diff options
Diffstat (limited to 'meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.14.71-e3000/0047-x86-mm-Include-SEV-for-encryption-memory-attribute-c.patch')
| -rw-r--r-- | meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.14.71-e3000/0047-x86-mm-Include-SEV-for-encryption-memory-attribute-c.patch | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.14.71-e3000/0047-x86-mm-Include-SEV-for-encryption-memory-attribute-c.patch b/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.14.71-e3000/0047-x86-mm-Include-SEV-for-encryption-memory-attribute-c.patch new file mode 100644 index 00000000..620faa8d --- /dev/null +++ b/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.14.71-e3000/0047-x86-mm-Include-SEV-for-encryption-memory-attribute-c.patch @@ -0,0 +1,47 @@ +From ff57f938f629f70bce162adee6ee007315a4e4e2 Mon Sep 17 00:00:00 2001 +From: Tom Lendacky <thomas.lendacky@amd.com> +Date: Fri, 20 Oct 2017 09:30:48 -0500 +Subject: [PATCH 47/95] 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 +Signed-off-by: Sudheesh Mavila <sudheesh.mavila@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 464f53d..be517db 100644 +--- a/arch/x86/mm/pageattr.c ++++ b/arch/x86/mm/pageattr.c +@@ -1783,8 +1783,8 @@ 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 */ +-- +2.7.4 + |