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c549e71d07
linux/arch/x86/boot
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H. Peter Anvin c549e71d07 x86, setup: ACPI 3, BIOS workaround for E820-probing code 
Impact: ACPI 3 spec compliance, BIOS bug workaround

The ACPI 3 spec added another field to the E820 buffer -- which is
backwards incompatible, since it contains a validity bit.
Furthermore, there has been at least one report of a BIOS which
assumes that the buffer it is pointed at is the same buffer as for the
previous E820 call.  Therefore, read the data into a temporary buffer
and copy the standard part of it if and only if the valid bit is set.

Signed-off-by: H. Peter Anvin <hpa@zytor.com>
2009-03-28 18:20:07 -07:00
..
compressed Merge branches 'x86/apic', 'x86/cpu', 'x86/fixmap', 'x86/mm', 'x86/sched', 'x86/setup-lzma', 'x86/signal' and 'x86/urgent' into x86/core 2009-03-04 02:22:31 +01:00
tools x86: remove zImage support 2009-03-11 11:00:00 -07:00
.gitignore Update .gitignore files 2008-04-25 12:27:32 -07:00
a20.c x86: remove the Voyager 32-bit subarch 2009-02-23 00:54:01 +01:00
apm.c x86: remove pointless comments 2008-04-19 19:19:54 +02:00
bitops.h x86: remove pointless comments 2008-04-19 19:19:54 +02:00
boot.h x86: remove the Voyager 32-bit subarch 2009-02-23 00:54:01 +01:00
cmdline.c x86: remove pointless comments 2008-04-19 19:19:54 +02:00
code16gcc.h
copy.S x86: copy.S - use GLOBAL,ENDPROC macros 2009-02-19 17:13:00 +01:00
cpu.c x86 setup: handle more than 8 CPU flag words 2008-09-16 15:09:26 -07:00
cpucheck.c x86: boot: stub out unimplemented CPU feature words 2008-09-05 16:13:44 -07:00
edd.c Revert "x86: fix ghost EDD devices in /sys again" 2008-10-03 10:22:33 -07:00
header.S x86: remove zImage support 2009-03-11 11:00:00 -07:00
install.sh x86: remove pointless comments 2008-04-19 19:19:54 +02:00
main.c x86: remove the Voyager 32-bit subarch 2009-02-23 00:54:01 +01:00
Makefile x86: use targets in the boot Makefile instead of CLEAN_FILES 2009-03-12 13:43:14 -07:00
mca.c x86: remove pointless comments 2008-04-19 19:19:54 +02:00
memory.c x86, setup: ACPI 3, BIOS workaround for E820-probing code 2009-03-28 18:20:07 -07:00
mkcpustr.c x86 setup: handle more than 8 CPU flag words 2008-09-16 15:09:26 -07:00
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 x86: boot/printfc use NULL instead 0 2008-05-25 08:58:25 +02:00
setup.ld x86, setup: move 32-bit code to .text32 2009-03-17 15:26:06 -07:00
string.c x86: remove pointless comments 2008-04-19 19:19:54 +02:00
tty.c x86: use limited register constraint for setnz 2008-11-25 15:38:03 +01:00
version.c x86: remove pointless comments 2008-04-19 19:19:54 +02:00
vesa.h x86-boot: don't request VBE2 information 2008-03-07 16:39:14 +01:00
video-bios.c x86: make variables static 2008-10-22 07:31:28 +02:00
video-mode.c x86: move suspend wakeup code to C 2008-04-17 17:41:37 +02:00
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: fix the setting of 480-line VGA modes 2009-03-18 16:54:05 -07:00
video.c x86: boot - fix sparse warnings 2008-11-23 19:58:58 +01:00
video.h x86: remove pointless comments 2008-04-19 19:19:54 +02:00