From 2ad0410ebcb1d468cdb00f7f28640109af6b3ddb Mon Sep 17 00:00:00 2001
From: Jeremy Soller <jackpot51@gmail.com>
Date: Tue, 13 Jun 2017 20:15:25 -0600
Subject: [PATCH] Pass arguments for kernel size, stack size to kernel
---
x86_64/startup-x86_64.asm | 18 +++++++++++++++---
1 file changed, 15 insertions(+), 3 deletions(-)
diff --git a/x86_64/startup-x86_64.asm b/x86_64/startup-x86_64.asm
index 6059331..963d72b 100644
--- a/x86_64/startup-x86_64.asm
+++ b/x86_64/startup-x86_64.asm
@@ -122,9 +122,21 @@ long_mode:
mov gs, rax
mov ss, rax
- mov rsp, 0xFFFFFF000009F000
-
- ;rust init
+ ; kernel_base
+ mov rdi, kernel_base
+ ; kernel_size
+ mov rsi, kernel_file.length
+ ; stack_base
+ mov rdx, 0xFFFFFF0000080000
+ ; stack_size
+ mov rcx, 0x1F000
+
+ ; set stack pointer
+ mov rsp, rdx
+ add rsp, rcx
+ sub rsp, 256
+
+ ; entry point
mov rax, [kernel_base + 0x18]
jmp rax
--
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