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e724f080f5
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Paul Mackerras e724f080f5 KVM: PPC: Book3S HV: Fix register usage when loading/saving VRSAVE 
Commit 595e4f7e69 ("KVM: PPC: Book3S HV: Use load/store_fp_state
functions in HV guest entry/exit") changed the register usage in
kvmppc_save_fp() and kvmppc_load_fp() but omitted changing the
instructions that load and save VRSAVE.  The result is that the
VRSAVE value was loaded from a constant address, and saved to a
location past the end of the vcpu struct, causing host kernel
memory corruption and various kinds of host kernel crashes.

This fixes the problem by using register r31, which contains the
vcpu pointer, instead of r3 and r4.

Signed-off-by: Paul Mackerras <paulus@samba.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2014-03-13 10:47:01 +01:00
..
alpha PCI changes for the v3.14 merge window: 2014-01-22 16:39:28 -08:00
arc arch: Re-sort some Kbuild files to hopefully help avoid some conflicts 2014-01-13 21:56:54 -08:00
arm Features: 2014-01-22 22:00:18 -08:00
arm64 First round of KVM updates for 3.14; PPC parts will come next week. 2014-01-22 21:40:43 -08:00
avr32 arch: Clean up asm/barrier.h implementations using asm-generic/barrier.h 2014-01-12 10:37:15 +01:00
blackfin arch: Clean up asm/barrier.h implementations using asm-generic/barrier.h 2014-01-12 10:37:15 +01:00
c6x Merge branch 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2013-11-19 10:40:00 -08:00
cris arch: Re-sort some Kbuild files to hopefully help avoid some conflicts 2014-01-13 21:56:54 -08:00
frv arch: Clean up asm/barrier.h implementations using asm-generic/barrier.h 2014-01-12 10:37:15 +01:00
hexagon arch: Re-sort some Kbuild files to hopefully help avoid some conflicts 2014-01-13 21:56:54 -08:00
ia64 First round of KVM updates for 3.14; PPC parts will come next week. 2014-01-22 21:40:43 -08:00
m32r arch: Clean up asm/barrier.h implementations using asm-generic/barrier.h 2014-01-12 10:37:15 +01:00
m68k Merge branch 'sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2014-01-20 10:42:08 -08:00
metag memblock: make memblock_set_node() support different memblock_type 2014-01-21 16:19:44 -08:00
microblaze memblock: make memblock_set_node() support different memblock_type 2014-01-21 16:19:44 -08:00
mips Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2014-01-22 21:21:55 -08:00
mn10300 arch: Re-sort some Kbuild files to hopefully help avoid some conflicts 2014-01-13 21:56:54 -08:00
openrisc OpenRISC updates for 3.13 2013-11-15 14:26:38 -08:00
parisc PCI changes for the v3.14 merge window: 2014-01-22 16:39:28 -08:00
powerpc KVM: PPC: Book3S HV: Fix register usage when loading/saving VRSAVE 2014-03-13 10:47:01 +01:00
s390 This deals with 2 guest features that need enablement in the kvm host: 2014-01-23 11:38:13 +01:00
score score: remove "select HAVE_GENERIC_HARDIRQS" again 2014-01-21 16:19:41 -08:00
sh memblock: make memblock_set_node() support different memblock_type 2014-01-21 16:19:44 -08:00
sparc PCI changes for the v3.14 merge window: 2014-01-22 16:39:28 -08:00
tile arch: Clean up asm/barrier.h implementations using asm-generic/barrier.h 2014-01-12 10:37:15 +01:00
um um: Build always with -mcmodel=large on 64bit 2013-12-01 13:06:51 +01:00
unicore32 mm, show_mem: remove SHOW_MEM_FILTER_PAGE_COUNT 2014-01-21 16:19:44 -08:00
x86 x86, kvm: correctly access the KVM_CPUID_FEATURES leaf at 0x40000101 2014-01-29 18:11:55 +01:00
xtensa GPIO tree bulk changes for v3.14 2014-01-21 10:09:12 -08:00
.gitignore
Kconfig stackprotector: Introduce CONFIG_CC_STACKPROTECTOR_STRONG 2013-12-20 09:38:40 +01:00