Palacios Public Git Repository

To checkout Palacios execute

  git clone http://v3vee.org/palacios/palacios.web/palacios.git
This will give you the master branch. You probably want the devel branch or one of the release branches. To switch to the devel branch, simply execute
  cd palacios
  git checkout --track -b devel origin/devel
The other branches are similar.


Added non-contiguous memory region support.
[palacios.git] / palacios / src / palacios / vmm.c
index 6e32e88..f28266c 100644 (file)
@@ -18,6 +18,7 @@
  */
 
 #include <palacios/vmm.h>
+#include <palacios/vmm_mem.h>
 #include <palacios/vmm_intr.h>
 #include <palacios/vmm_config.h>
 #include <palacios/vm_guest.h>
@@ -27,6 +28,7 @@
 #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>
@@ -125,12 +127,18 @@ void Init_V3(struct v3_os_hooks * hooks, char * cpu_mask, int num_cpus, char *op
     // 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();
 
@@ -264,13 +272,9 @@ static int start_core(void * p)
     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;
+
+    uint32_t i,j;
     uint8_t * core_mask = (uint8_t *)&cpu_mask; // This is to make future expansion easier
     uint32_t avail_cores = 0;
     int vcore_id = 0;
@@ -285,18 +289,18 @@ int v3_start_vm(struct v3_vm_info * vm, unsigned int cpu_mask) {
     // Do not run if any core is using shadow paging and we are out of 4 GB bounds
     for (i=0;i<vm->num_cores;i++) { 
        if (vm->cores[i].shdw_pg_mode == SHADOW_PAGING) {
-           if ((vm->mem_map.base_region.host_addr + vm->mem_size ) >= 0x100000000ULL) {
-               PrintError(vm, VCORE_NONE, "Base memory region exceeds 4 GB boundary with shadow paging enabled on core %d.\n",i);
-               PrintError(vm, VCORE_NONE, "Any use of non-64 bit mode in the guest is likely to fail in this configuration.\n");
-               PrintError(vm, VCORE_NONE, "If you would like to proceed anyway, remove this check and recompile Palacios.\n");
-               PrintError(vm, VCORE_NONE, "Alternatively, change this VM to use nested paging.\n");
-               return -1;
+           for (j=0;j<vm->mem_map.num_base_regions;j++) {
+               if ((vm->mem_map.base_regions[i].host_addr + V3_CONFIG_MEM_BLOCK_SIZE)  >= 0x100000000ULL) {
+                   PrintError(vm, VCORE_NONE, "Base memory region %d exceeds 4 GB boundary with shadow paging enabled on core %d.\n",j, i);
+                   PrintError(vm, VCORE_NONE, "Any use of non-64 bit mode in the guest is likely to fail in this configuration.\n");
+                   PrintError(vm, VCORE_NONE, "If you would like to proceed anyway, remove this check and recompile Palacios.\n");
+                   PrintError(vm, VCORE_NONE, "Alternatively, change this VM to use nested paging.\n");
+                   return -1;
+               }
            }
        }
     }
-
-
-
+    
     /// CHECK IF WE ARE MULTICORE ENABLED....
 
     V3_Print(vm, VCORE_NONE, "V3 --  Starting VM (%u cores)\n", vm->num_cores);
@@ -304,7 +308,7 @@ int v3_start_vm(struct v3_vm_info * vm, unsigned int cpu_mask) {
 
 
     // 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;
        
@@ -317,80 +321,46 @@ int v3_start_vm(struct v3_vm_info * vm, unsigned int cpu_mask) {
        }
     }
 
-
     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);
     }
 
-    vm->run_state = VM_RUNNING;
+    if (v3_cpu_mapper_admit_vm(vm) != 0){
+        PrintError(vm, VCORE_NONE,"Error admitting VM %s for mapping", vm->name);
+    }
 
-    // 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);
-           }
+    vm->run_state = VM_RUNNING;
 
-           i--; // We reset the logical core idx. Not strictly necessary I guess... 
-       } else {
-           core_idx = i;
-       }
+    if(v3_cpu_mapper_register_vm(vm,cpu_mask) == -1) {
 
-       major = core_idx / 8;
-       minor = core_idx % 8;
+        PrintError(vm, VCORE_NONE,"Error registering VM with cpu_mapper\n");
+    }
 
-       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);
 
-           if (specified_cpu != NULL) {
-               PrintError(vm, VCORE_NONE, "CPU was specified explicitly (%d). HARD ERROR\n", core_idx);
-               v3_stop_vm(vm);
-               return -1;
-           }
+    for (vcore_id = 0; vcore_id < vm->num_cores; vcore_id++) {
 
-           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;
 
