diff options
| author |   H. Peter Anvin (Intel) <hpa@zytor.com> | 2025-03-05 10:47:22 -0800 |
|---|---|---|
| committer |   Ingo Molnar <mingo@kernel.org> | 2025-03-19 11:15:11 +0100 |
| commit | 841326332bcb13ae4e6cd456350bf566a402b45e (patch) | |
| tree | 52b6665c43cefdcb9be299062a31c66c27f5f4a7 /net/openvswitch/ssh:/git@git.zx2c4.com/git:/git.zx2c4.com | |
| parent | x86/cpufeatures: Add {REQUIRED,DISABLED} feature configs (diff) | |
x86/cpufeatures: Generate the <asm/cpufeaturemasks.h> header based on build config
Introduce an AWK script to auto-generate the <asm/cpufeaturemasks.h> header
with required and disabled feature masks based on <asm/cpufeatures.h>
and the current build config.
Thus for any CPU feature with a build config, e.g., X86_FRED, simply add:
config X86_DISABLED_FEATURE_FRED
def_bool y
depends on !X86_FRED
to arch/x86/Kconfig.cpufeatures, instead of adding a conditional CPU
feature disable flag, e.g., DISABLE_FRED.
Lastly, the generated required and disabled feature masks will be added to
their corresponding feature masks for this particular compile-time
configuration.
[ Xin: build integration improvements ]
[ mingo: Improved changelog and comments ]
Signed-off-by: H. Peter Anvin (Intel) <hpa@zytor.com>
Signed-off-by: Xin Li (Intel) <xin@zytor.com>
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Reviewed-by: Nikolay Borisov <nik.borisov@suse.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Link: https://lore.kernel.org/r/20250305184725.3341760-3-xin@zytor.com
Diffstat (limited to 'net/openvswitch/ssh:/git@git.zx2c4.com/git:/git.zx2c4.com')
0 files changed, 0 insertions, 0 deletions