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Re: [Xen-devel] Bisected Xen-unstable: "Segment register inaccessible for d1v0" when starting HVM guest on intel

>>> On 02.07.14 at 14:08, <feng.wu@xxxxxxxxx> wrote:
>> From: Jan Beulich [mailto:JBeulich@xxxxxxxx]
>> Just like copy_to_user() would produce -EFAULT for a hypercall
>> when used on a non-present page or a non-canonical address, it
>> should (and afaict will with how things are right now) similarly
>> produce -EFAULT for an attempted access to a guest-accessible
> Do you mean user-accessible here?

Oh yes, of course.


>> page when the current mode of the guest is supervisor.
>> To me it is a logical extension to also fail accesses outside of
>> hypercalls or emulation.
>> Jan

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