Re: [Qemu-devel] QueuePFN peculiarity in virtio-mmio

2013-10-22 Thread Rusty Russell
Laszlo Ersek writes: > Hi, > > "Appendix X: virtio-mmio" in the virtio spec says Hi Laszlo, You're in luck! We're currently revising the virtio spec under the OASIS banner. I'd really like you to post your suggestion to their mailing list (yes, you will have to subscribe to it, for IP

Re: [Qemu-devel] QueuePFN peculiarity in virtio-mmio

2013-10-22 Thread Laszlo Ersek
My apologies, I used Anthony's previous (now obsolete) email. Updated it now & keeping full context below. Sorry. On 10/22/13 19:49, Laszlo Ersek wrote: > Hi, > > "Appendix X: virtio-mmio" in the virtio spec says > > • 0x040 | RW | QueuePFN > [...] When the Guest stops using the queue

[Qemu-devel] QueuePFN peculiarity in virtio-mmio

2013-10-22 Thread Laszlo Ersek
Hi, "Appendix X: virtio-mmio" in the virtio spec says • 0x040 | RW | QueuePFN [...] When the Guest stops using the queue it must write zero (0x0) to this register. [...] and Virtqueue Configuration [...] 2. Check if the queue is not already in use: read QueueP