Progress: * VIRT-65 [QEMU upstream maintainership] + QEMU 4.1 rc2 tagged + investigated and sent patches for a problem reported by Mark Rutland where we still were sometimes putting the initrd on top of the kernel in our built-in bootloader code + spent a couple of days tracking down the cause of LP:1696773, an intermittent bug when running AArch64 Go programs under QEMU linux-user mode. This turned out to be an incorrect implementation of 'sigaltstack' as setting a process-wide signal stack rather than a per-thread one. + prompted by a patch from Greensocs fixing a vmstate migration bug in the pl330 model, improved the vmstate macros to catch that category of bug; this detected one other bug lurking in a different device.

thanks -- PMM