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qemu: refactor tcg cpu execution loop (Marcelo Tosatti)

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Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>


git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@7246 c046a42c-6fe2-441c-8c8c-71466251a162
This commit is contained in:
aliguori 2009-04-24 18:03:57 +00:00
parent e568902a02
commit e6e35b1ea3
1 changed files with 29 additions and 24 deletions
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53
vl.c
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@ -3951,6 +3951,30 @@ static int qemu_cpu_exec(CPUState *env)
return ret; return ret;
} }
static void tcg_cpu_exec(void)
{
int ret;
if (next_cpu == NULL)
next_cpu = first_cpu;
for (; next_cpu != NULL; next_cpu = next_cpu->next_cpu) {
CPUState *env = cur_cpu = next_cpu;
if (!vm_running)
break;
if (timer_alarm_pending) {
timer_alarm_pending = 0;
break;
}
ret = qemu_cpu_exec(env);
if (ret == EXCP_DEBUG) {
gdb_set_stop_cpu(env);
debug_requested = 1;
break;
}
}
}
static int cpu_has_work(CPUState *env) static int cpu_has_work(CPUState *env)
{ {
if (!env->halted) if (!env->halted)
@ -4034,31 +4058,13 @@ static int vm_can_run(void)
static void main_loop(void) static void main_loop(void)
{ {
int ret = 0;
#ifdef CONFIG_PROFILER
int64_t ti;
#endif
for (;;) { for (;;) {
do {
if (next_cpu == NULL)
next_cpu = first_cpu;
for (; next_cpu != NULL; next_cpu = next_cpu->next_cpu) {
CPUState *env = cur_cpu = next_cpu;
if (!vm_running) do {
break; #ifdef CONFIG_PROFILER
if (timer_alarm_pending) { int64_t ti;
timer_alarm_pending = 0; #endif
break; tcg_cpu_exec();
}
ret = qemu_cpu_exec(env);
if (ret == EXCP_DEBUG) {
gdb_set_stop_cpu(env);
debug_requested = 1;
break;
}
}
#ifdef CONFIG_PROFILER #ifdef CONFIG_PROFILER
ti = profile_getclock(); ti = profile_getclock();
#endif #endif
@ -4068,7 +4074,6 @@ static void main_loop(void)
#endif #endif
} while (vm_can_run()); } while (vm_can_run());
if (qemu_debug_requested()) if (qemu_debug_requested())
vm_stop(EXCP_DEBUG); vm_stop(EXCP_DEBUG);
if (qemu_shutdown_requested()) { if (qemu_shutdown_requested()) {