grub/grub-core/loader/i386/multiboot_mbi.c

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/*
* GRUB -- GRand Unified Bootloader
* Copyright (C) 1999,2000,2001,2002,2003,2004,2005,2007,2008,2009 Free Software Foundation, Inc.
*
* GRUB 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 3 of the License, or
* (at your option) any later version.
*
* GRUB 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 GRUB. If not, see <http://www.gnu.org/licenses/>.
*/
#include <grub/memory.h>
#ifdef GRUB_MACHINE_PCBIOS
#include <grub/machine/biosnum.h>
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#include <grub/machine/apm.h>
#include <grub/machine/memory.h>
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#endif
#include <grub/multiboot.h>
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#include <grub/cpu/relocator.h>
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#include <grub/disk.h>
#include <grub/device.h>
#include <grub/partition.h>
#include <grub/mm.h>
#include <grub/misc.h>
#include <grub/env.h>
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#include <grub/relocator.h>
#include <grub/video.h>
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#include <grub/file.h>
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#include <grub/net.h>
#include <grub/i18n.h>
#include <grub/lib/cmdline.h>
#ifdef GRUB_MACHINE_EFI
#include <grub/efi/efi.h>
#endif
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/* The bits in the required part of flags field we don't support. */
#define UNSUPPORTED_FLAGS 0x0000fff8
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struct module
{
struct module *next;
grub_addr_t start;
grub_size_t size;
char *cmdline;
int cmdline_size;
};
static struct module *modules, *modules_last;
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static grub_size_t cmdline_size;
static grub_size_t total_modcmd;
static unsigned modcnt;
static char *cmdline = NULL;
static grub_uint32_t bootdev;
static int bootdev_set;
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static grub_size_t elf_sec_num, elf_sec_entsize;
static unsigned elf_sec_shstrndx;
static void *elf_sections;
grub_multiboot_quirks_t grub_multiboot_quirks;
static grub_err_t
load_kernel (grub_file_t file, const char *filename,
char *buffer, struct multiboot_header *header)
{
grub_err_t err;
multiboot2: Add support for relocatable images Currently multiboot2 protocol loads image exactly at address specified in ELF or multiboot2 header. This solution works quite well on legacy BIOS platforms. It is possible because memory regions are placed at predictable addresses (though I was not able to find any spec which says that it is strong requirement, so, it looks that it is just a goodwill of hardware designers). However, EFI platforms are more volatile. Even if required memory regions live at specific addresses then they are sometimes simply not free (e.g. used by boot/runtime services on Dell PowerEdge R820 and OVMF). This means that you are not able to just set up final image destination on build time. You have to provide method to relocate image contents to real load address which is usually different than load address specified in ELF and multiboot2 headers. This patch provides all needed machinery to do self relocation in image code. First of all GRUB2 reads min_addr (min. load addr), max_addr (max. load addr), align (required image alignment), preference (it says which memory regions are preferred by image, e.g. none, low, high) from multiboot_header_tag_relocatable header tag contained in binary (at this stage load addresses from multiboot2 and/or ELF headers are ignored). Later loader tries to fulfill request (not only that one) and if it succeeds then it informs image about real load address via multiboot_tag_load_base_addr tag. At this stage GRUB2 role is finished. Starting from now executable must cope with relocations itself using whole static and dynamic knowledge provided by boot loader. This patch does not provide functionality which could do relocations using ELF relocation data. However, I was asked by Konrad Rzeszutek Wilk and Vladimir 'phcoder' Serbinenko to investigate that thing. It looks that relevant machinery could be added to existing code (including this patch) without huge effort. Additionally, ELF relocation could live in parallel with self relocation provided by this patch. However, during research I realized that first of all we should establish the details how ELF relocatable image should look like and how it should be build. At least to build proper test/example files. So, this patch just provides support for self relocatable images. If ELF file with relocs is loaded then GRUB2 complains loudly and ignores it. Support for such files will be added later. This patch was tested with Xen image which uses that functionality. However, this Xen feature is still under development and new patchset will be released in about 2-3 weeks. Signed-off-by: Daniel Kiper <daniel.kiper@oracle.com> Reviewed-by: Vladimir Serbinenko <phcoder@gmail.com>
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mbi_load_data_t mld;
mld.file = file;
mld.filename = filename;
mld.buffer = buffer;
mld.mbi_ver = 1;
mld.relocatable = 0;
mld.avoid_efi_boot_services = 0;
if (grub_multiboot_quirks & GRUB_MULTIBOOT_QUIRK_BAD_KLUDGE)
{
multiboot2: Add support for relocatable images Currently multiboot2 protocol loads image exactly at address specified in ELF or multiboot2 header. This solution works quite well on legacy BIOS platforms. It is possible because memory regions are placed at predictable addresses (though I was not able to find any spec which says that it is strong requirement, so, it looks that it is just a goodwill of hardware designers). However, EFI platforms are more volatile. Even if required memory regions live at specific addresses then they are sometimes simply not free (e.g. used by boot/runtime services on Dell PowerEdge R820 and OVMF). This means that you are not able to just set up final image destination on build time. You have to provide method to relocate image contents to real load address which is usually different than load address specified in ELF and multiboot2 headers. This patch provides all needed machinery to do self relocation in image code. First of all GRUB2 reads min_addr (min. load addr), max_addr (max. load addr), align (required image alignment), preference (it says which memory regions are preferred by image, e.g. none, low, high) from multiboot_header_tag_relocatable header tag contained in binary (at this stage load addresses from multiboot2 and/or ELF headers are ignored). Later loader tries to fulfill request (not only that one) and if it succeeds then it informs image about real load address via multiboot_tag_load_base_addr tag. At this stage GRUB2 role is finished. Starting from now executable must cope with relocations itself using whole static and dynamic knowledge provided by boot loader. This patch does not provide functionality which could do relocations using ELF relocation data. However, I was asked by Konrad Rzeszutek Wilk and Vladimir 'phcoder' Serbinenko to investigate that thing. It looks that relevant machinery could be added to existing code (including this patch) without huge effort. Additionally, ELF relocation could live in parallel with self relocation provided by this patch. However, during research I realized that first of all we should establish the details how ELF relocatable image should look like and how it should be build. At least to build proper test/example files. So, this patch just provides support for self relocatable images. If ELF file with relocs is loaded then GRUB2 complains loudly and ignores it. Support for such files will be added later. This patch was tested with Xen image which uses that functionality. However, this Xen feature is still under development and new patchset will be released in about 2-3 weeks. Signed-off-by: Daniel Kiper <daniel.kiper@oracle.com> Reviewed-by: Vladimir Serbinenko <phcoder@gmail.com>
