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cpu: Make first_cpu and next_cpu CPUState

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Move next_cpu from CPU_COMMON to CPUState.
Move first_cpu variable to qom/cpu.h.

gdbstub needs to use CPUState::env_ptr for now.
cpu_copy() no longer needs to save and restore cpu_next.

Acked-by: Paolo Bonzini <pbonzini@redhat.com>
[AF: Rebased, simplified cpu_copy()]
Signed-off-by: Andreas Färber <afaerber@suse.de>
This commit is contained in:
Andreas Färber 2013-05-29 22:29:20 +02:00
parent 9b056fcc5b
commit 182735efaf
39 changed files with 266 additions and 234 deletions
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8
linux-user/main.c
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@ -120,8 +120,8 @@ void fork_end(int child)
if (child) {
/* Child processes created by fork() only have a single thread.
Discard information about the parent threads. */
first_cpu = thread_env;
thread_env->next_cpu = NULL;
first_cpu = ENV_GET_CPU(thread_env);
first_cpu->next_cpu = NULL;
pending_cpus = 0;
pthread_mutex_init(&exclusive_lock, NULL);
pthread_mutex_init(&cpu_list_mutex, NULL);
@ -148,7 +148,6 @@ static inline void exclusive_idle(void)
Must only be called from outside cpu_arm_exec. */
static inline void start_exclusive(void)
{
CPUArchState *other;
CPUState *other_cpu;
pthread_mutex_lock(&exclusive_lock);
@ -156,8 +155,7 @@ static inline void start_exclusive(void)
pending_cpus = 1;
/* Make all other cpus stop executing. */
for (other = first_cpu; other; other = other->next_cpu) {
other_cpu = ENV_GET_CPU(other);
for (other_cpu = first_cpu; other_cpu; other_cpu = other_cpu->next_cpu) {
if (other_cpu->running) {
pending_cpus++;
cpu_exit(other_cpu);