vmx_db_test in vmx from ubuntu_kvm_unit_tests failed on B-4.15 amd64

[Po-Hsu Lin]

Issue found on node glameow with 4.15.0-153

The vmx test can proceed with vmx_hlt_with_rvi_test (bug 1822308) move out as a standalone test.

Test suite: vmx_db_test

Hardware delivered single-step
PASS: Expected #DB VM-exit
PASS: Expected RIP 0x4043d8 (actual 4043d8)
PASS: Expected pending debug exceptions 0 (actual 0)
PASS: Expected exit qualification 4000 (actual 4000)
PASS: Expected DR6 ffff2ffa (actual ffff2ffa)

Hardware delivered single-step in MOVSS shadow
PASS: Expected #DB VM-exit
PASS: Expected RIP 0x4043dc (actual 4043dc)
PASS: Expected pending debug exceptions 0 (actual 0)
PASS: Expected exit qualification 4001 (actual 4001)
PASS: Expected DR6 ffff2ffa (actual ffff2ffa)

Software synthesized single-step
PASS: Expected #DB VM-exit
PASS: Expected RIP 0x4043e1 (actual 4043e1)
PASS: Expected pending debug exceptions 0 (actual 0)
FAIL: Expected exit qualification 4000 (actual 6000)
FAIL: Expected DR6 ffff2ffa (actual ffff6ff0)

Software synthesized single-step in MOVSS shadow
PASS: Expected #DB VM-exit
PASS: Expected RIP 0x4043e6 (actual 4043e6)
XFAIL: Expected pending debug exceptions 0 (actual 5001)
XFAIL: Expected exit qualification 4001 (actual 6000)
FAIL: Expected DR6 ffff2ffa (actual ffff6ff0)
filter = -exit_monitor_from_l2_test, test = vmx_nmi_window_test
filter = -exit_monitor_from_l2_test, test = vmx_intr_window_test
filter = -exit_monitor_from_l2_test, test = vmx_pending_event_test
filter = -exit_monitor_from_l2_test, test = vmx_pending_event_hlt_test

[Po-Hsu Lin (cypressyew)]

Spotted on B-kvm 4.15.0-1099.101

[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 is still failing with the same error message.