[libvirt] [PATCH v2 15/17] remote: introduce emulator pinning RPCs
Hu Tao
hutao at cn.fujitsu.com
Tue Aug 21 06:44:05 UTC 2012
From: Tang Chen <tangchen at cn.fujitsu.com>
Introduce 2 APIs to support emulator threads in remote driver.
1) remoteDomainPinEmulator: call driver api, such as qemudDomainPinEmulator.
2) remoteDomainGetEmulatorPinInfo: call driver api, such as qemudDomainGetEmulatorPinInfo.
They are similar to remoteDomainPinVcpuFlags and remoteDomainGetVcpuPinInfo.
Signed-off-by: Tang Chen <tangchen at cn.fujitsu.com>
Signed-off-by: Hu Tao <hutao at cn.fujitsu.com>
---
daemon/remote.c | 91 ++++++++++++++++++++++++++++++++++++++
src/remote/remote_driver.c | 99 ++++++++++++++++++++++++++++++++++++++++++
src/remote/remote_protocol.x | 21 ++++++++-
src/remote_protocol-structs | 22 ++++++++++
4 files changed, 232 insertions(+), 1 deletion(-)
diff --git a/daemon/remote.c b/daemon/remote.c
index 851bcc1..711bb93 100644
--- a/daemon/remote.c
+++ b/daemon/remote.c
@@ -1530,6 +1530,97 @@ no_memory:
}
static int
+remoteDispatchDomainPinEmulator(virNetServerPtr server ATTRIBUTE_UNUSED,
+ virNetServerClientPtr client,
+ virNetMessagePtr msg ATTRIBUTE_UNUSED,
+ virNetMessageErrorPtr rerr,
+ remote_domain_pin_emulator_args *args)
+{
+ int rv = -1;
+ virDomainPtr dom = NULL;
+ 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 (virDomainPinEmulator(dom,
+ (unsigned char *) args->cpumap.cpumap_val,
+ args->cpumap.cpumap_len,
+ args->flags) < 0)
+ goto cleanup;
+
+ rv = 0;
+
+cleanup:
+ if (rv < 0)
+ virNetMessageSaveError(rerr);
+ if (dom)
+ virDomainFree(dom);
+ return rv;
+}
+
+
+static int
+remoteDispatchDomainGetEmulatorPinInfo(virNetServerPtr server ATTRIBUTE_UNUSED,
+ virNetServerClientPtr client ATTRIBUTE_UNUSED,
+ virNetMessagePtr msg ATTRIBUTE_UNUSED,
+ virNetMessageErrorPtr rerr,
+ remote_domain_get_emulator_pin_info_args *args,
+ remote_domain_get_emulator_pin_info_ret *ret)
+{
+ virDomainPtr dom = NULL;
+ unsigned char *cpumaps = NULL;
+ int r;
+ 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;
+
+ /* Allocate buffers to take the results */
+ if (args->maplen > 0 &&
+ VIR_ALLOC_N(cpumaps, args->maplen) < 0)
+ goto no_memory;
+
+ if ((r = virDomainGetEmulatorPinInfo(dom,
+ cpumaps,
+ args->maplen,
+ args->flags)) < 0)
+ goto cleanup;
+
+ ret->ret = r;
+ ret->cpumaps.cpumaps_len = args->maplen;
+ ret->cpumaps.cpumaps_val = (char *) cpumaps;
+ cpumaps = NULL;
+
+ rv = 0;
+
+cleanup:
+ if (rv < 0)
+ virNetMessageSaveError(rerr);
+ VIR_FREE(cpumaps);
+ if (dom)
+ virDomainFree(dom);
+ return rv;
+
+no_memory:
+ virReportOOMError();
+ goto cleanup;
+}
+
+static int
remoteDispatchDomainGetVcpus(virNetServerPtr server ATTRIBUTE_UNUSED,
virNetServerClientPtr client ATTRIBUTE_UNUSED,
virNetMessagePtr msg ATTRIBUTE_UNUSED,
