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Documentation/x86: Fix backwards on/off logic about YMM support

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commit 1b0fc0345f2852ffe54fb9ae0e12e2ee69ad6a20 upstream

These options clearly turn *off* XSAVE YMM support.  Correct the
typo.

Reported-by: Ben Hutchings <ben@decadent.org.uk>
Fixes: 553a5c03e90a ("x86/speculation: Add force option to GDS mitigation")
Signed-off-by: Dave Hansen <dave.hansen@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Dave Hansen 2023-08-01 07:31:07 -07:00 committed by Greg Kroah-Hartman
parent ad7670dd65
commit 3e21d8b0f3
1 changed files with 1 additions and 1 deletions
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Documentation/admin-guide/hw-vuln/gather_data_sampling.rst
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@ -63,7 +63,7 @@ GDS can also be mitigated on systems that don't have updated microcode by
disabling AVX. This can be done by setting gather_data_sampling="force" or
"clearcpuid=avx" on the kernel command-line.
If used, these options will disable AVX use by turning on XSAVE YMM support.
If used, these options will disable AVX use by turning off XSAVE YMM support.
However, the processor will still enumerate AVX support. Userspace that
does not follow proper AVX enumeration to check both AVX *and* XSAVE YMM
support will break.