superrob1500
/
mirror-linux
mirror of https://github.com/torvalds/linux
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity
mirror-linux/Documentation/arch
History
Borislav Petkov (AMD) 80501dff81 Documentation/arch/x86: Hide clearcpuid= 
This option was never meant to be used in production because it solely
clears the X86_FEATURE kernel-internal representation of what CPUID bits
it has detected and doesn't do any *proper* feature disablement like
clearing CR4.CET in the user shadow stack case, for example.

So remove its documentation so that it doesn't get used in production
and people get silly ideas. It is meant strictly for debugging; and if
a chicken bit for properly disabling a feature is warranted, then that
would need proper enablement.

No functional changes.

Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Cc: Mathias Krause <minipli@grsecurity.net>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Link: https://patch.msgid.link/20260520202508.160112-1-bp@kernel.org
 		2026-05-26 05:37:20 +02:00
..
arc Documentation: use a source-read extension for the index link boilerplate 2026-01-23 11:59:34 -07:00
arm Documentation: use a source-read extension for the index link boilerplate 2026-01-23 11:59:34 -07:00
arm64 arm64 updates for 7.1 (second round): 2026-04-20 16:46:22 -07:00
loongarch Documentation: use a source-read extension for the index link boilerplate 2026-01-23 11:59:34 -07:00
m68k Documentation: use a source-read extension for the index link boilerplate 2026-01-23 11:59:34 -07:00
mips Documentation: use a source-read extension for the index link boilerplate 2026-01-23 11:59:34 -07:00
nios2 docs: kernel_feat.py: fix potential command injection 2024-01-11 09:21:01 -07:00
openrisc Documentation: use a source-read extension for the index link boilerplate 2026-01-23 11:59:34 -07:00
parisc Documentation: use a source-read extension for the index link boilerplate 2026-01-23 11:59:34 -07:00
powerpc powerpc updates for 7.0 2026-02-10 21:46:12 -08:00
riscv riscv: Docs: fix unmatched quote warning 2026-05-13 22:21:32 -06:00
s390 s390 updates for 7.1 merge window 2026-04-22 11:13:45 -07:00
sh docs: kernel_feat.py: fix potential command injection 2024-01-11 09:21:01 -07:00
sparc Docs: typos/spelling 2024-05-02 10:02:29 -06:00
x86 Documentation/arch/x86: Hide clearcpuid= 2026-05-26 05:37:20 +02:00
xtensa docs: kernel_feat.py: fix potential command injection 2024-01-11 09:21:01 -07:00
index.rst The number of commits for documentation is not huge this time around, but 2023-11-01 17:11:41 -10:00