Re: [Xen-devel] [PATCH 18/18] PVH xen: introduce vmx_pvh.c

["Jan Beulich" <JBeulich@xxxxxxxx>]

>>> On 29.06.13 at 05:03, Mukesh Rathor <mukesh.rathor@xxxxxxxxxx> wrote:
> Just for my knowledge, why can't we read the GDT entry in the PV case
> to get the hidden fields, since we have access to both the GDT base
> and the selector?

Because what's in the registers may not be what's in the GDT. And
of course it would be quite a bit more expensive (as opposed to
the PVH case where you can just pick which of the VMCS fields you
want to read - there shouldn't be a performance difference).

Jan


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