gicv2 related tests in ubuntu_kvm_unit_tests failed with SIGABRT on X-hwe ARM64 ThunderX

All the gicv2 related tests have failed on the ARM64 ThunderX testing node with X-HWE kernel:;

 FAIL gicv2-ipi (terminated on SIGABRT)
 FAIL gicv2-mmio (terminated on SIGABRT)
 FAIL gicv2-mmio-up (terminated on SIGABRT)
 FAIL gicv2-mmio-3p (terminated on SIGABRT)
 FAIL gicv2-active (terminated on SIGABRT)

This is because:
Failed to set device address: No such device

Take one of them for example:
# MAX_SMP=48
# TESTNAME=gicv2-mmio TIMEOUT=90s ACCEL= ./arm/run arm/gic.flat -smp $((($MAX_SMP < 8)?$MAX_SMP:8)) -machine gic-version=2 -append 'mmio'
timeout -k 1s --foreground 90s /usr/bin/qemu-system-aarch64 -nodefaults -machine virt,gic-version=host,accel=kvm -cpu host -device virtio-serial-device -device virtconsole,chardev=ctd -chardev testdev,id=ctd -device pci-testdev -display none -serial stdio -kernel arm/gic.flat -smp 8 -machine gic-version=2 -append mmio # -initrd /tmp/tmp.Xn7TN56BKl

Failed to set device address: No such device
timeout: the monitored command dumped core
QEMU Aborted

ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: linux-image-4.15.0-48-generic 4.15.0-48.51~16.04.1
ProcVersionSignature: User Name 4.15.0-48.51~16.04.1-generic 4.15.18
Uname: Linux 4.15.0-48-generic aarch64
ApportVersion: 2.20.1-0ubuntu2.18
Architecture: arm64
Date: Wed May 8 03:57:01 2019
SourcePackage: linux-hwe
UpgradeStatus: No upgrade log present (probably fresh install)