Re: [Qemu-devel] address order of virtio-mmio devices

[Peter Maydell]

On 30 January 2015 at 11:39, Laszlo Ersek <address@hidden> wrote:
> On 01/30/15 11:54, Peter Maydell wrote:
>> On 30 January 2015 at 10:48, Daniel P. Berrange <address@hidden> wrote:
>>> Long term though it will be much better of AArch64 would just do PCI
>>> instead of MMIO bus. Then we have proper device addressing which we
>>> can control in a predictable manner that will be stable across hotplug
>>> and unplug and migration.  I hear there's work on PCI for AArch64 but
>>> is there a near term ETA yet ?
>>
>> I need to review Alex's v3 patchset; if it doesn't have any issues
>> it'll probably go into target-arm.next next week and hit mainline
>> shortly after that.
>
> (And then a root bridge driver for it will be necessary in edk2. (I'm
> unsure if the guest kernel driver is already being worked on.))

Guest kernel doesn't need any particular support because it uses
the generic pcie-driven-by-device-tree. For 64-bit ARM there's some
minor missing kernel cleanup/patch, but for 32-bit it works as is.
[see Alex's notes in patch 3/4 for detail.]

-- PMM