kernel/include/linux/cc_platform.h, branch linux-5.14.yHosts the 0x221E linux distro kernel.https://universe.0xinfinity.dev/distro/kernel/atom?h=linux-5.14.y2021-11-17T10:04:52Zarch/cc: Introduce a function to check for confidential computing features2021-11-17T10:04:52ZTom Lendackythomas.lendacky@amd.com2021-09-08T22:58:33Zurn:sha1:0e1cd02ff0d89793681aabf0bc56f26ebd4273dd
commit 46b49b12f3fc5e1347dba37d4639e2165f447871 upstream.
In preparation for other confidential computing technologies, introduce
a generic 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() || ... ).
[ bp: s/_CC_PLATFORM_H/_LINUX_CC_PLATFORM_H/g ]
Co-developed-by: Andi Kleen <ak@linux.intel.com>
Signed-off-by: Andi Kleen <ak@linux.intel.com>
Co-developed-by: Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@linux.intel.com>
Signed-off-by: Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@linux.intel.com>
Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Link: https://lkml.kernel.org/r/20210928191009.32551-3-bp@alien8.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>