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| author | Xiao Guangrong | 2010-09-27 12:07:07 +0200 |
|---|---|---|
| committer | Avi Kivity | 2010-10-24 10:53:13 +0200 |
| commit | c42fffe3a3aa8c62b8028fff32d18156f5325c3b (patch) | |
| tree | 6d711887197d665296c27c9359695a76ef0e6734 /arch/x86/kvm/mmu.c | |
| parent | KVM: MMU: audit: fix vcpu's spte walking (diff) | |
| download | kernel-qcow2-linux-c42fffe3a3aa8c62b8028fff32d18156f5325c3b.tar.gz kernel-qcow2-linux-c42fffe3a3aa8c62b8028fff32d18156f5325c3b.tar.xz kernel-qcow2-linux-c42fffe3a3aa8c62b8028fff32d18156f5325c3b.zip | |
KVM: MMU: audit: unregister audit tracepoints before module unloaded
fix:
Call Trace:
[<ffffffffa01e46ba>] ? kvm_mmu_pte_write+0x229/0x911 [kvm]
[<ffffffffa01c6ba9>] ? gfn_to_memslot+0x39/0xa0 [kvm]
[<ffffffffa01c6c26>] ? mark_page_dirty+0x16/0x2e [kvm]
[<ffffffffa01c6d6f>] ? kvm_write_guest_page+0x67/0x7f [kvm]
[<ffffffff81066fbd>] ? local_clock+0x2a/0x3b
[<ffffffffa01d52ce>] emulator_write_phys+0x46/0x54 [kvm]
......
Code: Bad RIP value.
RIP [<ffffffffa0172056>] 0xffffffffa0172056
RSP <ffff880134f69a70>
CR2: ffffffffa0172056
Signed-off-by: Xiao Guangrong <xiaoguangrong@cn.fujitsu.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
Diffstat (limited to 'arch/x86/kvm/mmu.c')
| -rw-r--r-- | arch/x86/kvm/mmu.c | 21 |
1 files changed, 12 insertions, 9 deletions
diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c index 88203fa4ef05..afde64ba118d 100644 --- a/arch/x86/kvm/mmu.c +++ b/arch/x86/kvm/mmu.c @@ -3355,15 +3355,6 @@ int kvm_mmu_setup(struct kvm_vcpu *vcpu) return init_kvm_mmu(vcpu); } -void kvm_mmu_destroy(struct kvm_vcpu *vcpu) -{ - ASSERT(vcpu); - - destroy_kvm_mmu(vcpu); - free_mmu_pages(vcpu); - mmu_free_memory_caches(vcpu); -} - void kvm_mmu_slot_remove_write_access(struct kvm *kvm, int slot) { struct kvm_mmu_page *sp; @@ -3662,4 +3653,16 @@ EXPORT_SYMBOL_GPL(kvm_mmu_get_spte_hierarchy); #ifdef CONFIG_KVM_MMU_AUDIT #include "mmu_audit.c" +#else +static void mmu_audit_disable(void) { } #endif + +void kvm_mmu_destroy(struct kvm_vcpu *vcpu) +{ + ASSERT(vcpu); + + destroy_kvm_mmu(vcpu); + free_mmu_pages(vcpu); + mmu_free_memory_caches(vcpu); + mmu_audit_disable(); +} |