commit cc30c1c2da190c25004a7f8995cae80516597dde
Author: Matthew Dillon <[email protected]>
Date: Wed Jul 10 23:57:02 2019 -0700
kernel - Zen 2 - Make sure %fs's selector is loaded in AP bootstrap
* Issue load_fs() in the AP bootstrap. It appears that Zen 2 handles
%fs in a weird way when the selector isn't loaded, causing the first
wrmsr(MSR_FSBASE) to quietly fail, and possibly others too.
* For good measure, also issue load_ds() and load_es().
* Fixes DragonFlyBSD's boot on Zen 2.
Summary of changes:
sys/platform/pc64/x86_64/mp_machdep.c | 5 +++++
1 file changed, 5 insertions(+)
http://gitweb.dragonflybsd.org/dragonfly.git/commitdiff/cc30c1c2da190c25004a7f8995cae80516597dde
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DragonFly BSD source repository