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

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.


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