KVM: Convert vm lock to a mutex
This allows the kvm mmu to perform sleepy operations, such as memory
allocation.
Signed-off-by: Shaohua Li <shaohua.li@intel.com>
Signed-off-by: Avi Kivity <avi@qumranet.com>
diff --git a/drivers/kvm/svm.c b/drivers/kvm/svm.c
index 3997bbd..9a840e0 100644
--- a/drivers/kvm/svm.c
+++ b/drivers/kvm/svm.c
@@ -941,21 +941,21 @@
if (is_external_interrupt(exit_int_info))
push_irq(vcpu, exit_int_info & SVM_EVTINJ_VEC_MASK);
- spin_lock(&vcpu->kvm->lock);
+ mutex_lock(&vcpu->kvm->lock);
fault_address = svm->vmcb->control.exit_info_2;
error_code = svm->vmcb->control.exit_info_1;
r = kvm_mmu_page_fault(vcpu, fault_address, error_code);
if (r < 0) {
- spin_unlock(&vcpu->kvm->lock);
+ mutex_unlock(&vcpu->kvm->lock);
return r;
}
if (!r) {
- spin_unlock(&vcpu->kvm->lock);
+ mutex_unlock(&vcpu->kvm->lock);
return 1;
}
er = emulate_instruction(vcpu, kvm_run, fault_address, error_code);
- spin_unlock(&vcpu->kvm->lock);
+ mutex_unlock(&vcpu->kvm->lock);
switch (er) {
case EMULATE_DONE: