Re: [Xen-devel] [PATCH v4] x86: add p2m_mmio_write_dm

["Jan Beulich" <JBeulich@xxxxxxxx>]

>>> On 02.12.14 at 12:40, <tim@xxxxxxx> wrote:
> At 15:38 +0800 on 02 Dec (1417531126), Yu, Zhang wrote:
>> 2> p2m_grant_map_ro is also supposed to be discarded? Will handling of 
>> this type of pages goes into __hvm_copy()/__hvm_clear(), or should?
> 
> I think so, yes.  At the moment we inject #GP when the guest writes to
> a read-only grant, which is OK: the guest really ought to know better.
> But I think we'll probably end up with neater code if we handle
> read-only grants the same way as p2m_ram_ro.
> 
> Anyone else have an opinion on the right thing to do here?

I actually came to the same conclusion.

Jan


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