elilo/x86_64/system.c

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/*
* Copyright (C) 2001-2003 Hewlett-Packard Co.
* Contributed by Stephane Eranian <eranian@hpl.hp.com>
* Contributed by Mike Johnston <johnston@intel.com>
* Contributed by Chris Ahna <christopher.j.ahna@intel.com>
* Contributed by Fenghua Yu <fenghua.yu@intel.com>
* Contributed by Bibo Mao <bibo.mao@intel.com>
* Contributed by chandramouli narayanan <mouli@linux.intel.com>
* Edgar Hucek <hostmaster@ed-soft.at>
*
* Updated with code to fill bootparam converting EFI memory map to E820
* based on a Linux kernel patch provided by Edgar Hucek
* - mouli 06/20/2007
*
* This file is part of the ELILO, the EFI Linux boot loader.
*
* ELILO is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2, or (at your option)
* any later version.
*
* ELILO is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with ELILO; see the file COPYING. If not, write to the Free
* Software Foundation, 59 Temple Place - Suite 330, Boston, MA
* 02111-1307, USA.
*
* Please check out the elilo.txt for complete documentation on how
* to use this program.
*/
/*
* This file contains all the x86_64 specific code expected by generic loader
*/
#include <efi.h>
#include <efilib.h>
#include <string.h>
#include "elilo.h"
#include "loader.h"
#include "rmswitch.h"
#define DEBUG_CREATE_BOOT_PARAMS 0
#if DEBUG_CREATE_BOOT_PARAMS
#define DPR(a) do { if (elilo_opt.debug) { Print a; } } while ( 0 )
#else
#define DPR(a)
#endif
extern loader_ops_t bzimage_loader, plain_loader, gzip_loader;
/*
* Descriptor table base addresses & limits for Linux startup.
*/
dt_addr_t gdt_addr = { 0x800, 0x94000 };
dt_addr_t idt_addr = { 0, 0 };
/*
* Initial GDT layout for Linux startup.
*/
UINT16 init_gdt[] = {
/* gdt[0]: dummy */
0, 0, 0, 0,
/* gdt[1]: unused */
0, 0, 0, 0,
/* gdt[2]: code */
0xFFFF, /* 4Gb - (0x100000*0x1000 = 4Gb) */
0x0000, /* base address=0 */
0x9A00, /* code read/exec */
0x00CF, /* granularity=4096, 386 (+5th nibble of limit) */
/* gdt[3]: data */
0xFFFF, /* 4Gb - (0x100000*0x1000 = 4Gb) */
0x0000, /* base address=0 */
0x9200, /* data read/write */
0x00CF, /* granularity=4096, 386 (+5th nibble of limit) */
};
UINTN sizeof_init_gdt = sizeof init_gdt;
/*
* Highest available base memory address.
*
* For traditional kernels and loaders this is always at 0x90000.
* For updated kernels and loaders this is computed by taking the
* highest available base memory address and rounding down to the
* nearest 64 kB boundary and then subtracting 64 kB.
*
* A non-compressed kernel is automatically assumed to be an updated
* kernel. A compressed kernel that has bit 6 (0x40) set in the
* loader_flags field is also assumed to be an updated kernel.
*/
UINTN high_base_mem = 0x90000;
/*
* Highest available extended memory address.
*
* This is computed by taking the highest available extended memory
* address and rounding down to the nearest EFI_PAGE_SIZE (usually
* 4 kB) boundary.
* This is only used for backward compatibility.
*/
UINTN high_ext_mem = 32 * 1024 * 1024;
/* This starting address will hold true for all of the loader types for now */
VOID *kernel_start = (VOID *)DEFAULT_KERNEL_START;
/* The kernel may load elsewhere if EFI firmware reserves kernel_start */
VOID *kernel_load_address = (VOID *)DEFAULT_KERNEL_START;
VOID *initrd_start = NULL;
UINTN initrd_size = 0;
INTN e820_map_overflow = 0;
INTN
sysdeps_init(EFI_HANDLE dev)
{
DBG_PRT((L"sysdeps_init()\n"));
/*
* Register our loader(s)...
*/
loader_register(&bzimage_loader);
loader_register(&plain_loader);
loader_register(&gzip_loader);
return 0;
}
/*
* initrd_get_addr()
* Compute a starting address for the initial RAMdisk image.
* For now we suggest 'initrd_addr_max' with room for 32MB,
* as image->pgcnt is not initialized yet.
