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SubjectRe: [PATCH v9 03/19] vfio: platform: add the VFIO PLATFORM module to Kconfig
From
On 12 November 2014 18:05, Bharat.Bhushan@freescale.com
<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
> <a.motakis@virtualopensystems.com> wrote:
>
> Enable building the VFIO PLATFORM driver that allows to use Linux platform
> devices with VFIO.
>
> Signed-off-by: Antonios Motakis <a.motakis@virtualopensystems.com>
> ---
> 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
>
> --
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