Date: Wed, 16 Oct 2019 11:28:23 +0200 From: Roger Pau =?iso-8859-1?Q?Monn=E9?= <roger.pau@citrix.com> To: Stefan Parvu <sparvu@kronometrix.org> Cc: <freebsd-xen@freebsd.org> Subject: Re: cannot install FreeBSD 12.0 Xen 4.12.1 on Intel Core i7 CPU 930 Message-ID: <20191016092823.GG14005@Air-de-Roger> In-Reply-To: <D812AE11-3DAC-4A0D-A576-50006DCBA1A5@kronometrix.org> References: <DEEE41ED-5D88-439B-B583-7C3450C696FF@kronometrix.org> <20191016084050.GD14005@Air-de-Roger> <4D6CBDA5-711B-4501-AFC1-A41D1134EF73@kronometrix.org> <20191016090022.GE14005@Air-de-Roger> <9D9848D6-2634-4777-9EE0-8DECAD2FE5CD@kronometrix.org> <20191016091230.GF14005@Air-de-Roger> <D812AE11-3DAC-4A0D-A576-50006DCBA1A5@kronometrix.org>
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On Wed, Oct 16, 2019 at 12:17:20PM +0300, Stefan Parvu wrote: > > > > Your box doesn't seem to have an iommu (aka vt-d for Intel). > > In BIOS I do have VT-D Enabled option. Would that be broken or not working ? Are you sure it's VT-d and not VT-x what you have enabled in the BIOS? Looking at the details of your CPU: https://ark.intel.com/content/www/us/en/ark/products/41447/intel-core-i7-930-processor-8m-cache-2-80-ghz-4-80-gt-s-intel-qpi.html VT-d is not listed in 'Advanced Technologies'. For example looking at a newer model: https://ark.intel.com/content/www/us/en/ark/products/149091/intel-core-i7-8565u-processor-8m-cache-up-to-4-60-ghz.html You can see VT-d listed in 'Advanced Technologies'. > I think I have used Xen a bit older version on Debian some time back if Im not wrong, on the same hdw. See below. > >> But you need all boot log. I will try your option tonight. I cant access the hardware now. > > > > If you can that would be helpful, but AFAIK this box is simply not > > capable of running a Xen PVH dom0 (which is the only mode FreeBSD > > supports in order to work as dom0). Either it has a broken iommu or no > > iommu at all. > > Hmmm. Thats strange since I do recall I had previously used here Xen but on Linux. But older > version. Could it be something changed regarding Xen and iommu or ? Linux dom0 would likely be in PV mode (note the missing H), which doesn't require an iommu. OTOH FreeBSD only supports PVH dom0, which does require an iommu. Roger.
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