[libvirt] PING: [PATCH v5 0/4] qemu: Allow PCI virtio on ARM "virt" machine
Pavel Fedin
p.fedin at samsung.com
Mon Jul 27 11:14:59 UTC 2015
PING
Kind regards,
Pavel Fedin
Expert Engineer
Samsung Electronics Research center Russia
> -----Original Message-----
> From: libvir-list-bounces at redhat.com [mailto:libvir-list-bounces at redhat.com] On Behalf Of Pavel
Fedin
> Sent: Friday, July 17, 2015 2:28 PM
> To: libvir-list at redhat.com
> Cc: Peter Krempa
> Subject: [libvirt] [PATCH v5 0/4] qemu: Allow PCI virtio on ARM "virt" machine
>
> Virt machine in qemu since v2.3.0 has PCI generic host controller, and
> can use PCI devices. This provides performance improvement as well as
> vhost-net with irqfd support for virtio-net. However libvirt currently
> does not allow ARM virt machine to have PCI devices. This patchset adds
> the necessary support.
>
> Changes since v4:
> - Rebased onto current master
> - Added possibility to plug virtio-net-pci adapter directly into PCIe bus.
> This is necessary for irqfds to work in qemu.
> Changes since v3:
> - Capability is based not on qemu version but on support of "gpex-pcihost"
> device by qemu
> - Added a workaround, allowing to pass "make check". The problem is that
> test suite does not build capabilities cache. Unfortunately this means
> that correct unit-test for the new functionality currently cannot be
> written. Test suite framework needs to be improved.
> Changes since v2:
> Complete rework, use different approach
> - Correctly model PCI Express bus on the machine. It is now possible to
> explicitly specify <address-type='pci'> with attributes. This allows to
> attach not only virtio, but any other PCI device to the model.
> - Default is not changed and still mmio, for backwards compatibility with
> existing installations. PCI bus has to be explicitly specified.
> - Check for the capability in correct place, in v2 it actually did not
> work
> Changes since v1:
> - Added capability based on qemu version number
> - Recognize also "virt-" prefix
>
> Pavel Fedin (4):
> qemu: Introduce QEMU_CAPS_OBJECT_GPEX
> Add PCI-Express root to ARM virt machine
> Build correct command line for PCI NICs on ARM
> Allow to plug virtio-net-pci into PCIe slot
>
> src/qemu/qemu_capabilities.c | 10 ++++++++++
> src/qemu/qemu_capabilities.h | 1 +
> src/qemu/qemu_command.c | 11 ++++++++++-
> src/qemu/qemu_domain.c | 17 +++++++++++++----
> 4 files changed, 34 insertions(+), 5 deletions(-)
>
> --
> 1.9.5.msysgit.0
>
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