Re: [PATCH v3 2/8] mm: Introduce a function to check for confidential computing features
From: Borislav Petkov <bp@alien8.de>
Date: 2021-09-10 15:02:26
Also in:
amd-gfx, dri-devel, kexec, kvm, linux-efi, linux-fsdevel, linux-iommu, linux-s390, lkml, platform-driver-x86
On Wed, Sep 08, 2021 at 05:58:33PM -0500, Tom Lendacky wrote:
In prep for other confidential computing technologies, introduce a generic
preparation
helper function, cc_platform_has(), that can be used to check for specific active confidential computing attributes, like memory encryption. This is intended to eliminate having to add multiple technology-specific checks to the code (e.g. if (sev_active() || tdx_active())).
...
quoted hunk ↗ jump to hunk
diff --git a/include/linux/cc_platform.h b/include/linux/cc_platform.h new file mode 100644 index 000000000000..253f3ea66cd8 --- /dev/null +++ b/include/linux/cc_platform.h@@ -0,0 +1,88 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * Confidential Computing Platform Capability checks + * + * Copyright (C) 2021 Advanced Micro Devices, Inc. + * + * Author: Tom Lendacky <thomas.lendacky@amd.com> + */ + +#ifndef _CC_PLATFORM_H
_LINUX_CC_PLATFORM_H
+#define _CC_PLATFORM_H
--
Regards/Gruss,
Boris.
https://people.kernel.org/tglx/notes-about-netiquette