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e1e8a9624f
kernel_optimize_test/arch
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Janosch Frank e1e8a9624f KVM: s390: Disable dirty log retrieval for UCONTROL guests 
User controlled KVM guests do not support the dirty log, as they have
no single gmap that we can check for changes.

As they have no single gmap, kvm->arch.gmap is NULL and all further
referencing to it for dirty checking will result in a NULL
dereference.

Let's return -EINVAL if a caller tries to sync dirty logs for a
UCONTROL guest.

Fixes: 15f36eb ("KVM: s390: Add proper dirty bitmap support to S390 kvm.")
Cc: <stable@vger.kernel.org> # 3.16+

Signed-off-by: Janosch Frank <frankja@linux.vnet.ibm.com>
Reported-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
2017-02-06 11:20:12 +01:00
..
alpha clocksource: Use a plain u64 instead of cycle_t 2016-12-25 11:04:12 +01:00
arc 2nd round of ARC udpates for 4.10rc1 2016-12-23 10:22:47 -08:00
arm This pull request contains fixes for the following issues 2017-01-04 16:43:00 +01:00
arm64 arm64: assembler: make adr_l work in modules under KASLR 2017-01-12 18:10:52 +00:00
avr32 clocksource: Use a plain u64 instead of cycle_t 2016-12-25 11:04:12 +01:00
blackfin Merge branch 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2016-12-25 14:30:04 -08:00
c6x clocksource: Use a plain u64 instead of cycle_t 2016-12-25 11:04:12 +01:00
cris Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
frv Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
h8300 Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
hexagon clocksource: Use a plain u64 instead of cycle_t 2016-12-25 11:04:12 +01:00
ia64 clocksource: Use a plain u64 instead of cycle_t 2016-12-25 11:04:12 +01:00
m32r Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
m68k clocksource: Use a plain u64 instead of cycle_t 2016-12-25 11:04:12 +01:00
metag Merge branch 'smp-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2016-12-25 14:05:56 -08:00
microblaze clocksource: Use a plain u64 instead of cycle_t 2016-12-25 11:04:12 +01:00
mips KVM fixes for v4.10-rc3 2017-01-06 15:27:17 -08:00
mn10300 clocksource: Use a plain u64 instead of cycle_t 2016-12-25 11:04:12 +01:00
nios2 clocksource: Use a plain u64 instead of cycle_t 2016-12-25 11:04:12 +01:00
openrisc openrisc: Add _text symbol to fix ksym build error 2017-01-02 10:35:11 +09:00
parisc parisc: Add line-break when printing segfault info 2017-01-02 18:07:25 +01:00
powerpc powerpc: Fix build warning on 32-bit PPC 2016-12-25 16:12:20 -08:00
s390 KVM: s390: Disable dirty log retrieval for UCONTROL guests 2017-02-06 11:20:12 +01:00
score Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
sh Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
sparc clocksource: Use a plain u64 instead of cycle_t 2016-12-25 11:04:12 +01:00
tile Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
um clocksource: Use a plain u64 instead of cycle_t 2016-12-25 11:04:12 +01:00
unicore32 clocksource: Use a plain u64 instead of cycle_t 2016-12-25 11:04:12 +01:00
x86 Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2017-01-15 12:03:11 -08:00
xtensa Merge branch 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2016-12-25 14:30:04 -08:00
.gitignore
Kconfig powerpc: ima: get the kexec buffer passed by the previous kernel 2016-12-20 09:48:40 -08:00