*/
INTN
sysdeps_initrd_get_addr(kdesc_t *kd, memdesc_t *imem)
{
DBG_PRT((L"initrd_get_addr()\n"));
if (!kd || !imem) {
ERR_PRT((L"kd="PTR_FMT" imem="PTR_FMT"", kd, imem));
return -1;
}
VERB_PRT(3, Print(L"initrd_addr_max="PTR_FMT" reserve=%d\n",
param_start->s.initrd_addr_max, 32*MB));
imem->start_addr = (VOID *)
(((UINT64)param_start->s.initrd_addr_max - 32*MB + 1)
& ~EFI_PAGE_MASK);
VERB_PRT(3, Print(L"initrd start_addr="PTR_FMT" pgcnt=%d\n",
imem->start_addr, imem->pgcnt));
return 0;
}
/*
* checkfix_initrd()
* Check and possibly fix allocation of initrd memory.
*/
VOID *
sysdeps_checkfix_initrd(VOID *start_addr, memdesc_t *imem)
{
UINTN pgcnt = EFI_SIZE_TO_PAGES(imem->size);
UINT64 initrd_addr_max = (UINT64)param_start->s.initrd_addr_max;
UINT64 ki_max = initrd_addr_max - imem->size + 1;
VOID *ki_max_addr;
VERB_PRT( 3, Print(L"loadfile: start_addr="PTR_FMT
" ki_max_addr="PTR_FMT"\n", start_addr, (VOID *)ki_max));
if (ki_max > UINT32_MAX) {
ERR_PRT((L"Force kernel specified initrd_addr_max="PTR_FMT
" below 4GB\n", (VOID *)initrd_addr_max));
ki_max = UINT32_MAX - imem->size + 1;
}
ki_max_addr = (VOID *)ki_max;
if ((UINT64)start_addr > ki_max) {
VERB_PRT(1, Print(L"initrd start_addr="PTR_FMT" above "
"limit="PTR_FMT"\n", start_addr, ki_max_addr));
free(start_addr);
start_addr = NULL;
}
/* so either the initial allocation failed or it's been to high! */
if (start_addr == NULL) {
start_addr = alloc_pages(pgcnt, EfiLoaderData,
AllocateMaxAddress, ki_max_addr);
}
if ((UINT64)start_addr > ki_max) {
ERR_PRT((L"Failed to allocate %d pages below %dMB",
pgcnt, (param_start->s.initrd_addr_max+1)>>20));
free(start_addr);
start_addr = NULL;
}
return start_addr;
}
VOID
sysdeps_free_boot_params(boot_params_t *bp)
{
mmap_desc_t md;
ZeroMem(&md, sizeof md);
md.md = (VOID *)(UINT64)bp->s.efi_mem_map;
free_memmap(&md);
}
static VOID find_bits(unsigned long mask, UINT8 *first, UINT8* len) {
unsigned char bit_pos = 0, bit_len = 0;
*first =0;
*len = 0;
if (mask == 0)
return;
while (!(mask & 0x1)) {
mask = mask >> 1;
bit_pos++;
}
while (mask & 0x1) {
mask = mask >> 1;
bit_len++;
}
*first = bit_pos;
*len = bit_len;
}
/*
* Get video information.
