diff options
| -rw-r--r-- | cpus.c | 29 | ||||
| -rw-r--r-- | include/qemu-common.h | 1 | ||||
| -rw-r--r-- | include/qom/cpu.h | 10 |
3 files changed, 40 insertions, 0 deletions
@@ -648,6 +648,7 @@ void run_on_cpu(CPUState *cpu, void (*func)(void *data), void *data) wi.func = func; wi.data = data; + wi.free = false; if (cpu->queued_work_first == NULL) { cpu->queued_work_first = &wi; } else { @@ -666,6 +667,31 @@ void run_on_cpu(CPUState *cpu, void (*func)(void *data), void *data) } } +void async_run_on_cpu(CPUState *cpu, void (*func)(void *data), void *data) +{ + struct qemu_work_item *wi; + + if (qemu_cpu_is_self(cpu)) { + func(data); + return; + } + + wi = g_malloc0(sizeof(struct qemu_work_item)); + wi->func = func; + wi->data = data; + wi->free = true; + if (cpu->queued_work_first == NULL) { + cpu->queued_work_first = wi; + } else { + cpu->queued_work_last->next = wi; + } + cpu->queued_work_last = wi; + wi->next = NULL; + wi->done = false; + + qemu_cpu_kick(cpu); +} + static void flush_queued_work(CPUState *cpu) { struct qemu_work_item *wi; @@ -678,6 +704,9 @@ static void flush_queued_work(CPUState *cpu) cpu->queued_work_first = wi->next; wi->func(wi->data); wi->done = true; + if (wi->free) { + g_free(wi); + } } cpu->queued_work_last = NULL; qemu_cond_broadcast(&qemu_work_cond); diff --git a/include/qemu-common.h b/include/qemu-common.h index f4397388f5..6948bb9177 100644 --- a/include/qemu-common.h +++ b/include/qemu-common.h @@ -293,6 +293,7 @@ struct qemu_work_item { void (*func)(void *data); void *data; int done; + bool free; }; diff --git a/include/qom/cpu.h b/include/qom/cpu.h index 147c256949..dfd81a1d2f 100644 --- a/include/qom/cpu.h +++ b/include/qom/cpu.h @@ -379,6 +379,16 @@ bool cpu_is_stopped(CPUState *cpu); void run_on_cpu(CPUState *cpu, void (*func)(void *data), void *data); /** + * async_run_on_cpu: + * @cpu: The vCPU to run on. + * @func: The function to be executed. + * @data: Data to pass to the function. + * + * Schedules the function @func for execution on the vCPU @cpu asynchronously. + */ +void async_run_on_cpu(CPUState *cpu, void (*func)(void *data), void *data); + +/** * qemu_for_each_cpu: * @func: The function to be executed. * @data: Data to pass to the function. |