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| author | Gleb Natapov <gleb@redhat.com> | 2009-03-05 16:34:59 +0200 |
|---|---|---|
| committer | Avi Kivity <avi@redhat.com> | 2009-06-10 11:48:27 +0300 |
| commit | e1035715ef8d3171e29f9c6aee6f40d57b3fead5 (patch) | |
| tree | 1ead65420a4d1653692d0e4b66a4e4f7fcbef425 /arch/ia64 | |
| parent | 343f94fe4d16ec898da77720c03da9e09f8523d2 (diff) | |
| download | op-kernel-dev-e1035715ef8d3171e29f9c6aee6f40d57b3fead5.zip op-kernel-dev-e1035715ef8d3171e29f9c6aee6f40d57b3fead5.tar.gz | |
KVM: change the way how lowest priority vcpu is calculated
The new way does not require additional loop over vcpus to calculate
the one with lowest priority as one is chosen during delivery bitmap
construction.
Signed-off-by: Gleb Natapov <gleb@redhat.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Diffstat (limited to 'arch/ia64')
| -rw-r--r-- | arch/ia64/kvm/kvm-ia64.c | 15 | ||||
| -rw-r--r-- | arch/ia64/kvm/lapic.h | 1 |
2 files changed, 3 insertions, 13 deletions
diff --git a/arch/ia64/kvm/kvm-ia64.c b/arch/ia64/kvm/kvm-ia64.c index 8eea9cb..1887a93 100644 --- a/arch/ia64/kvm/kvm-ia64.c +++ b/arch/ia64/kvm/kvm-ia64.c @@ -1836,20 +1836,9 @@ int kvm_apic_match_logical_addr(struct kvm_lapic *apic, u8 mda) return 0; } -struct kvm_vcpu *kvm_get_lowest_prio_vcpu(struct kvm *kvm, u8 vector, - unsigned long *bitmap) +int kvm_apic_compare_prio(struct kvm_vcpu *vcpu1, struct kvm_vcpu *vcpu2) { - struct kvm_vcpu *lvcpu = kvm->vcpus[0]; - int i; - - for (i = 1; i < kvm->arch.online_vcpus; i++) { - if (!kvm->vcpus[i]) - continue; - if (lvcpu->arch.xtp > kvm->vcpus[i]->arch.xtp) - lvcpu = kvm->vcpus[i]; - } - - return lvcpu; + return vcpu1->arch.xtp - vcpu2->arch.xtp; } int kvm_apic_match_dest(struct kvm_vcpu *vcpu, struct kvm_lapic *source, diff --git a/arch/ia64/kvm/lapic.h b/arch/ia64/kvm/lapic.h index 31602e7..e42109e 100644 --- a/arch/ia64/kvm/lapic.h +++ b/arch/ia64/kvm/lapic.h @@ -22,6 +22,7 @@ int kvm_apic_match_physical_addr(struct kvm_lapic *apic, u16 dest); int kvm_apic_match_logical_addr(struct kvm_lapic *apic, u8 mda); int kvm_apic_match_dest(struct kvm_vcpu *vcpu, struct kvm_lapic *source, int short_hand, int dest, int dest_mode); +int kvm_apic_compare_prio(struct kvm_vcpu *vcpu1, struct kvm_vcpu *vcpu2); bool kvm_apic_present(struct kvm_vcpu *vcpu); int kvm_apic_set_irq(struct kvm_vcpu *vcpu, u8 vec, u8 dmode, u8 trig); |
