Re: [Qemu-devel] [PATCH 0/4] ARM: Add support for a generic PCI Express host bridge

[Claudio Fontana <claudio.fontana@huawei.com>]

On 06.01.2015 17:03, Alexander Graf wrote:
> Linux implements a nice binding to describe a "generic" PCI Express host bridge
> using only device tree.
> 
> This patch set adds enough emulation logic to expose the parts that are
> "generic" as a simple sysbus device and maps it into ARM's virt machine.
> 
> With this patch set, we can finally spawn PCI devices on ARM VMs. I was able
> to have a fully DRM enabled virtual machine with VGA, e1000 and XHCI (for
> keyboard and mouse) up and working.
> 
> It's only a small step for QEMU, but a big step for ARM VM's usability.
> 
> 
> Happy new year!
> 
> Alexander Graf (4):
>   pci: Split pcie_host_mmcfg_map()
>   pci: Add generic PCIe host bridge
>   arm: Add PCIe host bridge in virt machine
>   arm: enable Bochs PCI VGA
> 
>  default-configs/arm-softmmu.mak |   3 +
>  hw/arm/virt.c                   |  83 +++++++++++++++++++--
>  hw/pci-host/Makefile.objs       |   1 +
>  hw/pci-host/gpex.c              | 156 ++++++++++++++++++++++++++++++++++++++++
>  hw/pci/pcie_host.c              |   9 ++-
>  include/hw/pci-host/gpex.h      |  56 +++++++++++++++
>  include/hw/pci/pcie_host.h      |   1 +
>  7 files changed, 302 insertions(+), 7 deletions(-)
>  create mode 100644 hw/pci-host/gpex.c
>  create mode 100644 include/hw/pci-host/gpex.h
> 

Tested with a modified OSv guest on AArch64 using INTx interrupt method.

Tested-by: Claudio Fontana <claudio.fontana@huawei.com>