[PATCH 1/5] Support for vm_stop from the migration thread

Umesh Deshpande
2011-08-27T18:09:44Z

Currently, when any thread other than iothread calls vm_stop, it is scheduled to
be executed later by the iothread. This patch allows the execution of vm_stop
from threads other than iothread. This is especially helpful when the migration is
moved into a separate thread.

Signed-off-by: Umesh Deshpande <udeshpan@redhat.com>
---
cpus.c | 4 ++--
1 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/cpus.c b/cpus.c
index de70e02..f35f683 100644
--- a/cpus.c
+++ b/cpus.c
@@ -122,8 +122,8 @@ static void do_vm_stop(int reason)
{
if (vm_running) {
cpu_disable_ticks();
- vm_running = 0;
pause_all_vcpus();
+ vm_running = 0;
vm_state_notify(0, reason);
qemu_aio_flush();
bdrv_flush_all();
@@ -1027,7 +1027,7 @@ void cpu_stop_current(void)

void vm_stop(int reason)
{
- if (!qemu_thread_is_self(&io_thread)) {
+ if (cpu_single_env) {
qemu_system_vmstop_request(reason);
/*
* FIXME: should not return to device code in case
--
1.7.4.1