*/
static INTN get_video_info(boot_params_t * bp) {
EFI_GUID GopProtocol = EFI_GRAPHICS_OUTPUT_PROTOCOL_GUID;
EFI_GRAPHICS_OUTPUT_PROTOCOL *Gop_interface;
EFI_GRAPHICS_OUTPUT_MODE_INFORMATION *Gop_info;
EFI_GRAPHICS_OUTPUT_PROTOCOL_MODE *Gop_mode = NULL;
EFI_HANDLE *Gop_handle = NULL;
EFI_STATUS efi_status;
UINTN size = 0;
UINTN size1;
UINT8 i;
if (x86_64_text_mode() == 1) {
Print((L"Skip GOP init, force text-mode.\n"));
return -1;
}
efi_status = uefi_call_wrapper(
BS->LocateHandle,
5,
ByProtocol,
&GopProtocol,
NULL,
&size,
(VOID **)Gop_handle);
if (EFI_ERROR(efi_status) && efi_status != EFI_BUFFER_TOO_SMALL) {
Print(L"LocateHandle GopProtocol failed.\n");
Print(L"--Either no graphics head is installed,\n" \
"--efi console is set to serial, or,\n" \
"--the EFI firmware version of this machine is\n" \
"--older than UEFI 2.0. and does not support GOP");
Print(L"you can SAFELY IGNORE this error. elilo will\n" \
"default to text-mode.\n Alternatively you can " \
"now force text mode by setting config variable\n" \
"text_mode=1 for x86 in elilo.conf or via cmdline.\n\n");
Print(L"However if this is the last text output you see\n" \
"ensure that your kernel console command line\n " \
"variable matches up with the actual efi boot menu\n" \
"console output settings.\n\n");
return -1;
}
Gop_handle = alloc(size, 0);
efi_status = uefi_call_wrapper(
BS->LocateHandle,
5,
ByProtocol,
&GopProtocol,
NULL,
&size,
(VOID **)Gop_handle);
if (EFI_ERROR(efi_status)) {
ERR_PRT((L"LocateHandle GopProtocol failed."));
free(Gop_handle);
return -1;
}
for (i=0; i < size/sizeof(EFI_HANDLE); i++) {
Gop_handle += i;
efi_status = uefi_call_wrapper(
BS->HandleProtocol,
3,
*Gop_handle,
&GopProtocol,
&Gop_interface);
if (EFI_ERROR(efi_status)) {
continue;
}
Gop_mode = Gop_interface->Mode;
efi_status = uefi_call_wrapper(
Gop_interface->QueryMode,
4,
Gop_interface,
Gop_mode->Mode,
&size1,
&Gop_info);
if (!EFI_ERROR(efi_status))
break;
if (EFI_ERROR(efi_status)) {
continue;
}
}
if (EFI_ERROR(efi_status) || i > (size/sizeof(EFI_HANDLE))) {
ERR_PRT((L"HandleProtocol GopProtocol failed."));
free(Gop_handle);
return -1;
}
bp->s.is_vga = 0x70;
bp->s.orig_cursor_col = 0;
bp->s.orig_cursor_row = 0;
bp->s.orig_video_page = 0;
bp->s.orig_video_mode = 0;
bp->s.orig_video_cols = 0;
bp->s.orig_video_rows = 0;
bp->s.orig_ega_bx = 0;
bp->s.orig_video_points = 0;
bp->s.lfb_width = Gop_info->HorizontalResolution;
bp->s.lfb_height = Gop_info->VerticalResolution;
bp->s.lfb_base = Gop_mode->FrameBufferBase;
bp->s.lfb_size = Gop_mode->FrameBufferSize;
bp->s.lfb_pages = 1;
bp->s.vesa_seg = 0;
bp->s.vesa_off = 0;
if (Gop_info->PixelFormat == PixelRedGreenBlueReserved8BitPerColor) {
bp->s.lfb_depth = 32;
bp->s.lfb_red_size = 8;
bp->s.lfb_red_pos = 0;
bp->s.lfb_green_size = 8;
bp->s.lfb_green_pos = 8;
bp->s.lfb_blue_size = 8;
bp->s.lfb_blue_pos = 16;
bp->s.lfb_rsvd_size = 8;
bp->s.lfb_rsvd_pos = 24;
bp->s.lfb_line_len = Gop_info->PixelsPerScanLine * 4;
} else if (Gop_info->PixelFormat == PixelBlueGreenRedReserved8BitPerColor) {
bp->s.lfb_depth = 32;
bp->s.lfb_red_size = 8;
bp->s.lfb_red_pos = 16;
bp->s.lfb_green_size = 8;
bp->s.lfb_green_pos = 8;
bp->s.lfb_blue_size = 8;
bp->s.lfb_blue_pos = 0;
bp->s.lfb_rsvd_size = 8;
bp->s.lfb_rsvd_pos = 24;
bp->s.lfb_line_len = Gop_info->PixelsPerScanLine * 4;
} else if (Gop_info->PixelFormat == PixelBitMask) {
find_bits(Gop_info->PixelInformation.RedMask,
&bp->s.lfb_red_pos, &bp->s.lfb_red_size);
