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cpu: hook plugin vcpu events

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Signed-off-by: Emilio G. Cota <cota@braap.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
This commit is contained in:
Emilio G. Cota 2018-10-21 13:30:35 -04:00 • committed by Alex Bennée
parent c36f7a642c
commit 30865f3168
3 changed files with 14 additions and 0 deletions
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10
cpus.c
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@ -45,6 +45,7 @@
#include "exec/exec-all.h"
#include "qemu/thread.h"
#include "qemu/plugin.h"
#include "sysemu/cpus.h"
#include "sysemu/qtest.h"
#include "qemu/main-loop.h"
@ -1264,9 +1265,18 @@ static void qemu_tcg_rr_wait_io_event(void)
static void qemu_wait_io_event(CPUState *cpu)
{
bool slept = false;
while (cpu_thread_is_idle(cpu)) {
if (!slept) {
slept = true;
qemu_plugin_vcpu_idle_cb(cpu);
}
qemu_cond_wait(cpu->halt_cond, &qemu_global_mutex);
}
if (slept) {
qemu_plugin_vcpu_resume_cb(cpu);
}
#ifdef _WIN32
/* Eat dummy APC queued by qemu_cpu_kick_thread. */