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mirror of https://git.FreeBSD.org/src.git synced 2024-12-23 11:18:54 +00:00
freebsd/sys/x86
Konstantin Belousov 45ed991d96 On amd64, enable workarounds for several Ryzen erratas as described in
the AMD document 55449 'Revision Guide for AMD Family 17h Models
00h-0Fh Processors' rev 1.12.

The errata numbers are mentioned near each action.

It seems that newer BIOSes already include required chicken bits
settings, so the magic MSR updates are only needed when BIOS cannot be
updated.  On the other hand, MWAIT avoidance seems to be important.

Sponsored by:	The FreeBSD Foundation
MFC after:	1 week
2018-07-27 15:31:20 +00:00
..
acpica Use C99 initializers for instances of struct apic_enumerator. 2018-07-13 17:42:48 +00:00
bios sys/x86: further adoption of SPDX licensing ID tags. 2017-11-27 15:11:47 +00:00
cpufreq cpufreq: Remove error-prone table terminators in favor of automatic sizing 2018-04-14 03:15:05 +00:00
include Use the existing MSR_BIOS_SIGN on AMD. 2018-07-13 20:56:20 +00:00
iommu Don't include DMAR map entry zone items in kernel dumps. 2018-02-18 16:03:50 +00:00
isa Provide a helper function acpi_get_fadt_bootflags() to fetch the FADT 2018-06-25 11:01:12 +00:00
pci Add ISA PNP tables to ISA drivers. Fix a few incidental comments. 2018-01-29 00:22:30 +00:00
x86 On amd64, enable workarounds for several Ryzen erratas as described in 2018-07-27 15:31:20 +00:00
xen xen: implement early init helper for PVHv2 2018-07-19 08:44:52 +00:00