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_emulate.c

KVM: x86 emulator: emulate clflush

2008-07-20 12:42:40 +03:00

x86.c

KVM: MMU: nuke shadowed pgtable pages and ptes on memslot destruction

2008-07-20 12:42:40 +03:00