887938160e
Add a completions_only flag, and set this when running process_frame for async completion handling, this fixes 2 issues in a single patch: 1) It makes sure async completed packets get written to guest mem immediately, even if all the bandwidth for the frame was consumed from the timer run process_frame. This is necessary as delaying their writeback to the next frame can cause the completion to get lost on migration. 2) The calling of process_frame from a bh on async completion causes iso tds to get server more often they should, messing up usb sound class device timing. By only processing completed packets, the iso tds get skipped fixing this. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Read the documentation in qemu-doc.html or on http://wiki.qemu.org - QEMU team