[RFC/RFT PATCH 0/3] arm64: KVM: work around incoherency with uncached guest mappings

[Peter Maydell]

On 5 March 2015 at 20:04, Catalin Marinas <catalin.marinas at arm.com> wrote:
> On Thu, Mar 05, 2015 at 11:12:22AM +0100, Paolo Bonzini wrote:
>> On 04/03/2015 18:28, Catalin Marinas wrote:
>> >> > Can you add that property to the device tree for PCI devices too?
>> >
>> > Yes but not with mainline yet:
>> >
>> > http://thread.gmane.org/gmane.linux.kernel.iommu/8935
>> >
>> > We can add the property at the PCI host bridge level (with the drawback
>> > that it covers all the PCI devices), like here:
>>
>> Even covering all PCI devices is not enough if we want to support device
>> assignment of PCI host devices.
>
> Can we not have another PCI bridge node in the DT for the host device
> assignments?

I'd hate to have to do that. PCI should be entirely probeable
given that we tell the guest where the host bridge is, that's
one of its advantages.

-- PMM