I sent ~20 days ago a series that allowed me to boot x86_64 with mttcg: https://patchwork.kernel.org/cover/10564977/
Thanks to Paolo's work (already merged), we don't need to hold the BQL when calling cpu_get_ticks, which makes the MTTCG conversion even simpler. [ I have a couple more patches related to some of that work, but I'll send them next week once Paolo is back ] This series enables MTTCG for both x86_64 and i386. I tested both with a buildroot image, and looked for races with Valgrind's helgrind. The first four patches are not really necessary for i386 MTTCG, but since they'll eventually go via Paolo's tree I included them here. You can fetch this series from: https://github.com/cota/qemu/tree/i386-mttcg Thanks, Emilio
