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Author SHA1 Message Date
Vladimir Serbinenko
c6725996a9 A workaround for clang problem assembling startup_raw.S 
Signed-off-by: Vladimir Serbinenko <phcoder@google.com>
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
 2019-04-08 15:22:10 +10:00
Cao jin
9dcac673ed diskboot: Trivial correction on stale comments 
diskboot.img now is loaded at 0x8000 and is jumped to with 0:0x8000.

Signed-off-by: Cao jin <caoj.fnst@cn.fujitsu.com>
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
 2018-04-23 13:04:58 +02:00
Vladimir Serbinenko
3c6043245e qemu: Switch to more portable .org 
Binary is checked identical.
 2015-02-21 20:13:58 +01:00
Vladimir Serbinenko
8afd8f3b64 qemu: Fix GateA20 enabling. 
GateA20 code was inactive due to address error.
 2015-02-21 20:00:18 +01:00
Vladimir Serbinenko
e62ca2a870 qemu: Fix compilation 2015-02-21 19:55:53 +01:00
Vladimir Serbinenko
37353f0ae5 i386: Remove needless ADDR32 prefixes when address is known and fixed. 
Shaves off 6 bytes in lzma_decompress.img.
 2015-02-21 17:38:56 +01:00
Vladimir Serbinenko
1998d63688 i386-pc/boot: Explicitly mark kernel_address[_high] as local. 
Otherwise apple asm might try to make accesses relocatable.
 2015-02-21 17:20:10 +01:00
Vladimir Serbinenko
bc29c6d019 Change dot assignmnet to more portable .org. 
Binary is unchanged (verified)
 2015-02-21 17:19:01 +01:00
Vladimir Serbinenko
f571dc1af8 i386: Move from explicit ADDR32/DATA32 prefixes to instruction suffixes. 
Is more portable.
Binary is unchanged (verified).
 2015-02-21 17:13:23 +01:00
Vladimir Serbinenko
bc8fcf4bd3 * grub-core/boot/i386/qemu/boot.S: Add missing EXT_C. 2013-12-14 23:13:42 +01:00
Vladimir Serbinenko
5c066a81c2 Apple assembly doesn't handle symbol arithmetic well. So define an 
offset symbol in boot.S and use it.
 2013-11-24 07:12:12 +01:00
Vladimir Serbinenko
78f961efe9 Apple assembly doesn't handle symbol arithmetic well. So instead 
of getting addres of kernel_sector + 4 define kernel_sector_high.
	It also makes code more readable.
 2013-11-24 07:11:00 +01:00
Vladimir Serbinenko
09bc0a577d With Apple assembly in .macro environvemnt you have to use $$ instead 
of $. So introduce new preprocessor macro MACRO_DOLLAR(x) which expands
	to $$x on Apple and to $x on everything else.
 2013-11-24 07:08:18 +01:00
Vladimir Serbinenko
6f2e82be3a * grub-core/boot/i386/pc/boot.S: Fix floppy probe. Due to missing 
%dx restore the probe worked on non-existant drive. Reorganize the
	code a little bit to free 2 bytes necessary for push/pop.
 2013-11-24 05:05:33 +01:00
Vladimir Serbinenko
1bba40f578 Move common BIOS/coreboot memory map declarations to 
include/grub/i386/memory_raw.h and eliminate duplicate declarations.
 2013-11-23 12:39:21 +01:00
Vladimir Serbinenko
ad2dc00309 * grub-core/boot/i386/pc/startup_raw.S (grub_gate_a20): Remove 
argument. We don't disable Gate A20 in this code.
 2013-10-25 11:03:39 +02:00
Vladimir Serbinenko
b46684ae53 * grub-core/boot/i386/qemu/boot.S: Ensure that A20 is enabled. 
Conceptually based on change in branch "vbe-on-coreboot".
 2013-10-25 10:51:58 +02:00
Josh Triplett
68b777070a * grub-core/boot/i386/pc/lnxboot.S: Re-add support for recording the 
boot partition.
