Re: [Xen-devel] Requesting for freeze exception for ARM/ITS patches

[Julien Grall <julien.grall@xxxxxxxxxx>]

Hi,

On 11/07/2015 11:21, Ian Campbell wrote:
> On Sat, 2015-07-11 at 09:18 +0200, Julien Grall wrote:
> > > As I explained in my reply to Jan I think this is underselling it a
> > > little, since AIUI it should make it possible to boot Xen on ThunderX
> > > and do useful things (like run guests).
> > Well, PCI are able to support both legacy interrupt and MSI. If there is
> > no MSI, the PCI will use the former. The performance may be "poor" but
> > it will at least boot Xen on ThunderX and creating guest.
> AIUI ThunderX's on-SoC PCI devices do not provide legacy PCI INTX
> interrupts, only MSI/LPI interrupts. Perhaps someone from Cavium can
> confirm whether or not this is the case.
I haven't found any PCI controller in the Linux upstream device tree 
bindings of cavium. Although I found a thread for 2014 about it [1].
As the thread is quite old now, can some from Cavium confirm this will 
be valid on the production hardware?
Regards,

[1] https://lkml.org/lkml/2014/9/25/73

--
Julien Grall

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