Kevin Pedretti b33ac88b4c KVM: Fix local apic timer divide by zero ...

kvm_lapic_reset() was initializing apic->timer.divide_count to 0,
which could potentially lead to a divide by zero error in
apic_get_tmcct().  Any guest that reads the APIC's CCR (current count)
register before setting DCR (divide configuration) would trigger a divide
by zero exception in the host kernel, leading to a host-OS crash.

This patch results in apic->timer.divide_count being initialized to
2 at reset, eliminating the bug (DCR=0 at reset, meaning divide by 2).

Signed-off-by: Kevin Pedretti <kevin.pedretti@gmail.com>
Signed-off-by: Avi Kivity <avi@qumranet.com>

2007-10-22 12:03:29 +02:00

..

i8259.c

KVM: Add get/set irqchip ioctls for in-kernel PIC live migration support

2007-10-13 10:18:25 +02:00

ioapic.c

KVM: In-kernel I/O APIC model

2007-10-13 10:18:25 +02:00

irq.c

KVM: deliver PIC interrupt only to vcpu0

2007-10-13 10:18:26 +02:00

irq.h

KVM: enable in-kernel APIC INIT/SIPI handling

2007-10-13 10:18:26 +02:00

Kconfig

KVM: Use the scheduler preemption notifiers to make kvm preemptible

2007-10-13 10:18:20 +02:00

kvm_main.c

KVM: Move kvm_guest_exit() after local_irq_enable()

2007-10-22 12:03:29 +02:00

kvm_svm.h

KVM: Dynamically allocate vcpus

2007-10-13 10:18:20 +02:00

kvm.h

sched: guest CPU accounting: maintain guest state in KVM

2007-10-15 17:00:19 +02:00

lapic.c

KVM: Fix local apic timer divide by zero

2007-10-22 12:03:29 +02:00

Makefile

KVM: In-kernel I/O APIC model

2007-10-13 10:18:25 +02:00

mmu.c

KVM: VMX: Reset mmu context when entering real mode

2007-10-22 12:03:28 +02:00

paging_tmpl.h

KVM: Rename kvm_arch_ops to kvm_x86_ops

2007-10-13 10:18:27 +02:00

segment_descriptor.h

[PATCH] kvm: userspace interface

2006-12-10 09:57:22 -08:00

svm.c

KVM: Improve emulation failure reporting

2007-10-13 10:18:28 +02:00

svm.h

KVM: SVM: Reliably detect if SVM was disabled by BIOS

2007-07-16 12:05:49 +03:00

vmx.c

KVM: VMX: Force vm86 mode if setting flags during real mode

2007-10-22 12:03:29 +02:00

vmx.h

KVM: VMX: Use shadow TPR/cr8 for 64-bits guests

2007-10-13 10:18:26 +02:00

x86_emulate.c

KVM: x86 emulator: fix access registers for instructions with ModR/M byte and Mod = 3

2007-10-22 12:03:29 +02:00

x86_emulate.h

KVM: Change the emulator_{read,write,cmpxchg}_* functions to take a vcpu

2007-10-13 10:18:21 +02:00