[libvirt] [PING: PATCH v4 0/3] Allow PCI virtio on ARM "virt" machine
Pavel Fedin
p.fedin at samsung.com
Wed Jul 15 06:41:33 UTC 2015
Knock-knock!!!
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: Thursday, July 09, 2015 12:11 PM
> To: libvir-list at redhat.com
> Cc: Peter Krempa
> Subject: [libvirt] [PATCH v4 0/3] 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 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 (3):
> Introduce QEMU_CAPS_OBJECT_GPEX
> Add PCI-Express root to ARM virt machine
> Build correct command line for PCI NICs on ARM
>
> src/qemu/qemu_capabilities.c | 2 ++
> src/qemu/qemu_capabilities.h | 1 +
> src/qemu/qemu_command.c | 3 ++-
> src/qemu/qemu_domain.c | 17 +++++++++++++----
> 4 files changed, 18 insertions(+), 5 deletions(-)
>
> --
> 1.9.5.msysgit.0
>
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