更新smbios

Author: xiaoyi1212

src/driver/smbios.c

@@ -15,7 +15,8 @@ static __volatile__ struct limine_smbios_request smbios_request = {
 int smbios_major_version(void) {
     struct EntryPoint64 *entry = (struct EntryPoint64 *) smbios_request.response->entry_64;
     if(entry == NULL){
-        return -1;
+        struct EntryPoint32 *entry32 = (struct EntryPoint32 *) smbios_request.response->entry_32;
+        return entry32 == NULL ? -1 : entry32->SMBIOSMajorVersion;
     }
     return entry->SMBIOSMajorVersion;
 }
@@ -24,7 +25,8 @@ int smbios_major_version(void) {
 int smbios_minor_version(void) {
     struct EntryPoint64 *entry = (struct EntryPoint64 *) smbios_request.response->entry_64;
     if(entry == NULL){
-        return -1;
+        struct EntryPoint32 *entry32 = (struct EntryPoint32 *)smbios_request.response->entry_32;
+        return entry32 == NULL ? -1 : entry32->SMBIOSMinorVersion;
     }
     return entry->SMBIOSMinorVersion;
 }

src/include/smbios.h

@@ -20,6 +20,23 @@ struct EntryPoint64 {
 	uint64_t StructureTableAddress;	// 结构表地址
 };
 
+struct EntryPoint32 {
+    char AnchorString[4];
+    uint8_t EntryPointChecksum;		// 入口点校验和
+    uint8_t EntryPointLength;		// 入口点结构长度
+    uint8_t SMBIOSMajorVersion;		// SMBIOS主版本
+    uint8_t SMBIOSMinorVersion;		// SMBIOS次版本
+    uint8_t SMBIOSDocrev;			// 文档修订版
+    uint8_t EntryPointRevision;		// 入口点修订版
+    uint8_t FormattedArea[5];       // 保留
+    uint8_t IntermediateAnchorString[5];
+    uint8_t IntermediateChecksum;
+    uint16_t StructureTableMaxSize;	// 结构表最大大小
+    uint32_t StructureTableAddress;	// 结构表地址
+    uint16_t NumberOfStructures;    // 结构数量
+    uint8_t BCDRevision;            // BCD修订
+};
+
 /* 结构表头部 */
 struct Header {
 	uint8_t type;		// 结构类型