summaryrefslogtreecommitdiff
path: root/examples/vm_power_manager/channel_manager.c
diff options
context:
space:
mode:
Diffstat (limited to 'examples/vm_power_manager/channel_manager.c')
-rw-r--r--examples/vm_power_manager/channel_manager.c71
1 files changed, 43 insertions, 28 deletions
diff --git a/examples/vm_power_manager/channel_manager.c b/examples/vm_power_manager/channel_manager.c
index 927fc35..2e471d0 100644
--- a/examples/vm_power_manager/channel_manager.c
+++ b/examples/vm_power_manager/channel_manager.c
@@ -43,7 +43,8 @@ static unsigned char *global_cpumaps;
static virVcpuInfo *global_vircpuinfo;
static size_t global_maplen;
-static unsigned global_n_host_cpus;
+static unsigned int global_n_host_cpus;
+static bool global_hypervisor_available;
/*
* Represents a single Virtual Machine
@@ -198,7 +199,11 @@ get_pcpus_mask(struct channel_info *chan_info, unsigned vcpu)
{
struct virtual_machine_info *vm_info =
(struct virtual_machine_info *)chan_info->priv_info;
- return rte_atomic64_read(&vm_info->pcpu_mask[vcpu]);
+
+ if (global_hypervisor_available && (vm_info != NULL))
+ return rte_atomic64_read(&vm_info->pcpu_mask[vcpu]);
+ else
+ return 0;
}
static inline int
@@ -559,6 +564,8 @@ get_all_vm(int *num_vm, int *num_vcpu)
VIR_CONNECT_LIST_DOMAINS_PERSISTENT;
unsigned int domain_flag = VIR_DOMAIN_VCPU_CONFIG;
+ if (!global_hypervisor_available)
+ return;
memset(global_cpumaps, 0, CHANNEL_CMDS_MAX_CPUS*global_maplen);
if (virNodeGetInfo(global_vir_conn_ptr, &node_info)) {
@@ -768,38 +775,42 @@ connect_hypervisor(const char *path)
}
return 0;
}
-
int
-channel_manager_init(const char *path)
+channel_manager_init(const char *path __rte_unused)
{
virNodeInfo info;
LIST_INIT(&vm_list_head);
if (connect_hypervisor(path) < 0) {
- RTE_LOG(ERR, CHANNEL_MANAGER, "Unable to initialize channel manager\n");
- return -1;
- }
-
- global_maplen = VIR_CPU_MAPLEN(CHANNEL_CMDS_MAX_CPUS);
+ global_n_host_cpus = 64;
+ global_hypervisor_available = 0;
+ RTE_LOG(INFO, CHANNEL_MANAGER, "Unable to initialize channel manager\n");
+ } else {
+ global_hypervisor_available = 1;
+
+ global_maplen = VIR_CPU_MAPLEN(CHANNEL_CMDS_MAX_CPUS);
+
+ global_vircpuinfo = rte_zmalloc(NULL,
+ sizeof(*global_vircpuinfo) *
+ CHANNEL_CMDS_MAX_CPUS, RTE_CACHE_LINE_SIZE);
+ if (global_vircpuinfo == NULL) {
+ RTE_LOG(ERR, CHANNEL_MANAGER, "Error allocating memory for CPU Info\n");
+ goto error;
+ }
+ global_cpumaps = rte_zmalloc(NULL,
+ CHANNEL_CMDS_MAX_CPUS * global_maplen,
+ RTE_CACHE_LINE_SIZE);
+ if (global_cpumaps == NULL)
+ goto error;
- global_vircpuinfo = rte_zmalloc(NULL, sizeof(*global_vircpuinfo) *
- CHANNEL_CMDS_MAX_CPUS, RTE_CACHE_LINE_SIZE);
- if (global_vircpuinfo == NULL) {
- RTE_LOG(ERR, CHANNEL_MANAGER, "Error allocating memory for CPU Info\n");
- goto error;
- }
- global_cpumaps = rte_zmalloc(NULL, CHANNEL_CMDS_MAX_CPUS * global_maplen,
- RTE_CACHE_LINE_SIZE);
- if (global_cpumaps == NULL) {
- goto error;
+ if (virNodeGetInfo(global_vir_conn_ptr, &info)) {
+ RTE_LOG(ERR, CHANNEL_MANAGER, "Unable to retrieve node Info\n");
+ goto error;
+ }
+ global_n_host_cpus = (unsigned int)info.cpus;
}
- if (virNodeGetInfo(global_vir_conn_ptr, &info)) {
- RTE_LOG(ERR, CHANNEL_MANAGER, "Unable to retrieve node Info\n");
- goto error;
- }
- global_n_host_cpus = (unsigned)info.cpus;
if (global_n_host_cpus > CHANNEL_CMDS_MAX_CPUS) {
RTE_LOG(WARNING, CHANNEL_MANAGER, "The number of host CPUs(%u) exceeds the "
@@ -811,7 +822,8 @@ channel_manager_init(const char *path)
return 0;
error:
- disconnect_hypervisor();
+ if (global_hypervisor_available)
+ disconnect_hypervisor();
return -1;
}
@@ -838,7 +850,10 @@ channel_manager_exit(void)
rte_free(vm_info);
}
- rte_free(global_cpumaps);
- rte_free(global_vircpuinfo);
- disconnect_hypervisor();
+ if (global_hypervisor_available) {
+ /* Only needed if hypervisor available */
+ rte_free(global_cpumaps);
+ rte_free(global_vircpuinfo);
+ disconnect_hypervisor();
+ }
}