Re: [Xen-devel] [Pkg-xen-devel] Bug#785187: xen-hypervisor-4.5-amd64: Option ucode=scan is not working

[Atom2 <ariel.atom2@xxxxxxxxxx>]

Am 13.05.15 um 15:41 schrieb Ian Campbell:
> I think I remember some discussion of something in this area not too
> long ago on xen-devel. CC-s added.
I assume you refer to this discussion which happend to be on the 
xen-users mailing list:
http://lists.xen.org/archives/html/xen-users/2014-05/msg00052.html

Especially look at the first answer 
(http://lists.xen.org/archives/html/xen-users/2014-05/msg00053.html).
Following those points mentioned in there should get you up and running 
- unless there's really a bug lurking somewhere.
My guess is that the cpio archive was not created with the (required) 
cpio option "-H newc".
Regards Atom2
> Konrad, do you know of any issues with ucode=scan in 4.4?
>
> On Wed, 2015-05-13 at 10:27 +0200, Stephan Seitz wrote:
> > Package: xen-hypervisor-4.5-amd64
> > Version: 4.5.0-1
> > Severity: normal
> >
> > Dear Maintainer,
> >
> > according to the documentation the option ucode=scan should tell XEN to
> > look for a microcode update in an uncompressed initrd.
> >
> > While I donât use the Debian kernel the tools to generate the initrd are
> > part of Debian. The command âcpio -i < /boot/initrd.img-4.0.2-Dom0â
> > creates the directory structure âkernel/x86/microcode/GenuineIntel.binâ,
> > so I think the initrd is allright.
> >
> > But according to /proc/cpuinfo the microcode update doesnât happen. If
> > I copy GenuineIntel.bin to /boot, create a new module section in grub.cfg
> > and boot with ucode=-1, then the update is working. In both cases dmesg
> > or âxl dmesgâ donât tell anything about microcode updates (successfull or
> > not).
> >
> > The option ucode=scan doesnât work with XEN 4.4 either or with 3.6
> > kernels.
> >
> > -- System Information:
> > Debian Release: stretch/sid
> >    APT prefers oldoldstable-updates
> >    APT policy: (500, 'oldoldstable-updates'), (500, 'testing'), (500, 'stable')
> > Architecture: amd64 (x86_64)
> > Foreign Architectures: i386
> >
> > Kernel: Linux 4.0.2-Dom0 (SMP w/8 CPU cores)
> > Locale: LANG=de_DE.UTF-8, LC_CTYPE=de_DE.UTF-8 (charmap=UTF-8)
> > Shell: /bin/sh linked to /bin/dash
> > Init: sysvinit (via /sbin/init)
> >
> > xen-hypervisor-4.5-amd64 depends on no packages.
> >
> > Versions of packages xen-hypervisor-4.5-amd64 recommends:
> > ii  xen-utils-4.5  4.5.0-1
> >
> > xen-hypervisor-4.5-amd64 suggests no packages.
> >
> > -- no debconf information
> >
> > _______________________________________________
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> > Pkg-xen-devel@xxxxxxxxxxxxxxxxxxxxxxx
> > http://lists.alioth.debian.org/cgi-bin/mailman/listinfo/pkg-xen-devel
>
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