* src/qemu/qemu_driver.c: implement the qemu driver support
---
src/qemu/qemu_driver.c | 353 ++++++++++++++++++++++++++++++++++++++++++++++++
1 files changed, 353 insertions(+), 0 deletions(-)
diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c
index a840c1f..c04a5de 100644
--- a/src/qemu/qemu_driver.c
+++ b/src/qemu/qemu_driver.c
@@ -119,6 +119,8 @@
#define QEMU_NB_BLKIO_PARAM 2
+#define QEMU_NB_BANDWIDTH_PARAM 6
+
static void processWatchdogEvent(void *data, void *opaque);
static int qemudShutdown(void);
@@ -7852,6 +7854,355 @@ qemudDomainInterfaceStats (virDomainPtr dom,
#endif
static int
+qemuDomainSetInterfaceParameters(virDomainPtr dom,
+ const char *device,
+ virTypedParameterPtr params,
+ int nparams,
+ unsigned int flags)
+{
+ struct qemud_driver *driver = dom->conn->privateData;
+ int i;
+ virCgroupPtr group = NULL;
+ virDomainObjPtr vm = NULL;
+ virDomainDefPtr persistentDef = NULL;
+ int ret = -1;
+ virDomainNetDefPtr net = NULL, persistentNet = NULL;
+ virNetDevBandwidthPtr bandwidth;
+
+ virCheckFlags(VIR_DOMAIN_AFFECT_LIVE |
+ VIR_DOMAIN_AFFECT_CONFIG, -1);
+ qemuDriverLock(driver);
+
+ vm = virDomainFindByUUID(&driver->domains, dom->uuid);
+
+ if (vm == NULL) {
+ qemuReportError(VIR_ERR_INTERNAL_ERROR,
+ _("No such domain %s"), dom->uuid);
+ goto cleanup;
+ }
+
+ if (virDomainLiveConfigHelperMethod(driver->caps, vm, &flags,
+ &persistentDef) < 0)
+ goto cleanup;
+
+ if (flags & VIR_DOMAIN_AFFECT_LIVE) {
+ net = virDomainNetFind(vm->def, device);
+ if (!net) {
+ qemuReportError(VIR_ERR_INVALID_ARG,
+ _("Can't find device %s"), device);
+ goto cleanup;
+ }
+ }
+ if (flags & VIR_DOMAIN_AFFECT_CONFIG) {
+ persistentNet = virDomainNetFind(persistentDef, device);
+ if (!persistentNet) {
+ qemuReportError(VIR_ERR_INVALID_ARG,
+ _("Can't find device %s"), device);
+ ret = -1;
+ goto cleanup;
+ }
+ }
+
+ if (VIR_ALLOC(bandwidth) < 0) {
+ virReportOOMError();
+ goto cleanup;
+ }
+ if (VIR_ALLOC(bandwidth->in) < 0) {
+ virReportOOMError();
+ goto cleanup;
+ }
+ memset(bandwidth->in, 0, sizeof(*bandwidth->in));
+ if (VIR_ALLOC(bandwidth->out) < 0) {
+ virReportOOMError();
+ goto cleanup;
+ }
+ memset(bandwidth->out, 0, sizeof(*bandwidth->out));
+
+ for (i = 0; i < nparams; i++) {
+ virTypedParameterPtr param = ¶ms[i];
+
+ if (STREQ(param->field, VIR_DOMAIN_BANDWIDTH_IN_AVERAGE)) {
+ if (param->type != VIR_TYPED_PARAM_UINT) {
+ qemuReportError(VIR_ERR_INVALID_ARG, "%s",
+ _("invalid type for bandwidth average tunable, expected a 'unsigned int'"));
+ goto cleanup;
+ }
+
+ bandwidth->in->average = params[i].value.ui;
+ } else if (STREQ(param->field, VIR_DOMAIN_BANDWIDTH_IN_PEAK)) {
+ if (param->type != VIR_TYPED_PARAM_UINT) {
+ qemuReportError(VIR_ERR_INVALID_ARG, "%s",
