On Wed, Aug 17, 2016 at 04:26:54PM +0200, Andrew Jones wrote:
> And now for bad news. I imported your branch and tested it. It works
> great over TCG, but hits the "No PCI resource found for a device"
> assert when running with KVM on an AArch64 server. I've only tried on
> a mustang so far.
Unlike TCG, KVM on an AArch64 reports pci-testdev's BAR #4 value of 0xC.
It denotes to 64 bit prefetch memory, which is absent. What is more,
BAR #4 is not implemented in pci-testdev. Only two BARs are expected
(qemu hw/misc/pci-testdev.c):
pci_register_bar(pci_dev, 0, PCI_BASE_ADDRESS_SPACE_MEMORY, &d->mmio);
pci_register_bar(pci_dev, 1, PCI_BASE_ADDRESS_SPACE_IO, &d->portio);
So the assert sounds about right and the question is why BAR #4 is there.
> Thanks,
> drew
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