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authorTom Lendacky <thomas.lendacky@amd.com>2021-09-09 00:58:33 +0200
committerBorislav Petkov <bp@suse.de>2021-10-04 11:46:05 +0200
commit46b49b12f3fc5e1347dba37d4639e2165f447871 (patch)
tree65f7081893383c93ba69708bd62545d46c27d1cd /arch/Kconfig
parentx86/ioremap: Selectively build arch override encryption functions (diff)
downloadlinux-46b49b12f3fc5e1347dba37d4639e2165f447871.tar.xz
linux-46b49b12f3fc5e1347dba37d4639e2165f447871.zip
arch/cc: Introduce a function to check for confidential computing features
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
Diffstat (limited to 'arch/Kconfig')
-rw-r--r--arch/Kconfig3
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/Kconfig b/arch/Kconfig
index 8df1c7102643..d1e69d6e8498 100644
--- a/arch/Kconfig
+++ b/arch/Kconfig
@@ -1234,6 +1234,9 @@ config RELR
config ARCH_HAS_MEM_ENCRYPT
bool
+config ARCH_HAS_CC_PLATFORM
+ bool
+
config HAVE_SPARSE_SYSCALL_NR
bool
help