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9900aa2f95
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H. Peter Anvin 9900aa2f95 x86-64: Handle exception table entries during early boot 
If we get an exception during early boot, walk the exception table to
see if we should intercept it.  The main use case for this is to allow
rdmsr_safe()/wrmsr_safe() during CPU initialization.

Since the exception table is currently sorted at runtime, and fairly
late in startup, this code walks the exception table linearly.  We
obviously don't need to worry about modules, however: none have been
loaded at this point.

[ v2: Use early_fixup_exception() instead of linear search ]

Link: http://lkml.kernel.org/r/1334794610-5546-5-git-send-email-hpa@zytor.com
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
2012-04-19 15:42:45 -07:00
..
alpha alpha: fix build failures from system.h dismemberment 2012-04-13 13:15:16 -04:00
arm Merge branch 'fixes' of git://git.linaro.org/people/rmk/linux-arm 2012-04-15 17:35:19 -07:00
avr32 avr32: fix nop compile fails from system.h split up 2012-04-04 08:23:44 -07:00
blackfin blackfin: update defconfig for bf527-ezkit 2012-04-06 10:25:03 +08:00
c6x irq: Kill pointless irqd_to_hw export 2012-04-10 22:39:17 -06:00
cris Merge branch 'x86-x32-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2012-03-29 18:12:23 -07:00
frv frv: fix warnings in mb93090-mb00/pci-dma.c about implicit EXPORT_SYMBOL 2012-04-02 14:41:26 -07:00
h8300 Merge branch 'x86-x32-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2012-03-29 18:12:23 -07:00
hexagon Merge branch 'for-linus' of git://git.linaro.org/people/mszyprowski/linux-dma-mapping 2012-04-04 17:13:43 -07:00
ia64 ia64: populate the cmpxchg header with appropriate code 2012-04-13 13:15:16 -04:00
m32r Merge branch 'x86-x32-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2012-03-29 18:12:23 -07:00
m68k m68k/q40: Add missing platform check before registering platform devices 2012-04-01 22:57:53 +02:00
microblaze Merge branch 'for-linus' of git://git.linaro.org/people/mszyprowski/linux-dma-mapping 2012-04-04 17:13:43 -07:00
mips MIPS: Select BUILDTIME_EXTABLE_SORT 2012-04-19 15:06:56 -07:00
mn10300 Merge branch 'x86-x32-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2012-03-29 18:12:23 -07:00
openrisc Disintegrate and delete asm/system.h 2012-03-28 15:58:21 -07:00
parisc parisc: fix missing cmpxchg file error from system.h split 2012-04-02 14:41:26 -07:00
powerpc irqdomain bug fixes for v3.4-rc3 2012-04-12 12:49:56 -07:00
s390 [S390] Fix build errors (fallout from system.h disintegration) 2012-03-30 09:41:12 +02:00
score Delete all instances of asm/system.h 2012-03-28 18:30:03 +01:00
sh SuperH updates for 3.4-rc1 2012-04-07 09:52:46 -07:00
sparc sparc64: Eliminate obsolete __handle_softirq() function 2012-04-13 11:58:38 -07:00
tile arch/tile: avoid unused variable warning in proc.c for tilegx 2012-04-11 12:45:20 -04:00
um um: uml_setup_stubs': warning: unused variable 'pages' 2012-04-10 00:13:45 +02:00
unicore32 Merge branch 'for-linus' of git://git.linaro.org/people/mszyprowski/linux-dma-mapping 2012-04-04 17:13:43 -07:00
x86 x86-64: Handle exception table entries during early boot 2012-04-19 15:42:45 -07:00
xtensa Merge branch 'x86-x32-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2012-03-29 18:12:23 -07:00
.gitignore
Kconfig Merge git://git.kernel.org/pub/scm/linux/kernel/git/cmetcalf/linux-tile 2012-03-29 14:49:45 -07:00