diff --git a/src/remote/remote_driver.c b/src/remote/remote_driver.c
index c4941c5..16fd864 100644
--- a/src/remote/remote_driver.c
+++ b/src/remote/remote_driver.c
@@ -1843,6 +1843,103 @@ done:
}
static int
+remoteDomainPinEmulator (virDomainPtr dom,
+ unsigned char *cpumap,
+ int cpumaplen,
+ unsigned int flags)
+{
+ int rv = -1;
+ struct private_data *priv = dom->conn->privateData;
+ remote_domain_pin_emulator_args args;
+
+ remoteDriverLock(priv);
+
+ if (cpumaplen > REMOTE_CPUMAP_MAX) {
+ virReportError(VIR_ERR_RPC,
+ _("%s length greater than maximum: %d > %d"),
+ "cpumap", cpumaplen, REMOTE_CPUMAP_MAX);
+ goto done;
+ }
+
+ make_nonnull_domain(&args.dom, dom);
+ args.cpumap.cpumap_val = (char *)cpumap;
+ args.cpumap.cpumap_len = cpumaplen;
+ args.flags = flags;
+
+ if (call(dom->conn, priv, 0, REMOTE_PROC_DOMAIN_PIN_EMULATOR,
+ (xdrproc_t) xdr_remote_domain_pin_emulator_args,
+ (char *) &args,
+ (xdrproc_t) xdr_void, (char *) NULL) == -1) {
+ goto done;
+ }
+
+ rv = 0;
+
+done:
+ remoteDriverUnlock(priv);
+ return rv;
+}
+
+
+static int
+remoteDomainGetEmulatorPinInfo (virDomainPtr domain,
+ unsigned char *cpumaps,
+ int maplen,
+ unsigned int flags)
+{
+ int rv = -1;
+ int i;
+ remote_domain_get_emulator_pin_info_args args;
+ remote_domain_get_emulator_pin_info_ret ret;
+ struct private_data *priv = domain->conn->privateData;
+
+ remoteDriverLock(priv);
+
+ /* There is only one cpumap for all emulator threads */
+ if (maplen > REMOTE_CPUMAPS_MAX) {
+ virReportError(VIR_ERR_RPC,
+ _("vCPU map buffer length exceeds maximum: %d > %d"),
+ maplen, REMOTE_CPUMAPS_MAX);
+ goto done;
+ }
+
+ make_nonnull_domain(&args.dom, domain);
+ args.maplen = maplen;
+ args.flags = flags;
+
+ memset(&ret, 0, sizeof(ret));
+
+ if (call (domain->conn, priv, 0, REMOTE_PROC_DOMAIN_GET_EMULATOR_PIN_INFO,
+ (xdrproc_t) xdr_remote_domain_get_emulator_pin_info_args,
+ (char *) &args,
+ (xdrproc_t) xdr_remote_domain_get_emulator_pin_info_ret,
+ (char *) &ret) == -1)
+ goto done;
+
+ if (ret.cpumaps.cpumaps_len > maplen) {
+ virReportError(VIR_ERR_RPC,
+ _("host reports map buffer length exceeds maximum: %d > %d"),
+ ret.cpumaps.cpumaps_len, maplen);
+ goto cleanup;
+ }
+
+ memset(cpumaps, 0, maplen);
+
+ for (i = 0; i < ret.cpumaps.cpumaps_len; ++i)
+ cpumaps[i] = ret.cpumaps.cpumaps_val[i];
+
+ rv = ret.ret;
+
+cleanup:
+ xdr_free ((xdrproc_t) xdr_remote_domain_get_emulator_pin_info_ret,
+ (char *) &ret);
+
+done:
+ remoteDriverUnlock(priv);
+ return rv;
+}
+
+static int
remoteDomainGetVcpus (virDomainPtr domain,
virVcpuInfoPtr info,
int maxinfo,
@@ -5257,6 +5354,8 @@ static virDriver remote_driver = {
.domainPinVcpu = remoteDomainPinVcpu, /* 0.3.0 */
.domainPinVcpuFlags = remoteDomainPinVcpuFlags, /* 0.9.3 */