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err = grub_multiboot_load_elf (&mld);
if (err == GRUB_ERR_NONE) {
return GRUB_ERR_NONE;
}
if (err == GRUB_ERR_UNKNOWN_OS && (header->flags & MULTIBOOT_AOUT_KLUDGE))
grub_errno = err = GRUB_ERR_NONE;
}
if (header->flags & MULTIBOOT_AOUT_KLUDGE)
{
int offset = ((char *) header - buffer -
(header->header_addr - header->load_addr));
int load_size = ((header->load_end_addr == 0) ? file->size - offset :
header->load_end_addr - header->load_addr);
grub_size_t code_size;
void *source;
grub_relocator_chunk_t ch;
if (header->bss_end_addr)
code_size = (header->bss_end_addr - header->load_addr);
else
code_size = load_size;
err = grub_relocator_alloc_chunk_addr (grub_multiboot_relocator,
&ch, header->load_addr,
code_size);
if (err)
{
grub_dprintf ("multiboot_loader", "Error loading aout kludge\n");
return err;
}
source = get_virtual_current_address (ch);
if ((grub_file_seek (file, offset)) == (grub_off_t) -1)
{
return grub_errno;
}
grub_file_read (file, source, load_size);
if (grub_errno)
return grub_errno;
if (header->bss_end_addr)
grub_memset ((grub_uint8_t *) source + load_size, 0,
header->bss_end_addr - header->load_addr - load_size);
grub_multiboot_payload_eip = header->entry_addr;
return GRUB_ERR_NONE;
}
multiboot2: Add support for relocatable images Currently multiboot2 protocol loads image exactly at address specified in ELF or multiboot2 header. This solution works quite well on legacy BIOS platforms. It is possible because memory regions are placed at predictable addresses (though I was not able to find any spec which says that it is strong requirement, so, it looks that it is just a goodwill of hardware designers). However, EFI platforms are more volatile. Even if required memory regions live at specific addresses then they are sometimes simply not free (e.g. used by boot/runtime services on Dell PowerEdge R820 and OVMF). This means that you are not able to just set up final image destination on build time. You have to provide method to relocate image contents to real load address which is usually different than load address specified in ELF and multiboot2 headers. This patch provides all needed machinery to do self relocation in image code. First of all GRUB2 reads min_addr (min. load addr), max_addr (max. load addr), align (required image alignment), preference (it says which memory regions are preferred by image, e.g. none, low, high) from multiboot_header_tag_relocatable header tag contained in binary (at this stage load addresses from multiboot2 and/or ELF headers are ignored). Later loader tries to fulfill request (not only that one) and if it succeeds then it informs image about real load address via multiboot_tag_load_base_addr tag. At this stage GRUB2 role is finished. Starting from now executable must cope with relocations itself using whole static and dynamic knowledge provided by boot loader. This patch does not provide functionality which could do relocations using ELF relocation data. However, I was asked by Konrad Rzeszutek Wilk and Vladimir 'phcoder' Serbinenko to investigate that thing. It looks that relevant machinery could be added to existing code (including this patch) without huge effort. Additionally, ELF relocation could live in parallel with self relocation provided by this patch. However, during research I realized that first of all we should establish the details how ELF relocatable image should look like and how it should be build. At least to build proper test/example files. So, this patch just provides support for self relocatable images. If ELF file with relocs is loaded then GRUB2 complains loudly and ignores it. Support for such files will be added later. This patch was tested with Xen image which uses that functionality. However, this Xen feature is still under development and new patchset will be released in about 2-3 weeks. Signed-off-by: Daniel Kiper <daniel.kiper@oracle.com> Reviewed-by: Vladimir Serbinenko <phcoder@gmail.com>
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return grub_multiboot_load_elf (&mld);
}
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static struct multiboot_header *
find_header (char *buffer, grub_ssize_t len)
{
struct multiboot_header *header;
/* Look for the multiboot header in the buffer. The header should
be at least 12 bytes and aligned on a 4-byte boundary. */
for (header = (struct multiboot_header *) buffer;
((char *) header <= buffer + len - 12);
header = (struct multiboot_header *) ((char *) header + MULTIBOOT_HEADER_ALIGN))
{
if (header->magic == MULTIBOOT_HEADER_MAGIC
&& !(header->magic + header->flags + header->checksum))
return header;
}
return NULL;
}
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grub_err_t
grub_multiboot_load (grub_file_t file, const char *filename)
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{
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char *buffer;
grub_ssize_t len;
struct multiboot_header *header;
grub_err_t err;
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buffer = grub_malloc (MULTIBOOT_SEARCH);
if (!buffer)
return grub_errno;
len = grub_file_read (file, buffer, MULTIBOOT_SEARCH);
if (len < 32)
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{
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grub_free (buffer);
if (!grub_errno)
grub_error (GRUB_ERR_BAD_OS, N_("premature end of file %s"),
filename);
return grub_errno;
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}
header = find_header (buffer, len);
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if (header == 0)
{
grub_free (buffer);
return grub_error (GRUB_ERR_BAD_ARGUMENT, "no multiboot header found");
}
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if (header->flags & UNSUPPORTED_FLAGS)
{
grub_free (buffer);
return grub_error (GRUB_ERR_UNKNOWN_OS,
"unsupported flag: 0x%x", header->flags);
}
err = load_kernel (file, filename, buffer, header);
if (err)
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{
