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linux-2.6/drivers/kvm
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Avi Kivity 399badf315 [PATCH] KVM: Prevent stale bits in cr0 and cr4 
Hardware virtualization implementations allow the guests to freely change some
of the bits in cr0 and cr4, but trap when changing the other bits.  This is
useful to avoid excessive exits due to changing, for example, the ts flag.

It also means the kvm's copy of cr0 and cr4 may be stale with respect to these
bits.  most of the time this doesn't matter as these bits are not very
interesting.  Other times, however (for example when returning cr0 to
userspace), they are, so get the fresh contents of these bits from the guest
by means of a new arch operation.

Signed-off-by: Avi Kivity <avi@qumranet.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
 		2007-01-05 23:55:23 -08:00
..
Kconfig [PATCH] KVM: Put KVM in a new Virtualization menu 2006-12-13 09:05:46 -08:00
Makefile [PATCH] kvm: userspace interface 2006-12-10 09:57:22 -08:00
kvm.h [PATCH] KVM: Prevent stale bits in cr0 and cr4 2007-01-05 23:55:23 -08:00
kvm_main.c [PATCH] KVM: Prevent stale bits in cr0 and cr4 2007-01-05 23:55:23 -08:00
kvm_svm.h [PATCH] KVM: Replace __x86_64__ with CONFIG_X86_64 2006-12-13 09:05:46 -08:00
kvm_vmx.h [PATCH] KVM: Replace __x86_64__ with CONFIG_X86_64 2006-12-13 09:05:46 -08:00
mmu.c [PATCH] kvm: fix GFP_KERNEL allocation in atomic section in kvm_dev_ioctl_create_vcpu() 2006-12-30 10:56:44 -08:00
paging_tmpl.h [PATCH] KVM: Simplify is_long_mode() 2006-12-30 10:56:44 -08:00
segment_descriptor.h [PATCH] kvm: userspace interface 2006-12-10 09:57:22 -08:00
svm.c [PATCH] KVM: Prevent stale bits in cr0 and cr4 2007-01-05 23:55:23 -08:00
svm.h [PATCH] kvm: userspace interface 2006-12-10 09:57:22 -08:00
vmx.c [PATCH] KVM: Prevent stale bits in cr0 and cr4 2007-01-05 23:55:23 -08:00
vmx.h [PATCH] KVM: Rename some msrs 2006-12-30 10:56:44 -08:00
x86_emulate.c [PATCH] KVM: Replace __x86_64__ with CONFIG_X86_64 2006-12-13 09:05:46 -08:00
x86_emulate.h [PATCH] KVM: Replace __x86_64__ with CONFIG_X86_64 2006-12-13 09:05:46 -08:00