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linux/arch/x86/kvm
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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
..
i8254.c KVM: only abort guest entry if timer count goes from 0->1 2008-07-20 12:42:32 +03:00
i8254.h KVM: Add reset support for in kernel PIT 2008-04-27 12:00:23 +03:00
i8259.c KVM: check injected pic irq within valid pic irqs 2008-07-20 12:42:39 +03:00
irq.c KVM: migrate PIT timer 2008-06-06 21:25:51 +03:00
irq.h KVM: check injected pic irq within valid pic irqs 2008-07-20 12:42:39 +03:00
Kconfig KVM: Add kvm trace userspace interface 2008-04-27 12:01:22 +03:00
kvm_svm.h KVM: SVM: allocate the MSR permission map per VCPU 2008-04-27 11:53:21 +03:00
lapic.c KVM: only abort guest entry if timer count goes from 0->1 2008-07-20 12:42:32 +03:00
lapic.h KVM: add statics were possible, function definition in lapic.h 2008-07-20 12:40:46 +03:00
Makefile KVM: Add coalesced MMIO support (x86 part) 2008-07-20 12:42:31 +03:00
mmu.c KVM: MMU: Fix potential race setting upper shadow ptes on nonpae hosts 2008-07-20 12:42:40 +03:00
mmu.h KVM: MMU: Fix false flooding when a pte points to page table 2008-07-20 12:40:50 +03:00
paging_tmpl.h KVM: MMU: Optimize prefetch_page() 2008-07-20 12:42:28 +03:00
svm.c KVM: Prefix some x86 low level function with kvm_, to avoid namespace issues 2008-07-20 12:42:39 +03:00
svm.h KVM: x86: hardware task switching support 2008-04-27 12:00:39 +03:00
tss.h KVM: x86: hardware task switching support 2008-04-27 12:00:39 +03:00
vmx.c KVM: Prefix some x86 low level function with kvm_, to avoid namespace issues 2008-07-20 12:42:39 +03:00
vmx.h KVM: VMX: Enable NMI with in-kernel irqchip 2008-07-20 12:42:26 +03:00
x86.c KVM: MMU: nuke shadowed pgtable pages and ptes on memslot destruction 2008-07-20 12:42:40 +03:00
x86_emulate.c KVM: x86 emulator: emulate clflush 2008-07-20 12:42:40 +03:00