diff options
Diffstat (limited to 'arch/powerpc/kvm/44x_tlb.c')
| -rw-r--r-- | arch/powerpc/kvm/44x_tlb.c | 39 |
1 files changed, 28 insertions, 11 deletions
diff --git a/arch/powerpc/kvm/44x_tlb.c b/arch/powerpc/kvm/44x_tlb.c index 9a34b8edb9e2..4a16f472cc18 100644 --- a/arch/powerpc/kvm/44x_tlb.c +++ b/arch/powerpc/kvm/44x_tlb.c @@ -208,20 +208,38 @@ int kvmppc_44x_tlb_index(struct kvm_vcpu *vcpu, gva_t eaddr, unsigned int pid, return -1; } -int kvmppc_44x_itlb_index(struct kvm_vcpu *vcpu, gva_t eaddr) +gpa_t kvmppc_mmu_xlate(struct kvm_vcpu *vcpu, unsigned int gtlb_index, + gva_t eaddr) +{ + struct kvmppc_vcpu_44x *vcpu_44x = to_44x(vcpu); + struct kvmppc_44x_tlbe *gtlbe = &vcpu_44x->guest_tlb[gtlb_index]; + unsigned int pgmask = get_tlb_bytes(gtlbe) - 1; + + return get_tlb_raddr(gtlbe) | (eaddr & pgmask); +} + +int kvmppc_mmu_itlb_index(struct kvm_vcpu *vcpu, gva_t eaddr) { unsigned int as = !!(vcpu->arch.msr & MSR_IS); return kvmppc_44x_tlb_index(vcpu, eaddr, vcpu->arch.pid, as); } -int kvmppc_44x_dtlb_index(struct kvm_vcpu *vcpu, gva_t eaddr) +int kvmppc_mmu_dtlb_index(struct kvm_vcpu *vcpu, gva_t eaddr) { unsigned int as = !!(vcpu->arch.msr & MSR_DS); 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) { @@ -248,7 +266,7 @@ static void kvmppc_44x_shadow_release(struct kvmppc_vcpu_44x *vcpu_44x, KVMTRACE_1D(STLB_INVAL, &vcpu_44x->vcpu, stlb_index, handler); } -void kvmppc_core_destroy_mmu(struct kvm_vcpu *vcpu) +void kvmppc_mmu_destroy(struct kvm_vcpu *vcpu) { struct kvmppc_vcpu_44x *vcpu_44x = to_44x(vcpu); int i; @@ -269,15 +287,19 @@ void kvmppc_core_destroy_mmu(struct kvm_vcpu *vcpu) * Caller must ensure that the specified guest TLB entry is safe to insert into * the shadow TLB. */ -void kvmppc_mmu_map(struct kvm_vcpu *vcpu, u64 gvaddr, gpa_t gpaddr, u64 asid, - u32 flags, u32 max_bytes, unsigned int gtlb_index) +void kvmppc_mmu_map(struct kvm_vcpu *vcpu, u64 gvaddr, gpa_t gpaddr, + unsigned int gtlb_index) { struct kvmppc_44x_tlbe stlbe; struct kvmppc_vcpu_44x *vcpu_44x = to_44x(vcpu); + struct kvmppc_44x_tlbe *gtlbe = &vcpu_44x->guest_tlb[gtlb_index]; struct kvmppc_44x_shadow_ref *ref; struct page *new_page; hpa_t hpaddr; gfn_t gfn; + u32 asid = gtlbe->tid; + u32 flags = gtlbe->word2; + u32 max_bytes = get_tlb_bytes(gtlbe); unsigned int victim; /* Select TLB entry to clobber. Indirectly guard against races with the TLB @@ -448,10 +470,8 @@ int kvmppc_44x_emul_tlbwe(struct kvm_vcpu *vcpu, u8 ra, u8 rs, u8 ws) } if (tlbe_is_host_safe(vcpu, tlbe)) { - u64 asid; gva_t eaddr; gpa_t gpaddr; - u32 flags; u32 bytes; eaddr = get_tlb_eaddr(tlbe); @@ -462,10 +482,7 @@ int kvmppc_44x_emul_tlbwe(struct kvm_vcpu *vcpu, u8 ra, u8 rs, u8 ws) eaddr &= ~(bytes - 1); gpaddr &= ~(bytes - 1); - asid = (tlbe->word0 & PPC44x_TLB_TS) | tlbe->tid; - flags = tlbe->word2 & 0xffff; - - kvmppc_mmu_map(vcpu, eaddr, gpaddr, asid, flags, bytes, gtlb_index); + kvmppc_mmu_map(vcpu, eaddr, gpaddr, gtlb_index); } KVMTRACE_5D(GTLB_WRITE, vcpu, gtlb_index, tlbe->tid, tlbe->word0, |