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issue 51 and 52: set mtrr for ap before stop it, and _RAMBASE above 1M

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support and pgtbl after 1M support


git-svn-id: svn://svn.coreboot.org/coreboot/trunk@2142 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
This commit is contained in:
Yinghai Lu
2005-12-14 02:39:33 +00:00
parent f42e1770f9
commit 72ee9b0ebe
7 changed files with 139 additions and 24 deletions
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23
src/config/linuxbios_ram.ld
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@@ -15,6 +15,7 @@
/*
* Written by Johan Rydberg, based on work by Daniel Kahlin.
* Rewritten by Eric Biederman
* 2005.12 yhlu add linuxbios_ram cross the vga font buffer handling
*/
/*
* We use ELF as output format. So that we can
@@ -91,21 +92,25 @@ SECTIONS
_stack = .;
.stack . : {
/* Reserve a stack for each possible cpu */
. = (CONFIG_MAX_CPUS * STACK_SIZE) ;
/* the stack for ap will be put after pgtbl in 1M to CONFIG_LB_MEM_TOPK range when VGA and ROM_RUN and CONFIG_LB_MEM_TOPK>1024*/
. = ((CONFIG_CONSOLE_VGA || CONFIG_PCI_ROM_RUN)&&(_RAMBASE<0x100000)&&((CONFIG_LB_MEM_TOPK<<10)>0x100000) ) ? STACK_SIZE : (CONFIG_MAX_CPUS*STACK_SIZE);
}
_estack = .;
_heap = .;
.heap . : {
/* Reserve 256K for the heap */
. = HEAP_SIZE ;
. = ALIGN(4);
}
_eheap = .;
_heap = .;
.heap . : {
/* Reserve 256K for the heap */
. = HEAP_SIZE ;
. = ALIGN(4);
}
_eheap = .;
/* The ram segment
* This is all address of the memory resident copy of linuxBIOS.
*/
_ram_seg = _text;
_ram_seg = _text;
_eram_seg = _eheap;
_bogus = ASSERT( !((CONFIG_CONSOLE_VGA || CONFIG_PCI_ROM_RUN) && ((_ram_seg<0xa0000) && (_eram_seg>0xa0000))) , "please increase CONFIG_LB_MEM_TOPK and if still fail, try to set _RAMBASE more than 1M");
/DISCARD/ : {
*(.comment)
*(.note)