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authorAngel Pons <th3fanbus@gmail.com>2021-02-19 18:56:54 +0100
committerPatrick Georgi <pgeorgi@google.com>2021-03-03 09:00:32 +0000
commit6d9af0ce6e340e73f3189bfc1091711892754371 (patch)
tree010a2f66ecdeb3d31e3a60275a923a1368007280 /src/mainboard/kontron
parent8eb3a342d1bbb2bc26fda98683a03574bef098f9 (diff)
soc/intel: Backport SMRR locking support
Backport commit 0cded1f116 (soc/intel/tigerlake: Add SMRR Locking support) to other client platforms. The SMRR MSRs are core-scoped on Skylake and Ice Lake, at least. Older platforms do not support SMRR locking, but now there's seven copies of the same file in the tree. A follow-up will deduplicate smmrelocate.c files into common CPU code. I cannot test Jasper Lake nor Elkhart Lake, but they should still work. As per documentation I do not have access to, Elkhart Lake seems to support SMRR locking. However, Jasper Lake documentation is unclear. Tested on Purism Librem Mini v1 (WHL-U i7-8565U), still boots and SMRR MSRs have the same value on all cores/threads (i7-8565U supports HT). Change-Id: Icbee0985b04418e83cbf41b81f00934f5a663e30 Signed-off-by: Angel Pons <th3fanbus@gmail.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/50936 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Michael Niewöhner <foss@mniewoehner.de> Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org> Reviewed-by: Arthur Heymans <arthur@aheymans.xyz> Reviewed-by: Nico Huber <nico.h@gmx.de>
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