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Re: [Xen-devel] Porting of Guest OS

Ronald G. Minnich wrote:
On Thu, 30 Dec 2004, Amitabh Tamhane wrote:

During boot-up:
1) Applying Intel IA32 Microcode update: insmod:
/lib/modules/2.6.5-7.97-smp/kernel/arch/i386/kernel/microcode.o: insmod
char-major-10-184 failed

is it safe to assume that code in Ring 1 can't upgrade microcode :-)?
I'd say that the microcode module would surprise me if it worked.

It should be possible to make it work by using the hypervisor interface
equivalents of rdmsr/wrmsr. See section 9.11 of the IA32 architecture
manual Volume 3.

Does DOM0 always run on all physical CPU cores?

David Hopwood <david.nospam.hopwood@xxxxxxxxxxxxxxxx>

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