At 15:50 +0000 on 08 Jan (1420728649), Jan Beulich wrote: > While the REP MOVS acceleration appears to have helped qemu-traditional > based guests, qemu-upstream (or really the respective video BIOSes) > doesn't appear to benefit from that. Instead the acceleration added > here provides a visible performance improvement during very early HVM > guest boot. > > Signed-off-by: Jan Beulich <jbeul...@suse.com>
If I read this right, it's allocating and memset()ing a buffer and then copying that buffer to the guest? Would it be better to map the guest frame and write directly? Edge cases where the STOS crosses a frame boundary could happen the old way. Cheers, Tim. _______________________________________________ Xen-devel mailing list Xen-devel@lists.xen.org http://lists.xen.org/xen-devel