grub_free (buffer);
return err;
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}
if (header->flags & MULTIBOOT_VIDEO_MODE)
{
switch (header->mode_type)
{
case 1:
err = grub_multiboot_set_console (GRUB_MULTIBOOT_CONSOLE_EGA_TEXT,
GRUB_MULTIBOOT_CONSOLE_EGA_TEXT
| GRUB_MULTIBOOT_CONSOLE_FRAMEBUFFER,
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0, 0, 0, 0);
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break;
case 0:
err = grub_multiboot_set_console (GRUB_MULTIBOOT_CONSOLE_FRAMEBUFFER,
GRUB_MULTIBOOT_CONSOLE_EGA_TEXT
| GRUB_MULTIBOOT_CONSOLE_FRAMEBUFFER,
header->width, header->height,
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header->depth, 0);
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break;
default:
err = grub_error (GRUB_ERR_BAD_OS,
"unsupported graphical mode type %d",
header->mode_type);
break;
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}
}
else
err = grub_multiboot_set_console (GRUB_MULTIBOOT_CONSOLE_EGA_TEXT,
GRUB_MULTIBOOT_CONSOLE_EGA_TEXT,
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0, 0, 0, 0);
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return err;
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}
#if GRUB_MACHINE_HAS_VBE || GRUB_MACHINE_HAS_VGA_TEXT
#include <grub/i386/pc/vbe.h>
#endif
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static grub_size_t
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grub_multiboot_get_mbi_size (void)
{
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grub_size_t ret;
struct grub_net_network_level_interface *net;
ret = sizeof (struct multiboot_info) + ALIGN_UP (cmdline_size, 4)
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+ modcnt * sizeof (struct multiboot_mod_list) + total_modcmd
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+ ALIGN_UP (sizeof(PACKAGE_STRING), 4)
+ grub_multiboot_get_mmap_count () * sizeof (struct multiboot_mmap_entry)
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+ elf_sec_entsize * elf_sec_num
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+ 256 * sizeof (struct multiboot_color)
#if GRUB_MACHINE_HAS_VBE || GRUB_MACHINE_HAS_VGA_TEXT
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+ sizeof (struct grub_vbe_info_block)
+ sizeof (struct grub_vbe_mode_info_block)
#endif
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+ ALIGN_UP (sizeof (struct multiboot_apm_info), 4);
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FOR_NET_NETWORK_LEVEL_INTERFACES(net)
if (net->dhcp_ack)
{
ret += net->dhcp_acklen;
break;
}
return ret;
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}
Remove nested functions from memory map iterators. * grub-core/efiemu/mm.c (grub_efiemu_mmap_iterate): Add hook_data argument, passed to hook. * grub-core/kern/i386/coreboot/mmap.c (grub_linuxbios_table_iterate): Likewise. (grub_machine_mmap_iterate: iterate_linuxbios_table): Make static instead of nested. (grub_machine_mmap_iterate): Add hook_data argument. * grub-core/kern/i386/multiboot_mmap.c (grub_machine_mmap_iterate): Add hook_data argument, passed to hook. * grub-core/kern/i386/pc/mmap.c (grub_machine_mmap_iterate): Likewise. * grub-core/kern/i386/qemu/mmap.c (grub_machine_mmap_iterate): Likewise. * grub-core/kern/ieee1275/mmap.c (grub_machine_mmap_iterate): Likewise. * grub-core/kern/mips/arc/init.c (grub_machine_mmap_iterate): Likewise. * grub-core/kern/mips/loongson/init.c (grub_machine_mmap_iterate): Likewise. * grub-core/kern/mips/qemu_mips/init.c (grub_machine_mmap_iterate): Likewise. * grub-core/mmap/efi/mmap.c (grub_efi_mmap_iterate): Likewise. (grub_machine_mmap_iterate): Likewise. * grub-core/mmap/mmap.c (grub_mmap_iterate): Likewise. * include/grub/efiemu/efiemu.h (grub_efiemu_mmap_iterate): Update prototype. * include/grub/memory.h (grub_memory_hook_t): Add data argument. Remove NESTED_FUNC_ATTR from here and from all users. (grub_mmap_iterate): Update prototype. (grub_efi_mmap_iterate): Update prototype. Update all callers to pass appropriate hook data. (grub_machine_mmap_iterate): Likewise. * grub-core/commands/acpi.c (grub_acpi_create_ebda: find_hook): Make static instead of nested. * grub-core/commands/lsmmap.c (grub_cmd_lsmmap: hook): Likewise. Rename to ... (lsmmap_hook): ... this. * grub-core/efiemu/mm.c (grub_efiemu_mmap_init: bounds_hook): Likewise. (grub_efiemu_mmap_fill: fill_hook): Likewise. * grub-core/kern/i386/coreboot/init.c (grub_machine_init: heap_init): Likewise. * grub-core/kern/i386/pc/init.c (grub_machine_init: hook): Likewise. Rename to ... (mmap_iterate_hook): ... this. * grub-core/kern/ieee1275/init.c (grub_claim_heap: heap_init): Likewise. * grub-core/lib/ieee1275/relocator.c (grub_relocator_firmware_get_max_events: count): Likewise. (grub_relocator_firmware_fill_events: fill): Likewise. Rename to ... (grub_relocator_firmware_fill_events_iter): ... this. * grub-core/lib/relocator.c (grub_relocator_alloc_chunk_align: hook): Likewise. Rename to ... (grub_relocator_alloc_chunk_align_iter): ... this. * grub-core/loader/i386/bsd.c (generate_e820_mmap: hook): Likewise. Rename to ... (generate_e820_mmap_iter): ... this. * grub-core/loader/i386/linux.c (find_mmap_size: hook): Likewise. Rename to ... (count_hook): ... this. (grub_linux_boot: hook): Likewise. Rename to ... (grub_linux_boot_mmap_find): ... this. (grub_linux_boot: hook_fill): Likewise. Rename to ... (grub_linux_boot_mmap_fill): ... this. * grub-core/loader/i386/multiboot_mbi.c (grub_fill_multiboot_mmap: hook): Likewise. Rename to ... (grub_fill_multiboot_mmap_iter): ... this. * grub-core/loader/multiboot.c (grub_get_multiboot_mmap_count: hook): Likewise. Rename to ... (count_hook): ... this. * grub-core/loader/multiboot_mbi2.c (grub_fill_multiboot_mmap: hook): Likewise. Rename to ... (grub_fill_multiboot_mmap_iter): ... this. * grub-core/loader/powerpc/ieee1275/linux.c (grub_linux_claimmap_iterate: alloc_mem): Likewise. * grub-core/loader/sparc64/ieee1275/linux.c (alloc_phys: choose): Likewise. Rename to ... (alloc_phys_choose): ... this. (determine_phys_base: get_physbase): Likewise. * grub-core/mmap/i386/mmap.c (grub_mmap_malign_and_register: find_hook): Likewise. * grub-core/mmap/i386/pc/mmap.c (preboot: fill_hook): Likewise. (malloc_hook: count_hook): Likewise. * grub-core/mmap/i386/uppermem.c (grub_mmap_get_lower: hook): Likewise. Rename to ... (lower_hook): ... this. (grub_mmap_get_upper: hook): Likewise. Rename to ... (upper_hook): ... this. (grub_mmap_get_post64: hook): Likewise. Rename to ... (post64_hook): ... this. * grub-core/mmap/mips/uppermem.c (grub_mmap_get_lower: hook): Likewise. Rename to ... (lower_hook): ... this. (grub_mmap_get_upper: hook): Likewise. Rename to ... (upper_hook): ... this. * grub-core/mmap/mmap.c (grub_mmap_iterate: count_hook): Likewise. (grub_mmap_iterate: fill_hook): Likewise. (fill_mask): Pass addr and mask within a single struct. (grub_cmd_badram: hook): Make static instead of nested. Rename to ... (badram_iter): ... this. (grub_cmd_cutmem: hook): Likewise. Rename to ... (cutmem_iter): ... this.
