Re: [Xen-devel] [v6][PATCH 2/2] xen:vtd: missing RMRR mapping while share EPT

["Jan Beulich" <JBeulich@xxxxxxxx>]

>>> On 24.09.14 at 10:53, <tiejun.chen@xxxxxxxxx> wrote:
> On 2014/9/24 16:47, Jan Beulich wrote:
>>>>> On 24.09.14 at 10:35, <tiejun.chen@xxxxxxxxx> wrote:
>>> In tools stack, how can we get ultimate e820 table built by hvmloader?
>>
>> What is this needed for?
> 
> I mean in case of a hotplug after the migration, we should check any 
> overlap with current existing RAM/MMIO, right? So we need to know 
> current existing guest RAM/MMIO layout since this ultimate e820 table is 
> just built by hvmloader, not in xen internal.

Actually I think we'd be better off not complicating the tool stack for
this - with proper checking for collisions in the P2M updates, the
assignment ought to fail without the tool stack doing anything.

Jan


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