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722c05f219
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Avi Kivity 722c05f219 KVM: MMU: Fix potential race setting upper shadow ptes on nonpae hosts 
The direct mapped shadow code (used for real mode and two dimensional paging)
sets upper-level ptes using direct assignment rather than calling
set_shadow_pte().  A nonpae host will split this into two writes, which opens
up a race if another vcpu accesses the same memory area.

Fix by calling set_shadow_pte() instead of assigning directly.

Noticed by Izik Eidus.

Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-07-20 12:42:40 +03:00
..
alpha Merge branch 'generic-ipi' into generic-ipi-for-linus 2008-07-15 21:55:59 +02:00
arm Merge branch 'generic-ipi' into generic-ipi-for-linus 2008-07-15 21:55:59 +02:00
avr32 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/drzeus/mmc 2008-07-16 15:17:52 -07:00
blackfin Merge commit 'v2.6.26' into bkl-removal 2008-07-14 15:29:34 -06:00
cris Merge branch 'generic-ipi' into generic-ipi-for-linus 2008-07-15 21:55:59 +02:00
frv PCI: remove unused arch pcibios_update_resource() functions 2008-06-27 13:14:01 -07:00
h8300
ia64 KVM: MMU: nuke shadowed pgtable pages and ptes on memslot destruction 2008-07-20 12:42:40 +03:00
m32r smp_call_function: get rid of the unused nonatomic/retry argument 2008-06-26 11:24:35 +02:00
m68k Merge commit 'v2.6.26' into bkl-removal 2008-07-14 15:29:34 -06:00
m68knommu Merge branch 'linux-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6 2008-07-16 17:25:46 -07:00
mips Merge branch 'linux-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6 2008-07-16 17:25:46 -07:00
mn10300 mn10300: provide __ucmpdi2() for MN10300 2008-07-04 10:40:07 -07:00
parisc Merge branch 'generic-ipi' into generic-ipi-for-linus 2008-07-15 21:55:59 +02:00
powerpc KVM: MMU: nuke shadowed pgtable pages and ptes on memslot destruction 2008-07-20 12:42:40 +03:00
s390 KVM: MMU: nuke shadowed pgtable pages and ptes on memslot destruction 2008-07-20 12:42:40 +03:00
sh Merge branch 'linux-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6 2008-07-16 17:25:46 -07:00
sparc Merge commit 'v2.6.26' into bkl-removal 2008-07-14 15:29:34 -06:00
sparc64 Merge branch 'linux-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6 2008-07-16 17:25:46 -07:00
um Merge branch 'generic-ipi' into generic-ipi-for-linus 2008-07-15 21:55:59 +02:00
v850
x86 KVM: MMU: Fix potential race setting upper shadow ptes on nonpae hosts 2008-07-20 12:42:40 +03:00
xtensa
.gitignore
Kconfig Add generic helpers for arch IPI function calls 2008-06-26 11:21:34 +02:00