On Fri, Nov 08, 2024 at 04:26:20PM +0000, Ho, Nelson via wrote: > Hi Edgar, > > I am working on bringing up the Wind River Helix hypervisor on the > xlnx-versal-virt machine, which expects to find MMU-500 SMMU where it lives > on the Versal SoC. I understand the -virt machine is not intended to fully > emulate Versal SoC. > > I found an implementation of the MMU-500 on the Xilinx QEMU fork, and am > curious why this was not upstreamed, and if you know what issues I might > encounter if I try to integrate this MMU-500 implementation into the > versal-virt machine? >
Hi Nelson, There's no particular reason other than lack of time. The tricky parts will likely be to hook it up without the device-tree bindings that Xilinx uses to create machines. Perhaps also how we use Memory Regions to describe the DMA ports towards DMA masters and towards SMMU TBUs in a non-PCI specific manner. Cheers, Edgar
