On 9/10/18 11:26 AM, Mark Johnston wrote:
Hi,
Support for boot-time loading of Intel microcode updates has landed in
the kernel in r337715, and in the sysutils/devcpu-data port as of 1.20.
I'd like to solicit some testing of the feature ahead of 12.0.
The port has been modified to install /boot/firmware/intel-ucode.bin.
This file contains a copy of every Intel microcode update supplied by
the port. Per the pkg-message, one can enable early loading of this
file by specifying:
cpu_microcode_load="YES"
cpu_microcode_name="/boot/firmware/intel-ucode.bin"
in loader.conf. The update will be applied upon a subsequent reboot.
Testing consists of enabling early loading and verifying that the CPUs
report an updated microcode version. If early loading fails, a message
is printed to the dmesg. If your system is capable of successful ACPI
suspend/resume, it is useful to also verify that the microcode remains
updated following a resume.
To fetch the current microcode version, use sysutils/x86info:
# kldload -n cpuctl && x86info -a | grep Micro
Microcode version: 0x0000000000000020
Compare with the version installed by the microcode_update rc script at
run-time:
# service microcode_update onestart
Updating CPU Microcode...
Done.
# kldload -n cpuctl && x86info -a | grep Micro
Microcode version: 0x0000000000000020
If your testing indicates that the boot-time loading method doesn't
work, please include the dmesg in your reply. Thanks in advance.
Hey there Mark,
So I've just tested this on a kabylake system running a kernel/world
from Sept 7th which I believe is recent enough.
After updating /boot/loader.conf as per your email I am not sure if any
microcode updates are being applied. I'm not seeing any messages
regarding firmware updates being applied in the dmesg buffer. running
x86info results in the following:
$ sudo kldload -n cpuctl && sudo x86info -a | grep Micro
Microcode version: 0x000000000000008e
this is after rebooting with the updated loader.conf as well as running
the rc script by hand. i didn't think to compare the output of x86info
before running the rc script, i can do that later today.
for reference here is my dmesg:
https://gist.github.com/nomadlogic/bfc54315b97d374a7818d29bfc93223e
Cheers,
-pete
--
Pete Wright
p...@nomadlogic.org
@nomadlogicLA
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