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Re: [Qemu-devel] [RESEND PATCH v5 4/4] vfio: Enable vfio-pci and mark su
From: |
Anthony Liguori |
Subject: |
Re: [Qemu-devel] [RESEND PATCH v5 4/4] vfio: Enable vfio-pci and mark supported |
Date: |
Wed, 26 Sep 2012 08:50:34 -0500 |
User-agent: |
Notmuch/0.13.2+93~ged93d79 (http://notmuchmail.org) Emacs/23.3.1 (x86_64-pc-linux-gnu) |
Alex Williamson <address@hidden> writes:
> Enabled for all softmmu guests supporting PCI on Linux hosts. Note
> that currently only x86 hosts have the kernel side VFIO IOMMU support
> for this. PPC (g3beige) is the only non-x86 guest known to work.
> ARM (veratile) hangs in firmware, others untested.
>
> Signed-off-by: Alex Williamson <address@hidden>
> Acked-by: Michael S. Tsirkin <address@hidden>
> ---
>
> MAINTAINERS | 5 +++++
> configure | 6 ++++++
> hw/Makefile.objs | 3 ++-
> 3 files changed, 13 insertions(+), 1 deletion(-)
>
> diff --git a/MAINTAINERS b/MAINTAINERS
> index 25733fc..29aac4f 100644
> --- a/MAINTAINERS
> +++ b/MAINTAINERS
> @@ -474,6 +474,11 @@ M: Gerd Hoffmann <address@hidden>
> S: Maintained
> F: hw/usb*
>
> +VFIO
> +M: Alex Williamson <address@hidden>
> +S: Supported
> +F: hw/vfio*
> +
> vhost
> M: Michael S. Tsirkin <address@hidden>
> S: Supported
> diff --git a/configure b/configure
> index 1b86517..c2c0d4f 100755
> --- a/configure
> +++ b/configure
> @@ -165,6 +165,7 @@ attr=""
> libattr=""
> xfs=""
>
> +vfio_pci="no"
> vhost_net="no"
> kvm="no"
> gprof="no"
> @@ -509,6 +510,7 @@ Haiku)
> usb="linux"
> kvm="yes"
> vhost_net="yes"
> + vfio_pci="yes"
> if [ "$cpu" = "i386" -o "$cpu" = "x86_64" ] ; then
> audio_possible_drivers="$audio_possible_drivers fmod"
> fi
> @@ -3174,6 +3176,7 @@ echo "libiscsi support $libiscsi"
> echo "build guest agent $guest_agent"
> echo "seccomp support $seccomp"
> echo "coroutine backend $coroutine_backend"
> +echo "VFIO PCI support $vfio_pci"
>
> if test "$sdl_too_old" = "yes"; then
> echo "-> Your SDL version is too old - please upgrade to have SDL support"
> @@ -3911,6 +3914,9 @@ if test "$target_softmmu" = "yes" ; then
> if test "$smartcard_nss" = "yes" ; then
> echo "subdir-$target: subdir-libcacard" >> $config_host_mak
> fi
> + if test "$vfio_pci" = "yes" ; then
> + echo "CONFIG_VFIO_PCI=y" >> $config_target_mak
> + fi
> case "$target_arch2" in
> i386|x86_64)
> echo "CONFIG_HAVE_CORE_DUMP=y" >> $config_target_mak
> diff --git a/hw/Makefile.objs b/hw/Makefile.objs
> index 6dfebd2..7f8d3e4 100644
> --- a/hw/Makefile.objs
> +++ b/hw/Makefile.objs
> @@ -198,7 +198,8 @@ obj-$(CONFIG_VGA) += vga.o
> obj-$(CONFIG_SOFTMMU) += device-hotplug.o
> obj-$(CONFIG_XEN) += xen_domainbuild.o xen_machine_pv.o
>
> -# Inter-VM PCI shared memory
> +# Inter-VM PCI shared memory & VFIO PCI device assignment
> ifeq ($(CONFIG_PCI), y)
> obj-$(CONFIG_KVM) += ivshmem.o
> +obj-$(CONFIG_VFIO_PCI) += vfio_pci.o
Why not just make this
obj-$(CONFIG_LINUX) += vfio_pci.o
?
All you're doing in configure is setting CONFIG_VFIO_PCI if
CONFIG_LINUX.
Regards,
Anthony Liguori
> endif
>
> --
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[Qemu-devel] [RESEND PATCH v5 3/4] vfio: vfio-pci device assignment driver, Alex Williamson, 2012/09/25