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.


Final changes to paging configuration format. Nested and shadow paging
[palacios.git] / palacios / src / palacios / vmm_config.c
index cc3e431..9ba0a11 100644 (file)
 #include <palacios/vmm_dev_mgr.h>
 #include <palacios/vmm_cpuid.h>
 #include <palacios/vmm_xml.h>
+#include <palacios/vmm_io.h>
+#include <palacios/vmm_msr.h>
+#include <palacios/vmm_mptable.h>
 
-#include <palacios/svm.h>
-#include <palacios/vmx.h>
 
-#ifdef CONFIG_SYMBIOTIC
-#include <palacios/vmm_sym_iface.h>
 
-#ifdef CONFIG_SYMBIOTIC_SWAP
-#include <palacios/vmm_sym_swap.h>
-#endif
 
-#endif
 
 
 #include <palacios/vmm_host_events.h>
@@ -189,6 +184,8 @@ static struct v3_config * parse_config(void * cfg_blob) {
 }
 
 static int pre_config_vm(struct v3_vm_info * vm, v3_cfg_tree_t * vm_cfg) {
+
+
     char * memory_str = v3_cfg_val(vm_cfg, "memory");
     char * schedule_hz_str = v3_cfg_val(vm_cfg, "schedule_hz");
     char * vm_class = v3_cfg_val(vm_cfg, "class");
@@ -211,6 +208,7 @@ static int pre_config_vm(struct v3_vm_info * vm, v3_cfg_tree_t * vm_cfg) {
        return -1;
     }
 
+
 #ifdef CONFIG_TELEMETRY
     {
        char * telemetry = v3_cfg_val(vm_cfg, "telemetry");
@@ -224,31 +222,13 @@ static int pre_config_vm(struct v3_vm_info * vm, v3_cfg_tree_t * vm_cfg) {
     }
 #endif
 
-    v3_init_hypercall_map(vm);
-    v3_init_io_map(vm);
-    v3_init_msr_map(vm);
-    v3_init_cpuid_map(vm);
-    v3_init_host_events(vm);
-    v3_init_intr_routers(vm);
-
-    // Initialize the memory map
-    if (v3_init_mem_map(&(vm->cores[0])) == -1) {
-       PrintError("Could not initialize shadow map\n");
+    if (v3_init_vm(vm) == -1) {
+       PrintError("Failed to initialize VM\n");
        return -1;
     }
 
-#ifdef CONFIG_SYMBIOTIC
-    v3_init_sym_iface(vm);
-#endif
-
-    v3_init_dev_mgr(vm);
 
 
-#ifdef CONFIG_SYMBIOTIC_SWAP
-    PrintDebug("initializing symbiotic swap\n");
-    v3_init_sym_swap(vm);
-#endif
-
    if (schedule_hz_str) {
        sched_hz = atoi(schedule_hz_str);
     }
@@ -261,39 +241,52 @@ static int pre_config_vm(struct v3_vm_info * vm, v3_cfg_tree_t * vm_cfg) {
     return 0;
 }
 
-static int pre_config_core(struct guest_info * info, v3_cfg_tree_t * core_cfg) {
+static int determine_paging_mode(struct guest_info *info, v3_cfg_tree_t * core_cfg)
+{
     extern v3_cpu_arch_t v3_cpu_types[];
-    char * paging = v3_cfg_val(core_cfg, "paging");
-
-    /*
-     * Initialize the subsystem data strutures
-     */
-#ifdef CONFIG_TELEMETRY
-    if (info->vm_info->enable_telemetry) {
-       v3_init_telemetry(info);
-    }
-#endif
 
+    v3_cfg_tree_t *vm_tree = info->vm_info->cfg_data->cfg;
+    v3_cfg_tree_t *pg_tree = v3_cfg_subtree(vm_tree, "paging");
+    char *pg_mode = v3_cfg_val(pg_tree, "mode");
     
-    if ((v3_cpu_types[info->cpu_id] == V3_SVM_REV3_CPU) && 
-       (paging) && (strcasecmp(paging, "nested") == 0)) {
-       PrintDebug("Guest Page Mode: NESTED_PAGING\n");
-       info->shdw_pg_mode = NESTED_PAGING;
+    PrintDebug("Paging mode specified as %s\n", pg_mode);
+
+    if (pg_mode) {
+       if ((strcasecmp(pg_mode, "nested") == 0)) {
+           if (v3_cpu_types[info->cpu_id] == V3_SVM_REV3_CPU) {
+               info->shdw_pg_mode = NESTED_PAGING;
+           } else {
+               PrintError("Nested paging not supported on this hardware. Defaulting to shadow paging\n");
+               info->shdw_pg_mode = SHADOW_PAGING;
+           }
+       } else if ((strcasecmp(pg_mode, "shadow") == 0)) {
+           info->shdw_pg_mode = SHADOW_PAGING;
+       } else {
+           PrintError("Invalid paging mode (%s) specified in configuration. Defaulting to shadow paging\n", pg_mode);
+           info->shdw_pg_mode = SHADOW_PAGING;
+       }
     } else {
-       PrintDebug("Guest Page Mode: SHADOW_PAGING\n");
-       v3_init_shadow_page_state(info);
+       PrintDebug("No paging mode specified in configuration.\n");
        info->shdw_pg_mode = SHADOW_PAGING;
     }
 