 2013-09-23 14:31:42 +02:00
Andrey Borzenkov
cc28411296 Fix make dist on non-pc. 2013-06-07 18:23:08 +02:00
Vladimir 'phcoder' Serbinenko
b49fe8792a Move GRUB out of system area when using xorriso 1.2.9 or later. 2013-04-14 18:53:14 +02:00
Vladimir 'phcoder' Serbinenko
f7143efe1b * grub-core/boot/i386/pc/startup_raw.S [__APPLE__]: Add Apple assembly 
version.
	* grub-core/commands/i386/pc/drivemap_int13h.S [__APPLE__]: Likewise.
	* grub-core/kern/i386/pc/startup.S [__APPLE__]: Likewise.
	* grub-core/lib/i386/relocator16.S [__APPLE__]: Likewise.
	* grub-core/lib/i386/relocator_common.S [__APPLE__]: Likewise.
	* grub-core/mmap/i386/pc/mmap_helper.S [__APPLE__]: Likewise.
 2012-05-28 17:51:57 +02:00
Vladimir 'phcoder' Serbinenko
52bfedfa39 * grub-core/boot/i386/pc/startup_raw.S (multiboot_trampoline): Fix 
size calculation.
	* grub-core/kern/i386/realmode.S (realidt): Assume default BIOS IDT if
	none is known.
 2012-03-08 18:54:25 +01:00
Vladimir 'phcoder' Serbinenko
ef023e42a2 * grub-core/boot/i386/pc/startup_raw.S: Move decompressor_end to .bss 
to ensure that it's after the last byte of .text.
 2012-03-02 11:24:24 +01:00
Vladimir 'phcoder' Serbinenko
fa6ec5734f * grub-core/boot/i386/pc/startup_raw.S: Use separate 
reed_solomon_size const definition instead of computing it since
	Apple assembler doesn't support the later.
 2012-02-29 19:12:16 +01:00
Vladimir 'phcoder' Serbinenko
fb88381212 * grub-core/boot/i386/pc/diskboot.S (firstlist): Rename to ... 
(LOCAL(firstlist)): ... this. Move it before the firstlist and not
	after. All users updated.
 2012-02-29 15:26:42 +01:00
Vladimir 'phcoder' Serbinenko
94f064b4c9 Fix interrupt mixup from previous commit. 
* include/grub/i386/pc/int.h (grub_i386_idt): New struct.
	(grub_realidt): New var.
	* grub-core/lib/i386/relocator16.S (grub_relocator16_idt): New variable
	Load idt.
	* grub-core/lib/i386/relocator.c (grub_relocator16_idt):
	New declaration.
	(grub_relocator16_boot): Set grub_relocator16_idt.
	* grub-core/kern/i386/realmode.S (realidt): Renamed to ...
	(LOCAL(realidt)): ... this.
	* grub-core/boot/i386/pc/startup_raw.S: Pass pointer to realidt in eax.
	* grub-core/kern/i386/pc/startup.S: Save pointer to realidt.
	(grub_realidt): New variable.
 2012-02-26 22:10:13 +01:00
Vladimir 'phcoder' Serbinenko
f37c87e1ba * grub-core/boot/i386/pc/lnxboot.S: Use 
GRUB_DECOMPRESSOR_MAX_DECOMPRESSOR_SIZE.
	* grub-core/boot/i386/pc/startup_raw.S: Ensure about boot_dev
	location.
	* include/grub/offsets.h (GRUB_DECOMPRESSOR_I386_PC_BOOT_DEVICE): New
	definition.
	(GRUB_DECOMPRESSOR_I386_PC_MAX_DECOMPRESSOR_SIZE): Likewise.
 2012-01-29 23:20:02 +01:00
Vladimir 'phcoder' Serbinenko
2e13ede59e Eliminate fixed limit on reed solomon decoder length. 
* grub-core/boot/i386/pc/lnxboot.S: Scan for multiboot signature
	rather than hardcoding the address.
	* grub-core/boot/i386/pc/startup_raw.S: Add new data field
	no_reed_solomon_length.
	Move gate_a20 to no-reed-solomon part.
	Don't force a particular size of no reed-solomon part.
	* include/grub/offsets.h (GRUB_KERNEL_I386_PC_NO_REED_SOLOMON_PART):
	Removed.