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/* Helper for grub_fill_multiboot_mmap. */
static int
grub_fill_multiboot_mmap_iter (grub_uint64_t addr, grub_uint64_t size,
grub_memory_type_t type, void *data)
{
struct multiboot_mmap_entry **mmap_entry = data;
(*mmap_entry)->addr = addr;
(*mmap_entry)->len = size;
(*mmap_entry)->type = type;
Remove nested functions from memory map iterators. * grub-core/efiemu/mm.c (grub_efiemu_mmap_iterate): Add hook_data argument, passed to hook. * grub-core/kern/i386/coreboot/mmap.c (grub_linuxbios_table_iterate): Likewise. (grub_machine_mmap_iterate: iterate_linuxbios_table): Make static instead of nested. (grub_machine_mmap_iterate): Add hook_data argument. * grub-core/kern/i386/multiboot_mmap.c (grub_machine_mmap_iterate): Add hook_data argument, passed to hook. * grub-core/kern/i386/pc/mmap.c (grub_machine_mmap_iterate): Likewise. * grub-core/kern/i386/qemu/mmap.c (grub_machine_mmap_iterate): Likewise. * grub-core/kern/ieee1275/mmap.c (grub_machine_mmap_iterate): Likewise. * grub-core/kern/mips/arc/init.c (grub_machine_mmap_iterate): Likewise. * grub-core/kern/mips/loongson/init.c (grub_machine_mmap_iterate): Likewise. * grub-core/kern/mips/qemu_mips/init.c (grub_machine_mmap_iterate): Likewise. * grub-core/mmap/efi/mmap.c (grub_efi_mmap_iterate): Likewise. (grub_machine_mmap_iterate): Likewise. * grub-core/mmap/mmap.c (grub_mmap_iterate): Likewise. * include/grub/efiemu/efiemu.h (grub_efiemu_mmap_iterate): Update prototype. * include/grub/memory.h (grub_memory_hook_t): Add data argument. Remove NESTED_FUNC_ATTR from here and from all users. (grub_mmap_iterate): Update prototype. (grub_efi_mmap_iterate): Update prototype. Update all callers to pass appropriate hook data. (grub_machine_mmap_iterate): Likewise. * grub-core/commands/acpi.c (grub_acpi_create_ebda: find_hook): Make static instead of nested. * grub-core/commands/lsmmap.c (grub_cmd_lsmmap: hook): Likewise. Rename to ... (lsmmap_hook): ... this. * grub-core/efiemu/mm.c (grub_efiemu_mmap_init: bounds_hook): Likewise. (grub_efiemu_mmap_fill: fill_hook): Likewise. * grub-core/kern/i386/coreboot/init.c (grub_machine_init: heap_init): Likewise. * grub-core/kern/i386/pc/init.c (grub_machine_init: hook): Likewise. Rename to ... (mmap_iterate_hook): ... this. * grub-core/kern/ieee1275/init.c (grub_claim_heap: heap_init): Likewise. * grub-core/lib/ieee1275/relocator.c (grub_relocator_firmware_get_max_events: count): Likewise. (grub_relocator_firmware_fill_events: fill): Likewise. Rename to ... (grub_relocator_firmware_fill_events_iter): ... this. * grub-core/lib/relocator.c (grub_relocator_alloc_chunk_align: hook): Likewise. Rename to ... (grub_relocator_alloc_chunk_align_iter): ... this. * grub-core/loader/i386/bsd.c (generate_e820_mmap: hook): Likewise. Rename to ... (generate_e820_mmap_iter): ... this. * grub-core/loader/i386/linux.c (find_mmap_size: hook): Likewise. Rename to ... (count_hook): ... this. (grub_linux_boot: hook): Likewise. Rename to ... (grub_linux_boot_mmap_find): ... this. (grub_linux_boot: hook_fill): Likewise. Rename to ... (grub_linux_boot_mmap_fill): ... this. * grub-core/loader/i386/multiboot_mbi.c (grub_fill_multiboot_mmap: hook): Likewise. Rename to ... (grub_fill_multiboot_mmap_iter): ... this. * grub-core/loader/multiboot.c (grub_get_multiboot_mmap_count: hook): Likewise. Rename to ... (count_hook): ... this. * grub-core/loader/multiboot_mbi2.c (grub_fill_multiboot_mmap: hook): Likewise. Rename to ... (grub_fill_multiboot_mmap_iter): ... this. * grub-core/loader/powerpc/ieee1275/linux.c (grub_linux_claimmap_iterate: alloc_mem): Likewise. * grub-core/loader/sparc64/ieee1275/linux.c (alloc_phys: choose): Likewise. Rename to ... (alloc_phys_choose): ... this. (determine_phys_base: get_physbase): Likewise. * grub-core/mmap/i386/mmap.c (grub_mmap_malign_and_register: find_hook): Likewise. * grub-core/mmap/i386/pc/mmap.c (preboot: fill_hook): Likewise. (malloc_hook: count_hook): Likewise. * grub-core/mmap/i386/uppermem.c (grub_mmap_get_lower: hook): Likewise. Rename to ... (lower_hook): ... this. (grub_mmap_get_upper: hook): Likewise. Rename to ... (upper_hook): ... this. (grub_mmap_get_post64: hook): Likewise. Rename to ... (post64_hook): ... this. * grub-core/mmap/mips/uppermem.c (grub_mmap_get_lower: hook): Likewise. Rename to ... (lower_hook): ... this. (grub_mmap_get_upper: hook): Likewise. Rename to ... (upper_hook): ... this. * grub-core/mmap/mmap.c (grub_mmap_iterate: count_hook): Likewise. (grub_mmap_iterate: fill_hook): Likewise. (fill_mask): Pass addr and mask within a single struct. (grub_cmd_badram: hook): Make static instead of nested. Rename to ... (badram_iter): ... this. (grub_cmd_cutmem: hook): Likewise. Rename to ... (cutmem_iter): ... this.
