From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Jan Beulich" Subject: Re: [PATCH v2 0/2] Support of RO MMCFG access for PVH/HVMlite dom0s Date: Fri, 18 Dec 2015 03:11:46 -0700 Message-ID: <5673E9F202000078000C10EC@prv-mh.provo.novell.com> References: <1450383771-3636-1-git-send-email-boris.ostrovsky@oracle.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <1450383771-3636-1-git-send-email-boris.ostrovsky@oracle.com> Content-Disposition: inline List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-devel-bounces@lists.xen.org Errors-To: xen-devel-bounces@lists.xen.org To: Boris Ostrovsky Cc: andrew.cooper3@citrix.com, keir@xen.org, xen-devel@lists.xen.org List-Id: xen-devel@lists.xenproject.org >>> On 17.12.15 at 21:22, wrote: > * Left non-MMCFG RO accesses unhandled (we havent't encountered those accesses > yet with PVH dom0 and it's probably better to fault on them and investigate > whether they are guest's issues). I seriously question this being a good approach, since I can't see why what is appropriate here for PV shouldn't also be appropriate for PVH or HVMlite. Did you indeed try with at least one of the device kinds that get marked r/o (AMD IOMMU, PCI serial card used by hypervisor, EHCI device with debug port used by hypervisor, "vga=keep" used) at present? Jan