+ _("invalid type for bandwidth peak tunable, expected a 'unsigned int'"));
+ goto cleanup;
+ }
+
+ bandwidth->in->peak = params[i].value.ui;
+ } else if (STREQ(param->field, VIR_DOMAIN_BANDWIDTH_IN_BURST)) {
+ if (param->type != VIR_TYPED_PARAM_UINT) {
+ qemuReportError(VIR_ERR_INVALID_ARG, "%s",
+ _("invalid type for bandwidth burst tunable, expected a 'unsigned int'"));
+ goto cleanup;
+ }
+
+ bandwidth->in->burst = params[i].value.ui;
+ } else if (STREQ(param->field, VIR_DOMAIN_BANDWIDTH_OUT_AVERAGE)) {
+ if (param->type != VIR_TYPED_PARAM_UINT) {
+ qemuReportError(VIR_ERR_INVALID_ARG, "%s",
+ _("invalid type for bandwidth average tunable, expected a 'unsigned int'"));
+ goto cleanup;
+ }
+
+ bandwidth->out->average = params[i].value.ui;
+ } else if (STREQ(param->field, VIR_DOMAIN_BANDWIDTH_OUT_PEAK)) {
+ if (param->type != VIR_TYPED_PARAM_UINT) {
+ qemuReportError(VIR_ERR_INVALID_ARG, "%s",
+ _("invalid type for bandwidth peak tunable, expected a 'unsigned int'"));
+ goto cleanup;
+ }
+
+ bandwidth->out->peak = params[i].value.ui;
+ } else if (STREQ(param->field, VIR_DOMAIN_BANDWIDTH_OUT_BURST)) {
+ if (param->type != VIR_TYPED_PARAM_UINT) {
+ qemuReportError(VIR_ERR_INVALID_ARG, "%s",
+ _("invalid type for bandwidth burst tunable, expected a 'unsigned int'"));
+ goto cleanup;
+ }
+
+ bandwidth->out->burst = params[i].value.ui;
+ } else {
+ qemuReportError(VIR_ERR_INVALID_ARG,
+ _("Parameter `%s' not supported"),
+ param->field);
+ goto cleanup;
+ }
+ }
+
+ /* average is mandatory, peak and burst is optional. So if no
+ * average is given, we free inbound/outbound here which causes
+ * inbound/outbound won't be set. */
+ if (!bandwidth->in->average)
+ VIR_FREE(bandwidth->in);
+ if (!bandwidth->out->average)
+ VIR_FREE(bandwidth->out);
+
+ if (flags & VIR_DOMAIN_AFFECT_LIVE) {
+ virNetDevBandwidthPtr newBandwidth;
+
+ if (VIR_ALLOC(newBandwidth) < 0) {
+ virReportOOMError();
+ goto cleanup;
+ }
+
+ memset(newBandwidth, 0, sizeof(newBandwidth));
+
+ /* virNetDevBandwidthSet() will clear any previous value of
+ * bandwidth parameters, so merge with old bandwidth parameters
+ * here to prevent them from losing. */
+ if (bandwidth->in || net->bandwidth->in) {
+ if (VIR_ALLOC(newBandwidth->in) < 0) {
+ virReportOOMError();
+ goto cleanup;
+ }
+ if (bandwidth->in)
+ memcpy(newBandwidth->in, bandwidth->in, sizeof(*newBandwidth->in));
+ else if (net->bandwidth->in)
+ memcpy(newBandwidth->in, net->bandwidth->in, sizeof(*newBandwidth->in));
+ }
+ if (bandwidth->out || net->bandwidth->out) {
+ if (VIR_ALLOC(newBandwidth->out) < 0) {
+ virReportOOMError();
+ goto cleanup;
+ }
+ if (bandwidth->out)
+ memcpy(newBandwidth->out, bandwidth->out, sizeof(*newBandwidth->out));
