Signed-off-by: Nemanja Marjanovic <nemanja.marjano...@intel.com>
Signed-off-by: Rory Sexton <rory.sex...@intel.com>
Signed-off-by: David Hunt <david.h...@intel.com>
---
examples/vm_power_manager/channel_manager.c | 55 +++++++++++++++++++++++++++++
examples/vm_power_manager/channel_manager.h | 16 ++++++++-
2 files changed, 70 insertions(+), 1 deletion(-)
diff --git a/examples/vm_power_manager/channel_manager.c
b/examples/vm_power_manager/channel_manager.c
index e068ae2..2abba9c 100644
--- a/examples/vm_power_manager/channel_manager.c
+++ b/examples/vm_power_manager/channel_manager.c
@@ -574,6 +574,61 @@ set_channel_status(const char *vm_name, unsigned
*channel_list,
return num_channels_changed;
}
+void
+get_all_vm(int *noVms, int *noVcpus) {
+
+ virNodeInfo info;
+ virDomainPtr *domptr;
+ uint64_t mask;
+ int ret, i, numVcpus[MAX_VCPUS], cpu;
+ unsigned int ii, jj, n_vcpus;
+ const char *vm_name;
+ unsigned int flags = VIR_CONNECT_LIST_DOMAINS_RUNNING |
+ VIR_CONNECT_LIST_DOMAINS_PERSISTENT;
+ unsigned int flag = VIR_DOMAIN_VCPU_CONFIG;
+
+
+ memset(global_cpumaps, 0, CHANNEL_CMDS_MAX_CPUS*global_maplen);
+ if (virNodeGetInfo(global_vir_conn_ptr, &info))
+ RTE_LOG(ERR, CHANNEL_MANAGER, "Unable to retrieve node Info\n");
+
+ /*Returns number of pcpus*/
+ global_n_host_cpus = (unsigned int)info.cpus;
+
+ /*Returns number of active domains */
+ ret = virConnectListAllDomains(global_vir_conn_ptr, &domptr, flags);
+ *noVms = ret;
+ if (ret < 0)
+ RTE_LOG(ERR, CHANNEL_MANAGER, "No Active Domains Running\n");
+
+ for (i = 0; i < ret; i++) {
+
+ /*Get Domain Names*/
+ vm_name = virDomainGetName(domptr[i]);
+ lvm_info[i].vm_name = vm_name;
+ /*Get Number of Vcpus*/
+ numVcpus[i] = virDomainGetVcpusFlags(domptr[i], flag);
+ /*Get Number of VCpus & VcpuPinInfo*/
+ n_vcpus = virDomainGetVcpuPinInfo(domptr[i],
+ numVcpus[i], global_cpumaps,
+ global_maplen, flag);
+ if ((int)n_vcpus > *noVcpus)
+ *noVcpus = n_vcpus;
+ for (ii = 0; ii < n_vcpus; ii++) {
+ mask = 0;
+ for (jj = 0; jj < global_n_host_cpus; jj++) {
+ if (VIR_CPU_USABLE(global_cpumaps,
+ global_maplen, ii, jj) > 0) {
+ mask |= 1ULL << jj;
+ }
+ }
+ ITERATIVE_BITMASK_CHECK_64(mask, cpu) {
+ lvm_info[i].pcpus[ii] = cpu;
+ }
+ }
+ }
+}
+
int
get_info_vm(const char *vm_name, struct vm_info *info)
{
diff --git a/examples/vm_power_manager/channel_manager.h
b/examples/vm_power_manager/channel_manager.h
index 47c3b9c..8dff76c 100644
--- a/examples/vm_power_manager/channel_manager.h
+++ b/examples/vm_power_manager/channel_manager.h
@@ -66,6 +66,16 @@ struct sockaddr_un _sockaddr_un;
#define UNIX_PATH_MAX sizeof(_sockaddr_un.sun_path)
#endif
+#define MAX_VMS 4
+#define MAX_VCPUS 20
+
+
+struct libvirt_vm_info {
+ const char *vm_name;
+ unsigned int pcpus[22];
+};
+
+struct libvirt_vm_info lvm_info[MAX_VMS];
/* Communication Channel Status */
enum channel_status { CHANNEL_MGR_CHANNEL_DISCONNECTED = 0,
CHANNEL_MGR_CHANNEL_CONNECTED,
@@ -318,7 +328,11 @@ int set_channel_status(const char *vm_name, unsigned
*channel_list,
* - Negative on error.
*/
int get_info_vm(const char *vm_name, struct vm_info *info);
-
+/**
+ * Populates a table with all domains running and their physical cpu.
+ * All information is gathered through libvirt api.
+ */
+void get_all_vm(int *noVms, int *noVcpus);
#ifdef __cplusplus
}
#endif
--
2.7.4
