From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:50589) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1X2NOJ-0000YZ-Px for qemu-devel@nongnu.org; Wed, 02 Jul 2014 12:28:24 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1X2NOA-0007fA-2a for qemu-devel@nongnu.org; Wed, 02 Jul 2014 12:28:15 -0400 Received: from mail-qa0-x234.google.com ([2607:f8b0:400d:c00::234]:57412) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1X2NO9-0007eG-Vj for qemu-devel@nongnu.org; Wed, 02 Jul 2014 12:28:06 -0400 Received: by mail-qa0-f52.google.com with SMTP id w8so9225508qac.11 for ; Wed, 02 Jul 2014 09:28:05 -0700 (PDT) Sender: Paolo Bonzini Message-ID: <53B4330E.1090409@redhat.com> Date: Wed, 02 Jul 2014 18:27:58 +0200 From: Paolo Bonzini MIME-Version: 1.0 References: <20140630090511.GB15777@redhat.com> <53B1BAF9.6040800@citrix.com> <20140701053907.GA6108@redhat.com> <20140701170206.GB7640@redhat.com> <53B2F238.7000009@citrix.com> <53B3EDF5.4000802@redhat.com> <20140702140033.GG19068@laptop.dumpdata.com> <53B41C27.4030706@redhat.com> <20140702162337.GB32380@laptop.dumpdata.com> In-Reply-To: <20140702162337.GB32380@laptop.dumpdata.com> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Subject: Re: [Qemu-devel] ResettRe: [Xen-devel] [v5][PATCH 0/5] xen: add Intel IGD passthrough support List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Konrad Rzeszutek Wilk , daniel.vetter@ffwll.ch, jani.nikula@linux.intel.com, airlied@linux.ie, intel-gfx@lists.freedesktop.org Cc: "peter.maydell@linaro.org" , "xen-devel@lists.xensource.com" , Ross Philipson , "Michael S. Tsirkin" , "qemu-devel@nongnu.org" , "Kelly.Zytaruk@amd.com" , Anthony Perard , Stefano Stabellini , "anthony@codemonkey.ws" , "yang.z.zhang@intel.com" , "Chen, Tiejun" Il 02/07/2014 18:23, Konrad Rzeszutek Wilk ha scritto: > diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c > index 651e65e..03f2829 100644 > --- a/drivers/gpu/drm/i915/i915_drv.c > +++ b/drivers/gpu/drm/i915/i915_drv.c > @@ -433,6 +433,8 @@ void intel_detect_pch(struct drm_device *dev) > unsigned short id = pch->device & INTEL_PCH_DEVICE_ID_MASK; > dev_priv->pch_id = id; > > + if (pch->subsystem_vendor == PCI_VENDOR_ID_XEN) > + id = pch->device & INTEL_PCH_DEVICE_ID_MASK; Actually you could look at *dev*'s subsystem IDs and skip the pch lookup completely. Paolo > if (id == INTEL_PCH_IBX_DEVICE_ID_TYPE) { > dev_priv->pch_type = PCH_IBX; > DRM_DEBUG_KMS("Found Ibex Peak PCH\n"); >> >