diff options
| -rw-r--r-- | arch/loongarch/kvm/mmu.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/arch/loongarch/kvm/mmu.c b/arch/loongarch/kvm/mmu.c index 2c08402bfd3e..3e9a0b285fd2 100644 --- a/arch/loongarch/kvm/mmu.c +++ b/arch/loongarch/kvm/mmu.c @@ -383,6 +383,16 @@ int kvm_arch_prepare_memory_region(struct kvm *kvm, const struct kvm_memory_slot hva_t hva_start; size_t size, gpa_offset, hva_offset; + /* + * The generic code allocates a fresh, zeroed memslot for every change, + * so the arch flags computed below must be carried over when only the + * userspace flags change, e.g. when dirty logging is toggled. + */ + if (change == KVM_MR_FLAGS_ONLY) { + new->arch = old->arch; + return 0; + } + if ((change != KVM_MR_MOVE) && (change != KVM_MR_CREATE)) return 0; /* |