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KVM: fix cleanup_srcu_struct on vm destruction

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cleanup_srcu_struct on VM destruction remains broken:

BUG: unable to handle kernel paging request at ffffffffffffffff
IP: [<ffffffff802533d2>] srcu_read_lock+0x16/0x21
RIP: 0010:[<ffffffff802533d2>]  [<ffffffff802533d2>] srcu_read_lock+0x16/0x21
Call Trace:
 [<ffffffffa05354c4>] kvm_arch_vcpu_uninit+0x1b/0x48 [kvm]
 [<ffffffffa05339c6>] kvm_vcpu_uninit+0x9/0x15 [kvm]
 [<ffffffffa0569f7d>] vmx_free_vcpu+0x7f/0x8f [kvm_intel]
 [<ffffffffa05357b5>] kvm_arch_destroy_vm+0x78/0x111 [kvm]
 [<ffffffffa053315b>] kvm_put_kvm+0xd4/0xfe [kvm]

Move it to kvm_arch_destroy_vm.

Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Reported-by: Jan Kiszka <jan.kiszka@siemens.com>
This commit is contained in:
Marcelo Tosatti 2010-01-19 12:45:23 -02:00
parent ccd469362e
commit 6474920477
5 changed files with 4 additions and 1 deletions
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1
arch/ia64/kvm/kvm-ia64.c
View file

@ -1404,6 +1404,7 @@ void kvm_arch_destroy_vm(struct kvm *kvm)
kfree(kvm->arch.vioapic);
kvm_release_vm_pages(kvm);
kvm_free_physmem(kvm);
cleanup_srcu_struct(&kvm->srcu);
free_kvm(kvm);
}

1
arch/powerpc/kvm/powerpc.c
View file

@ -137,6 +137,7 @@ void kvm_arch_destroy_vm(struct kvm *kvm)
{
kvmppc_free_vcpus(kvm);
kvm_free_physmem(kvm);
cleanup_srcu_struct(&kvm->srcu);
kfree(kvm);
}

1
arch/s390/kvm/kvm-s390.c
View file

@ -242,6 +242,7 @@ void kvm_arch_destroy_vm(struct kvm *kvm)
kvm_free_physmem(kvm);
free_page((unsigned long)(kvm->arch.sca));
debug_unregister(kvm->arch.dbf);
cleanup_srcu_struct(&kvm->srcu);
kfree(kvm);
}

1
arch/x86/kvm/x86.c
View file

@ -5547,6 +5547,7 @@ void kvm_arch_destroy_vm(struct kvm *kvm)
put_page(kvm->arch.apic_access_page);
if (kvm->arch.ept_identity_pagetable)
put_page(kvm->arch.ept_identity_pagetable);
cleanup_srcu_struct(&kvm->srcu);
kfree(kvm->arch.aliases);
kfree(kvm);
}

1
virt/kvm/kvm_main.c
View file

@ -506,7 +506,6 @@ static void kvm_destroy_vm(struct kvm *kvm)
#else
kvm_arch_flush_shadow(kvm);
#endif
cleanup_srcu_struct(&kvm->srcu);
kvm_arch_destroy_vm(kvm);
hardware_disable_all();
mmdrop(mm);