[libvirt] [PATCHv2 07/11] qemu: bulk stats: implement balloon group
This patch implements the VIR_DOMAIN_STATS_BALLOON
group of statistics.
Signed-off-by: Francesco Romani <fromani(a)redhat.com>
---
include/libvirt/libvirt.h.in | 1 +
src/libvirt.c | 4 ++++
src/qemu/qemu_driver.c | 32 ++++++++++++++++++++++++++++++++
3 files changed, 37 insertions(+)
diff --git a/include/libvirt/libvirt.h.in b/include/libvirt/libvirt.h.in
index 69ad152..7ec57cd 100644
--- a/include/libvirt/libvirt.h.in
+++ b/include/libvirt/libvirt.h.in
@@ -2512,6 +2512,7 @@ struct _virDomainStatsRecord {
typedef enum {
VIR_DOMAIN_STATS_STATE = (1 << 0), /* return domain state */
VIR_DOMAIN_STATS_CPU_TOTAL = (1 << 1), /* return domain CPU info */
+ VIR_DOMAIN_STATS_BALLOON = (1 << 2), /* return domain balloon info */
} virDomainStatsTypes;
typedef enum {
diff --git a/src/libvirt.c b/src/libvirt.c
index c6556ea..8b0f589 100644
--- a/src/libvirt.c
+++ b/src/libvirt.c
@@ -21553,6 +21553,10 @@ virConnectGetDomainCapabilities(virConnectPtr conn,
* "cpu.user" - user cpu time spent
* "cpu.system" - system cpu time spent
*
+ * VIR_DOMAIN_STATS_BALLOON: Return memory balloon device informations.
+ * The typed parameter keys are in this format:
+ * "balloon.current" - the memory in KBytes currently used
+ * "balloon.maximum" - the maximum memory in KBytes allowed
*
* Using 0 for @stats returns all stats groups supported by the given
* hypervisor.
diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c
index 2ced593..98f1a31 100644
--- a/src/qemu/qemu_driver.c
+++ b/src/qemu/qemu_driver.c
@@ -17359,6 +17359,37 @@ qemuDomainGetStatsCpu(virConnectPtr conn ATTRIBUTE_UNUSED,
return 0;
}
+static int
+qemuDomainGetStatsBalloon(virConnectPtr conn,
+ virDomainObjPtr dom,
+ virDomainStatsRecordPtr record,
+ int *maxparams,
+ unsigned int privflags ATTRIBUTE_UNUSED)
+{
+ virQEMUDriverPtr driver = conn->privateData;
+ unsigned long cur_balloon = 0;
+ int err = 0;
+
+ err = qemuDomainGetBalloonMemory(driver, dom, &cur_balloon);
+ if (err)
+ return -1;
+
+ if (virTypedParamsAddULLong(&record->params,
+ &record->nparams,
+ maxparams,
+ "balloon.current",
+ cur_balloon) < 0)
+ return -1;
+
+ if (virTypedParamsAddULLong(&record->params,
+ &record->nparams,
+ maxparams,
+ "balloon.maximum",
+ dom->def->mem.max_balloon) < 0)
+ return -1;
+
+ return 0;
+}
typedef int
(*qemuDomainGetStatsFunc)(virConnectPtr conn,
@@ -17375,6 +17406,7 @@ struct qemuDomainGetStatsWorker {
static struct qemuDomainGetStatsWorker qemuDomainGetStatsWorkers[] = {
{ qemuDomainGetStatsState, VIR_DOMAIN_STATS_STATE},
{ qemuDomainGetStatsCpu, VIR_DOMAIN_STATS_CPU_TOTAL },
+ { qemuDomainGetStatsBalloon, VIR_DOMAIN_STATS_BALLOON },
{ NULL, 0 }
};
--
1.9.3