提交 cfdf2c40 编写于 作者: L Luiz Capitulino 提交者: Anthony Liguori

monitor: do_balloon(): Check for errors

do_balloon() should check for ballooning availability as
do_info_balloon() does.

Noted by Daniel P. Berrange <berrange@redhat.com>.
Signed-off-by: NLuiz Capitulino <lcapitulino@redhat.com>
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>
上级 78d714e0
......@@ -2053,14 +2053,34 @@ static void do_info_status(Monitor *mon, QObject **ret_data)
vm_running, singlestep);
}
static ram_addr_t balloon_get_value(void)
{
ram_addr_t actual;
if (kvm_enabled() && !kvm_has_sync_mmu()) {
qemu_error_new(QERR_KVM_MISSING_CAP, "synchronous MMU", "balloon");
return 0;
}
actual = qemu_balloon_status();
if (actual == 0) {
qemu_error_new(QERR_DEVICE_NOT_ACTIVE, "balloon");
return 0;
}
return actual;
}
/**
* do_balloon(): Request VM to change its memory allocation
*/
static void do_balloon(Monitor *mon, const QDict *qdict, QObject **ret_data)
{
int value = qdict_get_int(qdict, "value");
ram_addr_t target = value;
qemu_balloon(target << 20);
if (balloon_get_value()) {
/* ballooning is active */
ram_addr_t value = qdict_get_int(qdict, "value");
qemu_balloon(value << 20);
}
}
static void monitor_print_balloon(Monitor *mon, const QObject *data)
......@@ -2088,14 +2108,11 @@ static void do_info_balloon(Monitor *mon, QObject **ret_data)
{
ram_addr_t actual;
actual = qemu_balloon_status();
if (kvm_enabled() && !kvm_has_sync_mmu())
qemu_error_new(QERR_KVM_MISSING_CAP, "synchronous MMU", "balloon");
else if (actual == 0)
qemu_error_new(QERR_DEVICE_NOT_ACTIVE, "balloon");
else
actual = balloon_get_value();
if (actual != 0) {
*ret_data = qobject_from_jsonf("{ 'balloon': %" PRId64 "}",
(int64_t) actual);
}
}
static qemu_acl *find_acl(Monitor *mon, const char *name)
......
Markdown is supported
0% .
You are about to add 0 people to the discussion. Proceed with caution.
先完成此消息的编辑!
想要评论请 注册