Messages in this thread Patch in this message | | | Date | Tue, 7 Nov 2017 06:44:53 -0800 | From | tip-bot for Tom Lendacky <> | Subject | [tip:x86/asm] x86/mm: Include SEV for encryption memory attribute changes |
| |
Commit-ID: a72ec5a34dca3b635eb2de3b485d0a1b2e591a5c Gitweb: https://git.kernel.org/tip/a72ec5a34dca3b635eb2de3b485d0a1b2e591a5c Author: Tom Lendacky <thomas.lendacky@amd.com> AuthorDate: Fri, 20 Oct 2017 09:30:48 -0500 Committer: Thomas Gleixner <tglx@linutronix.de> CommitDate: Tue, 7 Nov 2017 15:35:56 +0100
x86/mm: Include SEV for encryption memory attribute changes
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> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Borislav Petkov <bp@suse.de> Tested-by: Borislav Petkov <bp@suse.de> Cc: Laura Abbott <labbott@redhat.com> Cc: John Ogness <john.ogness@linutronix.de> Cc: kvm@vger.kernel.org Cc: Matt Fleming <matt@codeblueprint.co.uk> Cc: Borislav Petkov <bp@alien8.de> Cc: Andy Lutomirski <luto@kernel.org> Cc: Dan Williams <dan.j.williams@intel.com> Cc: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com> Link: https://lkml.kernel.org/r/20171020143059.3291-7-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..3fe6848 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 */
| |