find_bits(Gop_info->PixelInformation.GreenMask,
&bp->s.lfb_green_pos, &bp->s.lfb_green_size);
find_bits(Gop_info->PixelInformation.BlueMask,
&bp->s.lfb_blue_pos, &bp->s.lfb_blue_size);
find_bits(Gop_info->PixelInformation.ReservedMask,
&bp->s.lfb_rsvd_pos, &bp->s.lfb_rsvd_size);
bp->s.lfb_depth = bp->s.lfb_red_size + bp->s.lfb_green_size +
bp->s.lfb_blue_size + bp->s.lfb_rsvd_size;
bp->s.lfb_line_len = (Gop_info->PixelsPerScanLine * bp->s.lfb_depth) / 8;
} else {
bp->s.lfb_depth = 4;
bp->s.lfb_red_size = 0;
bp->s.lfb_red_pos = 0;
bp->s.lfb_green_size = 0;
bp->s.lfb_green_pos = 0;
bp->s.lfb_blue_size = 0;
bp->s.lfb_blue_pos = 0;
bp->s.lfb_rsvd_size = 0;
bp->s.lfb_rsvd_pos = 0;
bp->s.lfb_line_len = bp->s.lfb_width / 2;
}
return 0;
}
CHAR16 *
StrStr(IN const CHAR16 *h, IN const CHAR16 *n)
{
const CHAR16 *t = h;
CHAR16 *res;
int len = 0, i;
len = StrLen((CHAR16 *)n);
while(*t != CHAR_NULL) {
res = StrChr( t, n[0]);
if (!res) return res;
for( i = 1; i < len && res[i] != CHAR_NULL && res[i] == n[i]; i++);
if ( i == len ) return res;
t = res + 1;
if (t > h + CMDLINE_MAXLEN) return (CHAR16 *)0;
}
return (CHAR16 *)0;
}
CHAR8 *
StrStr8(IN const CHAR8 *h, IN const CHAR8 *n)
{
const CHAR8 *t = h;
CHAR8 *res;
int len = 0, i;
len = strlena((CHAR8 *)n);
while(*t != 0) {
res = strchra( t, n[0]);
if (!res) return res;
for( i = 1; i < len && res[i] != 0 && res[i] == n[i]; i++);
if ( i == len ) return res;
t = res + 1;
if (t > (h + CMDLINE_MAXLEN)) return (CHAR8 *)0;
}
return (CHAR8 *)0;
}
/* Convert EFI memory map to E820 map for the operating system
* This code is based on a Linux kernel patch submitted by Edgar Hucek
*/
#if DEBUG_CREATE_BOOT_PARAMS
static int e820_max = 6;
#else
static int e820_max = E820_MAX;
#endif
/* Add a memory region to the e820 map */
static void add_memory_region (struct e820entry *e820_map,
int *e820_nr_map,
unsigned long long start,
unsigned long size,
unsigned int type)
{
int x = *e820_nr_map;
static unsigned long long estart = 0ULL;
static unsigned long esize = 0L;
static unsigned int etype = -1;
static int merge = 0;
if (x == 0)
DPR((L"AMR: %3s %4s %16s/%12s/%s\n",
L"idx", L" ", L"start", L"size", L"type"));
/* merge adjacent regions of same type */
if ((x > 0) && e820_map[x-1].addr + e820_map[x-1].size == start
&& e820_map[x-1].type == type) {
e820_map[x-1].size += size;
estart = e820_map[x-1].addr;
esize = e820_map[x-1].size;
etype = e820_map[x-1].type;
merge++;
return;
}
/* fill up to E820_MAX */
if ( x < e820_max ) {
e820_map[x].addr = start;
e820_map[x].size = size;
e820_map[x].type = type;
(*e820_nr_map)++;
if (merge) DPR((L"AMR: %3d ==> %016llx/%012lx/%d (%d)\n",
x-1, estart, esize, etype, merge));
merge=0;
DPR((L"AMR: %3d add %016llx/%012lx/%d\n",
x, start, size, type));
return;
}
/* different type means another region didn't fit */
/* or same type, but there's a hole */
if (etype != type || (estart + esize) != start) {
if (merge) DPR((L"AMR: %3d ===> %016llx/%012lx/%d (%d)\n",
e820_map_overflow, estart, esize, etype, merge));
merge = 0;
estart = start;
esize = size;
etype = type;
e820_map_overflow++;
DPR((L"AMR: %3d OVER %016llx/%012lx/%d\n",
e820_map_overflow, start, size, type));
return;
}
/* same type and no hole, merge it */
estart += esize;
esize += size;
merge++;
}
void fill_e820map(boot_params_t *bp, mmap_desc_t *mdesc)
{
int nr_map, e820_nr_map = 0, i;
UINT64 start, end, size;
EFI_MEMORY_DESCRIPTOR *md, *p;
struct e820entry *e820_map;
nr_map = mdesc->map_size/mdesc->desc_size;