2013-01-15 12:02:35 +00:00
(*mmap_entry)->size = sizeof (struct multiboot_mmap_entry) - sizeof ((*mmap_entry)->size);
(*mmap_entry)++;
return 0;
}
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/* Fill previously allocated Multiboot mmap. */
static void
grub_fill_multiboot_mmap (struct multiboot_mmap_entry *first_entry)
{
struct multiboot_mmap_entry *mmap_entry = (struct multiboot_mmap_entry *) first_entry;
Remove nested functions from memory map iterators. * grub-core/efiemu/mm.c (grub_efiemu_mmap_iterate): Add hook_data argument, passed to hook. * grub-core/kern/i386/coreboot/mmap.c (grub_linuxbios_table_iterate): Likewise. (grub_machine_mmap_iterate: iterate_linuxbios_table): Make static instead of nested. (grub_machine_mmap_iterate): Add hook_data argument. * grub-core/kern/i386/multiboot_mmap.c (grub_machine_mmap_iterate): Add hook_data argument, passed to hook. * grub-core/kern/i386/pc/mmap.c (grub_machine_mmap_iterate): Likewise. * grub-core/kern/i386/qemu/mmap.c (grub_machine_mmap_iterate): Likewise. * grub-core/kern/ieee1275/mmap.c (grub_machine_mmap_iterate): Likewise. * grub-core/kern/mips/arc/init.c (grub_machine_mmap_iterate): Likewise. * grub-core/kern/mips/loongson/init.c (grub_machine_mmap_iterate): Likewise. * grub-core/kern/mips/qemu_mips/init.c (grub_machine_mmap_iterate): Likewise. * grub-core/mmap/efi/mmap.c (grub_efi_mmap_iterate): Likewise. (grub_machine_mmap_iterate): Likewise. * grub-core/mmap/mmap.c (grub_mmap_iterate): Likewise. * include/grub/efiemu/efiemu.h (grub_efiemu_mmap_iterate): Update prototype. * include/grub/memory.h (grub_memory_hook_t): Add data argument. Remove NESTED_FUNC_ATTR from here and from all users. (grub_mmap_iterate): Update prototype. (grub_efi_mmap_iterate): Update prototype. Update all callers to pass appropriate hook data. (grub_machine_mmap_iterate): Likewise. * grub-core/commands/acpi.c (grub_acpi_create_ebda: find_hook): Make static instead of nested. * grub-core/commands/lsmmap.c (grub_cmd_lsmmap: hook): Likewise. Rename to ... (lsmmap_hook): ... this. * grub-core/efiemu/mm.c (grub_efiemu_mmap_init: bounds_hook): Likewise. (grub_efiemu_mmap_fill: fill_hook): Likewise. * grub-core/kern/i386/coreboot/init.c (grub_machine_init: heap_init): Likewise. * grub-core/kern/i386/pc/init.c (grub_machine_init: hook): Likewise. Rename to ... (mmap_iterate_hook): ... this. * grub-core/kern/ieee1275/init.c (grub_claim_heap: heap_init): Likewise. * grub-core/lib/ieee1275/relocator.c (grub_relocator_firmware_get_max_events: count): Likewise. (grub_relocator_firmware_fill_events: fill): Likewise. Rename to ... (grub_relocator_firmware_fill_events_iter): ... this. * grub-core/lib/relocator.c (grub_relocator_alloc_chunk_align: hook): Likewise. Rename to ... (grub_relocator_alloc_chunk_align_iter): ... this. * grub-core/loader/i386/bsd.c (generate_e820_mmap: hook): Likewise. Rename to ... (generate_e820_mmap_iter): ... this. * grub-core/loader/i386/linux.c (find_mmap_size: hook): Likewise. Rename to ... (count_hook): ... this. (grub_linux_boot: hook): Likewise. Rename to ... (grub_linux_boot_mmap_find): ... this. (grub_linux_boot: hook_fill): Likewise. Rename to ... (grub_linux_boot_mmap_fill): ... this. * grub-core/loader/i386/multiboot_mbi.c (grub_fill_multiboot_mmap: hook): Likewise. Rename to ... (grub_fill_multiboot_mmap_iter): ... this. * grub-core/loader/multiboot.c (grub_get_multiboot_mmap_count: hook): Likewise. Rename to ... (count_hook): ... this. * grub-core/loader/multiboot_mbi2.c (grub_fill_multiboot_mmap: hook): Likewise. Rename to ... (grub_fill_multiboot_mmap_iter): ... this. * grub-core/loader/powerpc/ieee1275/linux.c (grub_linux_claimmap_iterate: alloc_mem): Likewise. * grub-core/loader/sparc64/ieee1275/linux.c (alloc_phys: choose): Likewise. Rename to ... (alloc_phys_choose): ... this. (determine_phys_base: get_physbase): Likewise. * grub-core/mmap/i386/mmap.c (grub_mmap_malign_and_register: find_hook): Likewise. * grub-core/mmap/i386/pc/mmap.c (preboot: fill_hook): Likewise. (malloc_hook: count_hook): Likewise. * grub-core/mmap/i386/uppermem.c (grub_mmap_get_lower: hook): Likewise. Rename to ... (lower_hook): ... this. (grub_mmap_get_upper: hook): Likewise. Rename to ... (upper_hook): ... this. (grub_mmap_get_post64: hook): Likewise. Rename to ... (post64_hook): ... this. * grub-core/mmap/mips/uppermem.c (grub_mmap_get_lower: hook): Likewise. Rename to ... (lower_hook): ... this. (grub_mmap_get_upper: hook): Likewise. Rename to ... (upper_hook): ... this. * grub-core/mmap/mmap.c (grub_mmap_iterate: count_hook): Likewise. (grub_mmap_iterate: fill_hook): Likewise. (fill_mask): Pass addr and mask within a single struct. (grub_cmd_badram: hook): Make static instead of nested. Rename to ... (badram_iter): ... this. (grub_cmd_cutmem: hook): Likewise. Rename to ... (cutmem_iter): ... this.
