kvm_handle_hva relies on mmu_lock protection to safely access the memslot structures. Signed-off-by: Marcelo Tosatti <mtosatti@xxxxxxxxxx> Index: kvm-pending/virt/kvm/kvm_main.c =================================================================== --- kvm-pending.orig/virt/kvm/kvm_main.c +++ kvm-pending/virt/kvm/kvm_main.c @@ -1199,8 +1199,10 @@ int __kvm_set_memory_region(struct kvm * kvm_free_physmem_slot(&old, npages ? &new : NULL); /* Slot deletion case: we have to update the current slot */ + spin_lock(&kvm->mmu_lock); if (!npages) *memslot = old; + spin_unlock(&kvm->mmu_lock); #ifdef CONFIG_DMAR /* map the pages in iommu page table */ r = kvm_iommu_map_pages(kvm, base_gfn, npages); -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
