Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752545AbaKLKjD (ORCPT ); Wed, 12 Nov 2014 05:39:03 -0500 Received: from mail-vc0-f175.google.com ([209.85.220.175]:65307 "EHLO mail-vc0-f175.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750850AbaKLKjA (ORCPT ); Wed, 12 Nov 2014 05:39:00 -0500 MIME-Version: 1.0 In-Reply-To: References: <1414433284-31719-1-git-send-email-a.motakis@virtualopensystems.com> <1414433284-31719-4-git-send-email-a.motakis@virtualopensystems.com> Date: Wed, 12 Nov 2014 18:38:58 +0800 Message-ID: Subject: Re: [PATCH v9 03/19] vfio: platform: add the VFIO PLATFORM module to Kconfig From: Hongbo Zhang To: "Bharat.Bhushan@freescale.com" Cc: Antonios Motakis , "open list:VFIO DRIVER" , "will.deacon@arm.com" , "alex.williamson@redhat.com" , open list , "iommu@lists.linux-foundation.org" , "tech@virtualopensystems.com" , "kvmarm@lists.cs.columbia.edu" Content-Type: text/plain; charset=UTF-8 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 12 November 2014 18:05, Bharat.Bhushan@freescale.com wrote: > Hi, > > > > This is not yet supported on Freescale PowerPC. I am still in process of > upstreaming the FSL PAMU specific patches for same. > > Initial plan is to test with PCIe devices and then with Platform devices. > I see there is already driver/iommu/fsl_pamu.c, doesn't it work? Could you explain briefly what is wrong? I've heard that the vfio pci works on powerpc platforms Thanks. > > > Thanks > > -Bharat > > > > From: kvmarm-bounces@lists.cs.columbia.edu > [mailto:kvmarm-bounces@lists.cs.columbia.edu] On Behalf Of Hongbo Zhang > Sent: Wednesday, November 12, 2014 3:08 PM > To: Antonios Motakis > Cc: open list:VFIO DRIVER; will.deacon@arm.com; alex.williamson@redhat.com; > open list; iommu@lists.linux-foundation.org; tech@virtualopensystems.com; > kvmarm@lists.cs.columbia.edu > Subject: Re: [PATCH v9 03/19] vfio: platform: add the VFIO PLATFORM module > to Kconfig > > > > > > > > On 28 October 2014 02:07, Antonios Motakis > wrote: > > Enable building the VFIO PLATFORM driver that allows to use Linux platform > devices with VFIO. > > Signed-off-by: Antonios Motakis > --- > drivers/vfio/Kconfig | 1 + > drivers/vfio/Makefile | 1 + > drivers/vfio/platform/Kconfig | 9 +++++++++ > drivers/vfio/platform/Makefile | 4 ++++ > 4 files changed, 15 insertions(+) > create mode 100644 drivers/vfio/platform/Kconfig > create mode 100644 drivers/vfio/platform/Makefile > > diff --git a/drivers/vfio/Kconfig b/drivers/vfio/Kconfig > index a0abe04..962fb80 100644 > --- a/drivers/vfio/Kconfig > +++ b/drivers/vfio/Kconfig > @@ -27,3 +27,4 @@ menuconfig VFIO > If you don't know what to do here, say N. > > source "drivers/vfio/pci/Kconfig" > +source "drivers/vfio/platform/Kconfig" > diff --git a/drivers/vfio/Makefile b/drivers/vfio/Makefile > index 0b035b1..dadf0ca 100644 > --- a/drivers/vfio/Makefile > +++ b/drivers/vfio/Makefile > @@ -3,3 +3,4 @@ obj-$(CONFIG_VFIO_IOMMU_TYPE1) += vfio_iommu_type1.o > obj-$(CONFIG_VFIO_IOMMU_SPAPR_TCE) += vfio_iommu_spapr_tce.o > obj-$(CONFIG_VFIO_SPAPR_EEH) += vfio_spapr_eeh.o > obj-$(CONFIG_VFIO_PCI) += pci/ > +obj-$(CONFIG_VFIO_PLATFORM) += platform/ > diff --git a/drivers/vfio/platform/Kconfig b/drivers/vfio/platform/Kconfig > new file mode 100644 > index 0000000..c51af17 > --- /dev/null > +++ b/drivers/vfio/platform/Kconfig > @@ -0,0 +1,9 @@ > +config VFIO_PLATFORM > + tristate "VFIO support for platform devices" > + depends on VFIO && EVENTFD && ARM > > > > Hi Antonios, > > Is this only for ARM? how about X86 and PowerPC? > > On Freescale's PowerPC platform, the IOMMU is called PAMU (Peripheral Access > Management Unit), and I am trying to use this VFIO framework on it. > > > > + help > + Support for platform devices with VFIO. This is required to make > + use of platform devices present on the system using the VFIO > + framework. > + > + If you don't know what to do here, say N. > diff --git a/drivers/vfio/platform/Makefile b/drivers/vfio/platform/Makefile > new file mode 100644 > index 0000000..279862b > --- /dev/null > +++ b/drivers/vfio/platform/Makefile > @@ -0,0 +1,4 @@ > + > +vfio-platform-y := vfio_platform.o vfio_platform_common.o > + > +obj-$(CONFIG_VFIO_PLATFORM) += vfio-platform.o > -- > 2.1.1 > > -- > To unsubscribe from this list: send the line "unsubscribe linux-kernel" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html > Please read the FAQ at http://www.tux.org/lkml/ > > -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/