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SubjectRe: [PATCH, RFC 47/62] mm: Restrict MKTME memory encryption to anonymous VMAs
On Wed, May 08, 2019 at 05:44:07PM +0300, Kirill A. Shutemov wrote:
> From: Alison Schofield <>
> Memory encryption is only supported for mappings that are ANONYMOUS.
> Test the VMA's in an encrypt_mprotect() request to make sure they all
> meet that requirement before encrypting any.
> The encrypt_mprotect syscall will return -EINVAL and will not encrypt
> any VMA's if this check fails.
> Signed-off-by: Alison Schofield <>
> Signed-off-by: Kirill A. Shutemov <>

This should be folded back into the initial implemention, methinks.

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