Commit b52a638c authored by Hollis Blanchard's avatar Hollis Blanchard Committed by Avi Kivity
Browse files

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: default avatarLiu Yu <yu.liu@freescale.com>
Signed-off-by: default avatarHollis Blanchard <hollisb@us.ibm.com>
Signed-off-by: default avatarAvi Kivity <avi@redhat.com>
parent bc8080cb

arch/powerpc/include/asm/kvm_ppc.h

+2 −0
Original line number Diff line number Diff line
@@ -63,6 +63,8 @@ extern int kvmppc_mmu_dtlb_index(struct kvm_vcpu *vcpu, gva_t eaddr); 
extern int kvmppc_mmu_itlb_index(struct kvm_vcpu *vcpu, gva_t eaddr);

extern gpa_t kvmppc_mmu_xlate(struct kvm_vcpu *vcpu, unsigned int gtlb_index,

                              gva_t eaddr);

extern void kvmppc_mmu_dtlb_miss(struct kvm_vcpu *vcpu);

extern void kvmppc_mmu_itlb_miss(struct kvm_vcpu *vcpu);



extern struct kvm_vcpu *kvmppc_core_vcpu_create(struct kvm *kvm,

                                                unsigned int id);

arch/powerpc/kvm/44x_tlb.c

+8 −0
Original line number Diff line number Diff line
@@ -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)

{

arch/powerpc/kvm/booke.c

+2 −0
Original line number Diff line number Diff line
@@ -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;

		}