On Tue, 2008-11-25 at 15:57 -0600, Anthony Liguori wrote: > This has been posted before but I believe it now has addressed all outstanding > concerns. I'd like to apply it if there are no objections. > > This patch adds virtio-blk support to QEMU. virtio-blk is a paravirtual disk > controller that can achieve good performance when using KVM. > > Since virtio is based on a scatter/gather API, we don't have a linear buffer > for each request. This forces us to allocate a linear buffer since the > current > block driver API does not have a scatter/gather operation. This allocation > can never exceed the maximum data limit on the ring queue so it isn't > unbounded. > > posix-aio cannot support a scatter/gather asynchronous operation so we'll need > to introduce our own thread pool to eliminate this limitation. There is work > underway to do this. > > Signed-off-by: Anthony Liguori <[EMAIL PROTECTED]>
Tested and working (in conjunction with the virtio page size patch I just posted). -- Hollis Blanchard IBM Linux Technology Center -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html