 }
@@ -454,6 +424,11 @@ int v3_move_vm_core(struct v3_vm_info * vm, int vcore_id, int target_cpu) {
 
        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]) {
@@ -661,82 +636,91 @@ int v3_simulate_vm(struct v3_vm_info * vm, unsigned int msecs) {
 
 }
 
-int v3_get_state_vm(struct v3_vm_info *vm, struct v3_vm_state *s)
+int v3_get_state_vm(struct v3_vm_info        *vm, 
+                   struct v3_vm_base_state  *base,
+                   struct v3_vm_core_state  *core,
+                   struct v3_vm_mem_state   *mem)
 {
-  uint32_t i;
-  uint32_t numcores = s->num_vcores > vm->num_cores ? vm->num_cores : s->num_vcores;
-
-  switch (vm->run_state) { 
-  case VM_INVALID: s->state = V3_VM_INVALID; break;
-  case VM_RUNNING: s->state = V3_VM_RUNNING; break;
-  case VM_STOPPED: s->state = V3_VM_STOPPED; break;
-  case VM_PAUSED: s->state = V3_VM_PAUSED; break;
-  case VM_ERROR: s->state = V3_VM_ERROR; break;
-  case VM_SIMULATING: s->state = V3_VM_SIMULATING; break;
-  default: s->state = V3_VM_UNKNOWN; break;
-  }
+    uint32_t i;
+    uint32_t numcores = core->num_vcores > vm->num_cores ? vm->num_cores : core->num_vcores;
+    uint32_t numregions = mem->num_regions > vm->mem_map.num_base_regions ? vm->mem_map.num_base_regions : mem->num_regions;
+
+
+    switch (vm->run_state) { 
+       case VM_INVALID: base->state = V3_VM_INVALID; break;
+       case VM_RUNNING: base->state = V3_VM_RUNNING; break;
+       case VM_STOPPED: base->state = V3_VM_STOPPED; break;
+       case VM_PAUSED: base->state = V3_VM_PAUSED; break;
+       case VM_ERROR: base->state = V3_VM_ERROR; break;
+       case VM_SIMULATING: base->state = V3_VM_SIMULATING; break;
+       default: base->state = V3_VM_UNKNOWN; break;
+    }
+
+    for (i=0;i<numcores;i++) {
+       switch (vm->cores[i].core_run_state) {
+           case CORE_INVALID: core->vcore[i].state = V3_VCORE_INVALID; break;
+           case CORE_RUNNING: core->vcore[i].state = V3_VCORE_RUNNING; break;
+           case CORE_STOPPED: core->vcore[i].state = V3_VCORE_STOPPED; break;
+           default: core->vcore[i].state = V3_VCORE_UNKNOWN; break;
+       }
+       switch (vm->cores[i].cpu_mode) {
+           case REAL: core->vcore[i].cpu_mode = V3_VCORE_CPU_REAL; break;
+           case PROTECTED: core->vcore[i].cpu_mode = V3_VCORE_CPU_PROTECTED; break;
+           case PROTECTED_PAE: core->vcore[i].cpu_mode = V3_VCORE_CPU_PROTECTED_PAE; break;
+           case LONG: core->vcore[i].cpu_mode = V3_VCORE_CPU_LONG; break;
+           case LONG_32_COMPAT: core->vcore[i].cpu_mode = V3_VCORE_CPU_LONG_32_COMPAT; break;
+           case LONG_16_COMPAT: core->vcore[i].cpu_mode = V3_VCORE_CPU_LONG_16_COMPAT; break;
+           default: core->vcore[i].cpu_mode = V3_VCORE_CPU_UNKNOWN; break;
+       }
+       switch (vm->cores[i].shdw_pg_mode) { 
+           case SHADOW_PAGING: core->vcore[i].mem_state = V3_VCORE_MEM_STATE_SHADOW; break;
+           case NESTED_PAGING: core->vcore[i].mem_state = V3_VCORE_MEM_STATE_NESTED; break;
+           default: core->vcore[i].mem_state = V3_VCORE_MEM_STATE_UNKNOWN; break;
+       }
+       switch (vm->cores[i].mem_mode) { 
+           case PHYSICAL_MEM: core->vcore[i].mem_mode = V3_VCORE_MEM_MODE_PHYSICAL; break;
+           case VIRTUAL_MEM: core->vcore[i].mem_mode=V3_VCORE_MEM_MODE_VIRTUAL; break;
+           default: core->vcore[i].mem_mode=V3_VCORE_MEM_MODE_UNKNOWN; break;
+       }
+       
+       core->vcore[i].pcore=vm->cores[i].pcpu_id;
+       core->vcore[i].last_rip=(void*)(vm->cores[i].rip);
+       core->vcore[i].num_exits=vm->cores[i].num_exits;
+    }
+    
+    core->num_vcores=numcores;
 
