pcid-asymmetric / pcid-disabled / pcid-enabled in ubuntu_kvm_unit_test failed with "FAIL: Test on PCID when disabled" with J-realtime on openstack AMD64

[Po-Hsu Lin]

Unlike bug 1965503 is failing with "FAIL: Test on INVPCID when disabled" for another bare-metal with AMD CPU.

pcid-asymmetric / pcid-disabled / pcid-enabled tests in ubuntu_kvm_unit_test will fail with "FAIL: Test on PCID when disabled" with J-realtime on openstack amd64 instance. This issue can be seen after we start testing on openstack with 5.15.0-1036.39 in sru-20230320.

Test log:
 Running '/home/ubuntu/autotest/client/tmp/ubuntu_kvm_unit_tests/src/kvm-unit-tests/tests/pcid-asymmetric'
 BUILD_HEAD=d8edb59a
 timeout -k 1s --foreground 90s /usr/bin/qemu-system-x86_64 --no-reboot -nodefaults -device pc-testdev -device isa-debug-exit,iobase=0xf4,iosize=0x4 -vnc none -serial stdio -device pci-testdev -machine accel=tcg -kernel /tmp/tmp.6KB6nZgK2X -smp 1 -cpu qemu64,-pcid,+invpcid # -initrd /tmp/tmp.UVHMimij8Y
 qemu-system-x86_64: warning: TCG doesn't support requested feature: CPUID.07H:EBX.invpcid [bit 10]
 enabling apic
 smp: waiting for 0 APs
 FAIL: Test on PCID when disabled
 PASS: Test on INVPCID when disabled
 SUMMARY: 2 tests, 1 unexpected failures
 FAIL pcid-asymmetric (2 tests, 1 unexpected failures)

 Running '/home/ubuntu/autotest/client/tmp/ubuntu_kvm_unit_tests/src/kvm-unit-tests/tests/pcid-disabled'
 BUILD_HEAD=d8edb59a
 timeout -k 1s --foreground 90s /usr/bin/qemu-system-x86_64 --no-reboot -nodefaults -device pc-testdev -device isa-debug-exit,iobase=0xf4,iosize=0x4 -vnc none -serial stdio -device pci-testdev -machine accel=tcg -kernel /tmp/tmp.Qxeu7ZLBXv -smp 1 -cpu qemu64,-pcid,-invpcid # -initrd /tmp/tmp.cSbBAvRFtJ
 enabling apic
 smp: waiting for 0 APs
 FAIL: Test on PCID when disabled
 PASS: Test on INVPCID when disabled
 SUMMARY: 2 tests, 1 unexpected failures
 FAIL pcid-disabled (2 tests, 1 unexpected failures)

 Running '/home/ubuntu/autotest/client/tmp/ubuntu_kvm_unit_tests/src/kvm-unit-tests/tests/pcid-enabled'
 BUILD_HEAD=d8edb59a
 timeout -k 1s --foreground 90s /usr/bin/qemu-system-x86_64 --no-reboot -nodefaults -device pc-testdev -device isa-debug-exit,iobase=0xf4,iosize=0x4 -vnc none -serial stdio -device pci-testdev -machine accel=tcg -kernel /tmp/tmp.gDFWxLWsRs -smp 1 -cpu qemu64,+pcid,+invpcid # -initrd /tmp/tmp.dsymnPffXt
 qemu-system-x86_64: warning: TCG doesn't support requested feature: CPUID.01H:ECX.pcid [bit 17]
 qemu-system-x86_64: warning: TCG doesn't support requested feature: CPUID.07H:EBX.invpcid [bit 10]
 enabling apic
 smp: waiting for 0 APs
 FAIL: Test on PCID when disabled
 PASS: Test on INVPCID when disabled
 SUMMARY: 2 tests, 1 unexpected failures
 FAIL pcid-enabled (2 tests, 1 unexpected failures)

This issue still exist with the latest upstream kvm-unit-tests code (02d8befe99f8)
It's worthy to note that this test has passed with j/ibm on openstack amd64.