add a few multiboot2 info structures

src/multiboot2.h

@@ -68,6 +68,39 @@ typedef struct {
 #define multiboot2_info_next_tag(current_tag) \
     (multiboot2_info_tag_t *)(((uintptr_t)current_tag + current_tag->size + MULTIBOOT2_INFO_TAG_ALIGNMENT - 1u) & ~(MULTIBOOT2_INFO_TAG_ALIGNMENT - 1u))
 
+typedef struct {
+    multiboot2_info_tag_t header;
+    uint8_t string[];
+} multiboot2_info_boot_loader_name_t;
+
+typedef struct {
+    multiboot2_info_tag_t header;
+    uint32_t mem_lower;
+    uint32_t mem_upper;
+} multiboot2_info_basic_memory_info_t;
+
+typedef struct {
+    multiboot2_info_tag_t header;
+    uint32_t entry_size;
+    uint32_t entry_version;
+    struct {
+        uint64_t base_addr;
+        uint64_t length;
+        uint32_t type;
+        uint32_t _reserved;
+    } entries[];
+} multiboot2_info_memory_map_t;
+
+typedef struct {
+    multiboot2_info_tag_t header;
+    uint16_t vbe_mode;
+    uint16_t vbe_interface_set;
+    uint16_t vbe_interface_off;
+    uint16_t vbe_interface_len;
+    uint8_t vbe_control_info[512];
+    uint8_t vbe_mode_info[256];
+} multiboot2_info_vbe_info_t;
+
 typedef struct {
     multiboot2_info_tag_t header;
     uint64_t framebuffer_addr;