e820_map = (struct e820entry *)bp->s.e820_map;
for (i = 0, p = mdesc->md; i < nr_map; i++)
{
md = p;
switch (md->Type) {
case EfiACPIReclaimMemory:
add_memory_region(e820_map, &e820_nr_map,
md->PhysicalStart,
md->NumberOfPages << EFI_PAGE_SHIFT,
E820_ACPI);
break;
case EfiRuntimeServicesCode:
add_memory_region(e820_map, &e820_nr_map,
md->PhysicalStart,
md->NumberOfPages << EFI_PAGE_SHIFT,
E820_EXEC_CODE);
break;
case EfiRuntimeServicesData:
case EfiReservedMemoryType:
case EfiMemoryMappedIO:
case EfiMemoryMappedIOPortSpace:
case EfiUnusableMemory:
case EfiPalCode:
add_memory_region(e820_map, &e820_nr_map,
md->PhysicalStart,
md->NumberOfPages << EFI_PAGE_SHIFT,
E820_RESERVED);
break;
case EfiLoaderCode:
case EfiLoaderData:
case EfiBootServicesCode:
case EfiBootServicesData:
case EfiConventionalMemory:
start = md->PhysicalStart;
size = md->NumberOfPages << EFI_PAGE_SHIFT;
end = start + size;
/* Fix up for BIOS that claims RAM in 640K-1MB region */
if (start < 0x100000ULL && end > 0xA0000ULL) {
if (start < 0xA0000ULL) {
/* start < 640K
* set memory map from start to 640K
*/
add_memory_region(e820_map,
&e820_nr_map,
start,
0xA0000ULL-start,
E820_RAM);
}
if (end <= 0x100000ULL)
continue;
/* end > 1MB
* set memory map avoiding 640K to 1MB hole
*/
start = 0x100000ULL;
size = end - start;
}
add_memory_region(e820_map, &e820_nr_map,
start, size, E820_RAM);
break;
case EfiACPIMemoryNVS:
add_memory_region(e820_map, &e820_nr_map,
md->PhysicalStart,
md->NumberOfPages << EFI_PAGE_SHIFT,
E820_NVS);
break;
default:
/* We should not hit this case */
DBG_PRT((L"hit default!?"));
add_memory_region(e820_map, &e820_nr_map,
md->PhysicalStart,
md->NumberOfPages << EFI_PAGE_SHIFT,
E820_RESERVED);
break;
}
p = NextMemoryDescriptor(p, mdesc->desc_size);
}
bp->s.e820_nrmap = e820_nr_map;
}
/*
* x86_64 specific boot parameters initialization routine
*
* Note: debug and verbose messages have already been turned off!
*/
INTN
sysdeps_create_boot_params(
boot_params_t *bp,
CHAR8 *cmdline,
memdesc_t *initrd,
memdesc_t *vmcode,
UINTN *cookie)
{
mmap_desc_t mdesc;
EFI_STATUS efi_status;
UINTN rows, cols;
UINT8 row, col;
UINT8 mode;
UINT16 hdr_version;
UINT8 e820_map_overflow_warned = 0;
#if DEBUG_CREATE_BOOT_PARAMS
elilo_opt.debug=1;
elilo_opt.verbose=5;
#endif
DBG_PRT((L"fill_boot_params()\n"));
if (!bp || !cmdline || !initrd || !cookie) {
ERR_PRT((L"bp="PTR_FMT" cmdline="PTR_FMT" initrd="PTR_FMT" cookie="PTR_FMT"",
bp, cmdline, initrd, cookie));
if (param_start != NULL) {
free(param_start);
param_start = NULL;
param_size = 0;
}
free_kmem();
return -1;
}
/*
* Copy temporary boot sector and setup data storage to
* elilo allocated boot parameter storage. We only need
* the first two sectors (1K). The rest of the storage
* can be used by the command line.
*/
if (param_start != NULL) {
CopyMem(bp, param_start, 0x2000);
}
/*
* Save off our header revision information.
*/
hdr_version = (bp->s.hdr_major << 8) | bp->s.hdr_minor;
/*
* Do NOT clear out unknown memory in boot sector image.
* This breaks boot protocol >= 2.10 (2.6.31).
*/
/*
* Tell kernel this was loaded by an advanced loader type.
* If this field is zero, the initrd_start and initrd_size
* fields are ignored by the kernel.
*/
bp->s.loader_type = LDRTYPE_ELILO;
/*
* Setup command line information.
*/
bp->s.cmdline_magik = CMDLINE_MAGIK;
bp->s.cmdline_offset = (UINT8 *)cmdline - (UINT8 *)bp;
/*
* Clear out the cmdline_addr field so the kernel can find
* the cmdline.
