add ability to load custom BIOS ROMs.

[palacios.git] / palacios / src / palacios / vmm_config_class.h

diff --git a/palacios/src/palacios/vmm_config_class.h b/palacios/src/palacios/vmm_config_class.h
index 36fee9b..9a508bd 100644 (file)
--- a/palacios/src/palacios/vmm_config_class.h
+++ b/palacios/src/palacios/vmm_config_class.h
@@ -17,11 +17,11 @@
  * redistribute, and modify it as specified in the file "V3VEE_LICENSE".
  */
 
+#include <palacios/vm_guest_mem.h>
 
-static int post_config_pc(struct guest_info * info, struct v3_config * config_ptr) {
 
+static int pre_config_pc_core(struct guest_info * info, v3_cfg_tree_t * cfg) { 
 
-    info->cpu_mode = REAL;
     info->mem_mode = PHYSICAL_MEM;
 
 
@@ -34,29 +34,122 @@ static int post_config_pc(struct guest_info * info, struct v3_config * config_pt
     info->vm_regs.rcx = 0;
     info->vm_regs.rax = 0;
 
+    return 0;
+}
+
+static int post_config_pc_core(struct guest_info * info, v3_cfg_tree_t * cfg) { 
+
+    v3_print_mem_map(info->vm_info);
+    return 0;
+}
+
+static int post_config_pc(struct v3_vm_info * vm, v3_cfg_tree_t * cfg) {
+
+    v3_cfg_tree_t * bios_tree = NULL;
+    v3_cfg_tree_t * bios_list = NULL;
+
+    bios_tree = v3_cfg_subtree(cfg, "bioses");
+
+
+    if (!v3_cfg_val(bios_tree, "disable_vgabios")) {
+
+#if defined(V3_CONFIG_SEABIOS) || defined(V3_CONFIG_BOCHSBIOS)
 
 #define VGABIOS_START 0x000c0000
-#define ROMBIOS_START 0x000f0000
-    
-    /* layout vgabios */
-    {
-       extern uint8_t v3_vgabios_start[];
-       extern uint8_t v3_vgabios_end[];
-       
-       addr_t vgabios_dst = v3_get_shadow_addr(&(info->mem_map.base_region), VGABIOS_START);
-       memcpy(V3_VAddr((void *)vgabios_dst), v3_vgabios_start, v3_vgabios_end - v3_vgabios_start);     
+        /* layout vgabios */
+        {
+            extern uint8_t v3_vgabios_start[];
+            extern uint8_t v3_vgabios_end[];
+            void * vgabios_dst = 0;
+
+            if (v3_gpa_to_hva(&(vm->cores[0]), VGABIOS_START, (addr_t *)&vgabios_dst) == -1) {
+                PrintError(vm, VCORE_NONE, "Could not find VGABIOS destination address\n");
+                return -1;
+            }
+
+            V3_Print(vm,VCORE_NONE,"Mapping VGA BIOS of %llu bytes at address %p\n", (uint64_t)(v3_vgabios_end-v3_vgabios_start), (void*)VGABIOS_START);
+            memcpy(vgabios_dst, v3_vgabios_start, v3_vgabios_end - v3_vgabios_start);  
+        }
+
+#endif
+
     }
-    
-    /* layout rombios */
-    {
-       extern uint8_t v3_rombios_start[];
-       extern uint8_t v3_rombios_end[];
-
-       addr_t rombios_dst = v3_get_shadow_addr(&(info->mem_map.base_region), ROMBIOS_START);
-       memcpy(V3_VAddr((void *)rombios_dst), v3_rombios_start, v3_rombios_end - v3_rombios_start);
+
+
+    if (!v3_cfg_val(bios_tree, "disable_rombios")) {
+
+        /* layout rombios */
+        {
+            extern uint8_t v3_rombios_start[];
+            extern uint8_t v3_rombios_end[];
+            void * rombios_dst = 0;
+
+
+
+            if (v3_gpa_to_hva(&(vm->cores[0]), V3_CONFIG_BIOS_START, (addr_t *)&rombios_dst) == -1) {
+                PrintError(vm, VCORE_NONE, "Could not find ROMBIOS destination address\n");
+                return -1;
+            }
+
+            V3_Print(vm,VCORE_NONE,"Mapping BIOS of %llu bytes at address %p\n", (uint64_t)(v3_rombios_end-v3_rombios_start), (void*)V3_CONFIG_BIOS_START);
+            memcpy(rombios_dst, v3_rombios_start, v3_rombios_end - v3_rombios_start);
+
+#ifdef V3_CONFIG_SEABIOS
+            // SEABIOS is also mapped into end of 4GB region
+            if (v3_add_shadow_mem(vm, V3_MEM_CORE_ANY, 
+                        0xfffe0000, 0xffffffff,
+                        (addr_t)V3_PAddr(rombios_dst)) == -1) {
+                PrintError(vm, VCORE_NONE, "Error mapping SEABIOS to end of memory\n");
+                return -1;
+            }
+            V3_Print(vm,VCORE_NONE,"Additionally mapping SEABIOS of %llu bytes at address %p\n", (uint64_t)(v3_rombios_end-v3_rombios_start), (void*)0xfffe0000);
+#endif
+
+        }
     }
 
-    v3_print_mem_map(info);
+    bios_list = v3_cfg_subtree(bios_tree, "bios");
+
+    while (bios_list) {
+        char * id = v3_cfg_val(bios_list, "file");
+        char * addr = v3_cfg_val(bios_list, "address");
+        uint64_t file_ptr = 0;
+        void * dest = NULL;
+        struct v3_cfg_file * file = NULL;
+
+        if (!id) {
+            PrintError(vm, VCORE_NONE, "Could not find bios file\n");
+            continue;
+        }
+
+        if (!addr) {
+            PrintError(vm, VCORE_NONE, "Could not find bios address\n");
+            continue;
+        }
+
+        file = v3_cfg_get_file(vm, id);
+        if (!file) {
+            PrintError(vm, VCORE_NONE, "Invalid BIOS file: %s\n", id);
+            continue;
+        }
+
+        file_ptr = atox(addr);
+
+        V3_Print(vm, VCORE_NONE, "Copying BIOS ROM (%s) to %p (size=%lld)\n", 
+                 id,
+                 (void*)file_ptr,
+                 file->size);
+
+        if (v3_gpa_to_hva(&(vm->cores[0]), (addr_t)file_ptr, (addr_t *)&dest) == -1) {
+            PrintError(vm, VCORE_NONE, "Could not find BIOS (%s) destination address\n", id);
+            continue;
+        }
+
+        memcpy((void*)dest, file->data, file->size);
+
+        V3_Print(vm, VCORE_NONE, "Moving on to next BIOS file\n");
+        bios_list = v3_cfg_next_branch(bios_list);
+    }
 
     return 0;
 }