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Carsten Otte 9ff4cfb3fc [S390] kvm-390: Let kernel exit SIE instruction on work 
From: Christian Borntraeger <borntraeger@de.ibm.com>

This patch fixes the sie exit on interrupts. The low level
interrupt handler returns to the PSW address in pt_regs and not
to the PSW address in the lowcore.
Without this fix a cpu bound guest might never leave guest state
since the host interrupt handler would blindly return to the
SIE instruction, even on need_resched and friends.

Cc: stable@kernel.org
Signed-off-by: Carsten Otte <cotte@de.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
History 2011-04-20 10:15:44 +02:00
..
appldata [S390] appldata: fix dev_get_stats 64 bit conversion 2010-08-13 10:06:55 +02:00
boot Merge branch 'trivial' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild-2.6 2011-03-20 18:14:55 -07:00
crypto [S390] prng: prevent access beyond end of stack 2011-04-20 10:15:43 +02:00
hypfs [S390] hypfs: Move buffer allocation from open to read 2011-01-05 12:47:27 +01:00
include/asm Fix common misspellings 2011-03-31 11:26:23 -03:00
kernel Merge branch 'for-linus' of git://git390.marist.edu/pub/scm/linux-2.6 2011-04-08 07:36:14 -07:00
kvm [S390] kvm-390: Let kernel exit SIE instruction on work 2011-04-20 10:15:44 +02:00
lib futex: Sanitize futex ops argument types 2011-03-11 12:23:31 +01:00
math-emu s390: change to new flag variable 2011-03-17 14:02:57 +01:00
mm [S390] pfault: fix token handling 2011-04-20 10:15:44 +02:00
oprofile [S390] oprofile s390: prevent stack corruption 2011-04-04 09:43:32 +02:00
defconfig [S390] Update default configuration 2011-01-12 09:55:24 +01:00
Kbuild [S390] standardize Kbuild rules 2010-10-25 16:10:14 +02:00
Kconfig oprofile, s390: Cleanups 2011-03-16 14:30:40 +01:00
Kconfig.debug [S390] Write protect module text and RO data 2011-03-15 17:08:23 +01:00
Makefile [S390] remove redundant stack check option 2011-03-15 17:08:22 +01:00