vmx test in kvm-unit-test timeout on openstack with B-ibm-5.4

[Po-Hsu Lin]

Issue found on openstack with B-ibm-5.4

This is not a regression, we just start testing on openstack this cycle.

The vmx test will timeout on openstack intance, without any other failures reported:

Running '/home/ubuntu/autotest/client/tmp/ubuntu_kvm_unit_tests/src/kvm-unit-tests/tests/vmx'
 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=kvm -kernel /tmp/tmp.6x48AEEh9F -smp 1 -cpu max,+vmx -append -exit_monitor_from_l2_test -ept_access* -vmx_smp* -vmx_vmcs_shadow_test -atomic_switch_overflow_msrs_test -vmx_init_signal_test -vmx_apic_passthrough_tpr_threshold_test -apic_reg_virt_test -virt_x2apic_mode_test -vmx_pf_exception_test -vmx_pf_no_vpid_test -vmx_pf_invvpid_test -rdtsc_vmexit_diff_test -test_vmread_flags_touch -test_vmwrite_flags_touch -test_vmwrite_vmread -test_vmxon -vmx_apic_passthrough_test -vmx_pf_vpid_test -vmx_controls_test -vmx_cr4_osxsave_test -vmx_db_test -vmx_guest_state_area_test -vmx_hlt_with_rvi_test -vmx_host_state_area_test -vmx_intr_window_test -vmx_mtf_test -vmx_mtf_pdpte_test -vmx_nmi_window_test -vmx_pending_event_test -vmx_preemption_timer_tf_test -vmx_preemption_timer_zero_test -vmx_store_tsc_test # -initrd /tmp/tmp.HL5bC0NPST
 enabling apic
 smp: waiting for 0 APs
 paging enabled
 cr0 = 80010011
 cr3 = 1007000
 cr4 = 20
 filter = -exit_monitor_from_l2_test, test = test_vmx_feature_control
 VMX enabled and locked by BIOS
 filter = -exit_monitor_from_l2_test, test = test_vmxon
 filter = -exit_monitor_from_l2_test, test = test_vmptrld
 PASS: test vmptrld with unaligned vmcs
 PASS: test vmptrld with vmcs address bits set beyond physical address width
 PASS: test vmptrld with vmxon region
 PASS: test vmptrld with vmxon region vm-instruction error
 PASS: test vmptrld with valid vmcs region
 filter = -exit_monitor_from_l2_test, test = test_vmclear
 PASS: test vmclear with unaligned vmcs
 PASS: test vmclear with vmcs address bits set beyond physical address width
 PASS: test vmclear with vmxon region
 PASS: test vmclear with valid vmcs region
 Skipping volatile field 4400
 PASS: test vmclear flush (current VMCS)
 Skipping volatile field 4400
 PASS: test vmclear flush (!current VMCS)
 filter = -exit_monitor_from_l2_test, test = test_vmptrst
 PASS: test vmptrst
 filter = -exit_monitor_from_l2_test, test = test_vmwrite_vmread
 filter = -exit_monitor_from_l2_test, test = test_vmcs_high
 PASS: VMREAD TSC_OFFSET after VMWRITE TSC_OFFSET
 PASS: VMREAD TSC_OFFSET_HI after VMWRITE TSC_OFFSET
 PASS: VMREAD TSC_OFFSET_HI after VMWRITE TSC_OFFSET_HI
 PASS: VMREAD TSC_OFFSET after VMWRITE TSC_OFFSET_HI
 filter = -exit_monitor_from_l2_test, test = test_vmcs_lifecycle
 VMCLEAR VMCS0
 VMPTRLD VMCS0
 Skipping volatile field 4400
 PASS: current:VMCS0 active:[VMCS0]
 VMCLEAR VMCS0
 VMPTRLD VMCS0
 Skipping volatile field 4400
 PASS: current:VMCS0 active:[VMCS0]
 VMCLEAR VMCS1
 Skipping volatile field 4400
 PASS: current:VMCS0 active:[VMCS0]
 VMPTRLD VMCS1
 Skipping volatile field 4400
 PASS: current:VMCS1 active:[VMCS0,VCMS1]
 VMPTRLD VMCS0
 Skipping volatile field 4400
 PASS: current:VMCS0 active:[VMCS0,VCMS1]
 ...
 ...
 PASS: Handling #NM in L2's exception handler
 PASS: #NM handled by L2
 PASS: #NM correctly routed to L1
 PASS: Handling #NM in L2's exception handler
 PASS: #NM handled by L2
 qemu-system-x86_64: terminating on signal 15 from pid 32348 (timeout)
 FAIL vmx (timeout; duration=90s)

Please find attachment for the complete test log of this test.