+    if (info->shdw_pg_mode == NESTED_PAGING) {
+       PrintDebug("Guest Paging Mode: NESTED_PAGING\n");
+    } else if (info->shdw_pg_mode == SHADOW_PAGING) {
+        PrintDebug("Guest Paging Mode: SHADOW_PAGING\n");
+    } else {
+       PrintError("Guest paging mode incorrectly set.\n");
+       return -1;
+    }
+    return 0;
+}
 
+static int pre_config_core(struct guest_info * info, v3_cfg_tree_t * core_cfg) {
 
-    v3_init_time(info);
-    v3_init_intr_controllers(info);
-    v3_init_exception_state(info);
-
-    v3_init_decoder(info);
-    
+    if (determine_paging_mode(info, core_cfg))
+       return -1;
 
+    v3_init_core(info);
 
     if (info->vm_info->vm_class == V3_PC_VM) {
        if (pre_config_pc_core(info, core_cfg) == -1) {
@@ -342,6 +335,11 @@ static int post_config_vm(struct v3_vm_info * vm, v3_cfg_tree_t * cfg) {
        return -1;
     }
 
+    if (v3_inject_mptable(vm)==-1) { 
+       PrintError("Failed to inject mptable during configuration\n");
+       return -1;
+    }
+
     return 0;
 }
 
@@ -403,8 +401,18 @@ struct v3_vm_info * v3_config_guest(void * cfg_blob) {
 
     cores_cfg = v3_cfg_subtree(cfg_data->cfg, "cores");
 
+    if (!cores_cfg) {
+       PrintError("Could not find core configuration (new config format required)\n");
+       return NULL;
+    }
+
     num_cores = atoi(v3_cfg_val(cores_cfg, "count"));
 
+    if (num_cores == 0) {
+       PrintError("No cores specified in configuration\n");
+       return NULL;
+    }
+
     V3_Print("Configuring %d cores\n", num_cores);
 
     vm = allocate_guest(num_cores);    
@@ -431,34 +439,14 @@ struct v3_vm_info * v3_config_guest(void * cfg_blob) {
     for (i = 0; i < vm->num_cores; i++) {
        struct guest_info * info = &(vm->cores[i]);
 
-       
        info->cpu_id = i;
        info->vm_info = vm;
 
-       pre_config_core(info, per_core_cfg);
-
-       // init SVM/VMX
-#ifdef CONFIG_SVM
-       if ((cpu_type == V3_SVM_CPU) || (cpu_type == V3_SVM_REV3_CPU)) {
-           if (v3_init_svm_vmcb(info, vm->vm_class) == -1) {
-               PrintError("Error in SVM initialization\n");
-               return NULL;
-           }
-       }
-#endif
-#ifdef CONFIG_VMX
-       else if ((cpu_type == V3_VMX_CPU) || (cpu_type == V3_VMX_EPT_CPU)) {
-           if (v3_init_vmx_vmcs(info, vm->vm_class) == -1) {
-               PrintError("Error in VMX initialization\n");
-               return NULL;
-           }
-       }
-#endif
-       else {
-           PrintError("Invalid CPU Type\n");
+       if (pre_config_core(info, per_core_cfg) == -1) {
+           PrintError("Error in core %d preconfiguration\n", i);
            return NULL;
        }
-       
+
        per_core_cfg = v3_cfg_next_branch(per_core_cfg);
     }
 
@@ -500,7 +488,7 @@ static int setup_memory_map(struct v3_vm_info * vm, v3_cfg_tree_t * cfg) {
        addr_t host_addr = atox(v3_cfg_val(mem_region, "host_addr"));
 
     
-       if (v3_add_shadow_mem(vm, start_addr, end_addr, host_addr) == -1) {
+       if (v3_add_shadow_mem(vm, V3_MEM_CORE_ANY, start_addr, end_addr, host_addr) == -1) {
            PrintError("Could not map memory region: %p-%p => %p\n", 
                       (void *)start_addr, (void *)end_addr, (void *)host_addr);
            return -1;