H. Peter Anvin bca23dba76 x86, setup: revert ACPI 3 E820 extended attributes support ... Remove ACPI 3 E820 extended memory attributes support. At least one vendor actively set all the flags to zero, but left ECX on return at 24. This bug may be present in other BIOSes. The breakage functionally means the ACPI 3 flags are probably completely useless, and that no OS any time soon is going to rely on their existence. Therefore, drop support completely. We may want to revisit this question in the future, if we find ourselves actually needing the flags. This reverts all or part of the following checkins: cd670599b7 c549e71d07 However, retain the part from the latter commit that copies e820 into a temporary buffer; that is an unrelated BIOS workaround. Put in a comment to explain that part. See https://bugzilla.redhat.com/show_bug.cgi?id=499396 for some additional information. [ Impact: detect all memory on affected machines ] Reported-by: Thomas J. Baker <tjb@unh.edu> Signed-off-by: H. Peter Anvin <hpa@zytor.com> Acked-by: Len Brown <len.brown@intel.com> Cc: Chuck Ebbert <cebbert@redhat.com> Cc: Kyle McMartin <kmcmartin@redhat.com> Cc: Matt Domsch <matt_domsch@dell.com>		2009-05-22 11:14:02 -07:00
..
compressed	x86, setup: compile with -DDISABLE_BRANCH_PROFILING	2009-04-03 16:34:45 +02:00
tools	x86: remove zImage support	2009-03-11 11:00:00 -07:00
.gitignore
a20.c	x86: remove the Voyager 32-bit subarch	2009-02-23 00:54:01 +01:00
apm.c
bitops.h
boot.h	x86: remove the Voyager 32-bit subarch	2009-02-23 00:54:01 +01:00
cmdline.c
code16gcc.h
copy.S	x86: copy.S - use GLOBAL,ENDPROC macros	2009-02-19 17:13:00 +01:00
cpu.c
cpucheck.c
edd.c
header.S	x86: remove zImage support	2009-03-11 11:00:00 -07:00
install.sh
main.c	x86: remove the Voyager 32-bit subarch	2009-02-23 00:54:01 +01:00
Makefile	x86, setup: compile with -DDISABLE_BRANCH_PROFILING	2009-04-03 16:34:45 +02:00
mca.c
memory.c	x86, setup: revert ACPI 3 E820 extended attributes support	2009-05-22 11:14:02 -07:00
mkcpustr.c
mtools.conf.in
pm.c	x86: remove zImage support	2009-03-11 11:00:00 -07:00
pmjump.S	x86, setup: move 32-bit code to .text32	2009-03-17 15:26:06 -07:00
printf.c
setup.ld	x86, setup: move 32-bit code to .text32	2009-03-17 15:26:06 -07:00
string.c
tty.c	x86: use limited register constraint for setnz	2008-11-25 15:38:03 +01:00
version.c
vesa.h
video-bios.c	x86: make variables static	2008-10-22 07:31:28 +02:00
video-mode.c
video-vesa.c	x86 setup: fix asm constraints in vesa_store_edid	2009-01-30 23:55:25 +01:00
video-vga.c	x86, setup: un-resequence mode setting for VGA 80x34 and 80x60 modes	2009-04-07 10:59:25 -07:00
video.c	x86: boot - fix sparse warnings	2008-11-23 19:58:58 +01:00
video.h