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Subject: Re: [PATCH v9 4/5] x86/PCI: Enable a 64bit BAR on AMD Family 15h
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From: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Message-ID: <cb0d5830-11dd-57b8-606b-7eca560cfcc7@oracle.com>
Date: Tue, 28 Nov 2017 13:55:58 -0500
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On 11/28/2017 04:12 AM, Christian König wrote:
>
>
> How about the attached patch? It limits the newly added MMIO space to
> the upper 256GB of the address space. That should still be enough for
> most devices, but we avoid both issues with Xen dom0 as most likely
> problems with memory hotplug as well.

It certainly makes the problem to be less likely so I guess we could do
this for now.

Thanks.
-boris