	(GRUB_KERNEL_I386_PC_NO_REED_SOLOMON_LENGTH): New define.
	* util/grub-setup.c (setup): Read no_rs_length from the image itself.
 2012-01-24 14:39:29 +01:00
Vladimir 'phcoder' Serbinenko
1f0b1a7730 * grub-core/boot/i386/pc/startup_raw.S: Add missing argument for 
_LzmaDecodeA.
 2011-12-23 10:21:27 +01:00
Vladimir 'phcoder' Serbinenko
276b7a8bdd * grub-core/boot/i386/pc/startup_raw.S: Clear direction flag for 
certainety.
 2011-12-15 19:22:36 +01:00
Vladimir 'phcoder' Serbinenko
e3fd394a10 * grub-core/boot/i386/pc/startup_raw.S: Move realmode routines to 
non-RS part to avoid RS messing with GDT.
	* include/grub/offsets.h (GRUB_KERNEL_I386_PC_NO_REED_SOLOMON_PART):
	Increase to suit in realmode routines.
 2011-12-15 19:20:41 +01:00
Vladimir 'phcoder' Serbinenko
b81d609e4c * grub-core/kern/i386/realmode.S: Increase alignment. 
* grub-core/boot/i386/pc/startup_raw.S: Likewise.
 2011-12-15 19:17:36 +01:00
Vladimir 'phcoder' Serbinenko
5fbdac149b Defer multiboot device parsing until we're in compressed part. 
* grub-core/boot/i386/pc/lnxboot.S: Remove setting dos_part and
	bsd_part. setdevice has fallen into disuse.
	* grub-core/boot/i386/pc/startup_raw.S (dos_part): Removed.
	(bsd_part): Likewise.
	(boot_dev): New variable.
	(multiboot_trampoline): Don't parse multiboot device.
	Pass multiboot device in %edx.
	* grub-core/disk/i386/pc/biosdisk.c (GRUB_MOD_INIT): Parse
	grub_boot_device.
	* grub-core/kern/i386/pc/init.c (grub_machine_get_bootlocation):
	Likewise.
	* grub-core/kern/i386/pc/startup.S: Save edx.
	(grub_boot_drive): Removed.
	(grub_install_dos_part): Likewise.
	(grub_install_bsd_part): Likewise.
	(grub_boot_device): New variable.
	* include/grub/i386/pc/kernel.h (grub_install_dos_part): Removed.
	(grub_install_bsd_part): Likewise.
	(grub_boot_drive): Likewise.
	(grub_boot_device): New variable.
	* include/grub/offsets.h (GRUB_KERNEL_I386_PC_INSTALL_DOS_PART):
	Removed.
	(GRUB_KERNEL_I386_PC_INSTALL_BSD_PART): Likewise.
	(GRUB_KERNEL_I386_PC_REED_SOLOMON_REDUNDANCY): Moved lower.
	(GRUB_KERNEL_MACHINE_INSTALL_BSD_PART): Removed.
	(GRUB_KERNEL_MACHINE_INSTALL_DOS_PART): Likewise.
	* util/grub-install.in: Remove redundant condition.
 2011-11-12 21:12:52 +01:00
Vladimir 'phcoder' Serbinenko
691cbb5816 Fix bug introduced by previous commit. 
* grub-core/boot/i386/pc/startup_raw.S: Compute RS start correctly.
 2011-11-12 20:53:46 +01:00
Vladimir 'phcoder' Serbinenko
60240b8bc1 Use decompressors framework on i386-pc. It increases core size 
by 46 bytes but improves compatibility and maintainability.

	* grub-core/Makefile.core.def (lzma_decompress): New image.
	(kernel): Add i386_pc_ldflags.
	* grub-core/kern/i386/pc/startup.S: Move intial part to ..
	* grub-core/boot/i386/pc/startup_raw.S: ... here. Pass pointers
	to real_to_prot, prot_to_real and device info.
	* include/grub/offsets.h: Renamed decompressor offsets.
	* util/grub-mkimage.c (grub_compression_t): New cmpression lzma.