.domainGetVcpuPinInfo = remoteDomainGetVcpuPinInfo, /* 0.9.3 */
+ .domainPinEmulator = remoteDomainPinEmulator, /* 0.10.0 */
+ .domainGetEmulatorPinInfo = remoteDomainGetEmulatorPinInfo, /* 0.10.0 */
.domainGetVcpus = remoteDomainGetVcpus, /* 0.3.0 */
.domainGetMaxVcpus = remoteDomainGetMaxVcpus, /* 0.3.0 */
.domainGetSecurityLabel = remoteDomainGetSecurityLabel, /* 0.6.1 */
diff --git a/src/remote/remote_protocol.x b/src/remote/remote_protocol.x
index 200fe75..67786cd 100644
--- a/src/remote/remote_protocol.x
+++ b/src/remote/remote_protocol.x
@@ -1054,6 +1054,23 @@ struct remote_domain_get_vcpu_pin_info_ret {
int num;
};
+struct remote_domain_pin_emulator_args {
+ remote_nonnull_domain dom;
+ opaque cpumap<REMOTE_CPUMAP_MAX>; /* (unsigned char *) */
+ unsigned int flags;
+};
+
+struct remote_domain_get_emulator_pin_info_args {
+ remote_nonnull_domain dom;
+ int maplen;
+ unsigned int flags;
+};
+
+struct remote_domain_get_emulator_pin_info_ret {
+ opaque cpumaps<REMOTE_CPUMAPS_MAX>;
+ int ret;
+};
+
struct remote_domain_get_vcpus_args {
remote_nonnull_domain dom;
int maxinfo;
@@ -2854,7 +2871,9 @@ enum remote_procedure {
REMOTE_PROC_DOMAIN_LIST_ALL_SNAPSHOTS = 274, /* skipgen skipgen priority:high */
REMOTE_PROC_DOMAIN_SNAPSHOT_LIST_ALL_CHILDREN = 275, /* skipgen skipgen priority:high */
REMOTE_PROC_DOMAIN_EVENT_BALLOON_CHANGE = 276, /* autogen autogen */
- REMOTE_PROC_DOMAIN_GET_HOSTNAME = 277 /* autogen autogen */
+ REMOTE_PROC_DOMAIN_GET_HOSTNAME = 277, /* autogen autogen */
+ REMOTE_PROC_DOMAIN_PIN_EMULATOR = 278, /* skipgen skipgen */
+ REMOTE_PROC_DOMAIN_GET_EMULATOR_PIN_INFO = 279 /* skipgen skipgen */
/*
* Notice how the entries are grouped in sets of 10 ?
diff --git a/src/remote_protocol-structs b/src/remote_protocol-structs
index 8d09138..7fde27b 100644
--- a/src/remote_protocol-structs
+++ b/src/remote_protocol-structs
@@ -718,6 +718,26 @@ struct remote_domain_get_vcpu_pin_info_ret {
} cpumaps;
int num;
};
+struct remote_domain_pin_emulator_args {
+ remote_nonnull_domain dom;
+ struct {
+ u_int cpumap_len;
+ char * cpumap_val;
+ } cpumap;
+ u_int flags;
+};
+struct remote_domain_get_emulator_pin_info_args {
+ remote_nonnull_domain dom;
+ int maplen;
+ u_int flags;
+};
+struct remote_domain_get_emulator_pin_info_ret {
+ struct {
+ u_int cpumaps_len;
+ char * cpumaps_val;
+ } cpumaps;
+ int ret;
+};
struct remote_domain_get_vcpus_args {
remote_nonnull_domain dom;
int maxinfo;
@@ -2259,4 +2279,6 @@ enum remote_procedure {
REMOTE_PROC_DOMAIN_SNAPSHOT_LIST_ALL_CHILDREN = 275,
REMOTE_PROC_DOMAIN_EVENT_BALLOON_CHANGE = 276,
REMOTE_PROC_DOMAIN_GET_HOSTNAME = 277,
+ REMOTE_PROC_DOMAIN_PIN_EMULATOR = 278,
+ REMOTE_PROC_DOMAIN_GET_EMULATOR_PIN_INFO = 279,
};
--
1.7.10.2
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