2013-01-15 12:02:35 +00:00
grub_mmap_iterate (grub_fill_multiboot_mmap_iter, &mmap_entry);
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}
#if GRUB_MACHINE_HAS_VBE || GRUB_MACHINE_HAS_VGA_TEXT
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static grub_err_t
fill_vbe_info (struct multiboot_info *mbi, grub_uint8_t *ptrorig,
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grub_uint32_t ptrdest, int fill_generic)
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{
grub_uint32_t vbe_mode;
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struct grub_vbe_mode_info_block *mode_info;
#if GRUB_MACHINE_HAS_VBE
grub_vbe_status_t status;
void *scratch = (void *) GRUB_MEMORY_MACHINE_SCRATCH_ADDR;
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status = grub_vbe_bios_get_controller_info (scratch);
if (status != GRUB_VBE_STATUS_OK)
return grub_error (GRUB_ERR_IO, "Can't get controller info.");
mbi->vbe_control_info = ptrdest;
grub_memcpy (ptrorig, scratch, sizeof (struct grub_vbe_info_block));
ptrorig += sizeof (struct grub_vbe_info_block);
ptrdest += sizeof (struct grub_vbe_info_block);
#else
mbi->vbe_control_info = 0;
#endif
#if GRUB_MACHINE_HAS_VBE
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status = grub_vbe_bios_get_mode (scratch);
vbe_mode = *(grub_uint32_t *) scratch;
if (status != GRUB_VBE_STATUS_OK)
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return grub_error (GRUB_ERR_IO, "can't get VBE mode");
#else
vbe_mode = 3;
#endif
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mbi->vbe_mode = vbe_mode;
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mode_info = (struct grub_vbe_mode_info_block *) ptrorig;
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mbi->vbe_mode_info = ptrdest;
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/* get_mode_info isn't available for mode 3. */
if (vbe_mode == 3)
{
grub_memset (mode_info, 0, sizeof (struct grub_vbe_mode_info_block));
mode_info->memory_model = GRUB_VBE_MEMORY_MODEL_TEXT;
mode_info->x_resolution = 80;
mode_info->y_resolution = 25;
}
else
{
#if GRUB_MACHINE_HAS_VBE
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status = grub_vbe_bios_get_mode_info (vbe_mode, scratch);
if (status != GRUB_VBE_STATUS_OK)
return grub_error (GRUB_ERR_IO, "can't get mode info");
grub_memcpy (mode_info, scratch,
sizeof (struct grub_vbe_mode_info_block));
#endif
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}
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ptrorig += sizeof (struct grub_vbe_mode_info_block);
ptrdest += sizeof (struct grub_vbe_mode_info_block);
#if GRUB_MACHINE_HAS_VBE
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grub_vbe_bios_get_pm_interface (&mbi->vbe_interface_seg,
&mbi->vbe_interface_off,
&mbi->vbe_interface_len);
#endif
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mbi->flags |= MULTIBOOT_INFO_VBE_INFO;
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if (fill_generic && mode_info->memory_model == GRUB_VBE_MEMORY_MODEL_TEXT)
{
mbi->framebuffer_addr = 0xb8000;
mbi->framebuffer_pitch = 2 * mode_info->x_resolution;
mbi->framebuffer_width = mode_info->x_resolution;
mbi->framebuffer_height = mode_info->y_resolution;
mbi->framebuffer_bpp = 16;
mbi->framebuffer_type = MULTIBOOT_FRAMEBUFFER_TYPE_EGA_TEXT;
mbi->flags |= MULTIBOOT_INFO_FRAMEBUFFER_INFO;
}
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return GRUB_ERR_NONE;
}
#endif
static grub_err_t
retrieve_video_parameters (struct multiboot_info *mbi,
grub_uint8_t *ptrorig, grub_uint32_t ptrdest)
{
grub_err_t err;
struct grub_video_mode_info mode_info;
void *framebuffer;
grub_video_driver_id_t driv_id;
struct grub_video_palette_data palette[256];
2010-01-16 15:25:43 +00:00
err = grub_multiboot_set_video_mode ();
if (err)
{
grub_print_error ();
grub_errno = GRUB_ERR_NONE;
}
grub_video_get_palette (0, ARRAY_SIZE (palette), palette);
driv_id = grub_video_get_driver_id ();
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#if GRUB_MACHINE_HAS_VGA_TEXT
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if (driv_id == GRUB_VIDEO_DRIVER_NONE)
return fill_vbe_info (mbi, ptrorig, ptrdest, 1);
#else
if (driv_id == GRUB_VIDEO_DRIVER_NONE)
return GRUB_ERR_NONE;
2010-01-14 14:54:14 +00:00
#endif
err = grub_video_get_info_and_fini (&mode_info, &framebuffer);
if (err)
return err;
mbi->framebuffer_addr = (grub_addr_t) framebuffer;
mbi->framebuffer_pitch = mode_info.pitch;
mbi->framebuffer_width = mode_info.width;
mbi->framebuffer_height = mode_info.height;
mbi->framebuffer_bpp = mode_info.bpp;
if (mode_info.mode_type & GRUB_VIDEO_MODE_TYPE_INDEX_COLOR)
{
struct multiboot_color *mb_palette;
unsigned i;
mbi->framebuffer_type = MULTIBOOT_FRAMEBUFFER_TYPE_INDEXED;
mbi->framebuffer_palette_addr = ptrdest;
mbi->framebuffer_palette_num_colors = mode_info.number_of_colors;
if (mbi->framebuffer_palette_num_colors > ARRAY_SIZE (palette))
