0,0 → 1,144 |
/* |
* Copyright (c) 2008 Jakub Jermar |
* All rights reserved. |
* |
* Redistribution and use in source and binary forms, with or without |
* modification, are permitted provided that the following conditions |
* are met: |
* |
* - Redistributions of source code must retain the above copyright |
* notice, this list of conditions and the following disclaimer. |
* - Redistributions in binary form must reproduce the above copyright |
* notice, this list of conditions and the following disclaimer in the |
* documentation and/or other materials provided with the distribution. |
* - The name of the author may not be used to endorse or promote products |
* derived from this software without specific prior written permission. |
* |
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
*/ |
|
/** @addtogroup ia32mm |
* @{ |
*/ |
/** @file |
* @ingroup ia32mm, amd64mm |
*/ |
|
#include <mm/frame.h> |
#include <arch/mm/frame.h> |
#include <mm/as.h> |
#include <config.h> |
#include <arch/boot/boot.h> |
#include <arch/boot/memmap.h> |
#include <panic.h> |
#include <debug.h> |
#include <align.h> |
#include <macros.h> |
|
#include <print.h> |
|
size_t hardcoded_unmapped_ktext_size = 0; |
size_t hardcoded_unmapped_kdata_size = 0; |
|
uintptr_t last_frame = 0; |
|
static void init_e820_memory(pfn_t minconf) |
{ |
unsigned int i; |
pfn_t start, conf; |
size_t size; |
|
for (i = 0; i < e820counter; i++) { |
if (e820table[i].type == MEMMAP_MEMORY_AVAILABLE) { |
start = ADDR2PFN(ALIGN_UP(e820table[i].base_address, FRAME_SIZE)); |
size = SIZE2FRAMES(ALIGN_DOWN(e820table[i].size, FRAME_SIZE)); |
|
if ((minconf < start) || (minconf >= start + size)) |
conf = start; |
else |
conf = minconf; |
|
zone_create(start, size, conf, 0); |
|
if (last_frame < ALIGN_UP(e820table[i].base_address + |
e820table[i].size, FRAME_SIZE)) |
last_frame = |
ALIGN_UP(e820table[i].base_address + e820table[i].size, FRAME_SIZE); |
} |
} |
} |
|
static char *e820names[] = { |
"invalid", |
"available", |
"reserved", |
"acpi", |
"nvs", |
"unusable" |
}; |
|
|
void physmem_print(void) |
{ |
unsigned int i; |
char *name; |
|
printf("Base Size Name\n"); |
printf("------------------ ------------------ ---------\n"); |
|
for (i = 0; i < e820counter; i++) { |
if (e820table[i].type <= MEMMAP_MEMORY_UNUSABLE) |
name = e820names[e820table[i].type]; |
else |
name = "invalid"; |
|
printf("%#18llx %#18llx %s\n", e820table[i].base_address, |
e820table[i].size, name); |
} |
} |
|
|
void frame_arch_init(void) |
{ |
pfn_t minconf; |
|
if (config.cpu_active == 1) { |
minconf = 1; |
#ifdef CONFIG_SMP |
minconf = max(minconf, |
ADDR2PFN(AP_BOOT_OFFSET + hardcoded_unmapped_ktext_size + |
hardcoded_unmapped_kdata_size)); |
#endif |
#ifdef CONFIG_SIMICS_FIX |
minconf = max(minconf, ADDR2PFN(0x10000)); |
#endif |
init_e820_memory(minconf); |
|
/* Reserve frame 0 (BIOS data) */ |
frame_mark_unavailable(0, 1); |
|
#ifdef CONFIG_SMP |
/* Reserve AP real mode bootstrap memory */ |
frame_mark_unavailable(AP_BOOT_OFFSET >> FRAME_WIDTH, |
(hardcoded_unmapped_ktext_size + |
hardcoded_unmapped_kdata_size) >> FRAME_WIDTH); |
|
#ifdef CONFIG_SIMICS_FIX |
/* Don't know why, but these addresses help */ |
frame_mark_unavailable(0xd000 >> FRAME_WIDTH, 3); |
#endif |
#endif |
} |
} |
|
/** @} |
*/ |