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ARM: KVM: Allow host virt timer irq to be different from guest timer virt irq

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The arch_timer irq numbers (or PPI numbers) are implementation dependent,
so the host virtual timer irq number can be different from guest virtual
timer irq number.

This patch ensures that host virtual timer irq number is read from DTB and
guest virtual timer irq is determined based on vcpu target type.

Signed-off-by: Anup Patel <anup.patel@linaro.org>
Signed-off-by: Pranavkumar Sawargaonkar <pranavkumar@linaro.org>
Signed-off-by: Christoffer Dall <cdall@cs.columbia.edu>
This commit is contained in:
Anup Patel
2013-04-30 12:02:15 +05:30
committed by Christoffer Dall
parent 87d41fb4da
commit 5ae7f87a56
3 changed files with 36 additions and 9 deletions
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include/kvm/arm_arch_timer.h
+4
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@@ -61,6 +61,8 @@ struct arch_timer_cpu {
#ifdef CONFIG_KVM_ARM_TIMER
int kvm_timer_hyp_init(void);
int kvm_timer_init(struct kvm *kvm);
void kvm_timer_vcpu_reset(struct kvm_vcpu *vcpu,
const struct kvm_irq_level *irq);
void kvm_timer_vcpu_init(struct kvm_vcpu *vcpu);
void kvm_timer_flush_hwstate(struct kvm_vcpu *vcpu);
void kvm_timer_sync_hwstate(struct kvm_vcpu *vcpu);
@@ -76,6 +78,8 @@ static inline int kvm_timer_init(struct kvm *kvm)
return 0;
}
static inline void kvm_timer_vcpu_reset(struct kvm_vcpu *vcpu,
const struct kvm_irq_level *irq) {}
static inline void kvm_timer_vcpu_init(struct kvm_vcpu *vcpu) {}
static inline void kvm_timer_flush_hwstate(struct kvm_vcpu *vcpu) {}
static inline void kvm_timer_sync_hwstate(struct kvm_vcpu *vcpu) {}