#include <palacios/vmm_rbtree.h>
-#ifndef V3_CONFIG_DEBUG_EXT_EDF_SCHED
+#ifndef V3_CONFIG_DEBUG_EXT_SCHED_EDF
#undef PrintDebug
#define PrintDebug(fmt, args...)
#endif
static bool
is_admissible_core(struct vm_core_edf_sched * new_sched_core, struct vm_edf_rq *runqueue){
+ struct v3_vm_info * vm = new_sched_core->info->vm_info;
+
+ struct v3_time *vm_ts = &(vm->time_state);
+ int tdf = vm_ts->td_denom;
+
int curr_utilization = runqueue->cpu_u;
- int new_utilization = curr_utilization + (100 * new_sched_core->slice / new_sched_core->period);
+ int new_utilization = curr_utilization + ((100/tdf) * new_sched_core->slice / new_sched_core->period);
int cpu_percent = (runqueue->edf_config).cpu_percent;
if (new_utilization <= cpu_percent)
static void
activate_core(struct vm_core_edf_sched * core, struct vm_edf_rq *runqueue){
+
+ struct v3_vm_info * vm = core->info->vm_info;
+
+ struct v3_time *vm_ts = &(vm->time_state);
+ int tdf = vm_ts->td_denom;
if (is_admissible_core(core, runqueue)){
ins = insert_core_edf(core, runqueue);
}
- runqueue->cpu_u += 100 * core->slice / core->period;
+ runqueue->cpu_u += (100/tdf) * core->slice / core->period;
runqueue->nr_vCPU ++;
/*
#include <palacios/vmm_extensions.h>
#include <palacios/vmm_timeout.h>
#include <palacios/vmm_options.h>
+#include <palacios/vmm_cpu_mapper.h>
#ifdef V3_CONFIG_SVM
#include <palacios/svm.h>
// Register all shadow paging handlers
V3_init_shdw_paging();
+ // Initialize the cpu_mapper framework (must be before extensions)
+ V3_init_cpu_mapper();
+
// Initialize the scheduler framework (must be before extensions)
V3_init_scheduling();
// Register all extensions
V3_init_extensions();
+ // Enabling cpu_mapper
+ V3_enable_cpu_mapper();
+
// Enabling scheduler
V3_enable_scheduler();
return 0;
}
-
-// For the moment very ugly. Eventually we will shift the cpu_mask to an arbitrary sized type...
-#define MAX_CORES 32
-
-
int v3_start_vm(struct v3_vm_info * vm, unsigned int cpu_mask) {
+
uint32_t i;
uint8_t * core_mask = (uint8_t *)&cpu_mask; // This is to make future expansion easier
uint32_t avail_cores = 0;
}
}
-
-
/// CHECK IF WE ARE MULTICORE ENABLED....
V3_Print(vm, VCORE_NONE, "V3 -- Starting VM (%u cores)\n", vm->num_cores);
// Check that enough cores are present in the mask to handle vcores
- for (i = 0; i < MAX_CORES; i++) {
+ for (i = 0; i < V3_CONFIG_MAX_CPUS; i++) {
int major = i / 8;
int minor = i % 8;
}
}
-
vm->avail_cores = avail_cores;
if (v3_scheduler_admit_vm(vm) != 0){
- PrintError(vm, VCORE_NONE,"Error admitting VM %s for scheduling", vm->name);
+ PrintError(vm, VCORE_NONE,"Error admitting VM %s for scheduling", vm->name);
+ }
+
+ if (v3_cpu_mapper_admit_vm(vm) != 0){
+ PrintError(vm, VCORE_NONE,"Error admitting VM %s for mapping", vm->name);
}
vm->run_state = VM_RUNNING;
- // Spawn off threads for each core.
- // We work backwards, so that core 0 is always started last.
- for (i = 0, vcore_id = vm->num_cores - 1; (i < MAX_CORES) && (vcore_id >= 0); i++) {
- int major = 0;
- int minor = 0;
- struct guest_info * core = &(vm->cores[vcore_id]);
- char * specified_cpu = v3_cfg_val(core->core_cfg_data, "target_cpu");
- uint32_t core_idx = 0;
-
- if (specified_cpu != NULL) {
- core_idx = atoi(specified_cpu);
-
- if ((core_idx < 0) || (core_idx >= MAX_CORES)) {
- PrintError(vm, VCORE_NONE, "Target CPU out of bounds (%d) (MAX_CORES=%d)\n", core_idx, MAX_CORES);
- }
+ if(v3_cpu_mapper_register_vm(vm,cpu_mask) == -1) {
- i--; // We reset the logical core idx. Not strictly necessary I guess...
- } else {
- core_idx = i;
- }
+ PrintError(vm, VCORE_NONE,"Error registering VM with cpu_mapper\n");
+ }
- major = core_idx / 8;
- minor = core_idx % 8;
- if ((core_mask[major] & (0x1 << minor)) == 0) {
- PrintError(vm, VCORE_NONE, "Logical CPU %d not available for virtual core %d; not started\n",
- core_idx, vcore_id);
+ for (vcore_id = 0; vcore_id < vm->num_cores; vcore_id++) {
- if (specified_cpu != NULL) {
- PrintError(vm, VCORE_NONE, "CPU was specified explicitly (%d). HARD ERROR\n", core_idx);
- v3_stop_vm(vm);
- return -1;
- }
-
- continue;
- }
+ struct guest_info * core = &(vm->cores[vcore_id]);
PrintDebug(vm, VCORE_NONE, "Starting virtual core %u on logical core %u\n",
- vcore_id, core_idx);
+ vcore_id, core->pcpu_id);
sprintf(core->exec_name, "%s-%u", vm->name, vcore_id);
- PrintDebug(vm, VCORE_NONE, "run: core=%u, func=0x%p, arg=0x%p, name=%s\n",
- core_idx, start_core, core, core->exec_name);
+ PrintDebug(vm, VCORE_NONE, "run: core=%u, func=0x%p, arg=0x%p, name=%s\n",
+ core->pcpu_id, start_core, core, core->exec_name);
core->core_run_state = CORE_STOPPED; // core zero will turn itself on
- core->pcpu_id = core_idx;
- core->core_thread = V3_CREATE_THREAD_ON_CPU(core_idx, start_core, core, core->exec_name);
+ core->core_thread = V3_CREATE_THREAD_ON_CPU(core->pcpu_id, start_core, core, core->exec_name);
if (core->core_thread == NULL) {
PrintError(vm, VCORE_NONE, "Thread launch failed\n");
v3_stop_vm(vm);
return -1;
}
-
- vcore_id--;
}
- if (vcore_id >= 0) {
- PrintError(vm, VCORE_NONE, "Error starting VM: Not enough available CPU cores\n");
- v3_stop_vm(vm);
- return -1;
- }
-
-
return 0;
}
V3_Print(vm, core, "Moving Core\n");
+ if(v3_cpu_mapper_admit_core(vm, vcore_id, target_cpu) == -1){
+ PrintError(vm, core, "Core %d can not be admitted in cpu %d\n",vcore_id, target_cpu);
+ return -1;
+ }
+
#ifdef V3_CONFIG_VMX
switch (v3_cpu_types[core->pcpu_id]) {
