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spapr_rtas: Abstract rtas_start_cpu() with qemu_get_cpu()

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Instead of looping over all CPUArchState, use a helper to obtain the
desired CPUState.
Free the "cpu" variable for PowerPCCPU, to access its CPUPPCState.

Signed-off-by: Andreas Färber <afaerber@suse.de>
This commit is contained in:
Andreas Färber 2013-05-29 21:06:39 +02:00
parent 05318a858c
commit c67e216bdf
1 changed files with 8 additions and 11 deletions
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19
hw/ppc/spapr_rtas.c
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@ -160,8 +160,7 @@ static void rtas_start_cpu(sPAPREnvironment *spapr,
uint32_t nret, target_ulong rets)
{
target_ulong id, start, r3;
CPUState *cpu;
CPUPPCState *env;
CPUState *cs;
if (nargs != 3 || nret != 1) {
rtas_st(rets, 0, -3);
@ -172,14 +171,12 @@ static void rtas_start_cpu(sPAPREnvironment *spapr,
start = rtas_ld(args, 1);
r3 = rtas_ld(args, 2);
for (env = first_cpu; env; env = env->next_cpu) {
cpu = CPU(ppc_env_get_cpu(env));
cs = qemu_get_cpu(id);
if (cs != NULL) {
PowerPCCPU *cpu = POWERPC_CPU(cs);
CPUPPCState *env = &cpu->env;
if (cpu->cpu_index != id) {
continue;
}
if (!cpu->halted) {
if (!cs->halted) {
rtas_st(rets, 0, -1);
return;
}
@ -192,9 +189,9 @@ static void rtas_start_cpu(sPAPREnvironment *spapr,
env->msr = (1ULL << MSR_SF) | (1ULL << MSR_ME);
env->nip = start;
env->gpr[3] = r3;
cpu->halted = 0;
cs->halted = 0;
qemu_cpu_kick(cpu);
qemu_cpu_kick(cs);
rtas_st(rets, 0, 0);
return;