) return; |