*/
bp->s.cmdline_addr = 0x0;
/*
* Setup hard drive parameters.
* %%TBD - It should be okay to zero fill the hard drive
* info buffers. The kernel should do its own detection.
*/
ZeroMem(bp->s.hd0_info, sizeof bp->s.hd0_info);
ZeroMem(bp->s.hd1_info, sizeof bp->s.hd1_info);
/*
* Memory info.
*/
bp->s.alt_mem_k = high_ext_mem / 1024;
if (bp->s.alt_mem_k <= 65535)
bp->s.ext_mem_k = (UINT16)bp->s.alt_mem_k;
else
bp->s.ext_mem_k = 65535;
/*
* Initial RAMdisk and root device stuff.
*/
DBG_PRT((L"initrd->start_addr="PTR_FMT" initrd->pgcnt=%d\n",
initrd->start_addr, initrd->pgcnt));
/* 'ramdisk_flags' (@0x1F8) is called 'ram_size' in the meantime, */
/* see Documentation/x86/boot.txt. */
if (initrd->start_addr && initrd->pgcnt) {
if ( (UINT64)initrd->start_addr > UINT32_MAX ) {
ERR_PRT((L"Start of initrd out of reach (>4GB)."));
free_kmem();
return -1;
}
/* %%TBD - This will probably have to be changed. */
bp->s.initrd_start = (UINT32)(UINT64)initrd->start_addr;
bp->s.initrd_size = (UINT32)(initrd->size);
} else {
bp->s.initrd_start = 0;
bp->s.initrd_size = 0;
}
/*
* APM BIOS info.
*/
bp->s.apm_bios_ver = NO_APM_BIOS;
bp->s.bios_code_seg = 0;
bp->s.bios_entry_point = 0;
bp->s.bios_code_seg16 = 0;
bp->s.bios_data_seg = 0;
bp->s.apm_bios_flags = 0;
bp->s.bios_code_len = 0;
bp->s.bios_data_len = 0;
/*
* MCA BIOS info (misnomer).
*/
bp->s.mca_info_len = 0;
ZeroMem(bp->s.mca_info_buf, sizeof bp->s.mca_info_buf);
/*
* EFI loader signature
*/
CopyMem(bp->s.efi_loader_sig, EFI_LOADER_SIG_X64, 4);
/*
* Kernel entry point.
*/
if ( (UINT64)kernel_start != (UINT32)(UINT64)kernel_start ) {
ERR_PRT((L"Start of kernel (will be) out of reach (>4GB)."));
free_kmem();
return -1;
}
bp->s.kernel_start = (UINT32)(UINT64)kernel_start;
/*
* When changing stuff in the parameter structure compare
* the offsets of the fields with the offsets used in the
* boot sector and setup source files.
* arch/x86_64/boot/bootsect.S
* arch/x86_64/boot/setup.S
* arch/x86_64/kernel/setup.c
* include/asm-x86_64/setup.h (2.5/2.6)
*/
#define CHECK_OFFSET(n, o, f) \
{ \
UINTN p = (UINT8 *)&bp->s.n - (UINT8 *)bp; \
UINTN q = (UINTN)(o); \
if (p != q) { \
test |= 1; \
Print(L"%20a: %3xh %3xh ", #n, p, q); \
if (*f) { \
Print(f, bp->s.n); \
} \
Print(L"\n"); \
} \
}
#define WAIT_FOR_KEY() \
{ \
EFI_INPUT_KEY key; \
while (uefi_call_wrapper(ST->ConIn->ReadKeyStroke, 2, ST->ConIn, &key) != EFI_SUCCESS) { \
; \
} \
}
{
UINTN test = 0;
CHECK_OFFSET(orig_cursor_col, 0x00, L"%xh");
CHECK_OFFSET(orig_cursor_row, 0x01, L"%xh");
CHECK_OFFSET(ext_mem_k, 0x02, L"%xh");
CHECK_OFFSET(orig_video_page, 0x04, L"%xh");
CHECK_OFFSET(orig_video_mode, 0x06, L"%xh");
CHECK_OFFSET(orig_video_cols, 0x07, L"%xh");
CHECK_OFFSET(orig_ega_bx, 0x0A, L"%xh");
CHECK_OFFSET(orig_video_rows, 0x0E, L"%xh");
CHECK_OFFSET(is_vga, 0x0F, L"%xh");
