From mboxrd@z Thu Jan 1 00:00:00 1970 From: Cyril Novikov Subject: Re: Virtualization difficulty -- phandles Date: Mon, 24 Jul 2017 16:00:20 -0700 Message-ID: References: <59762000.7000302@gmail.com> Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <59762000.7000302-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> Content-Language: en-US Sender: devicetree-spec-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org List-ID: Content-Type: text/plain; charset="us-ascii"; format="flowed" To: devicetree-spec-u79uwXL29TY76Z2rM5mHXA@public.gmane.org On 7/24/2017 9:27 AM, Frank Rowand wrote: > Hi Cyril, > > On 07/11/17 23:15, Cyril Novikov wrote: >> Hi, all! >> >> The product that I work on supports physical device assignment (aka >> "pass-through") to virtual machines, which means we need to take >> portions of the physical FDT and include them in the guest FDT. This >> needs to happen automatically in software. > > Is this for Linux, or some other OS? > > If Linux, do you get the FDT from /sys/firmware/fdt or some other > method? No, this is for a hypervisor running on bare metal, not under Linux. We get the device tree from the board vendor with their Linux port. -- Cyril