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Author SHA1 Message Date
Cao jin
27dd2885e1 relocator16: Comments update 
Signed-off-by: Cao jin <caoj.fnst@cn.fujitsu.com>
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
 2020-09-21 13:29:05 -04:00
C. Masloch
08bcec5020 Improve FreeDOS direct loading support compatibility. 
* include/grub/i386/relocator.h (grub_relocator16_state):
	New member ebp.
	* grub-core/lib/i386/relocator.c (grub_relocator16_ebp): New extern
	variable.
	(grub_relocator16_boot): Handle %ebp.
	* grub-core/lib/i386/relocator16.S: Likewise.
	* grub-core/loader/i386/pc/freedos.c:
	Load BPB to pass kernel which partition to load from.
	Check that kernel file is not too large.
	Set register dl to BIOS unit number as well.
 2013-01-27 16:07:25 +01:00
Vladimir 'phcoder' Serbinenko
489509f40e Apple fixes. 
* grub-core/lib/i386/relocator16.S: Use correct __APPLE__ and not
	__APPLE_
	* grub-core/lib/i386/relocator_common.S [__APPLE__]: Fix gdtdesc
	definition.
	* grub-core/lib/i386/relocator64.S [__APPLE__]: Assemble jmp manually.
 2012-06-26 14:56:28 +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
bea359d657 * grub-core/lib/i386/relocator16.S: Declare LOCAL(relocator16_end) 
for local arithmetics.
	Break %sp init into 2 instructions.
	Add 0 byte at the end.
 2012-02-29 15:00:54 +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
37bb97fe9a * grub-core/lib/i386/relocator16.S: Fix incorrect use of absolute 
address.
 2012-02-10 14:47:06 +01:00
Vladimir 'phcoder' Serbinenko
9c4b5c13e6 Improve gettext support. Stylistic fixes and error handling fixes while 
on it.
 2012-02-08 19:26:01 +01:00
Vladimir 'phcoder' Serbinenko
215c90cb82 * grub-core/lib/i386/relocator16.S: Revert moving A20 code into PM 
part. Instead setup the correct stack in RM.
	* grub-core/lib/i386/relocator.c (grub_relocator16_boot): Reserve place
	for stack.
	* include/grub/i386/relocator_private.h: New file.
 2012-02-07 22:31:14 +01:00
Vladimir 'phcoder' Serbinenko
a51dab1328 * grub-core/lib/i386/relocator16.S (grub_relocator16_start): Move switch 
to real mode down to execute A20-related code in protected mode as
	intended.
 2012-02-05 10:12:18 +01:00
Vladimir 'phcoder' Serbinenko
db1326f5fb Move chainloader_real_boot out of the kernel 2011-10-21 00:16:59 +02:00
Vladimir 'phcoder' Serbinenko
e3a1073fd2 FreeDOS direct loading support. 
* docs/grub.texi (Supported OS): Add FreeDOS.
	* grub-core/Makefile.core.def (freedos): New module.
	* grub-core/lib/i386/relocator.c (grub_relocator16_ebx): New extern
	variable.
	(grub_relocator16_boot): Handle %ebx.
	* grub-core/lib/i386/relocator16.S: Likewise.
	* grub-core/loader/i386/pc/freedos.c: New file.
 2011-05-18 12:15:16 +02:00
Colin Watson
b13f79a427 Fix stack pointer handling in 16-bit relocator. 
* grub-core/lib/i386/relocator16.S (grub_relocator16_start): Move
grub_relocator16_sp to %esp rather than %ss, and zero-extend it.
Fixes Ubuntu bug #683904.
 2011-04-21 00:07:22 +01:00
Vladimir 'phcoder' Serbinenko
b28fd807eb freedos support 2010-12-26 00:38:20 +01:00
Vladimir 'phcoder' Serbinenko
16bd6cfab2 Merge mainline into newreloc. For now without boot tests 2010-08-25 03:25:18 +02:00