diff --git a/target-ppc/kvm.c b/target-ppc/kvm.c index 02ab559836..44511592b4 100644 --- a/target-ppc/kvm.c +++ b/target-ppc/kvm.c @@ -521,6 +521,132 @@ static void kvm_put_one_spr(CPUState *cs, uint64_t id, int spr) } } +static int kvm_put_fp(CPUState *cs) +{ + PowerPCCPU *cpu = POWERPC_CPU(cs); + CPUPPCState *env = &cpu->env; + struct kvm_one_reg reg; + int i; + int ret; + + if (env->insns_flags & PPC_FLOAT) { + uint64_t fpscr = env->fpscr; + bool vsx = !!(env->insns_flags2 & PPC2_VSX); + + reg.id = KVM_REG_PPC_FPSCR; + reg.addr = (uintptr_t)&fpscr; + ret = kvm_vcpu_ioctl(cs, KVM_SET_ONE_REG, ®); + if (ret < 0) { + dprintf("Unable to set FPSCR to KVM: %s\n", strerror(errno)); + return ret; + } + + for (i = 0; i < 32; i++) { + uint64_t vsr[2]; + + vsr[0] = float64_val(env->fpr[i]); + vsr[1] = env->vsr[i]; + reg.addr = (uintptr_t) &vsr; + reg.id = vsx ? KVM_REG_PPC_VSR(i) : KVM_REG_PPC_FPR(i); + + ret = kvm_vcpu_ioctl(cs, KVM_SET_ONE_REG, ®); + if (ret < 0) { + dprintf("Unable to set %s%d to KVM: %s\n", vsx ? "VSR" : "FPR", + i, strerror(errno)); + return ret; + } + } + } + + if (env->insns_flags & PPC_ALTIVEC) { + reg.id = KVM_REG_PPC_VSCR; + reg.addr = (uintptr_t)&env->vscr; + ret = kvm_vcpu_ioctl(cs, KVM_SET_ONE_REG, ®); + if (ret < 0) { + dprintf("Unable to set VSCR to KVM: %s\n", strerror(errno)); + return ret; + } + + for (i = 0; i < 32; i++) { + reg.id = KVM_REG_PPC_VR(i); + reg.addr = (uintptr_t)&env->avr[i]; + ret = kvm_vcpu_ioctl(cs, KVM_SET_ONE_REG, ®); + if (ret < 0) { + dprintf("Unable to set VR%d to KVM: %s\n", i, strerror(errno)); + return ret; + } + } + } + + return 0; +} + +static int kvm_get_fp(CPUState *cs) +{ + PowerPCCPU *cpu = POWERPC_CPU(cs); + CPUPPCState *env = &cpu->env; + struct kvm_one_reg reg; + int i; + int ret; + + if (env->insns_flags & PPC_FLOAT) { + uint64_t fpscr; + bool vsx = !!(env->insns_flags2 & PPC2_VSX); + + reg.id = KVM_REG_PPC_FPSCR; + reg.addr = (uintptr_t)&fpscr; + ret = kvm_vcpu_ioctl(cs, KVM_GET_ONE_REG, ®); + if (ret < 0) { + dprintf("Unable to get FPSCR from KVM: %s\n", strerror(errno)); + return ret; + } else { + env->fpscr = fpscr; + } + + for (i = 0; i < 32; i++) { + uint64_t vsr[2]; + + reg.addr = (uintptr_t) &vsr; + reg.id = vsx ? KVM_REG_PPC_VSR(i) : KVM_REG_PPC_FPR(i); + + ret = kvm_vcpu_ioctl(cs, KVM_GET_ONE_REG, ®); + if (ret < 0) { + dprintf("Unable to get %s%d from KVM: %s\n", + vsx ? "VSR" : "FPR", i, strerror(errno)); + return ret; + } else { + env->fpr[i] = vsr[0]; + if (vsx) { + env->vsr[i] = vsr[1]; + } + } + } + } + + if (env->insns_flags & PPC_ALTIVEC) { + reg.id = KVM_REG_PPC_VSCR; + reg.addr = (uintptr_t)&env->vscr; + ret = kvm_vcpu_ioctl(cs, KVM_GET_ONE_REG, ®); + if (ret < 0) { + dprintf("Unable to get VSCR from KVM: %s\n", strerror(errno)); + return ret; + } + + for (i = 0; i < 32; i++) { + reg.id = KVM_REG_PPC_VR(i); + reg.addr = (uintptr_t)&env->avr[i]; + ret = kvm_vcpu_ioctl(cs, KVM_GET_ONE_REG, ®); + if (ret < 0) { + dprintf("Unable to get VR%d from KVM: %s\n", + i, strerror(errno)); + return ret; + } + } + } + + return 0; +} + int kvm_arch_put_registers(CPUState *cs, int level) { PowerPCCPU *cpu = POWERPC_CPU(cs); @@ -561,6 +687,8 @@ int kvm_arch_put_registers(CPUState *cs, int level) if (ret < 0) return ret; + kvm_put_fp(cs); + if (env->tlb_dirty) { kvm_sw_tlb_put(cpu); env->tlb_dirty = false; @@ -666,6 +794,8 @@ int kvm_arch_get_registers(CPUState *cs) for (i = 0;i < 32; i++) env->gpr[i] = regs.gpr[i]; + kvm_get_fp(cs); + if (cap_booke_sregs) { ret = kvm_vcpu_ioctl(cs, KVM_GET_SREGS, &sregs); if (ret < 0) {