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Author SHA1 Message Date
Vladimir Serbinenko
08452decc8 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>
 2020-09-21 20:00:17 -04:00
Cao jin
5378b6a6fa 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>
 2020-09-21 12:43:53 -04:00
Matthew Garrett
c2eee36ec0 Fix boot when there's no TPM 
If the firmware has TPM support but has no TPM, we're jumping to core.img
without popping the registers back onto the stack. Fix that.
 2016-03-23 17:02:52 -07:00
Matthew Garrett
1e32d63145 Add BIOS boot measurement 
Measure the on-disk grub core on BIOS systems - unlike UEFI, the firmware
can't do this stage for us.
 2016-01-05 14:35:17 -08:00
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