On Thu, Feb 28, 2019 at 5:27 AM Marc Zyngier <marc.zyngier@xxxxxxx> wrote:
>
> Daniel Verkamp reported that the backport of 0d640732dbeb ("arm64: KVM: Skip
> MMIO insn after emulation") to 4.4-stable has broken KVM on arm/arm64.
>
> It turns out that the guest cannot make forward progress as soon as it hits
> a device emulated by the host kernel, like the interrupt controller. The
> reason for this is a set of missing dependencies from the 4.7 era. With
> these patches added to 4.4.175, I'm able to boot guests normally.
>
> Tested with both kvmtool and crossvm.
Thanks for the quick turnaround! I have also tested with these two
patches applied on top of 4.4.175, and crosvm is working again.
-- Daniel
