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SubjectRe: [RFC, PATCH 21/22] x86/mm: Introduce page_keyid() and page_encrypted()
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On 03/05/2018 08:26 AM, Kirill A. Shutemov wrote:
> +static inline bool page_encrypted(struct page *page)
> +{
> + /* All pages with non-zero KeyID are encrypted */
> + return page_keyid(page) != 0;
> +}

Is this true? I thought there was a KEYID_NO_ENCRYPT "Do not encrypt
memory when this KeyID is in use." Is that really only limited to key 0.

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