pmu-cycle-counter in ubuntu_kvm_unit_tests failed with on X ARM64 Moonshots

[Po-Hsu Lin]

Issue found on X 4.4.0-215.247 ARM64 Moonshot

Running '/home/ubuntu/autotest/client/tmp/ubuntu_kvm_unit_tests/src/kvm-unit-tests/tests/pmu-cycle-counter'
 BUILD_HEAD=1593e88a
 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 /tmp/tmp.5zpf3IC76R -smp 1 -append cycle-counter 0 # -initrd /tmp/tmp.Um2z5Nh6O1
 INFO: PMU version: 0x1
 INFO: PMU implementer/ID code: 0(" ")/0
 INFO: Implements 0 event counters
 Load address: 40080000
 PC: 4008c208 PC offset: c208
 Unhandled exception ec=0 (UNKNOWN)
 Vector: 4 (el1h_sync)
 ESR_EL1: 02000000, ec=0 (UNKNOWN)
 FAR_EL1: 1de7ec7edbadc0de (not valid)
 Exception frame registers:
 pc : [<000000004008c208>] lr : [<000000004008c564>] pstate: 600003c5
 sp : 00000000400bff50
 x29: 0000000000000000 x28: 0000000000000000
 x27: 0000000000000000 x26: 00000000400946f0
 x25: 0000000040094780 x24: 0000000000000003
 x23: 0000000000000000 x22: 0000000040094000
 x21: 00000000400947a0 x20: 0000000000000000
 x19: 00000000400946f0 x18: 00000000400bfea8
 x17: 0000000000000000 x16: 0000000000000000
 x15: 00000000000016e0 x14: 0000000000001710
 x13: 000000000000170c x12: 0000000000000020
 x11: 00000000400bf5a0 x10: 0000000000000000
 x9 : 0000000000000060 x8 : 0000000000000039
 x7 : 0000000000000039 x6 : 0000000000000040
 x5 : 000000000000000a x4 : 0000000000000000
 x3 : 0000000000000000 x2 : 0000000000000000
 x1 : 0000000000000000 x0 : 0000000080000000

 FAIL pmu-cycle-counter

This is not a regression, this failure can be found on 4.4.0-214.246 as well.

[Po-Hsu Lin (cypressyew)]

With kvm-unit-test repo updated to d8a4f9e5 (ci: Update the list of tests that we run in the Fedora Cirrus-CI), this test will be skipped on this moonshot system:

 Running '/home/ubuntu/autotest/client/tmp/ubuntu_kvm_unit_tests/src/kvm-unit-tests/tests/pmu-cycle-counter'
 BUILD_HEAD=63cdb04b
 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 _NO_FILE_4Uhere_ -smp 1 -append cycle-counter 0 # -initrd /tmp/tmp.c47gJSA51F
 qemu-system-aarch64: -accel: invalid option
 SKIP pmu-cycle-counter (qemu-system-aarch64: -accel: invalid option)
GOOD ubuntu_kvm_unit_tests.pmu-cycle-counter ubuntu_kvm_unit_tests.pmu-cycle-counter timestamp=1665027907 localtime=Oct 06 03:45:07 completed successfully