X-Git-Url: http://v3vee.org/palacios/gitweb/gitweb.cgi?a=blobdiff_plain;f=palacios%2Fsrc%2Fpalacios%2Fvmm_config.c;h=8d348e6c7f421ce7e820256711f85440bb893b28;hb=cfd5e43722796b4951faf721c64f3a74ab81ff2b;hp=39c4d492ceda82387865b7ee1e4d981439baca30;hpb=ef08de1ae6a7b45c9c536ad179f5f836a163087c;p=palacios.git diff --git a/palacios/src/palacios/vmm_config.c b/palacios/src/palacios/vmm_config.c index 39c4d49..8d348e6 100644 --- a/palacios/src/palacios/vmm_config.c +++ b/palacios/src/palacios/vmm_config.c @@ -30,15 +30,13 @@ #include #include #include - - +#include #include -#include #include "vmm_config_class.h" @@ -58,6 +56,7 @@ struct file_idx_table { static int setup_memory_map(struct v3_vm_info * vm, v3_cfg_tree_t * cfg); +static int setup_extensions(struct v3_vm_info * vm, v3_cfg_tree_t * cfg); static int setup_devices(struct v3_vm_info * vm, v3_cfg_tree_t * cfg); @@ -72,9 +71,16 @@ char * v3_cfg_val(v3_cfg_tree_t * tree, char * tag) { return NULL; } - val = (attrib == NULL) ? v3_xml_txt(child_entry): attrib; - - return val; + if (attrib == NULL) { + val = v3_xml_txt(child_entry); + + if ( val[0] == 0 ) + val = NULL; + } else { + val = attrib; + } + + return val; } v3_cfg_tree_t * v3_cfg_subtree(v3_cfg_tree_t * tree, char * tag) { @@ -159,7 +165,6 @@ static struct v3_config * parse_config(void * cfg_blob) { return NULL; } - V3_Print("File index=%d id=%s\n", idx, id); strncpy(file->tag, id, 256); @@ -183,24 +188,57 @@ static struct v3_config * parse_config(void * cfg_blob) { return cfg; } -static int pre_config_vm(struct v3_vm_info * vm, v3_cfg_tree_t * vm_cfg) { + +static inline uint32_t get_alignment(char * align_str) { + // default is 4KB alignment + uint32_t alignment = PAGE_SIZE_4KB; + + if (align_str != NULL) { + if (strcasecmp(align_str, "2MB") == 0) { + alignment = PAGE_SIZE_2MB; + } else if (strcasecmp(align_str, "4MB") == 0) { + alignment = PAGE_SIZE_4MB; + } + } + +#ifndef V3_CONFIG_ALIGNED_PG_ALLOC + if (alignment != PAGE_SIZE_4KB) { + PrintError("Aligned page allocations are not supported in this host (requested alignment=%d)\n", alignment); + PrintError("Ignoring alignment request\n"); + } +#endif + + return alignment; +} +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"); + char * align_str = v3_cfg_val(v3_cfg_subtree(vm_cfg, "memory"), "alignment"); uint32_t sched_hz = 100; // set the schedule frequency to 100 HZ - + + if (!memory_str) { PrintError("Memory is a required configuration parameter\n"); return -1; } PrintDebug("Memory=%s\n", memory_str); + if (align_str) { + PrintDebug("Alignment=%s\n", align_str); + } else { + PrintDebug("Alignment defaulted to 4KB.\n"); + } // Amount of ram the Guest will have, always in MB - vm->mem_size = atoi(memory_str) * 1024 * 1024; - + vm->mem_size = (addr_t)atoi(memory_str) * 1024 * 1024; + vm->mem_align = get_alignment(align_str); + + + PrintDebug("Alignment for %lu bytes of memory computed as 0x%x\n", vm->mem_size, vm->mem_align); + if (strcasecmp(vm_class, "PC") == 0) { vm->vm_class = V3_PC_VM; } else { @@ -208,8 +246,7 @@ static int pre_config_vm(struct v3_vm_info * vm, v3_cfg_tree_t * vm_cfg) { return -1; } - -#ifdef CONFIG_TELEMETRY +#ifdef V3_CONFIG_TELEMETRY { char * telemetry = v3_cfg_val(vm_cfg, "telemetry"); @@ -241,26 +278,54 @@ 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) { - extern v3_cpu_arch_t v3_cpu_types[]; - v3_cfg_tree_t * paging_cfg = v3_cfg_subtree(core_cfg, "paging"); - char * paging = v3_cfg_val(paging_cfg, "mode"); +static int determine_paging_mode(struct guest_info * info, v3_cfg_tree_t * core_cfg) { + extern v3_cpu_arch_t v3_cpu_types[]; + 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)) { + // we assume symmetric cores, so if core 0 has nested paging they all do + if ((v3_cpu_types[0] == V3_SVM_REV3_CPU) || + (v3_cpu_types[0] == V3_VMX_EPT_CPU) || + (v3_cpu_types[0] == V3_VMX_EPT_UG_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"); - + PrintDebug("No paging type specified in configuration. Defaulting to shadow paging\n"); info->shdw_pg_mode = SHADOW_PAGING; } - v3_init_core(info); + if (v3_cfg_val(pg_tree, "large_pages") != NULL) { + if (strcasecmp(v3_cfg_val(pg_tree, "large_pages"), "true") == 0) { + info->use_large_pages = 1; + PrintDebug("Use of large pages in memory virtualization enabled.\n"); + } + } + return 0; +} + +static int pre_config_core(struct guest_info * info, v3_cfg_tree_t * core_cfg) { + if (determine_paging_mode(info, core_cfg) != 0) { + return -1; + } + v3_init_core(info); if (info->vm_info->vm_class == V3_PC_VM) { if (pre_config_pc_core(info, core_cfg) == -1) { @@ -286,9 +351,22 @@ static int post_config_vm(struct v3_vm_info * vm, v3_cfg_tree_t * cfg) { PrintError("Setting up guest memory map failed...