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[Qemu-devel] [7246] qemu: refactor tcg cpu execution loop (Marcelo Tosat
From: |
Anthony Liguori |
Subject: |
[Qemu-devel] [7246] qemu: refactor tcg cpu execution loop (Marcelo Tosatti) |
Date: |
Fri, 24 Apr 2009 18:03:57 +0000 |
Revision: 7246
http://svn.sv.gnu.org/viewvc/?view=rev&root=qemu&revision=7246
Author: aliguori
Date: 2009-04-24 18:03:57 +0000 (Fri, 24 Apr 2009)
Log Message:
-----------
qemu: refactor tcg cpu execution loop (Marcelo Tosatti)
Signed-off-by: Marcelo Tosatti <address@hidden>
Signed-off-by: Anthony Liguori <address@hidden>
Modified Paths:
--------------
trunk/vl.c
Modified: trunk/vl.c
===================================================================
--- trunk/vl.c 2009-04-24 18:03:54 UTC (rev 7245)
+++ trunk/vl.c 2009-04-24 18:03:57 UTC (rev 7246)
@@ -3951,6 +3951,30 @@
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)
{
if (!env->halted)
@@ -4034,32 +4058,14 @@
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)
- 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;
- }
- }
#ifdef CONFIG_PROFILER
+ int64_t ti;
+#endif
+ tcg_cpu_exec();
+#ifdef CONFIG_PROFILER
ti = profile_getclock();
#endif
main_loop_wait(qemu_calculate_timeout());
@@ -4068,7 +4074,6 @@
#endif
} while (vm_can_run());
-
if (qemu_debug_requested())
vm_stop(EXCP_DEBUG);
if (qemu_shutdown_requested()) {
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