+ else if (net->bandwidth->out)
+ memcpy(newBandwidth->out, net->bandwidth->out, sizeof(*newBandwidth->out));
+ }
+
+ if (virNetDevBandwidthSet(net->ifname, newBandwidth) < 0) {
+ qemuReportError(VIR_ERR_INTERNAL_ERROR,
+ _("cannot set bandwidth limits on %s"),
+ device);
+ ret = -1;
+ goto cleanup;
+ }
+
+ virNetDevBandwidthFree(net->bandwidth);
+ net->bandwidth = newBandwidth;
+ }
+ if (flags & VIR_DOMAIN_AFFECT_CONFIG) {
+ if (!persistentNet->bandwidth) {
+ persistentNet->bandwidth = bandwidth;
+ bandwidth = NULL;
+ } else {
+ if (bandwidth->in) {
+ VIR_FREE(persistentNet->bandwidth->in);
+ persistentNet->bandwidth->in = bandwidth->in;
+ bandwidth->in = NULL;
+ }
+ if (bandwidth->out) {
+ VIR_FREE(persistentNet->bandwidth->out);
+ persistentNet->bandwidth->out = bandwidth->out;
+ bandwidth->out = NULL;
+ }
+ }
+
+ if (virDomainSaveConfig(driver->configDir, persistentDef) < 0)
+ goto cleanup;
+ }
+
+ ret = 0;
+cleanup:
+ if (bandwidth) {
+ VIR_FREE(bandwidth->in);
+ VIR_FREE(bandwidth->out);
+ VIR_FREE(bandwidth);
+ }
+ virCgroupFree(&group);
+ if (vm)
+ virDomainObjUnlock(vm);
+ qemuDriverUnlock(driver);
+ return ret;
+}
+
+static int
+qemuDomainGetInterfaceParameters(virDomainPtr dom,
+ const char *device,
+ virTypedParameterPtr params,
+ int *nparams,
+ unsigned int flags)
+{
+ struct qemud_driver *driver = dom->conn->privateData;
+ int i;
+ virCgroupPtr group = NULL;
+ virDomainObjPtr vm = NULL;
+ virDomainDefPtr def = NULL;
+ virDomainDefPtr persistentDef = NULL;
+ virDomainNetDefPtr net = NULL;
+ int ret = -1;
+
+ virCheckFlags(VIR_DOMAIN_AFFECT_LIVE |
+ VIR_DOMAIN_AFFECT_CONFIG |
+ VIR_TYPED_PARAM_STRING_OKAY, -1);
+
+ qemuDriverLock(driver);
+
+ flags &= ~VIR_TYPED_PARAM_STRING_OKAY;
+
+ vm = virDomainFindByUUID(&driver->domains, dom->uuid);
+
+ if (vm == NULL) {
+ qemuReportError(VIR_ERR_INTERNAL_ERROR,
+ _("No such domain %s"), dom->uuid);
+ goto cleanup;
+ }
+
+ if (virDomainLiveConfigHelperMethod(driver->caps, vm, &flags,
+ &persistentDef) < 0)
+ goto cleanup;
+
+ if ((*nparams) == 0) {
+ *nparams = QEMU_NB_BANDWIDTH_PARAM;
+ ret = 0;
+ goto cleanup;
+ }
+
+ def = persistentDef;
+ if (!def)
+ def = vm->def;
+
+ net = virDomainNetFind(def, device);
+ if (!net) {
+ qemuReportError(VIR_ERR_INVALID_ARG,
+ _("Can't find device %s"), device);
+ goto cleanup;
+ }
+
+ for (i = 0; i < *nparams && i < QEMU_NB_BANDWIDTH_PARAM; i++) {
+ params[i].value.ui = 0;
+ params[i].type = VIR_TYPED_PARAM_UINT;
+
+ switch(i) {
+ case 0: /* inbound.average */
+ if (virStrcpyStatic(params[i].field, VIR_DOMAIN_BANDWIDTH_IN_AVERAGE) == NULL) {
+ qemuReportError(VIR_ERR_INTERNAL_ERROR,
+ _("Field name '%s' too long"),
+ VIR_DOMAIN_BANDWIDTH_IN_AVERAGE);
+ goto cleanup;
+ }
