diff options
| -rw-r--r-- | arch/arm64/kvm/mmu.c | 7 |
1 files changed, 2 insertions, 5 deletions
diff --git a/arch/arm64/kvm/mmu.c b/arch/arm64/kvm/mmu.c index 1c78864767c5..006fdb017c54 100644 --- a/arch/arm64/kvm/mmu.c +++ b/arch/arm64/kvm/mmu.c @@ -1426,11 +1426,8 @@ static int get_vma_page_shift(struct vm_area_struct *vma, unsigned long hva) * able to see the page's tags and therefore they must be initialised first. If * PG_mte_tagged is set, tags have already been initialised. * - * The race in the test/set of the PG_mte_tagged flag is handled by: - * - preventing VM_SHARED mappings in a memslot with MTE preventing two VMs - * racing to santise the same page - * - mmap_lock protects between a VM faulting a page in and the VMM performing - * an mprotect() to add VM_MTE + * Must be called with kvm->mmu_lock held to ensure the memory remains mapped + * while the tags are zeroed. */ static void sanitise_mte_tags(struct kvm *kvm, kvm_pfn_t pfn, unsigned long size) |