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KVM: PPC: e500: MMU API

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This implements a shared-memory API for giving host userspace access to
the guest's TLB.

Signed-off-by: Scott Wood <scottwood@freescale.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
Signed-off-by: Avi Kivity <avi@redhat.com>
This commit is contained in:
Scott Wood
2011-08-18 15:25:21 -05:00
committed by Avi Kivity
parent 0164c0f0c4
commit dc83b8bc02
10 changed files with 469 additions and 163 deletions
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arch/powerpc/kvm/e500_emulate.c
+8 -4
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@@ -95,13 +95,17 @@ int kvmppc_core_emulate_mtspr(struct kvm_vcpu *vcpu, int sprn, int rs)
case SPRN_MAS2:
vcpu_e500->mas2 = spr_val; break;
case SPRN_MAS3:
vcpu_e500->mas3 = spr_val; break;
vcpu_e500->mas7_3 &= ~(u64)0xffffffff;
vcpu_e500->mas7_3 |= spr_val;
break;
case SPRN_MAS4:
vcpu_e500->mas4 = spr_val; break;
case SPRN_MAS6:
vcpu_e500->mas6 = spr_val; break;
case SPRN_MAS7:
vcpu_e500->mas7 = spr_val; break;
vcpu_e500->mas7_3 &= (u64)0xffffffff;
vcpu_e500->mas7_3 |= (u64)spr_val << 32;
break;
case SPRN_L1CSR0:
vcpu_e500->l1csr0 = spr_val;
vcpu_e500->l1csr0 &= ~(L1CSR0_DCFI | L1CSR0_CLFC);
@@ -158,13 +162,13 @@ int kvmppc_core_emulate_mfspr(struct kvm_vcpu *vcpu, int sprn, int rt)
case SPRN_MAS2:
kvmppc_set_gpr(vcpu, rt, vcpu_e500->mas2); break;
case SPRN_MAS3:
kvmppc_set_gpr(vcpu, rt, vcpu_e500->mas3); break;
kvmppc_set_gpr(vcpu, rt, (u32)vcpu_e500->mas7_3); break;
case SPRN_MAS4:
kvmppc_set_gpr(vcpu, rt, vcpu_e500->mas4); break;
case SPRN_MAS6:
kvmppc_set_gpr(vcpu, rt, vcpu_e500->mas6); break;
case SPRN_MAS7:
kvmppc_set_gpr(vcpu, rt, vcpu_e500->mas7); break;
kvmppc_set_gpr(vcpu, rt, vcpu_e500->mas7_3 >> 32); break;
case SPRN_TLB0CFG:
kvmppc_set_gpr(vcpu, rt, vcpu_e500->tlb0cfg); break;