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platform/x86/intel/pmt: Sapphire Rapids PMT errata fix

David Arcari requested to merge darcari/centos-stream-9:2144690 into main

Bugzilla: https://bugzilla.redhat.com/2144690
Tested: https://bugzilla.redhat.com/show_bug.cgi?id=2144690#c2

commit bcdfa1f77ea7f67368d20384932a9d1e3047ddd2 Author: David E. Box david.e.box@linux.intel.com Date: Fri Nov 4 20:42:28 2022 -0700

platform/x86/intel/pmt: Sapphire Rapids PMT errata fix

On Sapphire Rapids, due to a hardware issue affecting the PUNIT telemetry
region, reads that are not done in QWORD quantities and alignment may
return incorrect data. Use a custom 64-bit copy for this region.

Signed-off-by: David E. Box <david.e.box@linux.intel.com>
Link: https://lore.kernel.org/r/20221105034228.1376677-1-david.e.box@linux.intel.com
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>

Signed-off-by: David Arcari darcari@redhat.com

Edited by David Arcari

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