Re: [PATCH 3.17 100/141] x86, microcode: Fix accessing dis_ucode_ldr on 32-bit

Borislav Petkov
2014-11-25T20:26:34Z

On Tue, Nov 25, 2014 at 02:28:46PM -0500, Boris Ostrovsky wrote:
> You'd have to decide at runtime --- many baremetal systems are
> compiled with PARAVIRT.

Right, but the microcode loader is not used at all on PV, right?

If so, I'd like to add a arch_something_blabla_disabled_loader()
function which is run in the loader init path and returns false on
baremetal and a true when running as a xen guest. I'm not sure how the
detection should be done, though... CPUID with the hypervisor leaf?

--
Regards/Gruss,
Boris.

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