Date: Thu, 4 Feb 2016 18:00:38 +0100 From: Gerd Hafenbrack <gerd.hafenbrack@gmail.com> To: freebsd-xen@freebsd.org, freebsd-virtualization@freebsd.org Subject: Re: AMD CPUs Message-ID: <56B383B6.20100@gmail.com> In-Reply-To: <56B34238.2070804@citrix.com> References: <56B32F11.7050100@gmail.com> <56B34238.2070804@citrix.com>
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On 2016-02-04 13:21, Roger Pau Monné wrote: > El 4/2/16 a les 11:59, Gerd Hafenbrack ha escrit: >> Hello, >> >> I read on http://wiki.xen.org/wiki/FreeBSD_Dom0 the following: >>> ... to run a FreeBSD PVH Dom0 an Intel box with EPT and a working IOMMU is required. >> >> Why only intel and not an AMD CPU with Rapid Virtualization Indexing >> (RVI) and IOMMU as well? > > There's no technical reason on why this was done this way. It's just > that the original PVH implementation inside of Xen was badly designed, > and one of the results is the lack of support on AMD hardware. This is > not related to FreeBSD at all, Linux has the same exact problem. > > I'm (together with other people) currently working on removing this (and > other) stupid limitation by doing a proper implementation of PVH inside > of Xen. This new implementation is ATM called HVMlite. Sadly I can not > yet provide an ETA on when this is going to be finished. Once HVMlite is > finished inside of Xen FreeBSD will hopefully be able to run on AMD > hardware just like it does on Intel one. I will do a HEADS UP once this > is in testing state. > > Roger. Thx. I have to use an AMD box. In the meantime: bhyve? Already mature enough? or VirtualBox?
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