	(image_target_desc): Remove raw_size and rename decompressor fields.
	(compress_kernel): Handle lzma.
	(generate_image): Handle decompressors on i386-pc.
 2011-11-12 19:53:25 +01:00
Vladimir 'phcoder' Serbinenko
de9c615e5c Removed unused GRUB_BOOT_VERSION. Check for kernel version is better 
done with a dedicated section.

	* grub-core/boot/sparc64/ieee1275/boot.S: Remove GRUB_BOOT_VERSION.
	Ensure the correct position of boot_path.
	* grub-core/kern/i386/efi/startup.S: Remove GRUB_BOOT_VERSION.
	* grub-core/kern/i386/pc/startup.S: Likewise. Ensure correct position of
	other fields.
	* grub-core/kern/x86_64/efi/startup.S: Remove GRUB_BOOT_VERSION.
	* include/grub/boot.h: Removed. All references removed.
	* include/grub/sparc64/ieee1275/boot.h (GRUB_BOOT_MACHINE_VER_MAJ):
	Removed.
	(GRUB_BOOT_MACHINE_BOOT_DEVPATH): Make it lower.
 2011-10-19 23:01:44 +02:00
Colin Watson
9b43bf396a * grub-core/boot/i386/pc/lnxboot.S (real_code_2): Ensure that the 
initial chunk read from the kernel always includes GRUB's multiboot
header, which is now outside the first sector.
 2011-03-11 11:51:10 +00:00
Mirko Parthey
5c408d0f50 * grub-core/boot/i386/pc/boot.S: Fix %es:%bx pointing to nowhere on 
floppy probe.
 2010-12-26 20:49:08 +01:00
Vladimir 'phcoder' Serbinenko
edde54e656 * grub-core/boot/i386/pc/lnxboot.S: Replace 
GRUB_KERNEL_I386_PC_MULTIBOOT_SIGNATURE with
	GRUB_KERNEL_I386_PC_NO_REED_SOLOMON_PART.
 2010-09-29 22:45:57 +02:00
Vladimir 'phcoder' Serbinenko
e0337366d1 * grub-core/boot/i386/pc/boot.S: Ignore %dl if it's not in a sane range. 2010-09-20 00:06:45 +02:00
Vladimir 'phcoder' Serbinenko
df3df23d5c Reorganise memory map handling 2010-09-04 17:10:10 +02:00
Vladimir 'phcoder' Serbinenko
c8e7bf5ff7 Compress grub_prefix. 
* grub-core/boot/i386/pc/lnxboot.S: Use
	GRUB_KERNEL_I386_PC_MULTIBOOT_SIGNATURE.
	* grub-core/kern/i386/pc/startup.S: Move grub_prefix to compressed part.
	* include/grub/offsets.h: Rename GRUB_MACHINE_DATA_END to
	GRUB_MACHINE_PREFIX_END. All users updated.
	(GRUB_KERNEL_I386_PC_PREFIX): Set to GRUB_KERNEL_I386_PC_RAW_SIZE.
	(GRUB_KERNEL_I386_PC_PREFIX_END): Set to GRUB_KERNEL_I386_PC_PREFIX
	+ 0x40.
	(GRUB_KERNEL_I386_PC_RAW_SIZE): Decrease.
	* util/grub-mkimage.c (image_target_desc): Change data_end to
	prefix_end. All users updated.
 2010-09-03 14:54:04 +02:00
Vladimir 'phcoder' Serbinenko
671404469c Handle USB pendrives exposed as floppies. 
* grub-core/boot/i386/pc/boot.S: Check LBA even on what appears to be
	floppy.
	* grub-core/disk/i386/pc/biosdisk.c (grub_biosdisk_open): Likewise.
	Check for partitions on all devices.
 2010-08-27 03:44:55 +02:00
BVK Chaitanya
297f0c2b6e merge with mainline 2010-07-13 00:43:28 +05:30
BVK Chaitanya
692d7c2855 pull-in emu-lite branch 2010-05-26 17:49:05 +05:30
BVK Chaitanya
8c41176882 automake commit without merge history 2010-05-06 11:34:04 +05:30