diff options
Diffstat (limited to 'balloon.c')
| -rw-r--r-- | balloon.c | 72 |
1 files changed, 14 insertions, 58 deletions
@@ -25,12 +25,11 @@ */ #include "monitor.h" -#include "qjson.h" -#include "qint.h" #include "cpu-common.h" #include "kvm.h" #include "balloon.h" #include "trace.h" +#include "qmp-commands.h" static QEMUBalloonEvent *balloon_event_fn; static QEMUBalloonStatus *balloon_stat_fn; @@ -72,76 +71,33 @@ static int qemu_balloon(ram_addr_t target) return 1; } -static int qemu_balloon_status(MonitorCompletion cb, void *opaque) +static int qemu_balloon_status(BalloonInfo *info) { if (!balloon_stat_fn) { return 0; } - balloon_stat_fn(balloon_opaque, cb, opaque); + balloon_stat_fn(balloon_opaque, info); return 1; } -static void print_balloon_stat(const char *key, QObject *obj, void *opaque) +BalloonInfo *qmp_query_balloon(Error **errp) { - Monitor *mon = opaque; - - if (strcmp(key, "actual")) { - monitor_printf(mon, ",%s=%" PRId64, key, - qint_get_int(qobject_to_qint(obj))); - } -} - -void monitor_print_balloon(Monitor *mon, const QObject *data) -{ - QDict *qdict; - - qdict = qobject_to_qdict(data); - if (!qdict_haskey(qdict, "actual")) { - return; - } - monitor_printf(mon, "balloon: actual=%" PRId64, - qdict_get_int(qdict, "actual") >> 20); - qdict_iter(qdict, print_balloon_stat, mon); - monitor_printf(mon, "\n"); -} - -/** - * do_info_balloon(): Balloon information - * - * Make an asynchronous request for balloon info. When the request completes - * a QDict will be returned according to the following specification: - * - * - "actual": current balloon value in bytes - * The following fields may or may not be present: - * - "mem_swapped_in": Amount of memory swapped in (bytes) - * - "mem_swapped_out": Amount of memory swapped out (bytes) - * - "major_page_faults": Number of major faults - * - "minor_page_faults": Number of minor faults - * - "free_mem": Total amount of free and unused memory (bytes) - * - "total_mem": Total amount of available memory (bytes) - * - * Example: - * - * { "actual": 1073741824, "mem_swapped_in": 0, "mem_swapped_out": 0, - * "major_page_faults": 142, "minor_page_faults": 239245, - * "free_mem": 1014185984, "total_mem": 1044668416 } - */ -int do_info_balloon(Monitor *mon, MonitorCompletion cb, void *opaque) -{ - int ret; + BalloonInfo *info; if (kvm_enabled() && !kvm_has_sync_mmu()) { - qerror_report(QERR_KVM_MISSING_CAP, "synchronous MMU", "balloon"); - return -1; + error_set(errp, QERR_KVM_MISSING_CAP, "synchronous MMU", "balloon"); + return NULL; } - ret = qemu_balloon_status(cb, opaque); - if (!ret) { - qerror_report(QERR_DEVICE_NOT_ACTIVE, "balloon"); - return -1; + info = g_malloc0(sizeof(*info)); + + if (qemu_balloon_status(info) == 0) { + error_set(errp, QERR_DEVICE_NOT_ACTIVE, "balloon"); + qapi_free_BalloonInfo(info); + return NULL; } - return 0; + return info; } /** |