\n"); return -1; } - - //v3_hook_io_port(info, 1234, &IO_Read, NULL, info); - + + + if (vm->vm_class == V3_PC_VM) { + if (post_config_pc(vm, cfg) == -1) { + PrintError("PC Post configuration failure\n"); + return -1; + } + } else { + PrintError("Invalid VM Class\n"); + return -1; + } + + + /* + * Initialize configured devices + */ if (setup_devices(vm, cfg) == -1) { PrintError("Failed to setup devices\n"); return -1; @@ -299,16 +377,17 @@ static int post_config_vm(struct v3_vm_info * vm, v3_cfg_tree_t * cfg) { v3_print_msr_map(vm); - if (vm->vm_class == V3_PC_VM) { - if (post_config_pc(vm, cfg) == -1) { - PrintError("PC Post configuration failure\n"); - return -1; - } - } else { - PrintError("Invalid VM Class\n"); + + + /* + * Initialize configured extensions + */ + if (setup_extensions(vm, cfg) == -1) { + PrintError("Failed to setup extensions\n"); return -1; } + return 0; } @@ -316,8 +395,13 @@ static int post_config_vm(struct v3_vm_info * vm, v3_cfg_tree_t * cfg) { static int post_config_core(struct guest_info * info, v3_cfg_tree_t * cfg) { - + info->core_run_state = CORE_STOPPED; + if (v3_init_core_extensions(info) == -1) { + PrintError("Error intializing extension core states\n"); + return -1; + } + if (info->vm_info->vm_class == V3_PC_VM) { if (post_config_pc_core(info, cfg) == -1) { PrintError("PC Post configuration failure\n"); @@ -347,8 +431,8 @@ static struct v3_vm_info * allocate_guest(int num_cores) { -struct v3_vm_info * v3_config_guest(void * cfg_blob) { - v3_cpu_arch_t cpu_type = v3_get_cpu_type(v3_get_cpu_id()); +struct v3_vm_info * v3_config_guest(void * cfg_blob, void * priv_data) { + v3_cpu_arch_t cpu_type = v3_get_cpu_type(V3_Get_CPU()); struct v3_config * cfg_data = NULL; struct v3_vm_info * vm = NULL; int num_cores = 0; @@ -376,7 +460,6 @@ struct v3_vm_info * v3_config_guest(void * cfg_blob) { } num_cores = atoi(v3_cfg_val(cores_cfg, "count")); - if (num_cores == 0) { PrintError("No cores specified in configuration\n"); return NULL; @@ -391,6 +474,8 @@ struct v3_vm_info * v3_config_guest(void * cfg_blob) { return NULL; } + vm->host_priv_data = priv_data; + vm->cfg_data = cfg_data; V3_Print("Preconfiguration\n"); @@ -400,7 +485,6 @@ struct v3_vm_info * v3_config_guest(void * cfg_blob) { return NULL; } - V3_Print("Per core configuration\n"); per_core_cfg = v3_cfg_subtree(cores_cfg, "core"); @@ -408,11 +492,15 @@ 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->vcpu_id = i; info->vm_info = vm; + info->core_cfg_data = per_core_cfg; + + if (pre_config_core(info, per_core_cfg) == -1) { + PrintError("Error in core %d preconfiguration\n", i); + return NULL; + } - pre_config_core(info, per_core_cfg); per_core_cfg = v3_cfg_next_branch(per_core_cfg); } @@ -444,6 +532,17 @@ struct v3_vm_info * v3_config_guest(void * cfg_blob) { +int v3_free_config(struct v3_vm_info * vm) { + + v3_free_htable(vm->cfg_data->file_table, 1, 0); + + v3_xml_free(vm->cfg_data->cfg); + + V3_Free(vm->cfg_data); + return 0; +} + + static int setup_memory_map(struct v3_vm_info * vm, v3_cfg_tree_t * cfg) { @@ -468,6 +567,24 @@ static int setup_memory_map(struct v3_vm_info * vm, v3_cfg_tree_t * cfg) { } +static int setup_extensions(struct v3_vm_info * vm, v3_cfg_tree_t * cfg) { + v3_cfg_tree_t * extension = v3_cfg_subtree(v3_cfg_subtree(cfg, "extensions"), "extension"); + + while (extension) { + char * ext_name = v3_cfg_val(extension, "name"); + + V3_Print("Configuring extension %s\n", ext_name); + + if (v3_add_extension(vm, ext_name, extension) == -1) { + PrintError("Error adding extension %s\n", ext_name); + return -1; + } + + extension = v3_cfg_next_branch(extension); + } + + return 0; +} static int setup_devices(struct v3_vm_info * vm, v3_cfg_tree_t * cfg) { @@ -475,12 +592,12 @@ static int setup_devices(struct v3_vm_info * vm, v3_cfg_tree_t * cfg) { while (device) { - char * id = v3_cfg_val(device, "id"); + char * dev_class = v3_cfg_val(device, "class"); - V3_Print("configuring device %s\n", id); + V3_Print("configuring device %s\n", dev_class); - if (v3_create_device(vm, id, device) == -1) { - PrintError("Error creating device %s\n", id); + if (v3_create_device(vm, dev_class, device) == -1) { + PrintError("Error creating device %s\n", dev_class); return -1; } @@ -494,4 +611,3 @@ static int setup_devices(struct v3_vm_info * vm, v3_cfg_tree_t * cfg) { -