freebsd-nq/sys/amd64
Konstantin Belousov 0530a9360f Make it possible to re-evaluate cpu_features.
Add cpuctl(4) ioctl CPUCTL_EVAL_CPU_FEATURES which forces re-read of
cpu_features, cpu_features2, cpu_stdext_features, and
std_stdext_features2.

The intent is to allow the kernel to see the changes in the CPU
features after micocode update.  Of course, the update is not atomic
across variables and not synchronized with readers.  See the man page
warning as well.

Reviewed by:	imp (previous version), jilles
Sponsored by:	The FreeBSD Foundation
MFC after:	1 week
Differential revision:	https://reviews.freebsd.org/D13770
2018-01-05 21:06:19 +00:00
..
acpica sys/amd64: further adoption of SPDX licensing ID tags. 2017-11-27 15:03:07 +00:00
amd64 Make it possible to re-evaluate cpu_features. 2018-01-05 21:06:19 +00:00
cloudabi32 Use TO_PTR() to convert integers to pointers. 2017-11-26 14:45:56 +00:00
cloudabi64 Use TO_PTR() to convert integers to pointers. 2017-11-26 14:45:56 +00:00
conf It's time to retire AHC_REG_PRETTY_PRINT and AHD_REG_PRETTY_PRINT from 2017-11-29 23:41:49 +00:00
ia32 sys/amd64: further adoption of SPDX licensing ID tags. 2017-11-27 15:03:07 +00:00
include Add atomic_load(9) and atomic_store(9) operations. 2017-12-19 09:59:20 +00:00
linux Disable vim syntax highlighting. 2017-11-28 18:23:17 +00:00
linux32 Disable vim syntax highlighting. 2017-11-28 18:23:17 +00:00
pci sys/amd64: further adoption of SPDX licensing ID tags. 2017-11-27 15:03:07 +00:00
sgx Fix module unload when SGX support is not present in CPU. 2017-08-18 14:47:06 +00:00
vmm Fix a couple of comments in AMD Virtual Machine Control Block structure 2018-01-05 19:15:24 +00:00
Makefile Bring the tags and links entries for amd64 up to date. 2015-10-27 22:59:24 +00:00