[Xen-devel] Re: [PATCH 0/2] x86/microcode: support for microcode update in Xen dom0

[Jeremy Fitzhardinge <jeremy@xxxxxxxx>]

On 01/31/2011 05:11 PM, H. Peter Anvin wrote:
> Note: Xen may not have devices, but it is already using multiboot to
> load multiple modules.  It could load the microcode blob that way.
>
> That would enable an earlier loading of microcode, which is a very
> good thing.

Yes, that is a thought, but it would require some distro support to make
sure the firmware is copied into /boot, and grub updated appropriately.

The principle advantage of updating the microcode driver is that it Just
Works regardless of whether the system is booting native or Xen.

    J

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