From c42fffe3a3aa8c62b8028fff32d18156f5325c3b Mon Sep 17 00:00:00 2001 From: Xiao Guangrong Date: Mon, 27 Sep 2010 18:07:07 +0800 Subject: KVM: MMU: audit: unregister audit tracepoints before module unloaded fix: Call Trace: [] ? kvm_mmu_pte_write+0x229/0x911 [kvm] [] ? gfn_to_memslot+0x39/0xa0 [kvm] [] ? mark_page_dirty+0x16/0x2e [kvm] [] ? kvm_write_guest_page+0x67/0x7f [kvm] [] ? local_clock+0x2a/0x3b [] emulator_write_phys+0x46/0x54 [kvm] ...... Code: Bad RIP value. RIP [] 0xffffffffa0172056 RSP CR2: ffffffffa0172056 Signed-off-by: Xiao Guangrong Signed-off-by: Avi Kivity --- arch/x86/kvm/mmu.c | 21 ++++++++++++--------- 1 file changed, 12 insertions(+), 9 deletions(-) (limited to 'arch/x86/kvm/mmu.c') 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(); +} -- cgit v1.2.3