Your message dated Thu, 5 Aug 2021 23:33:50 +0200
with message-id <[email protected]>
and subject line Re: Bug#990717: xen-system-amd64: Microcode isn't loaded when
booting in xen mode
has caused the Debian Bug report #990717,
regarding xen-system-amd64: Microcode isn't loaded when booting in xen mode
to be marked as done.
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--
990717: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=990717
Debian Bug Tracking System
Contact [email protected] with problems
--- Begin Message ---
Package: xen-system-amd64
Version: 4.11.4+107-gef32c7afa2-1
Severity: important
Dear Maintainer,
When booting in Xen mode my system doen't load microcode, I suposse this is the
reason I have a line in /var/log/kern.log saying:
|Jun 28 17:09:28 xuxa3 kernel: [ 3.013020] Performance Events: unsupported
p6 CPU model 79 no PMU driver, software events only
And perfomamce is degraded:
When booting the system in normal mode, no xen mode, the first two lines
written in /var/log/kern.log say:
| Jul 5 14:05:17 xuxa3 kernel: [ 0.000000] microcode: microcode updated
early to revision 0xb00003e, date = 202
1-02-06
| Jul 5 14:05:17 xuxa3 kernel: [ 0.000000] Linux version 4.19.0-17-amd64
([email protected]) (gcc version 8.3.0 (Debian 8.3.0-6)) #1 SMP
Debian 4.19.194-1 (2021-06-10)
In xen mode the first line insn't written at all.
I can't remenber if the first time I installed xen the microcode was loaded or
not, but as long as I can check the microcode isn't loaded and the system
performance is clearly degraded.
Yours,
Jose L.
-- System Information:
Debian Release: 10.10
APT prefers stable
APT policy: (500, 'stable')
Architecture: amd64 (x86_64)
Kernel: Linux 4.19.0-17-amd64 (SMP w/8 CPU cores)
Locale: LANG=es_ES.UTF-8, LC_CTYPE=es_ES.UTF-8 (charmap=UTF-8),
LANGUAGE=es_ES.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /usr/bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled
Versions of packages xen-system-amd64 depends on:
ii xen-hypervisor-4.11-amd64 4.11.4+107-gef32c7afa2-1
ii xen-hypervisor-common 4.11.4+107-gef32c7afa2-1
ii xen-utils-4.11 4.11.4+107-gef32c7afa2-1
xen-system-amd64 recommends no packages.
xen-system-amd64 suggests no packages.
-- no debconf information
--- End Message ---
--- Begin Message ---
Hi José, Andy,
When booting Xen, you indeed need to provide the ucode=scan hypervisor
option to make it search around and load microcode early enough.
This is also documented in the /etc/default/grub.d/xen.cfg file in the
xen packages now.
Thanks Andy, for answering.
Setting to done now.
Hans
--- End Message ---
