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Diffstat (limited to 'Documentation/virt/kvm/api.rst')
| -rw-r--r-- | Documentation/virt/kvm/api.rst | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/Documentation/virt/kvm/api.rst b/Documentation/virt/kvm/api.rst index a5f9ee92f43e..e3003a241d5b 100644 --- a/Documentation/virt/kvm/api.rst +++ b/Documentation/virt/kvm/api.rst @@ -8414,6 +8414,12 @@ When this capability is enabled all memory in memslots must be mapped as attempts to create a memslot with an invalid mmap will result in an -EINVAL return. +``guest_memfd``, even though it is an anonymous file, is not supported with MTE. +Attempting to create a memslot backed by ``guest_memfd`` when the MTE capability +is enabled, or attempting to enable the MTE capability after +``guest_memfd``-backed memslots have been created, will result in an -EINVAL +return. + When enabled the VMM may make use of the ``KVM_ARM_MTE_COPY_TAGS`` ioctl to perform a bulk copy of tags to/from the guest. |