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.
Christoffer Dall (1):
KVM: arm/arm64: Fix MMIO emulation data handling
Marc Zyngier (1):
arm/arm64: KVM: Feed initialized memory to MMIO accesses
arch/arm/kvm/mmio.c | 10 ++++++----
virt/kvm/arm/vgic.c | 7 -------
2 files changed, 6 insertions(+), 11 deletions(-)
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2.20.1
