diff options
| author | Kirill A. Shutemov <kirill.shutemov@linux.intel.com> | 2022-02-22 21:57:39 +0300 |
|---|---|---|
| committer | Borislav Petkov <bp@suse.de> | 2022-02-23 19:14:16 +0100 |
| commit | 655a0fa34b4f7ac6e2b1406fab15e52a7b6accb1 (patch) | |
| tree | 689cb0c5e8729235a74ee74c7bb18bd36b4cd652 /arch/x86/include/asm/coco.h | |
| parent | 6198311093dabcafbe345d580c56b5d5a9ab5f3c (diff) | |
x86/coco: Explicitly declare type of confidential computing platform
The kernel derives the confidential computing platform
type it is running as from sme_me_mask on AMD or by using
hv_is_isolation_supported() on HyperV isolation VMs. This detection
process will be more complicated as more platforms get added.
Declare a confidential computing vendor variable explicitly and set it
via cc_set_vendor() on the respective platform.
[ bp: Massage commit message, fixup HyperV check. ]
Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Reviewed-by: Tom Lendacky <thomas.lendacky@amd.com>
Link: https://lore.kernel.org/r/20220222185740.26228-4-kirill.shutemov@linux.intel.com
Diffstat (limited to 'arch/x86/include/asm/coco.h')
| -rw-r--r-- | arch/x86/include/asm/coco.h | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/arch/x86/include/asm/coco.h b/arch/x86/include/asm/coco.h new file mode 100644 index 000000000000..e49f9ddb6ae6 --- /dev/null +++ b/arch/x86/include/asm/coco.h @@ -0,0 +1,14 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef _ASM_X86_COCO_H +#define _ASM_X86_COCO_H + +enum cc_vendor { + CC_VENDOR_NONE, + CC_VENDOR_AMD, + CC_VENDOR_HYPERV, + CC_VENDOR_INTEL, +}; + +void cc_set_vendor(enum cc_vendor v); + +#endif /* _ASM_X86_COCO_H */ |