diff options
Diffstat (limited to 'arch/powerpc/kvm/44x_emulate.c')
| -rw-r--r-- | arch/powerpc/kvm/44x_emulate.c | 36 |
1 files changed, 23 insertions, 13 deletions
diff --git a/arch/powerpc/kvm/44x_emulate.c b/arch/powerpc/kvm/44x_emulate.c index c8c61578fdfc..3843a75e3e98 100644 --- a/arch/powerpc/kvm/44x_emulate.c +++ b/arch/powerpc/kvm/44x_emulate.c @@ -28,11 +28,29 @@ #include "44x_tlb.h" #define XOP_MFDCR 323 +#define XOP_MTDCRX 387 #define XOP_MTDCR 451 #define XOP_TLBSX 914 #define XOP_ICCCI 966 #define XOP_TLBWE 978 +static int emulate_mtdcr(struct kvm_vcpu *vcpu, int rs, int dcrn) +{ + /* emulate some access in kernel */ + switch (dcrn) { + case DCRN_CPR0_CONFIG_ADDR: + vcpu->arch.cpr0_cfgaddr = kvmppc_get_gpr(vcpu, rs); + return EMULATE_DONE; + default: + vcpu->run->dcr.dcrn = dcrn; + vcpu->run->dcr.data = kvmppc_get_gpr(vcpu, rs); + vcpu->run->dcr.is_write = 1; + vcpu->arch.dcr_needed = 1; + kvmppc_account_exit(vcpu, DCR_EXITS); + return EMULATE_DO_DCR; + } +} + int kvmppc_core_emulate_op(struct kvm_run *run, struct kvm_vcpu *vcpu, unsigned int inst, int *advance) { @@ -85,20 +103,12 @@ int kvmppc_core_emulate_op(struct kvm_run *run, struct kvm_vcpu *vcpu, break; case XOP_MTDCR: - /* emulate some access in kernel */ - switch (dcrn) { - case DCRN_CPR0_CONFIG_ADDR: - vcpu->arch.cpr0_cfgaddr = kvmppc_get_gpr(vcpu, rs); - break; - default: - run->dcr.dcrn = dcrn; - run->dcr.data = kvmppc_get_gpr(vcpu, rs); - run->dcr.is_write = 1; - vcpu->arch.dcr_needed = 1; - kvmppc_account_exit(vcpu, DCR_EXITS); - emulated = EMULATE_DO_DCR; - } + emulated = emulate_mtdcr(vcpu, rs, dcrn); + break; + case XOP_MTDCRX: + emulated = emulate_mtdcr(vcpu, rs, + kvmppc_get_gpr(vcpu, ra)); break; case XOP_TLBWE: |