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perf: implement the remote protocol for perf event

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Add remote support for perf event.

Signed-off-by: Qiaowei Ren <qiaowei.ren@intel.com>
Message-id: 1459171833-26416-3-git-send-email-qiaowei.ren@intel.com
This commit is contained in:
Qiaowei Ren 2016-03-28 21:30:27 +08:00 committed by Daniel P. Berrange
parent c803b0072b
commit dd00767cbd
4 changed files with 133 additions and 1 deletions
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47
daemon/remote.c
View File

@ -2671,6 +2671,53 @@ remoteDispatchNodeGetMemoryStats(virNetServerPtr server ATTRIBUTE_UNUSED,
return rv;
}
static int
remoteDispatchDomainGetPerfEvents(virNetServerPtr server ATTRIBUTE_UNUSED,
virNetServerClientPtr client ATTRIBUTE_UNUSED,
virNetMessagePtr msg ATTRIBUTE_UNUSED,
virNetMessageErrorPtr rerr,
remote_domain_get_perf_events_args *args,
remote_domain_get_perf_events_ret *ret)
{
virDomainPtr dom = NULL;
virTypedParameterPtr params = NULL;
int nparams = 0;
int rv = -1;
struct daemonClientPrivate *priv =
virNetServerClientGetPrivateData(client);
if (!priv->conn) {
virReportError(VIR_ERR_INTERNAL_ERROR, "%s", _("connection not open"));
goto cleanup;
}
if (!(dom = get_nonnull_domain(priv->conn, args->dom)))
goto cleanup;
if (virDomainGetPerfEvents(dom, &params, &nparams) < 0)
goto cleanup;
if (nparams > REMOTE_DOMAIN_MEMORY_PARAMETERS_MAX) {
virReportError(VIR_ERR_INTERNAL_ERROR, "%s", _("nparams too large"));
goto cleanup;
}
if (virTypedParamsSerialize(params, nparams,
(virTypedParameterRemotePtr *) &ret->params.params_val,
&ret->params.params_len,
0) < 0)
goto cleanup;
rv = 0;
cleanup:
if (rv < 0)
virNetMessageSaveError(rerr);
virTypedParamsFree(params, nparams);
virObjectUnref(dom);
return rv;
}
static int
remoteDispatchDomainGetBlockJobInfo(virNetServerPtr server ATTRIBUTE_UNUSED,
virNetServerClientPtr client ATTRIBUTE_UNUSED,

39
src/remote/remote_driver.c
View File

@ -1816,6 +1816,43 @@ remoteDomainGetNumaParameters(virDomainPtr domain,
return rv;
}
static int
remoteDomainGetPerfEvents(virDomainPtr domain,
virTypedParameterPtr *params,
int *nparams)
{
int rv = -1;
remote_domain_get_perf_events_args args;
remote_domain_get_perf_events_ret ret;
struct private_data *priv = domain->conn->privateData;
remoteDriverLock(priv);
make_nonnull_domain(&args.dom, domain);
memset(&ret, 0, sizeof(ret));
if (call(domain->conn, priv, 0, REMOTE_PROC_DOMAIN_GET_PERF_EVENTS,
(xdrproc_t) xdr_remote_domain_get_perf_events_args, (char *) &args,
(xdrproc_t) xdr_remote_domain_get_perf_events_ret, (char *) &ret) == -1)
goto done;
if (virTypedParamsDeserialize((virTypedParameterRemotePtr) ret.params.params_val,
ret.params.params_len,
REMOTE_DOMAIN_PERF_EVENTS_MAX,
params,
nparams) < 0)
goto cleanup;
rv = 0;
cleanup:
xdr_free((xdrproc_t) xdr_remote_domain_get_perf_events_ret,
(char *) &ret);
done:
remoteDriverUnlock(priv);
return rv;
}
static int
remoteDomainGetBlkioParameters(virDomainPtr domain,
virTypedParameterPtr params, int *nparams,
@ -7585,6 +7622,8 @@ static virHypervisorDriver hypervisor_driver = {
.domainGetMemoryParameters = remoteDomainGetMemoryParameters, /* 0.8.5 */
.domainSetBlkioParameters = remoteDomainSetBlkioParameters, /* 0.9.0 */
.domainGetBlkioParameters = remoteDomainGetBlkioParameters, /* 0.9.0 */
.domainGetPerfEvents = remoteDomainGetPerfEvents, /* 1.3.3 */
.domainSetPerfEvents = remoteDomainSetPerfEvents, /* 1.3.3 */
.domainGetInfo = remoteDomainGetInfo, /* 0.3.0 */
.domainGetState = remoteDomainGetState, /* 0.9.2 */
.domainGetControlInfo = remoteDomainGetControlInfo, /* 0.9.3 */

