On 2011-05-11 13:23, Avi Kivity wrote: > On 05/09/2011 06:27 PM, Jan Kiszka wrote: >> To avoid having to deal with legacy I/O forwarding, we started with a >> dual adapter setup in the hope to leave the primary guest adapter at >> know-to-work cirrus-vga. But already in a native setup with on-board >> primary + NVIDIA secondary, the NVIDIA Windows drivers refused to talk >> to its hardware in this constellation. > > IIRC one issue with nvidia is that it uses non-BAR registers to move its > PCI BAR around, which causes cpu writes to hit empty space. I wonder if that would still be "virtualization friendly" as the adapter claims to be... > > One way to see if this is the problem is to trace mmio that misses both > kvm internal devices and qemu devices. We'll check. Jan -- Siemens AG, Corporate Technology, CT T DE IT 1 Corporate Competence Center Embedded Linux -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
