Re: [Xen-devel] [PATCH XTF] don't overrun memory object

[Andrew Cooper <andrew.cooper3@xxxxxxxxxx>]

On 23/01/17 10:30, Jan Beulich wrote:
> Using MOVUPS on an 8-byte quantity is wrong. There's no need for memory
> accesses in any of the probe_*() functions anyway - switch them all to
> insns without any operands or with register ones.
>
> Signed-off-by: Jan Beulich <jbeulich@xxxxxxxx>

So it is.

The memory pointers were a leftover from trying to make this test not
use FEP (and therefore suitable for testing older Xen).

IIRC, the problem was that even with a memory operand, hardware took
care of EM/MP/TS handling before taking a vmexit for MMIO emulation.

Reviewed-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx> and committed.

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