CHECK_OFFSET(orig_video_points, 0x10, L"%xh");
CHECK_OFFSET(lfb_width, 0x12, L"%xh");
CHECK_OFFSET(lfb_height, 0x14, L"%xh");
CHECK_OFFSET(lfb_depth, 0x16, L"%xh");
CHECK_OFFSET(lfb_base, 0x18, L"%xh");
CHECK_OFFSET(lfb_size, 0x1C, L"%xh");
CHECK_OFFSET(cmdline_magik, 0x20, L"%xh");
CHECK_OFFSET(cmdline_offset, 0x22, L"%xh");
CHECK_OFFSET(lfb_line_len, 0x24, L"%xh");
CHECK_OFFSET(lfb_red_size, 0x26, L"%xh");
CHECK_OFFSET(lfb_red_pos, 0x27, L"%xh");
CHECK_OFFSET(lfb_green_size, 0x28, L"%xh");
CHECK_OFFSET(lfb_green_pos, 0x29, L"%xh");
CHECK_OFFSET(lfb_blue_size, 0x2A, L"%xh");
CHECK_OFFSET(lfb_blue_pos, 0x2B, L"%xh");
CHECK_OFFSET(lfb_rsvd_size, 0x2C, L"%xh");
CHECK_OFFSET(lfb_rsvd_pos, 0x2D, L"%xh");
CHECK_OFFSET(vesa_seg, 0x2E, L"%xh");
CHECK_OFFSET(vesa_off, 0x30, L"%xh");
CHECK_OFFSET(lfb_pages, 0x32, L"%xh");
CHECK_OFFSET(lfb_reserved, 0x34, L"");
CHECK_OFFSET(apm_bios_ver, 0x40, L"%xh");
CHECK_OFFSET(bios_code_seg, 0x42, L"%xh");
CHECK_OFFSET(bios_entry_point, 0x44, L"%xh");
CHECK_OFFSET(bios_code_seg16, 0x48, L"%xh");
CHECK_OFFSET(bios_data_seg, 0x4A, L"%xh");
CHECK_OFFSET(apm_bios_flags, 0x4C, L"%xh");
CHECK_OFFSET(bios_code_len, 0x4E, L"%xh");
CHECK_OFFSET(bios_data_len, 0x52, L"%xh");
CHECK_OFFSET(hd0_info, 0x80, L"");
CHECK_OFFSET(hd1_info, 0x90, L"");
CHECK_OFFSET(mca_info_len, 0xA0, L"%xh");
CHECK_OFFSET(mca_info_buf, 0xA2, L"");
CHECK_OFFSET(efi_loader_sig, 0x1C0, L"'%-4.4a'");
CHECK_OFFSET(efi_sys_tbl, 0x1C4, L"%xh");
CHECK_OFFSET(efi_mem_desc_size, 0x1C8, L"%xh");
CHECK_OFFSET(efi_mem_desc_ver, 0x1CC, L"%xh");
CHECK_OFFSET(efi_mem_map, 0x1D0, L"%xh");
CHECK_OFFSET(efi_mem_map_size, 0x1D4, L"%xh");
CHECK_OFFSET(efi_sys_tbl_hi, 0x1D8, L"%xh");
CHECK_OFFSET(efi_mem_map_hi, 0x1DC, L"%xh");
CHECK_OFFSET(alt_mem_k, 0x1E0, L"%xh");
CHECK_OFFSET(setup_sectors, 0x1F1, L"%xh");
CHECK_OFFSET(mount_root_rdonly, 0x1F2, L"%xh");
CHECK_OFFSET(sys_size, 0x1F4, L"%xh");
CHECK_OFFSET(video_mode_flag, 0x1FA, L"%xh");
CHECK_OFFSET(orig_root_dev, 0x1FC, L"%xh");
CHECK_OFFSET(boot_flag, 0x1FE, L"%xh");
CHECK_OFFSET(jump, 0x200, L"%xh");
CHECK_OFFSET(setup_sig, 0x202, L"'%-4.4a'");
CHECK_OFFSET(hdr_minor, 0x206, L"%xh");
CHECK_OFFSET(hdr_major, 0x207, L"%xh");
CHECK_OFFSET(rm_switch, 0x208, L"%xh");
CHECK_OFFSET(start_sys_seg, 0x20C, L"%xh");
CHECK_OFFSET(kernel_verstr_offset, 0x20E, L"%xh");
CHECK_OFFSET(loader_type, 0x210, L"%xh");
CHECK_OFFSET(loader_flags, 0x211, L"%xh");
CHECK_OFFSET(setup_move_size, 0x212, L"%xh");
CHECK_OFFSET(kernel_start, 0x214, L"%xh");
CHECK_OFFSET(initrd_start, 0x218, L"%xh");
CHECK_OFFSET(initrd_size, 0x21C, L"%xh");
CHECK_OFFSET(heap_end_ptr, 0x224, L"%xh");
CHECK_OFFSET(cmdline_addr, 0x228, L"%xh");
CHECK_OFFSET(e820_map, 0x2D0, L"%xh");
if (test) {
ERR_PRT((L"Boot sector and/or setup parameter alignment error."));
free_kmem();
return -1;
}
}
/*
* Get video information.
