Date: Fri, 04 May 2018 12:14:27 -0700 From: John Baldwin <jhb@freebsd.org> To: Peter Grehan <grehan@freebsd.org> Cc: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: Re: svn commit: r333230 - head/sys/dev/pci Message-ID: <2195289.fHIjn0Ke9p@ralph.baldwin.cx> In-Reply-To: <201805032251.w43MpihV067395@repo.freebsd.org> References: <201805032251.w43MpihV067395@repo.freebsd.org>
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On Thursday, May 03, 2018 10:51:44 PM Peter Grehan wrote: > Author: grehan > Date: Thu May 3 22:51:44 2018 > New Revision: 333230 > URL: https://svnweb.freebsd.org/changeset/base/333230 > > Log: > Allow PCI VGA devices to be detached. > > GPUs often have a VGA PCI class code and are probed/attached > by the VGA driver. Allow them to be detached so they can > be presented as passthru devices to VM guests. > > Submitted by: mmacy > Reviewed by: jhb, imp, rgrimes > MFC after: 3 weeks > Differential Revision: https://reviews.freebsd.org/D15269 I forgout about this earlier, sorry. We probably should also explicitly release any resources cached in sc->vga_bios and sc->vga_bars. In theory they should be clear by the time bus_generic_detach finishes, but perhaps we should walk the resources and whine if they aren't released and then release them. -- John Baldwin
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