kvm_unit_test failed on ThunderX but passed on Moonshot ARM64

With Xenial kernel + QEMU emulator version 2.5.0, the kvm_unit_test failed on ThunderX system, but passed on the m400 moonshot system.

starmie-kernel PASSED: 2 FAILED: 4
ms10-34-mcdivittB0-kernel PASSED: 6 FAILED: 0

   Passed setup.all
   Failed selftest-setup
   Failed selftest-vectors-kernel
   Failed selftest-vectors-user
   Passed selftest-smp
   Failed pci-test

They all failed with "Failed to set device address: No such device"

Ran these job manually it will print:
$ sudo ./arm/run arm/selftest.flat -smp 2 -m 256 -append 'setup smp=2 mem=256'
qemu-system-aarch64 -machine virt,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/selftest.flat -smp 2 -m 256 -append setup smp=2 mem=256
Failed to set device address: No such device

So the qemu-system-aarch64 output looks like the real command it uses, execute it manually:
$ sudo ./qemu-system-aarch64 -machine virt,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/selftest.flat -smp 2 -m 256 -append setup smp=2 mem=256
qemu-system-aarch64: -append setup: Could not open 'smp=2': No such file or directory

I found a discussion thread similar to this https://bugzilla.redhat.com/show_bug.cgi?id=1375571

ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: linux-image-4.4.0-93-generic 4.4.0-93.116
ProcVersionSignature: User Name 4.4.0-93.116-generic 4.4.79
Uname: Linux 4.4.0-93-generic aarch64
AlsaDevices:
 total 0
 crw-rw---- 1 root audio 116, 1 Sep 7 07:55 seq
 crw-rw---- 1 root audio 116, 33 Sep 7 07:55 timer
AplayDevices: Error: [Errno 2] No such file or directory: 'aplay'
ApportVersion: 2.20.1-0ubuntu2.10
Architecture: arm64
ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord'
AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1:
CRDA: N/A
Date: Thu Sep 7 10:45:15 2017
IwConfig: Error: [Errno 2] No such file or directory: 'iwconfig'
MachineType: Cavium ThunderX CRB
PciMultimedia:

ProcEnviron:
 TERM=xterm-256color
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_US.UTF-8
 SHELL=/bin/bash
ProcFB: 0 astdrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-93-generic root=UUID=c5160401-c147-4329-9683-b946ce7d0d37 ro
RelatedPackageVersions:
 linux-restricted-modules-4.4.0-93-generic N/A
 linux-backports-modules-4.4.0-93-generic N/A
 linux-firmware 1.157.12
RfKill: Error: [Errno 2] No such file or directory: 'rfkill'
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 12/12/2012
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 5.11
dmi.board.asset.tag: To be filled by O.E.M.
dmi.board.name: To be filled by O.E.M.
dmi.board.vendor: To be filled by O.E.M.
dmi.board.version: To be filled by O.E.M.
dmi.chassis.asset.tag: To be filled by O.E.M.
dmi.chassis.type: 0
dmi.chassis.vendor: Cavium
dmi.chassis.version: To be filled by O.E.M.
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr5.11:bd12/12/2012:svnCavium:pnThunderXCRB:pvrTobefilledbyO.E.M.:rvnTobefilledbyO.E.M.:rnTobefilledbyO.E.M.:rvrTobefilledbyO.E.M.:cvnCavium:ct0:cvrTobefilledbyO.E.M.:
dmi.product.name: ThunderX CRB
dmi.product.version: To be filled by O.E.M.
dmi.sys.vendor: Cavium