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Commit 7220b244 authored by Xi Ruoyao's avatar Xi Ruoyao Committed by Greg Kroah-Hartman
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x86/mm: Don't disable PCID when INVLPG has been fixed by microcode



commit f24f669d03f884a6ef95cca84317d0f329e93961 upstream.

Per the "Processor Specification Update" documentations referred by
the intel-microcode-20240312 release note, this microcode release has
fixed the issue for all affected models.

So don't disable PCID if the microcode is new enough.  The precise
minimum microcode revision fixing the issue was provided by Pawan
Intel.

[ dhansen: comment and changelog tweaks ]

Signed-off-by: default avatarXi Ruoyao <xry111@xry111.site>
Signed-off-by: default avatarDave Hansen <dave.hansen@linux.intel.com>
Acked-by: default avatarPawan Gupta <pawan.kumar.gupta@linux.intel.com>
Link: https://lore.kernel.org/all/168436059559.404.13934972543631851306.tip-bot2@tip-bot2/
Link: https://github.com/intel/Intel-Linux-Processor-Microcode-Data-Files/releases/tag/microcode-20240312
Link: https://cdrdv2.intel.com/v1/dl/getContent/740518 # RPL042, rev. 13
Link: https://cdrdv2.intel.com/v1/dl/getContent/682436 # ADL063, rev. 24
Link: https://lore.kernel.org/all/20240325231300.qrltbzf6twm43ftb@desk/
Link: https://lore.kernel.org/all/20240522020625.69418-1-xry111%40xry111.site


Signed-off-by: default avatarPawan Gupta <pawan.kumar.gupta@linux.intel.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 96c2ddba
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