Re: [Xen-devel] [PATCH] x86: adjust reserved bit page fault handling

[Keir Fraser <Keir.Fraser@xxxxxxxxxxxx>]

On 1/2/08 10:38, "Jan Beulich" <jbeulich@xxxxxxxxxx> wrote:

>> The shadow pagetable code deliberately introduces invalid pagetable
>> entries as part of its fast-path treatment of MMIO and not-present
>> entries in the guest tables, so paging_fault needs to be called for
>> PFEC_reserved_bit faults.
> 
> Here's a replacement patch then, it would still be questionable whether
> reserved bit faults should ever be propagated to a guest...
> 
> Signed-off-by: Jan Beulich <jbeulich@xxxxxxxxxx>

What problem does this patch solve?

 -- Keir



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