-  s->mem_base_paddr = (void*)(vm->mem_map.base_region.host_addr);
-  s->mem_size = vm->mem_size;
-
-  s->num_vcores = numcores;
-
-  for (i=0;i<numcores;i++) {
-    switch (vm->cores[i].core_run_state) {
-    case CORE_INVALID: s->vcore[i].state = V3_VCORE_INVALID; break;
-    case CORE_RUNNING: s->vcore[i].state = V3_VCORE_RUNNING; break;
-    case CORE_STOPPED: s->vcore[i].state = V3_VCORE_STOPPED; break;
-    default: s->vcore[i].state = V3_VCORE_UNKNOWN; break;
-    }
-    switch (vm->cores[i].cpu_mode) {
-    case REAL: s->vcore[i].cpu_mode = V3_VCORE_CPU_REAL; break;
-    case PROTECTED: s->vcore[i].cpu_mode = V3_VCORE_CPU_PROTECTED; break;
-    case PROTECTED_PAE: s->vcore[i].cpu_mode = V3_VCORE_CPU_PROTECTED_PAE; break;
-    case LONG: s->vcore[i].cpu_mode = V3_VCORE_CPU_LONG; break;
-    case LONG_32_COMPAT: s->vcore[i].cpu_mode = V3_VCORE_CPU_LONG_32_COMPAT; break;
-    case LONG_16_COMPAT: s->vcore[i].cpu_mode = V3_VCORE_CPU_LONG_16_COMPAT; break;
-    default: s->vcore[i].cpu_mode = V3_VCORE_CPU_UNKNOWN; break;
-    }
-    switch (vm->cores[i].shdw_pg_mode) { 
-    case SHADOW_PAGING: s->vcore[i].mem_state = V3_VCORE_MEM_STATE_SHADOW; break;
-    case NESTED_PAGING: s->vcore[i].mem_state = V3_VCORE_MEM_STATE_NESTED; break;
-    default: s->vcore[i].mem_state = V3_VCORE_MEM_STATE_UNKNOWN; break;
-    }
-    switch (vm->cores[i].mem_mode) { 
-    case PHYSICAL_MEM: s->vcore[i].mem_mode = V3_VCORE_MEM_MODE_PHYSICAL; break;
-    case VIRTUAL_MEM: s->vcore[i].mem_mode=V3_VCORE_MEM_MODE_VIRTUAL; break;
-    default: s->vcore[i].mem_mode=V3_VCORE_MEM_MODE_UNKNOWN; break;
-    }
-
-    s->vcore[i].pcore=vm->cores[i].pcpu_id;
-    s->vcore[i].last_rip=(void*)(vm->cores[i].rip);
-    s->vcore[i].num_exits=vm->cores[i].num_exits;
-  }
+    for (i=0;i<vm->mem_map.num_base_regions;i++) {
+       mem->region[i].host_paddr =  (void*)(vm->mem_map.base_regions[i].host_addr);
+       mem->region[i].size = V3_CONFIG_MEM_BLOCK_SIZE;
+    }
 
-  return 0;
+    mem->num_regions=numregions;
+    
+    return 0;
 }
 
 
 #ifdef V3_CONFIG_CHECKPOINT
 #include <palacios/vmm_checkpoint.h>
 
-int v3_save_vm(struct v3_vm_info * vm, char * store, char * url) {
-    return v3_chkpt_save_vm(vm, store, url);
+int v3_save_vm(struct v3_vm_info * vm, char * store, char * url, v3_chkpt_options_t opts) {
+  return v3_chkpt_save_vm(vm, store, url, opts);
 }
 
 
-int v3_load_vm(struct v3_vm_info * vm, char * store, char * url) {
-    return v3_chkpt_load_vm(vm, store, url);
+int v3_load_vm(struct v3_vm_info * vm, char * store, char * url, v3_chkpt_options_t opts) {
+  return v3_chkpt_load_vm(vm, store, url, opts);
 }
 
 #ifdef V3_CONFIG_LIVE_MIGRATION
-int v3_send_vm(struct v3_vm_info * vm, char * store, char * url) {
-    return v3_chkpt_send_vm(vm, store, url);
+int v3_send_vm(struct v3_vm_info * vm, char * store, char * url, v3_chkpt_options_t opts) {
+  return v3_chkpt_send_vm(vm, store, url, opts);
 }
 
 
-int v3_receive_vm(struct v3_vm_info * vm, char * store, char * url) {
-    return v3_chkpt_receive_vm(vm, store, url);
+int v3_receive_vm(struct v3_vm_info * vm, char * store, char * url, v3_chkpt_options_t opts) {
+  return v3_chkpt_receive_vm(vm, store, url, opts);
 }
 #endif