Re: [Xen-devel] [PATCH] x86/ucode: Improve error handling and container file processing on AMD

[Boris Ostrovsky <boris.ostrovsky@xxxxxxx>]

On 12/07/2012 10:08 AM, Jan Beulich wrote:
> > > > On 07.12.12 at 14:46, Boris Ostrovsky <boris.ostrovsky@xxxxxxx> wrote:
> > Do we really need what microcode_init() does?
> Oh yes, absolutely. How else would boot time microcode loading
> work for secondary CPUs without this? Note that the notifier only
> deals with the CPU_DEAD case.
start_secondary() -> microcode_resume_cpu() -> 
microcode_ops->apply_microcode() will update non-boot CPUs in most cases.
This won't quite work when secondary CPU is different from (or at 
different patch level than) boot CPU but that can be fixed.
-boris


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