int kvm_arch_put_registers(CPUState *cs, int level) { S390CPU *cpu = S390_CPU(cs); CPUS390XState *env = &cpu->env; struct kvm_sregs sregs; struct kvm_regs regs; struct kvm_fpu fpu; int r; int i; /* always save the PSW and the GPRS*/ cs->kvm_run->psw_addr = env->psw.addr; cs->kvm_run->psw_mask = env->psw.mask; if (cap_sync_regs && cs->kvm_run->kvm_valid_regs & KVM_SYNC_GPRS) { for (i = 0; i < 16; i++) { cs->kvm_run->s.regs.gprs[i] = env->regs[i]; cs->kvm_run->kvm_dirty_regs |= KVM_SYNC_GPRS; } } else { for (i = 0; i < 16; i++) { regs.gprs[i] = env->regs[i]; } r = kvm_vcpu_ioctl(cs, KVM_SET_REGS, &regs); if (r < 0) { return r; } } /* Floating point */ for (i = 0; i < 16; i++) { fpu.fprs[i] = env->fregs[i].ll; } fpu.fpc = env->fpc; r = kvm_vcpu_ioctl(cs, KVM_SET_FPU, &fpu); if (r < 0) { return r; } /* Do we need to save more than that? */ if (level == KVM_PUT_RUNTIME_STATE) { return 0; } /* * These ONE_REGS are not protected by a capability. As they are only * necessary for migration we just trace a possible error, but don't * return with an error return code. */ kvm_set_one_reg(cs, KVM_REG_S390_CPU_TIMER, &env->cputm); kvm_set_one_reg(cs, KVM_REG_S390_CLOCK_COMP, &env->ckc); kvm_set_one_reg(cs, KVM_REG_S390_TODPR, &env->todpr); kvm_set_one_reg(cs, KVM_REG_S390_GBEA, &env->gbea); kvm_set_one_reg(cs, KVM_REG_S390_PP, &env->pp); if (cap_async_pf) { r = kvm_set_one_reg(cs, KVM_REG_S390_PFTOKEN, &env->pfault_token); if (r < 0) { return r; } r = kvm_set_one_reg(cs, KVM_REG_S390_PFCOMPARE, &env->pfault_compare); if (r < 0) { return r; } r = kvm_set_one_reg(cs, KVM_REG_S390_PFSELECT, &env->pfault_select); if (r < 0) { return r; } } if (cap_sync_regs && cs->kvm_run->kvm_valid_regs & KVM_SYNC_ACRS && cs->kvm_run->kvm_valid_regs & KVM_SYNC_CRS) { for (i = 0; i < 16; i++) { cs->kvm_run->s.regs.acrs[i] = env->aregs[i]; cs->kvm_run->s.regs.crs[i] = env->cregs[i]; } cs->kvm_run->kvm_dirty_regs |= KVM_SYNC_ACRS; cs->kvm_run->kvm_dirty_regs |= KVM_SYNC_CRS; } else { for (i = 0; i < 16; i++) { sregs.acrs[i] = env->aregs[i]; sregs.crs[i] = env->cregs[i]; } r = kvm_vcpu_ioctl(cs, KVM_SET_SREGS, &sregs); if (r < 0) { return r; } } /* Finally the prefix */ if (cap_sync_regs && cs->kvm_run->kvm_valid_regs & KVM_SYNC_PREFIX) { cs->kvm_run->s.regs.prefix = env->psa; cs->kvm_run->kvm_dirty_regs |= KVM_SYNC_PREFIX; } else { /* prefix is only supported via sync regs */ } return 0; }