want errata for early AMD family 17h
In the Revision Gude for AMD Family 17h Models 00h-0Fh Processors, there are a handful of MSR-driven fixes to errata. Specifically:
1021 Load Operation May Receive Stale Data From Older Store Operation
Program MSR C001_1029  to 1b.
1033 A Lock Operation May Cause the System to Hang
Program MSR C001_1020  to 1b.
1049 FCMOV Instruction May Not Execute Correctly
Program MSR C001_1028  to 1b.
1091 4K Address Boundary Crossing Load Operation May Receive Stale Data
Program MSR C001_102D  to 1b.
It would be nice to include the workarounds so any folks running illumos on the affected early-generation Zen CPUs can avoid those bugs.