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38cc1c3df7
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Yinghai Lu 38cc1c3df7 x86: work around MTRR mask setting 
Joshua Hoblitt reported that only 3 GB of his 16 GB of RAM is
usable. Booting with mtrr_show showed us the BIOS-initialized
MTRR settings - which are all wrong.

So the root cause is that the BIOS has not set the mask correctly:

>               [    0.429971]  MSR00000200: 00000000d0000000
>               [    0.433305]  MSR00000201: 0000000ff0000800
> should be ==> [    0.433305]  MSR00000201: 0000003ff0000800
>
>               [    0.436638]  MSR00000202: 00000000e0000000
>               [    0.439971]  MSR00000203: 0000000fe0000800
> should be ==> [    0.439971]  MSR00000203: 0000003fe0000800
>
>               [    0.443304]  MSR00000204: 0000000000000006
>               [    0.446637]  MSR00000205: 0000000c00000800
> should be ==> [    0.446637]  MSR00000205: 0000003c00000800
>
>               [    0.449970]  MSR00000206: 0000000400000006
>               [    0.453303]  MSR00000207: 0000000fe0000800
> should be ==> [    0.453303]  MSR00000207: 0000003fe0000800
>
>               [    0.456636]  MSR00000208: 0000000420000006
>               [    0.459970]  MSR00000209: 0000000ff0000800
> should be ==> [    0.459970]  MSR00000209: 0000003ff0000800

So detect this borkage and add the prefix 111.

Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com>
Cc: <stable@kernel.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-08-22 05:49:35 +02:00
..
alpha alpha: move include/asm-alpha to arch/alpha/include/asm 2008-08-15 09:19:40 -07:00
arm Merge master.kernel.org:/home/rmk/linux-2.6-arm 2008-08-16 16:48:45 -07:00
avr32 avr32: Make atstk1006_nand_data definition static 2008-08-08 12:44:56 +02:00
blackfin Blackfin arch: hook up some missing new system calls 2008-08-14 15:40:19 +08:00
cris Merge branch 'linus' into core/generic-dma-coherent 2008-07-29 00:07:55 +02:00
frv FRV: Wire up new system calls 2008-08-01 13:03:49 -07:00
h8300 [h8300] move include/asm-h8300 to arch/h8300/include/asm 2008-08-13 14:26:32 -07:00
ia64 kexec jump: rename KEXEC_CONTROL_CODE_SIZE to KEXEC_CONTROL_PAGE_SIZE 2008-08-15 08:35:42 -07:00
m32r m32r: use generic show_mem() 2008-07-26 12:00:11 -07:00
m68k m68k{,nommu}: Wire up new system calls 2008-08-11 10:37:34 -07:00
m68knommu m68k{,nommu}: Wire up new system calls 2008-08-11 10:37:34 -07:00
mips remove unneeded #include <linux/ide.h>'s 2008-08-05 18:17:00 +02:00
mn10300 mn10300: Fix up __bug_table handling in module loader. 2008-08-04 17:22:17 -07:00
parisc [PATCH] sanitize __user_walk_fd() et.al. 2008-07-26 20:53:34 -04:00
powerpc powerpc: Use generic compat_sys_old_readdir 2008-08-18 14:22:35 +10:00
s390 kexec jump: rename KEXEC_CONTROL_CODE_SIZE to KEXEC_CONTROL_PAGE_SIZE 2008-08-15 08:35:42 -07:00
sh kexec jump: rename KEXEC_CONTROL_CODE_SIZE to KEXEC_CONTROL_PAGE_SIZE 2008-08-15 08:35:42 -07:00
sparc sparc64: Implement IRQ stacks. 2008-08-12 18:33:56 -07:00
sparc64 sparc64: Fix cmdline_memory_size handling bugs. 2008-08-14 01:45:41 -07:00
um uml: fix tty-related build error 2008-07-30 09:41:45 -07:00
x86 x86: work around MTRR mask setting 2008-08-22 05:49:35 +02:00
xtensa remove unneeded #include <linux/ide.h>'s 2008-08-05 18:17:00 +02:00
.gitignore
Kconfig tracehook: CONFIG_HAVE_ARCH_TRACEHOOK 2008-07-26 12:00:09 -07:00