From b52a638c391c5c7b013180f5374274698b8535c8 Mon Sep 17 00:00:00 2001 From: Hollis Blanchard Date: Sat, 3 Jan 2009 16:23:11 -0600 Subject: KVM: ppc: Add kvmppc_mmu_dtlb/itlb_miss for booke When itlb or dtlb miss happens, E500 needs to update some mmu registers. So that the auto-load mechanism can work on E500 when write a tlb entry. Signed-off-by: Liu Yu Signed-off-by: Hollis Blanchard Signed-off-by: Avi Kivity --- arch/powerpc/kvm/44x_tlb.c | 8 ++++++++ arch/powerpc/kvm/booke.c | 2 ++ 2 files changed, 10 insertions(+) (limited to 'arch/powerpc/kvm') diff --git a/arch/powerpc/kvm/44x_tlb.c b/arch/powerpc/kvm/44x_tlb.c index e67b731..4a16f47 100644 --- a/arch/powerpc/kvm/44x_tlb.c +++ b/arch/powerpc/kvm/44x_tlb.c @@ -232,6 +232,14 @@ int kvmppc_mmu_dtlb_index(struct kvm_vcpu *vcpu, gva_t eaddr) return kvmppc_44x_tlb_index(vcpu, eaddr, vcpu->arch.pid, as); } +void kvmppc_mmu_itlb_miss(struct kvm_vcpu *vcpu) +{ +} + +void kvmppc_mmu_dtlb_miss(struct kvm_vcpu *vcpu) +{ +} + static void kvmppc_44x_shadow_release(struct kvmppc_vcpu_44x *vcpu_44x, unsigned int stlb_index) { diff --git a/arch/powerpc/kvm/booke.c b/arch/powerpc/kvm/booke.c index a73b395..933c406 100644 --- a/arch/powerpc/kvm/booke.c +++ b/arch/powerpc/kvm/booke.c @@ -295,6 +295,7 @@ int kvmppc_handle_exit(struct kvm_run *run, struct kvm_vcpu *vcpu, kvmppc_booke_queue_irqprio(vcpu, BOOKE_IRQPRIO_DTLB_MISS); vcpu->arch.dear = vcpu->arch.fault_dear; vcpu->arch.esr = vcpu->arch.fault_esr; + kvmppc_mmu_dtlb_miss(vcpu); kvmppc_account_exit(vcpu, DTLB_REAL_MISS_EXITS); r = RESUME_GUEST; break; @@ -337,6 +338,7 @@ int kvmppc_handle_exit(struct kvm_run *run, struct kvm_vcpu *vcpu, if (gtlb_index < 0) { /* The guest didn't have a mapping for it. */ kvmppc_booke_queue_irqprio(vcpu, BOOKE_IRQPRIO_ITLB_MISS); + kvmppc_mmu_itlb_miss(vcpu); kvmppc_account_exit(vcpu, ITLB_REAL_MISS_EXITS); break; } -- cgit v1.1