mbi->framebuffer_palette_num_colors = ARRAY_SIZE (palette);
mb_palette = (struct multiboot_color *) ptrorig;
for (i = 0; i < mbi->framebuffer_palette_num_colors; i++)
{
mb_palette[i].red = palette[i].r;
mb_palette[i].green = palette[i].g;
mb_palette[i].blue = palette[i].b;
}
ptrorig += mbi->framebuffer_palette_num_colors
* sizeof (struct multiboot_color);
ptrdest += mbi->framebuffer_palette_num_colors
* sizeof (struct multiboot_color);
}
else
{
mbi->framebuffer_type = MULTIBOOT_FRAMEBUFFER_TYPE_RGB;
mbi->framebuffer_red_field_position = mode_info.red_field_pos;
mbi->framebuffer_red_mask_size = mode_info.red_mask_size;
mbi->framebuffer_green_field_position = mode_info.green_field_pos;
mbi->framebuffer_green_mask_size = mode_info.green_mask_size;
mbi->framebuffer_blue_field_position = mode_info.blue_field_pos;
mbi->framebuffer_blue_mask_size = mode_info.blue_mask_size;
}
mbi->flags |= MULTIBOOT_INFO_FRAMEBUFFER_INFO;
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#if GRUB_MACHINE_HAS_VBE
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if (driv_id == GRUB_VIDEO_DRIVER_VBE)
return fill_vbe_info (mbi, ptrorig, ptrdest, 0);
2010-01-14 14:54:14 +00:00
#endif
return GRUB_ERR_NONE;
}
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grub_err_t
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grub_multiboot_make_mbi (grub_uint32_t *target)
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{
struct multiboot_info *mbi;
struct multiboot_mod_list *modlist;
unsigned i;
struct module *cur;
grub_size_t mmap_size;
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grub_uint8_t *ptrorig;
grub_addr_t ptrdest;
2010-01-17 18:18:46 +00:00
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grub_err_t err;
grub_size_t bufsize;
2010-04-21 17:13:45 +00:00
grub_relocator_chunk_t ch;
2010-01-10 17:58:18 +00:00
2010-01-11 10:29:52 +00:00
bufsize = grub_multiboot_get_mbi_size ();
err = grub_relocator_alloc_chunk_align_safe (grub_multiboot_relocator, &ch,
0x10000, 0xa0000, bufsize, 4,
GRUB_RELOCATOR_PREFERENCE_NONE, 0);
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if (err)
return err;
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ptrorig = get_virtual_current_address (ch);
ptrdest = get_physical_target_address (ch);
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*target = ptrdest;
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mbi = (struct multiboot_info *) ptrorig;
ptrorig += sizeof (*mbi);
ptrdest += sizeof (*mbi);
grub_memset (mbi, 0, sizeof (*mbi));
grub_memcpy (ptrorig, cmdline, cmdline_size);
mbi->flags |= MULTIBOOT_INFO_CMDLINE;
mbi->cmdline = ptrdest;
ptrorig += ALIGN_UP (cmdline_size, 4);
ptrdest += ALIGN_UP (cmdline_size, 4);
grub_memcpy (ptrorig, PACKAGE_STRING, sizeof(PACKAGE_STRING));
mbi->flags |= MULTIBOOT_INFO_BOOT_LOADER_NAME;
mbi->boot_loader_name = ptrdest;
ptrorig += ALIGN_UP (sizeof(PACKAGE_STRING), 4);
ptrdest += ALIGN_UP (sizeof(PACKAGE_STRING), 4);
2010-09-15 09:42:18 +00:00
#ifdef GRUB_MACHINE_PCBIOS
{
struct grub_apm_info info;
if (grub_apm_get_info (&info))
{
struct multiboot_apm_info *mbinfo = (void *) ptrorig;
mbinfo->cseg = info.cseg;
mbinfo->offset = info.offset;
mbinfo->cseg_16 = info.cseg_16;
mbinfo->dseg = info.dseg;
mbinfo->flags = info.flags;
mbinfo->cseg_len = info.cseg_len;
mbinfo->dseg_len = info.dseg_len;
mbinfo->cseg_16_len = info.cseg_16_len;
mbinfo->version = info.version;
ptrorig += ALIGN_UP (sizeof (struct multiboot_apm_info), 4);
ptrdest += ALIGN_UP (sizeof (struct multiboot_apm_info), 4);
}
}
#endif
2010-01-10 17:58:18 +00:00
if (modcnt)
{
mbi->flags |= MULTIBOOT_INFO_MODS;
mbi->mods_addr = ptrdest;
mbi->mods_count = modcnt;
modlist = (struct multiboot_mod_list *) ptrorig;
ptrorig += modcnt * sizeof (struct multiboot_mod_list);
ptrdest += modcnt * sizeof (struct multiboot_mod_list);
for (i = 0, cur = modules; i < modcnt; i++, cur = cur->next)
{
modlist[i].mod_start = cur->start;
modlist[i].mod_end = modlist[i].mod_start + cur->size;
modlist[i].cmdline = ptrdest;
grub_memcpy (ptrorig, cur->cmdline, cur->cmdline_size);
ptrorig += ALIGN_UP (cur->cmdline_size, 4);
ptrdest += ALIGN_UP (cur->cmdline_size, 4);
}
}
else
{
mbi->mods_addr = 0;
mbi->mods_count = 0;
}
mmap_size = grub_multiboot_get_mmap_count ()
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* sizeof (struct multiboot_mmap_entry);
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grub_fill_multiboot_mmap ((struct multiboot_mmap_entry *) ptrorig);
mbi->mmap_length = mmap_size;
mbi->mmap_addr = ptrdest;
mbi->flags |= MULTIBOOT_INFO_MEM_MAP;
ptrorig += mmap_size;
ptrdest += mmap_size;
/* Convert from bytes to kilobytes. */
mbi->mem_lower = grub_mmap_get_lower () / 1024;
mbi->mem_upper = grub_mmap_get_upper () / 1024;
mbi->flags |= MULTIBOOT_INFO_MEMORY;
if (bootdev_set)
{
mbi->boot_device = bootdev;
mbi->flags |= MULTIBOOT_INFO_BOOTDEV;
}
2010-09-14 22:44:57 +00:00
{
struct grub_net_network_level_interface *net;
