static void rtas_query_cpu_stopped_state(PowerPCCPU *cpu_,
sPAPREnvironment *spapr,
uint32_t token, uint32_t nargs,
target_ulong args,
uint32_t nret, target_ulong rets)
{
target_ulong id;
PowerPCCPU *cpu;
if (nargs != 1 || nret != 2) {
rtas_st(rets, 0, RTAS_OUT_PARAM_ERROR);
return;
}
id = rtas_ld(args, 0);
cpu = ppc_get_vcpu_by_dt_id(id);
if (cpu != NULL) {
if (CPU(cpu)->halted) {
rtas_st(rets, 1, 0);
} else {
rtas_st(rets, 1, 2);
}
rtas_st(rets, 0, RTAS_OUT_SUCCESS);
return;
}
/* Didn't find a matching cpu */
rtas_st(rets, 0, RTAS_OUT_PARAM_ERROR);
}
static int get_cpu_index_by_dt_id(int cpu_dt_id)
{
PowerPCCPU *cpu = ppc_get_vcpu_by_dt_id(cpu_dt_id);
if (cpu) {
return cpu->parent_obj.cpu_index;
}
return -1;
}
static void rtas_start_cpu(PowerPCCPU *cpu_, sPAPREnvironment *spapr,
uint32_t token, uint32_t nargs,
target_ulong args,
uint32_t nret, target_ulong rets)
{
target_ulong id, start, r3;
PowerPCCPU *cpu;
if (nargs != 3 || nret != 1) {
rtas_st(rets, 0, RTAS_OUT_PARAM_ERROR);
return;
}
id = rtas_ld(args, 0);
start = rtas_ld(args, 1);
r3 = rtas_ld(args, 2);
cpu = ppc_get_vcpu_by_dt_id(id);
if (cpu != NULL) {
CPUState *cs = CPU(cpu);
CPUPPCState *env = &cpu->env;
if (!cs->halted) {
rtas_st(rets, 0, RTAS_OUT_HW_ERROR);
return;
}
/* This will make sure qemu state is up to date with kvm, and
* mark it dirty so our changes get flushed back before the
* new cpu enters */
kvm_cpu_synchronize_state(cs);
env->msr = (1ULL << MSR_SF) | (1ULL << MSR_ME);
env->nip = start;
env->gpr[3] = r3;
cs->halted = 0;
qemu_cpu_kick(cs);
rtas_st(rets, 0, RTAS_OUT_SUCCESS);
return;
}
/* Didn't find a matching cpu */
rtas_st(rets, 0, RTAS_OUT_PARAM_ERROR);
}
