diff options
Diffstat (limited to 'examples/vm_power_manager/channel_manager.c')
| -rw-r--r-- | examples/vm_power_manager/channel_manager.c | 67 |
1 files changed, 67 insertions, 0 deletions
diff --git a/examples/vm_power_manager/channel_manager.c b/examples/vm_power_manager/channel_manager.c index e068ae28..ab856bdb 100644 --- a/examples/vm_power_manager/channel_manager.c +++ b/examples/vm_power_manager/channel_manager.c @@ -574,6 +574,73 @@ set_channel_status(const char *vm_name, unsigned *channel_list, return num_channels_changed; } +void +get_all_vm(int *num_vm, int *num_vcpu) +{ + + virNodeInfo node_info; + virDomainPtr *domptr; + uint64_t mask; + int i, ii, numVcpus[MAX_VCPUS], cpu, n_vcpus; + unsigned int jj; + const char *vm_name; + unsigned int domain_flags = VIR_CONNECT_LIST_DOMAINS_RUNNING | + VIR_CONNECT_LIST_DOMAINS_PERSISTENT; + unsigned int domain_flag = VIR_DOMAIN_VCPU_CONFIG; + + + memset(global_cpumaps, 0, CHANNEL_CMDS_MAX_CPUS*global_maplen); + if (virNodeGetInfo(global_vir_conn_ptr, &node_info)) { + RTE_LOG(ERR, CHANNEL_MANAGER, "Unable to retrieve node Info\n"); + return; + } + + /* Returns number of pcpus */ + global_n_host_cpus = (unsigned int)node_info.cpus; + + /* Returns number of active domains */ + *num_vm = virConnectListAllDomains(global_vir_conn_ptr, &domptr, + domain_flags); + if (*num_vm <= 0) { + RTE_LOG(ERR, CHANNEL_MANAGER, "No Active Domains Running\n"); + return; + } + + for (i = 0; i < *num_vm; 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], domain_flag); + + /* Get Number of VCpus & VcpuPinInfo */ + n_vcpus = virDomainGetVcpuPinInfo(domptr[i], + numVcpus[i], global_cpumaps, + global_maplen, domain_flag); + + if ((int)n_vcpus > 0) { + *num_vcpu = n_vcpus; + lvm_info[i].num_cpus = n_vcpus; + } + + /* Save pcpu in use by libvirt VMs */ + 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) { |