WSL2-Linux-Kernel/drivers/kvm
Avi Kivity 6b8d0f9b18 KVM: Fix off-by-one when writing to a nonpae guest pde
Nonpae guest pdes are shadowed by two pae ptes, so we double the offset
twice: once to account for the pte size difference, and once because we
need to shadow pdes for a single guest pde.

But when writing to the upper guest pde we also need to truncate the
lower bits, otherwise the multiply shifts these bits into the pde index
and causes an access to the wrong shadow pde.  If we're at the end of the
page (accessing the very last guest pde) we can even overflow into the
next host page and oops.

Signed-off-by: Avi Kivity <avi@qumranet.com>
2007-04-19 18:39:26 +03:00
..
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 KVM: Per-vcpu inodes 2007-03-04 11:12:42 +02:00
kvm_main.c KVM: Unset kvm_arch_ops if arch module loading failed 2007-03-18 10:49:06 +02:00
kvm_svm.h KVM: Use ARRAY_SIZE macro instead of manual calculation. 2007-03-04 11:12:39 +02:00
kvm_vmx.h [PATCH] KVM: Replace __x86_64__ with CONFIG_X86_64 2006-12-13 09:05:46 -08:00
mmu.c KVM: Fix off-by-one when writing to a nonpae guest pde 2007-04-19 18:39:26 +03:00
paging_tmpl.h KVM: Cosmetics 2007-03-04 11:12:39 +02:00
segment_descriptor.h [PATCH] kvm: userspace interface 2006-12-10 09:57:22 -08:00
svm.c KVM: Per-vcpu inodes 2007-03-04 11:12:42 +02:00
svm.h [PATCH] kvm: userspace interface 2006-12-10 09:57:22 -08:00
vmx.c KVM: always reload segment selectors 2007-03-27 17:55:48 +02:00
vmx.h [PATCH] kvm: vmx: handle triple faults by returning EXIT_REASON_SHUTDOWN to userspace 2007-02-12 09:48:40 -08:00
x86_emulate.c [PATCH] KVM: x86 emulator: fix bit string instructions 2007-01-23 07:52:06 -08:00
x86_emulate.h [PATCH] KVM: Replace __x86_64__ with CONFIG_X86_64 2006-12-13 09:05:46 -08:00