FOR_NET_NETWORK_LEVEL_INTERFACES(net)
if (net->dhcp_ack)
{
grub_memcpy (ptrorig, net->dhcp_ack, net->dhcp_acklen);
mbi->drives_addr = ptrdest;
mbi->drives_length = net->dhcp_acklen;
ptrorig += net->dhcp_acklen;
ptrdest += net->dhcp_acklen;
break;
}
}
2010-01-14 18:14:24 +00:00
if (elf_sec_num)
{
mbi->u.elf_sec.addr = ptrdest;
grub_memcpy (ptrorig, elf_sections, elf_sec_entsize * elf_sec_num);
mbi->u.elf_sec.num = elf_sec_num;
mbi->u.elf_sec.size = elf_sec_entsize;
mbi->u.elf_sec.shndx = elf_sec_shstrndx;
mbi->flags |= MULTIBOOT_INFO_ELF_SHDR;
ptrorig += elf_sec_entsize * elf_sec_num;
ptrdest += elf_sec_entsize * elf_sec_num;
2010-01-14 18:14:24 +00:00
}
err = retrieve_video_parameters (mbi, ptrorig, ptrdest);
if (err)
{
grub_print_error ();
grub_errno = GRUB_ERR_NONE;
}
if ((mbi->flags & MULTIBOOT_INFO_FRAMEBUFFER_INFO)
&& mbi->framebuffer_type == MULTIBOOT_FRAMEBUFFER_TYPE_INDEXED)
{
ptrorig += mbi->framebuffer_palette_num_colors
* sizeof (struct multiboot_color);
ptrdest += mbi->framebuffer_palette_num_colors
* sizeof (struct multiboot_color);
}
2010-09-15 22:22:49 +00:00
#if GRUB_MACHINE_HAS_VBE
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ptrorig += sizeof (struct grub_vbe_info_block);
ptrdest += sizeof (struct grub_vbe_info_block);
ptrorig += sizeof (struct grub_vbe_mode_info_block);
ptrdest += sizeof (struct grub_vbe_mode_info_block);
#endif
#ifdef GRUB_MACHINE_EFI
err = grub_efi_finish_boot_services (NULL, NULL, NULL, NULL, NULL);
if (err)
return err;
#endif
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return GRUB_ERR_NONE;
}
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void
grub_multiboot_add_elfsyms (grub_size_t num, grub_size_t entsize,
unsigned shndx, void *data)
{
elf_sec_num = num;
elf_sec_shstrndx = shndx;
elf_sec_entsize = entsize;
elf_sections = data;
}
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void
grub_multiboot_free_mbi (void)
{
struct module *cur, *next;
cmdline_size = 0;
total_modcmd = 0;
modcnt = 0;
grub_free (cmdline);
cmdline = NULL;
bootdev_set = 0;
for (cur = modules; cur; cur = next)
{
next = cur->next;
grub_free (cur->cmdline);
grub_free (cur);
}
modules = NULL;
modules_last = NULL;
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grub_free (elf_sections);
elf_sections = NULL;
elf_sec_entsize = 0;
elf_sec_num = 0;
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}
grub_err_t
grub_multiboot_init_mbi (int argc, char *argv[])
{
grub_ssize_t len = 0;
grub_multiboot_free_mbi ();
len = grub_loader_cmdline_size (argc, argv);
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cmdline = grub_malloc (len);
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if (! cmdline)
return grub_errno;
cmdline_size = len;
return grub_create_loader_cmdline (argc, argv, cmdline,
cmdline_size, GRUB_VERIFY_KERNEL_CMDLINE);
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}
grub_err_t
grub_multiboot_add_module (grub_addr_t start, grub_size_t size,
int argc, char *argv[])
{
struct module *newmod;
grub_size_t len = 0;
grub_err_t err;
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newmod = grub_malloc (sizeof (*newmod));
if (!newmod)
return grub_errno;
newmod->start = start;
newmod->size = size;
newmod->next = 0;
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len = grub_loader_cmdline_size (argc, argv);
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newmod->cmdline = grub_malloc (len);
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if (! newmod->cmdline)
{
grub_free (newmod);
return grub_errno;
}
newmod->cmdline_size = len;
total_modcmd += ALIGN_UP (len, 4);
err = grub_create_loader_cmdline (argc, argv, newmod->cmdline,
newmod->cmdline_size, GRUB_VERIFY_MODULE_CMDLINE);
if (err)
{
grub_free (newmod);
return grub_errno;
}
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if (modules_last)
modules_last->next = newmod;
else
modules = newmod;
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modules_last = newmod;
modcnt++;
return GRUB_ERR_NONE;
}
void
grub_multiboot_set_bootdev (void)
{
grub_uint32_t biosdev, slice = ~0, part = ~0;
grub_device_t dev;
#ifdef GRUB_MACHINE_PCBIOS
biosdev = grub_get_root_biosnumber ();
#else
biosdev = 0xffffffff;
#endif
if (biosdev == 0xffffffff)
return;
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dev = grub_device_open (0);
if (dev && dev->disk && dev->disk->partition)
{
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if (dev->disk->partition->parent)
{
part = dev->disk->partition->number;
slice = dev->disk->partition->parent->number;
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}
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else
slice = dev->disk->partition->number;
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}
if (dev)
grub_device_close (dev);
bootdev = ((biosdev & 0xff) << 24) | ((slice & 0xff) << 16)
| ((part & 0xff) << 8) | 0xff;
bootdev_set = 1;
}