setos

commit 09dcf5409ce00122ecb34954ff60b45b6d1a957a
parent ac9795006358408d2b8048c5a10884d56758e5dd
Author: Matsuda Kenji <info@mtkn.jp>
Date:   Tue, 26 Mar 2024 12:43:57 +0900

load kernel to the memory. page fault

Diffstat:
M
loader.c
 | 
16
+++++++++++++++-
M
uefi.h
 | 
30
++++++++++++++++++++++++++++++

2 files changed, 45 insertions(+), 1 deletion(-)
diff --git a/loader.c b/loader.c
@@ -57,12 +57,26 @@ EfiMain(EFI_HANDLE ImageHandle, EFI_SYSTEM_TABLE *systab)
 	}
 
 	EFI_PHYSICAL_ADDRESS kernel_base = 0x100000;
-	stat = kernel->Read(kernel, 10, (VOID *)kernel_base);
+	UINTN fib_size = 1024;
+	char fibuf[1024];
+	EFI_FILE_INFO *fileInfo = (EFI_FILE_INFO *) fibuf;
+	stat = kernel->GetInfo(kernel, &EFI_FILE_INFO_ID, &fib_size, (VOID *)fibuf);
+	if (stat != EFI_SUCCESS) {
+		efi_printf("get info of \"kernel.elf\": %d\n", stat);
+		return stat;
+	}
+	efi_printf("file size: %d\n", fileInfo->FileSize);
+
+	UINTN kernel_size = 1024;
+	stat = kernel->Read(kernel, &kernel_size, (VOID *)kernel_base);
 	if (stat != EFI_SUCCESS) {
 		efi_printf("read file \"kernel.elf\": %d\n", stat);
 		return stat;
 	}
 
+	typedef void (* Kernel) (void);
+	((Kernel) kernel_base)();
+
 	stat = kernel->Close(kernel);
 	if (stat != EFI_SUCCESS) {
 		efi_printf("close file: %d\n", stat);
diff --git a/uefi.h b/uefi.h
@@ -7,6 +7,7 @@
 typedef unsigned short CHAR16;
 typedef unsigned long long UINTN;
 typedef unsigned char UINT8;
+typedef short INT16;
 typedef unsigned short UINT16;
 typedef unsigned UINT32;
 typedef unsigned long long UINT64;
@@ -28,6 +29,10 @@ typedef struct EFI_GUID {
 #define EFI_SIMPLE_FILE_SYSTEM_PROTOCOL_GUID \
 	((EFI_GUID) {0x964e5b22, 0x6459, 0x11d2, \
 		{0x8e, 0x39, 0x00, 0xa0, 0xc9, 0x69, 0x72, 0x3b}})
+#define EFI_FILE_INFO_ID \
+	((EFI_GUID) {0x9576e92, 0x6d3f, 0x11d2, \
+		{0x8e, 0x39, 0x00, 0xa0, 0xc9, 0x69, 0x72, 0x3b}})
+
 
 // EFI_STATUS
 enum {
@@ -161,6 +166,31 @@ struct _EFI_FILE_PROTOCOL {
 	void *dummy1[6];
 };
 
+typedef struct {
+	UINT16 Year;
+	UINT8  Month;
+	UINT8  Day;
+	UINT8  Hour;
+	UINT8  Minute;
+	UINT8  Second;
+	UINT8  Pad1;
+	UINT32 NanoSecond;
+	INT16  TimeZone;
+	UINT8  Daylight;
+	UINT8  Pad2;
+} EFI_TIME;
+
+typedef struct {
+	UINT64   Size;
+	UINT64   FileSize;
+	UINT64   PhysicalSize;
+	EFI_TIME CreateTime;
+	EFI_TIME LastAccessTime;
+	EFI_TIME ModificationTime;
+	UINT64   Attribute;
+	CHAR16   FileName[];
+} EFI_FILE_INFO;
+
 typedef struct _EFI_LOADED_IMAGE_PROTOCOL EFI_LOADED_IMAGE_PROTOCOL;
 
 struct _EFI_LOADED_IMAGE_PROTOCOL{