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    Subject[RFC Part1 PATCH v3 07/17] x86/mm: Include SEV for encryption memory attribute changes
    Date
    From: Tom Lendacky <thomas.lendacky@amd.com>

    The current code checks only for sme_active() when determining whether
    to perform the encryption attribute change. Include sev_active() in this
    check so that memory attribute changes can occur under SME and SEV.

    Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com>
    Signed-off-by: Brijesh Singh <brijesh.singh@amd.com>
    ---
    arch/x86/mm/pageattr.c | 4 ++--
    1 file changed, 2 insertions(+), 2 deletions(-)

    diff --git a/arch/x86/mm/pageattr.c b/arch/x86/mm/pageattr.c
    index dfb7d65..b726b23 100644
    --- a/arch/x86/mm/pageattr.c
    +++ b/arch/x86/mm/pageattr.c
    @@ -1781,8 +1781,8 @@ static int __set_memory_enc_dec(unsigned long addr, int numpages, bool enc)
    unsigned long start;
    int ret;

    - /* Nothing to do if the SME is not active */
    - if (!sme_active())
    + /* Nothing to do if SME and SEV are not active */
    + if (!sme_active() && !sev_active())
    return 0;

    /* Should not be working on unaligned addresses */
    --
    2.9.4
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