30
src/remote/remote_protocol.x
View File

@ -109,6 +109,9 @@ const REMOTE_DOMAIN_BLOCK_IO_TUNE_PARAMETERS_MAX = 16;
/* Upper limit on list of numa parameters. */
const REMOTE_DOMAIN_NUMA_PARAMETERS_MAX = 16;
/* Upper limit on list of perf events. */
const REMOTE_DOMAIN_PERF_EVENTS_MAX = 64;
/* Upper limit on block copy tunable parameters. */
const REMOTE_DOMAIN_BLOCK_COPY_PARAMETERS_MAX = 16;
@ -628,6 +631,19 @@ struct remote_domain_get_numa_parameters_ret {
int nparams;
};
struct remote_domain_set_perf_events_args {
remote_nonnull_domain dom;
remote_typed_param params<REMOTE_DOMAIN_PERF_EVENTS_MAX>;
};
struct remote_domain_get_perf_events_args {
remote_nonnull_domain dom;
};
struct remote_domain_get_perf_events_ret {
remote_typed_param params<REMOTE_DOMAIN_PERF_EVENTS_MAX>;
};
struct remote_domain_block_stats_args {
remote_nonnull_domain dom;
remote_nonnull_string path;
@ -5751,5 +5767,17 @@ enum remote_procedure {
* @generate: both
* @acl: domain:migrate
*/
REMOTE_PROC_DOMAIN_MIGRATE_START_POST_COPY = 364
REMOTE_PROC_DOMAIN_MIGRATE_START_POST_COPY = 364,
/**
* @generate: none
* @acl: domain:read
*/
REMOTE_PROC_DOMAIN_GET_PERF_EVENTS = 365,
/**
* @generate: both
* @acl: domain:write
*/
REMOTE_PROC_DOMAIN_SET_PERF_EVENTS = 366
};

18
src/remote_protocol-structs
View File

@ -304,6 +304,22 @@ struct remote_domain_get_numa_parameters_ret {
} params;
int nparams;
};
struct remote_domain_set_perf_events_args {
remote_nonnull_domain dom;
struct {
u_int params_len;
remote_typed_param * params_val;
} params;
};
struct remote_domain_get_perf_events_args {
remote_nonnull_domain dom;
};
struct remote_domain_get_perf_events_ret {
struct {
u_int params_len;
remote_typed_param * params_val;
} params;
};
struct remote_domain_block_stats_args {
remote_nonnull_domain dom;
remote_nonnull_string path;
@ -3077,4 +3093,6 @@ enum remote_procedure {
REMOTE_PROC_CONNECT_EVENT_CONNECTION_CLOSED = 362,
REMOTE_PROC_DOMAIN_EVENT_CALLBACK_JOB_COMPLETED = 363,
REMOTE_PROC_DOMAIN_MIGRATE_START_POST_COPY = 364,
REMOTE_PROC_DOMAIN_GET_PERF_EVENTS = 365,
REMOTE_PROC_DOMAIN_SET_PERF_EVENTS = 366,
};