On 2016-07-23 10:12, David Kiarie wrote: > Hello all, > > I, working on AMD IOMMU interrupt remapping would like to ask some > questions on Qemu IOAPIC id. > > I currently have a problem in that Linux AMD IOMMU driver expects at least > one IOAPIC on the chipset to have ID 0xa0 while Qemu IOAPIC id is always 0. > I am faced with two options > -Change IOAPIC id so that it always matches what Linux AMD IOMMU driver > expects. In this case I am not sure which problems I could encounter with > this approach. > -Have a way to configure IOAPIC ID based on emulated IOMMU. > > I prefer the first approach since it's quite simple but would like to hear > other opinions regarding this issue. > > David. >
Ping on this question by David: If we can consolidate over AMD's IOAPIC ID now, before releasing 4.7 (later changes would be guest visible), we won't have to add a special case for the AMD IOMMU later. Jan
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