setos

commit 5b7bd0f5c338ca4b909167a69cf1401bc675b450
parent bb8e448454814a866eee68ba5ec664291d2baff4
Author: Matsuda Kenji <info@mtkn.jp>
Date:   Tue, 19 Mar 2024 11:46:43 +0900

rename hello.c to loader.c and add kernel.c

Diffstat:
A
kernel.c
 | 
0

A
loader.c
 | 
51
+++++++++++++++++++++++++++++++++++++++++++++++++++

2 files changed, 51 insertions(+), 0 deletions(-)
diff --git a/kernel.c b/kernel.c
diff --git a/loader.c b/loader.c
@@ -0,0 +1,51 @@
+#include "uefi.h"
+#include "utils.h"
+
+EFI_SYSTEM_TABLE *SystemTable;
+
+EFI_STATUS
+EfiMain(EFI_HANDLE ImageHandle, EFI_SYSTEM_TABLE *systab)
+{
+	// init global variable.
+	SystemTable = systab;
+
+	EFI_STATUS stat;
+	char s8[32];
+
+	// Output firmware bender.
+	SystemTable->ConOut->ClearScreen(SystemTable->ConOut);
+	efi_printf("vendor: %s\n", wstr2str(SystemTable->FirmwareVendor, s8));
+
+	// Output memory map information.
+	UINTN                 mmsize = 8196;
+	char                  mmbuf[8196];
+	EFI_MEMORY_DESCRIPTOR *mmap;
+	UINTN                 mkey;
+	UINTN                 dsize;
+	UINT32                dver;
+	mmap = (EFI_MEMORY_DESCRIPTOR *) mmbuf;
+	stat = SystemTable->BootServices->GetMemoryMap(&mmsize, mmap, &mkey, &dsize, &dver);
+	if (stat != EFI_SUCCESS) {
+		return stat;
+	}
+
+	for (; mmap < (EFI_MEMORY_DESCRIPTOR *)(mmbuf + mmsize);
+		mmap = (EFI_MEMORY_DESCRIPTOR *) (((char *)mmap) + dsize)) {
+		if (mmap->Type != EfiConventionalMemory) {
+			continue;
+		}
+		efi_printf("%d\t%x\t%x\t%x\t%x\n", mmap->Type, mmap->VirtualStart,
+			mmap->PhysicalStart, mmap->NumberOfPages, mmap->Attribute);
+	}
+
+	// Echo back user input.
+	EFI_INPUT_KEY Key;
+	CHAR16 str[2] = {' ', '\0'};
+	while(1) {
+		SystemTable->ConIn->ReadKeyStroke(SystemTable->ConIn, &Key);
+		str[0] = Key.UnicodeChar;
+		SystemTable->ConOut->OutputString(SystemTable->ConOut, str);
+	}
+
+	return EFI_SUCCESS;
+}