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| author | Tom Lendacky <thomas.lendacky@amd.com> | 2021-09-09 00:58:36 +0200 |
|---|---|---|
| committer | Borislav Petkov <bp@suse.de> | 2021-10-04 11:46:46 +0200 |
| commit | 32cb4d02fb02cae2e0696c1ce92d8195574faf59 (patch) | |
| tree | 8e33210b05f9a0d2da8384b5494fa46c634d0b05 /arch/x86/realmode | |
| parent | powerpc/pseries/svm: Add a powerpc version of cc_platform_has() (diff) | |
| download | linux-32cb4d02fb02cae2e0696c1ce92d8195574faf59.tar.xz linux-32cb4d02fb02cae2e0696c1ce92d8195574faf59.zip | |
x86/sme: Replace occurrences of sme_active() with cc_platform_has()
Replace uses of sme_active() with the more generic cc_platform_has()
using CC_ATTR_HOST_MEM_ENCRYPT. If future support is added for other
memory encryption technologies, the use of CC_ATTR_HOST_MEM_ENCRYPT
can be updated, as required.
This also replaces two usages of sev_active() that are really geared
towards detecting if SME is active.
Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Link: https://lkml.kernel.org/r/20210928191009.32551-6-bp@alien8.de
Diffstat (limited to 'arch/x86/realmode')
| -rw-r--r-- | arch/x86/realmode/init.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/arch/x86/realmode/init.c b/arch/x86/realmode/init.c index 31b5856010cb..c878c5ee5a4c 100644 --- a/arch/x86/realmode/init.c +++ b/arch/x86/realmode/init.c @@ -3,6 +3,7 @@ #include <linux/slab.h> #include <linux/memblock.h> #include <linux/mem_encrypt.h> +#include <linux/cc_platform.h> #include <linux/pgtable.h> #include <asm/set_memory.h> @@ -44,7 +45,7 @@ void __init reserve_real_mode(void) static void sme_sev_setup_real_mode(struct trampoline_header *th) { #ifdef CONFIG_AMD_MEM_ENCRYPT - if (sme_active()) + if (cc_platform_has(CC_ATTR_HOST_MEM_ENCRYPT)) th->flags |= TH_FLAGS_SME_ACTIVE; if (sev_es_active()) { @@ -81,7 +82,7 @@ static void __init setup_real_mode(void) * decrypted memory in order to bring up other processors * successfully. This is not needed for SEV. */ - if (sme_active()) + if (cc_platform_has(CC_ATTR_HOST_MEM_ENCRYPT)) set_memory_decrypted((unsigned long)base, size >> PAGE_SHIFT); memcpy(base, real_mode_blob, size); |