1
linux/drivers/kvm
Yoshimi Ichiyanagi 09db28b8a3 [PATCH] KVM: Initialize kvm_arch_ops on unload
The latest version of kvm doesn't initialize kvm_arch_ops in kvm_init(), which
causes an error with the following sequence.

1. Load the supported arch's module.
2. Load the unsupported arch's module.$B!!(B(loading error)
3. Unload the unsupported arch's module.

You'll get the following error message after step 3.  "BUG: unable to handle
to handle kernel paging request at virtual address xxxxxxxx"

The problem here is that the unsupported arch's module overwrites kvm_arch_ops
of the supported arch's module at step 2.

This patch initializes kvm_arch_ops upon loading architecture specific kvm
module, and prevents overwriting kvm_arch_ops when kvm_arch_ops is already set
correctly.

Signed-off-by: Avi Kivity <avi@qumranet.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-12-30 10:56:44 -08:00
..
Kconfig [PATCH] KVM: Put KVM in a new Virtualization menu 2006-12-13 09:05:46 -08:00
kvm_main.c [PATCH] KVM: Initialize kvm_arch_ops on unload 2006-12-30 10:56:44 -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
kvm.h [PATCH] KVM: Simplify is_long_mode() 2006-12-30 10:56:44 -08:00
Makefile [PATCH] kvm: userspace interface 2006-12-10 09:57:22 -08:00
mmu.c [PATCH] KVM: Simplify is_long_mode() 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: Simplify is_long_mode() 2006-12-30 10:56:44 -08:00
svm.h [PATCH] kvm: userspace interface 2006-12-10 09:57:22 -08:00
vmx.c [PATCH] KVM: Simplify is_long_mode() 2006-12-30 10:56:44 -08:00
vmx.h [PATCH] kvm: userspace interface 2006-12-10 09:57:22 -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