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author | Yang Zhang <yang.z.zhang@Intel.com> | 2013-04-11 19:25:13 +0800 |
---|---|---|
committer | Marcelo Tosatti <mtosatti@redhat.com> | 2013-04-16 16:32:40 -0300 |
commit | 3d81bc7e96d6bca0b8f8b7d1bf6ea72caa3aac57 (patch) | |
tree | 3e8d83b8d80c87c38cc0bb1d3caef6286ad9dd48 /virt/kvm/ioapic.c | |
parent | 01e439be7753c163932538276f04f95cb1b66697 (diff) | |
download | linux-3d81bc7e96d6bca0b8f8b7d1bf6ea72caa3aac57.tar.gz linux-3d81bc7e96d6bca0b8f8b7d1bf6ea72caa3aac57.tar.bz2 linux-3d81bc7e96d6bca0b8f8b7d1bf6ea72caa3aac57.zip |
KVM: Call common update function when ioapic entry changed.
Both TMR and EOI exit bitmap need to be updated when ioapic changed
or vcpu's id/ldr/dfr changed. So use common function instead eoi exit
bitmap specific function.
Signed-off-by: Yang Zhang <yang.z.zhang@Intel.com>
Reviewed-by: Gleb Natapov <gleb@redhat.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Diffstat (limited to 'virt/kvm/ioapic.c')
-rw-r--r-- | virt/kvm/ioapic.c | 22 |
1 files changed, 13 insertions, 9 deletions
diff --git a/virt/kvm/ioapic.c b/virt/kvm/ioapic.c index 97c67a50f904..f2157a985a1f 100644 --- a/virt/kvm/ioapic.c +++ b/virt/kvm/ioapic.c @@ -193,15 +193,13 @@ static void update_handled_vectors(struct kvm_ioapic *ioapic) smp_wmb(); } -void kvm_ioapic_calculate_eoi_exitmap(struct kvm_vcpu *vcpu, - u64 *eoi_exit_bitmap) +void kvm_ioapic_scan_entry(struct kvm_vcpu *vcpu, u64 *eoi_exit_bitmap) { struct kvm_ioapic *ioapic = vcpu->kvm->arch.vioapic; union kvm_ioapic_redirect_entry *e; int index; spin_lock(&ioapic->lock); - /* traverse ioapic entry to set eoi exit bitmap*/ for (index = 0; index < IOAPIC_NUM_PINS; index++) { e = &ioapic->redirtbl[index]; if (!e->fields.mask && @@ -215,16 +213,22 @@ void kvm_ioapic_calculate_eoi_exitmap(struct kvm_vcpu *vcpu, } spin_unlock(&ioapic->lock); } -EXPORT_SYMBOL_GPL(kvm_ioapic_calculate_eoi_exitmap); -void kvm_ioapic_make_eoibitmap_request(struct kvm *kvm) +#ifdef CONFIG_X86 +void kvm_vcpu_request_scan_ioapic(struct kvm *kvm) { struct kvm_ioapic *ioapic = kvm->arch.vioapic; - if (!kvm_apic_vid_enabled(kvm) || !ioapic) + if (!ioapic) return; - kvm_make_update_eoibitmap_request(kvm); + kvm_make_scan_ioapic_request(kvm); } +#else +void kvm_vcpu_request_scan_ioapic(struct kvm *kvm) +{ + return; +} +#endif static void ioapic_write_indirect(struct kvm_ioapic *ioapic, u32 val) { @@ -267,7 +271,7 @@ static void ioapic_write_indirect(struct kvm_ioapic *ioapic, u32 val) if (e->fields.trig_mode == IOAPIC_LEVEL_TRIG && ioapic->irr & (1 << index)) ioapic_service(ioapic, index, false); - kvm_ioapic_make_eoibitmap_request(ioapic->kvm); + kvm_vcpu_request_scan_ioapic(ioapic->kvm); break; } } @@ -586,7 +590,7 @@ int kvm_set_ioapic(struct kvm *kvm, struct kvm_ioapic_state *state) spin_lock(&ioapic->lock); memcpy(ioapic, state, sizeof(struct kvm_ioapic_state)); update_handled_vectors(ioapic); - kvm_ioapic_make_eoibitmap_request(kvm); + kvm_vcpu_request_scan_ioapic(kvm); kvm_rtc_eoi_tracking_restore_all(ioapic); spin_unlock(&ioapic->lock); return 0; |