+ if (net->bandwidth && net->bandwidth->in)
+ params[i].value.ui = net->bandwidth->in->average;
+ break;
+ case 1: /* inbound.peak */
+ if (virStrcpyStatic(params[i].field, VIR_DOMAIN_BANDWIDTH_IN_PEAK) == NULL) {
+ qemuReportError(VIR_ERR_INTERNAL_ERROR,
+ _("Field name '%s' too long"),
+ VIR_DOMAIN_BANDWIDTH_IN_PEAK);
+ goto cleanup;
+ }
+ if (net->bandwidth && net->bandwidth->in)
+ params[i].value.ui = net->bandwidth->in->peak;
+ break;
+ case 2: /* inbound.burst */
+ if (virStrcpyStatic(params[i].field, VIR_DOMAIN_BANDWIDTH_IN_BURST) == NULL) {
+ qemuReportError(VIR_ERR_INTERNAL_ERROR,
+ _("Field name '%s' too long"),
+ VIR_DOMAIN_BANDWIDTH_IN_BURST);
+ goto cleanup;
+ }
+ if (net->bandwidth && net->bandwidth->in)
+ params[i].value.ui = net->bandwidth->in->burst;
+ break;
+ case 3: /* outbound.average */
+ if (virStrcpyStatic(params[i].field, VIR_DOMAIN_BANDWIDTH_OUT_AVERAGE) == NULL) {
+ qemuReportError(VIR_ERR_INTERNAL_ERROR,
+ _("Field name '%s' too long"),
+ VIR_DOMAIN_BANDWIDTH_OUT_AVERAGE);
+ goto cleanup;
+ }
+ if (net->bandwidth && net->bandwidth->out)
+ params[i].value.ui = net->bandwidth->out->average;
+ break;
+ case 4: /* outbound.peak */
+ if (virStrcpyStatic(params[i].field, VIR_DOMAIN_BANDWIDTH_OUT_PEAK) == NULL) {
+ qemuReportError(VIR_ERR_INTERNAL_ERROR,
+ _("Field name '%s' too long"),
+ VIR_DOMAIN_BANDWIDTH_OUT_PEAK);
+ goto cleanup;
+ }
+ if (net->bandwidth && net->bandwidth->out)
+ params[i].value.ui = net->bandwidth->out->peak;
+ break;
+ case 5: /* outbound.burst */
+ if (virStrcpyStatic(params[i].field, VIR_DOMAIN_BANDWIDTH_OUT_BURST) == NULL) {
+ qemuReportError(VIR_ERR_INTERNAL_ERROR,
+ _("Field name '%s' too long"),
+ VIR_DOMAIN_BANDWIDTH_OUT_BURST);
+ goto cleanup;
+ }
+ if (net->bandwidth && net->bandwidth->out)
+ params[i].value.ui = net->bandwidth->out->burst;
+ break;
+ default:
+ break;
+ /* should not hit here */
+ }
+ }
+
+ if (*nparams > QEMU_NB_BANDWIDTH_PARAM)
+ *nparams = QEMU_NB_BANDWIDTH_PARAM;
+ ret = 0;
+
+cleanup:
+ if (group)
+ virCgroupFree(&group);
+ if (vm)
+ virDomainObjUnlock(vm);
+ qemuDriverUnlock(driver);
+ return ret;
+}
+
+static int
qemudDomainMemoryStats (virDomainPtr dom,
struct _virDomainMemoryStat *stats,
unsigned int nr_stats,
@@ -11642,6 +11993,8 @@ static virDriver qemuDriver = {
.domainGetBlockIoTune = qemuDomainGetBlockIoTune, /* 0.9.8 */
.domainSetNumaParameters = qemuDomainSetNumaParameters, /* 0.9.9 */
.domainGetNumaParameters = qemuDomainGetNumaParameters, /* 0.9.9 */
+ .domainGetInterfaceParameters = qemuDomainGetInterfaceParameters, /* 0.9.9 */
+ .domainSetInterfaceParameters = qemuDomainSetInterfaceParameters, /* 0.9.9 */
};
--
1.7.4.4
--
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