Re: [Qemu-devel] [Qemu-block] Guest unresponsive after Virtqueue size exceeded error

[Paolo Bonzini]

On 22/02/19 17:37, Dr. David Alan Gilbert wrote:
> Why does vring_avail_idx use virtio_ld*u*w_phys_cached?
> (similar for vring_avail_ring).
> There's no generically safe way to do unaligned atomic loads - don't we know
> in virtio that these are naturally aligned?

u is for unsigned. :)  We know that these are aligned and so they will
be atomic.

Paolo