Messages in this thread Patch in this message | | | From | Brijesh Singh <> | Subject | [Part1 PATCH v4 06/17] x86/mm: Include SEV for encryption memory attribute changes | Date | Sat, 16 Sep 2017 07:34:07 -0500 |
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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.
Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Ingo Molnar <mingo@redhat.com> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: Borislav Petkov <bp@suse.de> Cc: Andy Lutomirski <luto@kernel.org> Cc: John Ogness <john.ogness@linutronix.de> Cc: Matt Fleming <matt@codeblueprint.co.uk> Cc: Laura Abbott <labbott@redhat.com> Cc: Dan Williams <dan.j.williams@intel.com> Cc: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com> Cc: linux-kernel@vger.kernel.org Cc: x86@kernel.org 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 dfb7d657cf43..3fe68483463c 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 memory encryption is not active */ + if (!mem_encrypt_active()) return 0; /* Should not be working on unaligned addresses */ -- 2.9.5
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