# HG changeset patch
# User Paul Boddie <paul@boddie.org.uk>
# Date 1456786671 -3600
# Node ID e4db1ec10bca955b4603166eaf54d129a72c7ac4
# Parent  0f7a8fdc67b736dc7d148761ff12c07ca4d593ae
Switched to mapped stack regions, keeping stack pointers within their regions.

diff -r 0f7a8fdc67b7 -r e4db1ec10bca stage2/irq.c
--- a/stage2/irq.c	Mon Feb 29 21:47:48 2016 +0100
+++ b/stage2/irq.c	Mon Feb 29 23:57:51 2016 +0100
@@ -55,7 +55,7 @@
 
 extern u32 _got_copy_start;
 
-const u32 stack_start = 0x80080000;
+const u32 stack_start = 0x00080000;
 const u32 stack_size = 0x00002000;
 const u32 pagesize = 4 * 1024;
 
@@ -131,7 +131,7 @@
 
 	init_page_table(page_table_start, virtual - pagesize * 2, physical - pagesize * 2, pagesize, 0x1e, task);
 
-	stack_pointers[task] = virtual;
+	stack_pointers[task] = virtual - 12;
 
 	/*
 	Set the registers for the new task, initialising the global pointer and