* Do this last so that any other cursor positioning done
* in the fill routine gets accounted for.
*/
if (!get_video_info(bp)) goto do_memmap;
/* Do the old text mode */
efi_status = uefi_call_wrapper(
ST->ConOut->QueryMode,
4,
ST->ConOut,
ST->ConOut->Mode->Mode,
&cols,
&rows);
if (EFI_ERROR(efi_status)) {
ERR_PRT((L"QueryMode failed. Fake it."));
mode = 3;
rows = 25;
cols = 80;
row = 24;
col = 0;
} else {
mode = (UINT8)ST->ConOut->Mode->Mode;
col = (UINT8)ST->ConOut->Mode->CursorColumn;
row = (UINT8)ST->ConOut->Mode->CursorRow;
}
bp->s.orig_cursor_col = col;
bp->s.orig_cursor_row = row;
bp->s.orig_video_page = 0;
bp->s.orig_video_mode = mode;
bp->s.orig_video_cols = (UINT8)cols;
bp->s.orig_video_rows = (UINT8)rows;
bp->s.orig_ega_bx = 0;
bp->s.is_vga = 0;
bp->s.orig_video_points = 16;
bp->s.lfb_width = 0;
bp->s.lfb_height = 0;
bp->s.lfb_depth = 0;
bp->s.lfb_base = 0;
bp->s.lfb_size = 0;
bp->s.lfb_line_len = 0;
bp->s.lfb_red_size = 0;
bp->s.lfb_red_pos = 0;
bp->s.lfb_green_size = 0;
bp->s.lfb_green_pos = 0;
bp->s.lfb_blue_size = 0;
bp->s.lfb_blue_pos = 0;
bp->s.lfb_rsvd_size = 0;
bp->s.lfb_rsvd_pos = 0;
bp->s.lfb_pages = 0;
bp->s.vesa_seg = 0;
bp->s.vesa_off = 0;
do_memmap:
/*
* Get memory map description and cookie for ExitBootServices()
*/
if (get_memmap(&mdesc)) {
ERR_PRT((L"Could not get memory map."));
free_kmem();
return -1;
}
*cookie = mdesc.cookie;
bp->s.efi_mem_map = (UINT32)(unsigned long)mdesc.md;
bp->s.efi_mem_map_size = mdesc.map_size;
bp->s.efi_mem_desc_size = mdesc.desc_size;
bp->s.efi_mem_desc_ver = mdesc.desc_version;
bp->s.efi_sys_tbl = (UINT32)(unsigned long)systab;
bp->s.efi_mem_map_hi = (unsigned long)mdesc.md >> 32;
bp->s.efi_sys_tbl_hi = (unsigned long)systab >> 32;
/* Now that we have EFI memory map, convert it to E820 map
* and update the bootparam accordingly
*/
fill_e820map(bp, &mdesc);
#if DEBUG_CREATE_BOOT_PARAMS
if ( e820_map_overflow == 0 )
e820_map_overflow = -1; /* force second get_memmap()! */
#endif
if (e820_map_overflow && !e820_map_overflow_warned) {
CHAR8 *aem = (CHAR8 *)"add_efi_memmap";
e820_map_overflow_warned++;
#if DEBUG_CREATE_BOOT_PARAMS
elilo_opt.debug=0;
elilo_opt.verbose=0;
#endif
if (e820_map_overflow == -1 || StrStr8(cmdline, aem)) {
/* Print(L"...mapping again, silently!\n"); */
goto do_memmap;
}
Print(L"\nCAUTION: EFI memory map has %d more entr%a"
" than E820 map supports.\n"
"To access all memory, '%a' may be necessary.\n\n",
e820_map_overflow, (e820_map_overflow==1)?"y":"ies",
aem);
goto do_memmap;
}
return 0;
}