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SubjectRe: [PATCH V3 4/4] microcode/x86/amd: early microcode patch loading support for AMD
On Fri, May 31, 2013 at 01:26:49AM -0300, Henrique de Moraes Holschuh wrote:
> On Thu, 30 May 2013, Jacob Shin wrote:
> > mkdir initrd
> > cd initrd
> > -mkdir kernel
> > -mkdir kernel/x86
> > -mkdir kernel/x86/microcode
> > -cp ../microcode.bin kernel/x86/microcode/GenuineIntel.bin
> > -find .|cpio -oc >../ucode.cpio
> > +mkdir -p kernel/x86/microcode
> > +cp ../microcode.bin kernel/x86/microcode/GenuineIntel.bin (or AuthenticAMD.bin)
> Can I just
> 'cat /lib/firmware/amd-ucode/*bin >kernel/x86/microcode/AuthenticAMD.bin'
> to get a valid microcode container for all amd processors?
> The answer for Intel is "yes". I sure hope it is the same for AMD...

No, this doesn't work for AMD.

The container file includes a header section with information how to
map CPU F/M/S to microcode revisions provided with a container
file. Concatenating several container files will not create an
all-embracing header section.

More details were available on the web pages. But it seems
that the web site is not available anymore ...


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