Hello, In my testing of crosvm[1] with Linux 4.4.175, I am observing failures on a 'kevin' Chromebook (RK3399) device - the guest kernel does not even get to the point of printing its first messages, and the host seems to be spinning at 100% CPU in KVM_RUN. I narrowed this down to the 4.4 stable backport of "arm64: KVM: Skip MMIO insn after emulation" - with this patch reverted, I can boot the guest kernel as normal again. Unfortunately, I am unable to easily test with a newer upstream kernel (this board is using the Chrome OS kernel with many additional patches applied on top of 4.4), so I'm not sure if this issue was introduced in the mainline commit or only in the stable branch. Is it possible that this patch has other dependencies that were missed in the backport? It looks like it was part of a larger series, but only this patch got pulled for 4.4 stable. Thanks, -- Daniel [1]: https://chromium.googlesource.com/chromiumos/platform/crosvm/
