From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751339AbbKJF3k (ORCPT ); Tue, 10 Nov 2015 00:29:40 -0500 Received: from gate.crashing.org ([63.228.1.57]:41275 "EHLO gate.crashing.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751131AbbKJF3i (ORCPT ); Tue, 10 Nov 2015 00:29:38 -0500 Message-ID: <1447133316.31884.67.camel@kernel.crashing.org> Subject: Re: [PATCH v4 0/6] virtio core DMA API conversion From: Benjamin Herrenschmidt To: Andy Lutomirski Cc: Andy Lutomirski , David Woodhouse , "linux-kernel@vger.kernel.org" , "David S. Miller" , sparclinux@vger.kernel.org, Joerg Roedel , Christian Borntraeger , Cornelia Huck , Sebastian Ott , Paolo Bonzini , Christoph Hellwig , KVM , Martin Schwidefsky , linux-s390 , Linux Virtualization , "Michael S. Tsirkin" Date: Tue, 10 Nov 2015 16:28:36 +1100 In-Reply-To: References: <20151109133624-mutt-send-email-mst@redhat.com> <1447109937.31884.42.camel@kernel.crashing.org> <1447121076.31884.61.camel@kernel.crashing.org> Content-Type: text/plain; charset="UTF-8" X-Mailer: Evolution 3.18.1 (3.18.1-1.fc23) Mime-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, 2015-11-09 at 18:18 -0800, Andy Lutomirski wrote: > > /* Qumranet donated their vendor ID for devices 0x1000 thru 0x10FF. > */ > static const struct pci_device_id virtio_pci_id_table[] = { >         { PCI_DEVICE(0x1af4, PCI_ANY_ID) }, >         { 0 } > }; > > Can we match on that range? We can, but the problem remains, how do we differenciate an existing device that does bypass vs. a newer one that needs the IOMMU and thus doesn't have the new "bypass" property in the device-tree. Cheers, Ben. From mboxrd@z Thu Jan 1 00:00:00 1970 From: Benjamin Herrenschmidt Subject: Re: [PATCH v4 0/6] virtio core DMA API conversion Date: Tue, 10 Nov 2015 16:28:36 +1100 Message-ID: <1447133316.31884.67.camel@kernel.crashing.org> References: <20151109133624-mutt-send-email-mst@redhat.com> <1447109937.31884.42.camel@kernel.crashing.org> <1447121076.31884.61.camel@kernel.crashing.org> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: In-Reply-To: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: virtualization-bounces@lists.linux-foundation.org Errors-To: virtualization-bounces@lists.linux-foundation.org List-Archive: List-Post: To: Andy Lutomirski Cc: Joerg Roedel , KVM , linux-s390 , "Michael S. Tsirkin" , Sebastian Ott , "linux-kernel@vger.kernel.org" , Christoph Hellwig , Christian Borntraeger , Andy Lutomirski , sparclinux@vger.kernel.org, Paolo Bonzini , Linux Virtualization , David Woodhouse , "David S. Miller" , Martin Schwidefsky List-ID: T24gTW9uLCAyMDE1LTExLTA5IGF0IDE4OjE4IC0wODAwLCBBbmR5IEx1dG9taXJza2kgd3JvdGU6 Cj4gCj4gLyogUXVtcmFuZXQgZG9uYXRlZCB0aGVpciB2ZW5kb3IgSUQgZm9yIGRldmljZXMgMHgx MDAwIHRocnUgMHgxMEZGLgo+ICovCj4gc3RhdGljIGNvbnN0IHN0cnVjdCBwY2lfZGV2aWNlX2lk IHZpcnRpb19wY2lfaWRfdGFibGVbXSA9IHsKPiDCoMKgwqDCoMKgwqDCoCB7IFBDSV9ERVZJQ0Uo MHgxYWY0LCBQQ0lfQU5ZX0lEKSB9LAo+IMKgwqDCoMKgwqDCoMKgIHsgMCB9Cj4gfTsKPiAKPiBD YW4gd2UgbWF0Y2ggb24gdGhhdCByYW5nZT8KCldlIGNhbiwgYnV0IHRoZSBwcm9ibGVtIHJlbWFp bnMsIGhvdyBkbyB3ZSBkaWZmZXJlbmNpYXRlIGFuIGV4aXN0aW5nCmRldmljZSB0aGF0IGRvZXMg YnlwYXNzIHZzLiBhIG5ld2VyIG9uZSB0aGF0IG5lZWRzIHRoZSBJT01NVSBhbmQgdGh1cwpkb2Vz bid0IGhhdmUgdGhlIG5ldyAiYnlwYXNzIiBwcm9wZXJ0eSBpbiB0aGUgZGV2aWNlLXRyZWUuCgpD aGVlcnMsCkJlbi4KCl9fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fClZpcnR1YWxpemF0aW9uIG1haWxpbmcgbGlzdApWaXJ0dWFsaXphdGlvbkBsaXN0cy5saW51 eC1mb3VuZGF0aW9uLm9yZwpodHRwczovL2xpc3RzLmxpbnV4Zm91bmRhdGlvbi5vcmcvbWFpbG1h bi9saXN0aW5mby92aXJ0dWFsaXphdGlvbg== From mboxrd@z Thu Jan 1 00:00:00 1970 From: Benjamin Herrenschmidt Date: Tue, 10 Nov 2015 05:28:36 +0000 Subject: Re: [PATCH v4 0/6] virtio core DMA API conversion Message-Id: <1447133316.31884.67.camel@kernel.crashing.org> List-Id: References: <20151109133624-mutt-send-email-mst@redhat.com> <1447109937.31884.42.camel@kernel.crashing.org> <1447121076.31884.61.camel@kernel.crashing.org> In-Reply-To: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 8bit To: Andy Lutomirski Cc: Joerg Roedel , KVM , linux-s390 , "Michael S. Tsirkin" , Sebastian Ott , "linux-kernel@vger.kernel.org" , Christoph Hellwig , Christian Borntraeger , Andy Lutomirski , sparclinux@vger.kernel.org, Paolo Bonzini , Linux Virtualization , David Woodhouse , "David S. Miller" , Martin Schwidefsky On Mon, 2015-11-09 at 18:18 -0800, Andy Lutomirski wrote: > > /* Qumranet donated their vendor ID for devices 0x1000 thru 0x10FF. > */ > static const struct pci_device_id virtio_pci_id_table[] = { >         { PCI_DEVICE(0x1af4, PCI_ANY_ID) }, >         { 0 } > }; > > Can we match on that range? We can, but the problem remains, how do we differenciate an existing device that does bypass vs. a newer one that needs the IOMMU and thus doesn't have the new "bypass" property in the device-tree. Cheers, Ben.