From: John Tsiombikas <nuclear@member.fsf.org>
Date: Mon, 4 Jul 2022 14:41:56 +0000 (+0300)
Subject: fixed the boot services offset
X-Git-Url: http://git.mutantstargoat.com/user/nuclear/?p=efitest2;a=commitdiff_plain;h=HEAD

fixed the boot services offset
---

diff --git a/efitest.asm b/efitest.asm
index 2cc79a2..1a8e212 100644
--- a/efitest.asm
+++ b/efitest.asm
@@ -5,7 +5,7 @@
 
 	; EFI_SYSTEM_TABLE offsets
 SIMPLE_TEXT_OUTPUT	equ 64
-BOOT_SERVICES		equ 80
+BOOT_SERVICES		equ 96
 
 	; EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL function offsets
 TEXT_OUT_STRING		equ 8
@@ -58,11 +58,11 @@ start:
 	lea r9, [mmap_descsz]
 	lea rax, [mmap_descver]
 	push rax
-	push rax
+	sub rsp, 32
 	mov rax, [systab]
 	mov rbx, [rax + BOOT_SERVICES]
 	call [rbx + BOOT_GET_MEMORY_MAP]
-	add rsp, 16
+	add rsp, 40
 
 	mov rcx, [efihandle]
 	mov rdx, [mmap_key]
@@ -70,6 +70,11 @@ start:
 	mov rbx, [rax + BOOT_SERVICES]
 	call [rbx + BOOT_EXIT_BOOT_SERVICES]
 
+	mov edi, 0a0000h
+	mov ecx, 16000
+	mov eax, 00ff0000h
+	rep stosd
+
 .hang:	jmp .hang
 
 get_rip:
@@ -119,7 +124,7 @@ str_hello dw __utf16__(`qurashee!\r\n`),0
 
 	align 8
 ; memory map data
-mmap_size dq 0
+mmap_size dq 4096
 mmap_key dq 0
 mmap_descsz dq 0
 mmap_descver dq 0