diff options
Diffstat (limited to 'arch/powerpc/kvm/e500_emulate.c')
| -rw-r--r-- | arch/powerpc/kvm/e500_emulate.c | 82 |
1 files changed, 74 insertions, 8 deletions
diff --git a/arch/powerpc/kvm/e500_emulate.c b/arch/powerpc/kvm/e500_emulate.c index e04b0ef55ce..002d5176414 100644 --- a/arch/powerpc/kvm/e500_emulate.c +++ b/arch/powerpc/kvm/e500_emulate.c @@ -19,6 +19,7 @@ #include "booke.h" #include "e500.h" +#define XOP_DCBTLS 166 #define XOP_MSGSND 206 #define XOP_MSGCLR 238 #define XOP_TLBIVAX 786 @@ -26,6 +27,7 @@ #define XOP_TLBRE 946 #define XOP_TLBWE 978 #define XOP_TLBILX 18 +#define XOP_EHPRIV 270 #ifdef CONFIG_KVM_E500MC static int dbell2prio(ulong param) @@ -82,18 +84,52 @@ static int kvmppc_e500_emul_msgsnd(struct kvm_vcpu *vcpu, int rb) } #endif -int kvmppc_core_emulate_op(struct kvm_run *run, struct kvm_vcpu *vcpu, - unsigned int inst, int *advance) +static int kvmppc_e500_emul_ehpriv(struct kvm_run *run, struct kvm_vcpu *vcpu, + unsigned int inst, int *advance) +{ + int emulated = EMULATE_DONE; + + switch (get_oc(inst)) { + case EHPRIV_OC_DEBUG: + run->exit_reason = KVM_EXIT_DEBUG; + run->debug.arch.address = vcpu->arch.pc; + run->debug.arch.status = 0; + kvmppc_account_exit(vcpu, DEBUG_EXITS); + emulated = EMULATE_EXIT_USER; + *advance = 0; + break; + default: + emulated = EMULATE_FAIL; + } + return emulated; +} + +static int kvmppc_e500_emul_dcbtls(struct kvm_vcpu *vcpu) +{ + struct kvmppc_vcpu_e500 *vcpu_e500 = to_e500(vcpu); + + /* Always fail to lock the cache */ + vcpu_e500->l1csr0 |= L1CSR0_CUL; + return EMULATE_DONE; +} + +int kvmppc_core_emulate_op_e500(struct kvm_run *run, struct kvm_vcpu *vcpu, + unsigned int inst, int *advance) { int emulated = EMULATE_DONE; int ra = get_ra(inst); int rb = get_rb(inst); int rt = get_rt(inst); + gva_t ea; switch (get_op(inst)) { case 31: switch (get_xop(inst)) { + case XOP_DCBTLS: + emulated = kvmppc_e500_emul_dcbtls(vcpu); + break; + #ifdef CONFIG_KVM_E500MC case XOP_MSGSND: emulated = kvmppc_e500_emul_msgsnd(vcpu, rb); @@ -113,15 +149,25 @@ int kvmppc_core_emulate_op(struct kvm_run *run, struct kvm_vcpu *vcpu, break; case XOP_TLBSX: - emulated = kvmppc_e500_emul_tlbsx(vcpu,rb); + ea = kvmppc_get_ea_indexed(vcpu, ra, rb); + emulated = kvmppc_e500_emul_tlbsx(vcpu, ea); break; - case XOP_TLBILX: - emulated = kvmppc_e500_emul_tlbilx(vcpu, rt, ra, rb); + case XOP_TLBILX: { + int type = rt & 0x3; + ea = kvmppc_get_ea_indexed(vcpu, ra, rb); + emulated = kvmppc_e500_emul_tlbilx(vcpu, type, ea); break; + } case XOP_TLBIVAX: - emulated = kvmppc_e500_emul_tlbivax(vcpu, ra, rb); + ea = kvmppc_get_ea_indexed(vcpu, ra, rb); + emulated = kvmppc_e500_emul_tlbivax(vcpu, ea); + break; + + case XOP_EHPRIV: + emulated = kvmppc_e500_emul_ehpriv(run, vcpu, inst, + advance); break; default: @@ -140,7 +186,7 @@ int kvmppc_core_emulate_op(struct kvm_run *run, struct kvm_vcpu *vcpu, return emulated; } -int kvmppc_core_emulate_mtspr(struct kvm_vcpu *vcpu, int sprn, ulong spr_val) +int kvmppc_core_emulate_mtspr_e500(struct kvm_vcpu *vcpu, int sprn, ulong spr_val) { struct kvmppc_vcpu_e500 *vcpu_e500 = to_e500(vcpu); int emulated = EMULATE_DONE; @@ -190,6 +236,7 @@ int kvmppc_core_emulate_mtspr(struct kvm_vcpu *vcpu, int sprn, ulong spr_val) break; case SPRN_L1CSR1: vcpu_e500->l1csr1 = spr_val; + vcpu_e500->l1csr1 &= ~(L1CSR1_ICFI | L1CSR1_ICLFR); break; case SPRN_HID0: vcpu_e500->hid0 = spr_val; @@ -231,7 +278,7 @@ int kvmppc_core_emulate_mtspr(struct kvm_vcpu *vcpu, int sprn, ulong spr_val) return emulated; } -int kvmppc_core_emulate_mfspr(struct kvm_vcpu *vcpu, int sprn, ulong *spr_val) +int kvmppc_core_emulate_mfspr_e500(struct kvm_vcpu *vcpu, int sprn, ulong *spr_val) { struct kvmppc_vcpu_e500 *vcpu_e500 = to_e500(vcpu); int emulated = EMULATE_DONE; @@ -278,6 +325,16 @@ int kvmppc_core_emulate_mfspr(struct kvm_vcpu *vcpu, int sprn, ulong *spr_val) case SPRN_TLB1CFG: *spr_val = vcpu->arch.tlbcfg[1]; break; + case SPRN_TLB0PS: + if (!has_feature(vcpu, VCPU_FTR_MMU_V2)) + return EMULATE_FAIL; + *spr_val = vcpu->arch.tlbps[0]; + break; + case SPRN_TLB1PS: + if (!has_feature(vcpu, VCPU_FTR_MMU_V2)) + return EMULATE_FAIL; + *spr_val = vcpu->arch.tlbps[1]; + break; case SPRN_L1CSR0: *spr_val = vcpu_e500->l1csr0; break; @@ -301,6 +358,15 @@ int kvmppc_core_emulate_mfspr(struct kvm_vcpu *vcpu, int sprn, ulong *spr_val) case SPRN_MMUCFG: *spr_val = vcpu->arch.mmucfg; break; + case SPRN_EPTCFG: + if (!has_feature(vcpu, VCPU_FTR_MMU_V2)) + return EMULATE_FAIL; + /* + * Legacy Linux guests access EPTCFG register even if the E.PT + * category is disabled in the VM. Give them a chance to live. + */ + *spr_val = vcpu->arch.eptcfg; + break; /* extra exceptions */ case SPRN_IVOR32: |