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    SubjectRe: x86/microcode update on systems without INITRD
    On Thu, 7 Jan 2016 13:41:11 +0100
    Markus Trippelsdorf <markus@trippelsdorf.de> wrote:

    > On 2016.01.07 at 13:36 +0100, Thomas Voegtle wrote:
    > > On Thu, 7 Jan 2016, Borislav Petkov wrote:
    > >
    > > >On Thu, Jan 07, 2016 at 01:12:16PM +0100, Thomas Voegtle wrote:
    > > >>I just diffed my 4.3 config with the 4.4 config and saw that the
    > > >>whole Microcode stuff was silently dropped by a normal "make
    > > >>oldconfig".
    > > >
    > > >Can you send me that 4.3 config please?
    > >
    > > Attached. It is a little bit unusual config without modules etc.
    > >
    > > But doesn't dropping Microcde stuff in the config happen to anyone
    > > who hasn't INITRD stuff switched on?
    >
    > Yes. But, as I wrote above, if you simply drop the BLK_DEV_INITRD
    > dependency, it will work just fine.
    > I also don't use modules and the firmware gets applied at boot time.
    >
    > ...
    > [ 2.573261] EDAC amd64: MCT channel count: 2
    > [ 2.573401] EDAC MC0: Giving out device to module amd64_edac
    > controller F10h: DEV 0000:00:18.2 (INTERRUPT) [ 2.573414] EDAC
    > PCI0: Giving out device to module amd64_edac controller EDAC PCI
    > controller: DEV 0000:00:18.2 (POLLED) [ 2.573424] hidraw: raw HID
    > events driver (C) Jiri Kosina [ 2.573449] usbcore: registered new
    > interface driver usbhid [ 2.573449] usbhid: USB HID core driver
    > [ 2.573770] usbcore: registered new interface driver snd-usb-audio
    > [ 2.573786] Netfilter messages via NETLINK v0.30. [ 2.573797]
    > nf_conntrack version 0.5.0 (65536 buckets, 262144 max) [ 2.573966]
    > ctnetlink v0.93: registering with nfnetlink. [ 2.574427]
    > ip_tables: (C) 2000-2006 Netfilter Core Team [ 2.574477] NET:
    > Registered protocol family 17 [ 2.574487] 9pnet: Installing 9P2000
    > support [ 2.574717] microcode: CPU0: patch_level=0x010000db
    > [ 2.574724] microcode: CPU1: patch_level=0x010000db
    > [ 2.574731] microcode: CPU2: patch_level=0x010000db
    > [ 2.574736] microcode: CPU3: patch_level=0x010000db
    > [ 2.574761] microcode: Microcode Update Driver: v2.01
    > <tigran@aivazian.fsnet.co.uk>, Peter Oruba [ 2.574876] registered
    > taskstats version 1 [ 2.575132] Btrfs loaded
    > ...
    >

    I'm not sure what you mean by "drop the BLK_DEV_INITRD dependency",
    but my microcode does not get loaded unless I have BLK_DEV_INITRD=Y
    in my .config.

    I don't use initrd, but I do use modules.

    Mike.

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