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    SubjectRe: Linux* Processor Microcode Data File
    Date
    On Monday 09 March 2009, Sitsofe Wheeler wrote:
    >On Mon, Mar 09, 2009 at 08:11:09AM -0700, Arjan van de Ven wrote:
    >> On Mon, 9 Mar 2009 14:16:55 +0000
    >>
    >> Sitsofe Wheeler <sitsofe@yahoo.com> wrote:
    >> > The kernel doesn't load microcode automatically
    >>
    >> it does if you have the right format; the kernel uses
    >> request_firmware() for this.
    >> The microcode on the intel website is not ready for this yet, but we're
    >> working hard to have future drops to be in the new format.
    >
    >Wow so I was redundant AND wrong in the same email!
    >
    >What motivated the switch to the generic request_firmware interface? Is
    >it just less messy/faster than previous methods?
    >
    >Additionally while I remember, is it worth updating the microcode on all
    >machines? At present I have an EeePC 900 and it's unclear if it would
    >benefit from a microcode update (but there's a definite cost to running
    >the current initscript at boot).

    Slight hijack of thread here, but...

    I'll have to admit it was with some trepidation that I might brick my
    processor, which is a quad core AMD 9550, stepping 03 running at 2.2 ghz, but
    the directions didn't note until the end, that it would take a 2.6.29 series
    kernel to do it and I was running 2.6.28.7. But when I got to the
    modprobe -r microcode, modprobe microcode part, there was no feedback from
    either command. So did I, or did I not do this as I was and am running
    2.6.28.7? The following was reported in my log:

    Mar 9 07:22:04 coyote kernel: [65725.810333] microcode: collect_cpu_info_amd : patch_id=0x1000065
    Mar 9 07:22:04 coyote kernel: [65725.810338] platform microcode: firmware: requesting amd-ucode/microcode_amd.bin
    Mar 9 07:22:04 coyote kernel: [65725.847258] microcode: size 1936, total_size 960
    Mar 9 07:22:04 coyote kernel: [65725.847265] microcode: CPU0 patch does not match (processor_rev_id: 1020, eqiv_cpu_id: 1022)
    Mar 9 07:22:04 coyote kernel: [65725.847269] microcode: size 968, total_size 960
    Mar 9 07:22:04 coyote kernel: [65725.847278] microcode: CPU0 updated from revision 0x1000065 to 0x1000083
    Mar 9 07:22:04 coyote kernel: [65725.847312] microcode: collect_cpu_info_amd : patch_id=0x1000065
    Mar 9 07:22:04 coyote kernel: [65725.847317] platform microcode: firmware: requesting amd-ucode/microcode_amd.bin
    Mar 9 07:22:04 coyote kernel: [65725.851377] microcode: size 1936, total_size 960
    Mar 9 07:22:04 coyote kernel: [65725.851390] microcode: CPU1 patch does not match (processor_rev_id: 1020, eqiv_cpu_id: 1022)
    Mar 9 07:22:04 coyote kernel: [65725.851393] microcode: size 968, total_size 960
    Mar 9 07:22:04 coyote kernel: [65725.851403] microcode: CPU1 updated from revision 0x1000065 to 0x1000083
    Mar 9 07:22:04 coyote kernel: [65725.851421] microcode: collect_cpu_info_amd : patch_id=0x1000065
    Mar 9 07:22:04 coyote kernel: [65725.851426] platform microcode: firmware: requesting amd-ucode/microcode_amd.bin
    Mar 9 07:22:04 coyote kernel: [65725.855323] microcode: size 1936, total_size 960
    Mar 9 07:22:04 coyote kernel: [65725.855330] microcode: CPU2 patch does not match (processor_rev_id: 1020, eqiv_cpu_id: 1022)
    Mar 9 07:22:04 coyote kernel: [65725.855333] microcode: size 968, total_size 960
    Mar 9 07:22:04 coyote kernel: [65725.855344] microcode: CPU2 updated from revision 0x1000065 to 0x1000083
    Mar 9 07:22:04 coyote kernel: [65725.855361] microcode: collect_cpu_info_amd : patch_id=0x1000065
    Mar 9 07:22:04 coyote kernel: [65725.855365] platform microcode: firmware: requesting amd-ucode/microcode_amd.bin
    Mar 9 07:22:04 coyote kernel: [65725.863101] microcode: size 1936, total_size 960
    Mar 9 07:22:04 coyote kernel: [65725.863107] microcode: CPU3 patch does not match (processor_rev_id: 1020, eqiv_cpu_id: 1022)
    Mar 9 07:22:04 coyote kernel: [65725.863110] microcode: size 968, total_size 960
    Mar 9 07:22:04 coyote kernel: [65725.863120] microcode: CPU3 updated from revision 0x1000065 to 0x1000083
    Mar 9 07:22:04 coyote kernel: [65725.863122] Microcode Update Driver: v2.00 <tigran@aivazian.fsnet.co.uk>, Peter Oruba

    Inquiring minds and all that. Comments please?

    --
    Cheers, Gene
    "There are four boxes to be used in defense of liberty:
    soap, ballot, jury, and ammo. Please use in that order."
    -Ed Howdershelt (Author)
    "I have five dollars for each of you."
    -- Bernhard Goetz



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