From mboxrd@z Thu Jan 1 00:00:00 1970 Received: with ECARTIS (v1.0.0; list linux-mips); Wed, 21 May 2014 13:46:22 +0200 (CEST) Received: from mailapp01.imgtec.com ([195.59.15.196]:43469 "EHLO mailapp01.imgtec.com" rhost-flags-OK-OK-OK-OK) by eddie.linux-mips.org with ESMTP id S6837162AbaEULqTZYEGX (ORCPT ); Wed, 21 May 2014 13:46:19 +0200 Received: from KLMAIL01.kl.imgtec.org (unknown [192.168.5.35]) by Websense Email Security Gateway with ESMTPS id 3F5B878D7D4DA; Wed, 21 May 2014 12:46:10 +0100 (IST) Received: from KLMAIL02.kl.imgtec.org (192.168.5.97) by KLMAIL01.kl.imgtec.org (192.168.5.35) with Microsoft SMTP Server (TLS) id 14.3.181.6; Wed, 21 May 2014 12:46:12 +0100 Received: from LEMAIL01.le.imgtec.org (192.168.152.62) by klmail02.kl.imgtec.org (192.168.5.97) with Microsoft SMTP Server (TLS) id 14.3.181.6; Wed, 21 May 2014 12:46:12 +0100 Received: from [192.168.154.101] (192.168.154.101) by LEMAIL01.le.imgtec.org (192.168.152.62) with Microsoft SMTP Server (TLS) id 14.3.174.1; Wed, 21 May 2014 12:46:11 +0100 Message-ID: <537C913C.1060903@imgtec.com> Date: Wed, 21 May 2014 12:42:52 +0100 From: James Hogan User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:24.0) Gecko/20100101 Thunderbird/24.5.0 MIME-Version: 1.0 To: Andreas Herrmann , CC: David Daney , Ralf Baechle , , David Daney Subject: Re: [PATCH 11/15] MIPS: paravirt: Add pci controller for virtio References: <1400597236-11352-1-git-send-email-andreas.herrmann@caviumnetworks.com> <1400597236-11352-12-git-send-email-andreas.herrmann@caviumnetworks.com> In-Reply-To: <1400597236-11352-12-git-send-email-andreas.herrmann@caviumnetworks.com> X-Enigmail-Version: 1.6 Content-Type: text/plain; charset="ISO-8859-1" Content-Transfer-Encoding: 7bit X-Originating-IP: [192.168.154.101] Return-Path: X-Envelope-To: <"|/home/ecartis/ecartis -s linux-mips"> (uid 0) X-Orcpt: rfc822;linux-mips@linux-mips.org Original-Recipient: rfc822;linux-mips@linux-mips.org X-archive-position: 40214 X-ecartis-version: Ecartis v1.0.0 Sender: linux-mips-bounce@linux-mips.org Errors-to: linux-mips-bounce@linux-mips.org X-original-sender: james.hogan@imgtec.com Precedence: bulk List-help: List-unsubscribe: List-software: Ecartis version 1.0.0 List-Id: linux-mips X-List-ID: linux-mips List-subscribe: List-owner: List-post: List-archive: X-list: linux-mips On 20/05/14 15:47, Andreas Herrmann wrote: > From: David Daney > > Signed-off-by: David Daney > Signed-off-by: Andreas Herrmann > --- > arch/mips/Kconfig | 1 + > arch/mips/paravirt/Kconfig | 6 ++ > arch/mips/pci/Makefile | 2 +- > arch/mips/pci/pci-virtio-guest.c | 140 ++++++++++++++++++++++++++++++++++++++ > 4 files changed, 148 insertions(+), 1 deletion(-) > create mode 100644 arch/mips/paravirt/Kconfig > create mode 100644 arch/mips/pci/pci-virtio-guest.c If I understand correctly this just drives a simple PCI controller for a PCI bus that a virtio device happens to be usually plugged in to, yeh? It sounds like it would make sense to take advantage of Will Deacon's recent efforts to make a generic pci controller driver for this sort of thing which specifically mentions emulation by kvmtool? Is it effectively the same PCI controller that is being emulated? http://lists.infradead.org/pipermail/linux-arm-kernel/2014-February/thread.html#233491 http://lists.infradead.org/pipermail/linux-arm-kernel/2014-February/233491.html http://lists.infradead.org/pipermail/linux-arm-kernel/2014-February/233490.html Cheers James From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mailapp01.imgtec.com ([195.59.15.196]:43469 "EHLO mailapp01.imgtec.com" rhost-flags-OK-OK-OK-OK) by eddie.linux-mips.org with ESMTP id S6837162AbaEULqTZYEGX (ORCPT ); Wed, 21 May 2014 13:46:19 +0200 Message-ID: <537C913C.1060903@imgtec.com> Date: Wed, 21 May 2014 12:42:52 +0100 From: James Hogan MIME-Version: 1.0 Subject: Re: [PATCH 11/15] MIPS: paravirt: Add pci controller for virtio References: <1400597236-11352-1-git-send-email-andreas.herrmann@caviumnetworks.com> <1400597236-11352-12-git-send-email-andreas.herrmann@caviumnetworks.com> In-Reply-To: <1400597236-11352-12-git-send-email-andreas.herrmann@caviumnetworks.com> Content-Type: text/plain; charset="ISO-8859-1" Content-Transfer-Encoding: 7bit Return-Path: Sender: linux-mips-bounce@linux-mips.org Errors-to: linux-mips-bounce@linux-mips.org List-help: List-unsubscribe: List-software: Ecartis version 1.0.0 List-subscribe: List-owner: List-post: List-archive: To: Andreas Herrmann , linux-mips@linux-mips.org Cc: David Daney , Ralf Baechle , kvm@vger.kernel.org, David Daney Message-ID: <20140521114252.-dRJtwRjwpu5pT_0ZWWbtYhCMhSUQzQXcp7u41AeohA@z> On 20/05/14 15:47, Andreas Herrmann wrote: > From: David Daney > > Signed-off-by: David Daney > Signed-off-by: Andreas Herrmann > --- > arch/mips/Kconfig | 1 + > arch/mips/paravirt/Kconfig | 6 ++ > arch/mips/pci/Makefile | 2 +- > arch/mips/pci/pci-virtio-guest.c | 140 ++++++++++++++++++++++++++++++++++++++ > 4 files changed, 148 insertions(+), 1 deletion(-) > create mode 100644 arch/mips/paravirt/Kconfig > create mode 100644 arch/mips/pci/pci-virtio-guest.c If I understand correctly this just drives a simple PCI controller for a PCI bus that a virtio device happens to be usually plugged in to, yeh? It sounds like it would make sense to take advantage of Will Deacon's recent efforts to make a generic pci controller driver for this sort of thing which specifically mentions emulation by kvmtool? Is it effectively the same PCI controller that is being emulated? http://lists.infradead.org/pipermail/linux-arm-kernel/2014-February/thread.html#233491 http://lists.infradead.org/pipermail/linux-arm-kernel/2014-February/233491.html http://lists.infradead.org/pipermail/linux-arm-kernel/2014-February/233490.html Cheers James