apic-split / x2apic test in kvm-unit-test timeout on openstack with B-ibm-5.4

Issue found on openstack with B-ibm-5.4

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

These two tests have identical result. And they all timeout in the end.

'/home/ubuntu/autotest/client/tmp/ubuntu_kvm_unit_tests/src/kvm-unit-tests/tests/apic-split'
 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.rc21wvKKbh -smp 2 -cpu qemu64,+x2apic,+tsc-deadline -machine kernel_irqchip=split # -initrd /tmp/tmp.mZq2sDmBk3
 qemu-system-x86_64: warning: host doesn't support requested feature: CPUID.80000001H:ECX.svm [bit 2]
 qemu-system-x86_64: warning: host doesn't support requested feature: CPUID.80000001H:ECX.svm [bit 2]
 enabling apic
 smp: waiting for 1 APs
 enabling apic
 setup: CPU 1 online
 paging enabled
 cr0 = 80010011
 cr3 = 1007000
 cr4 = 20
 apic version: 14
 PASS: apic existence
 PASS: apic_disable: Local apic disabled
 PASS: apic_disable: CPUID.1H:EDX.APIC[bit 9] is clear
 PASS: apic_disable: *0xfee00030: ffffffff
 PASS: apic_disable: CR8: 0
 PASS: apic_disable: CR8: f
 PASS: apic_disable: *0xfee00080: ffffffff
 PASS: apic_disable: Local apic enabled in xAPIC mode
 PASS: apic_disable: CPUID.1H:EDX.APIC[bit 9] is set
 PASS: apic_disable: *0xfee00030: 1050014
 PASS: apic_disable: *0xfee00080: 0
 PASS: apic_disable: *0xfee00080: f0
 PASS: apic_disable: Local apic enabled in x2APIC mode
 PASS: apic_disable: CPUID.1H:EDX.APIC[bit 9] is set
 PASS: apic_disable: *0xfee00030: ffffffff
 PASS: apic_disable: CR8: 0
 PASS: apic_disable: CR8: f
 PASS: apic_disable: *0xfee00080: ffffffff
 x2apic enabled
 PASS: x2apic enabled to invalid state
 PASS: x2apic enabled to apic enabled
 PASS: x2apic enabled to disabled state
 PASS: disabled to invalid state
 PASS: disabled to x2apic enabled
 PASS: apic disabled to apic enabled
 PASS: apic enabled to invalid state
 PASS: self_ipi_xapic: Local apic enabled in xAPIC mode
 PASS: self_ipi_xapic: self ipi
 PASS: self_ipi_x2apic: Local apic enabled in x2APIC mode
 PASS: self_ipi_x2apic: self ipi
 starting broadcast (x2apic)
 PASS: APIC physical broadcast address
 PASS: APIC physical broadcast shorthand
 PASS: PV IPIs testing
 qemu-system-x86_64: terminating on signal 15 from pid 13710 (timeout)
 FAIL apic-split (timeout; duration=90s)

'/home/ubuntu/autotest/client/tmp/ubuntu_kvm_unit_tests/src/kvm-unit-tests/tests/x2apic'
 BUILD_HEAD=d8edb59a
 timeout -k 1s --foreground 30 /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.W2t0dP0LPl -smp 2 -cpu qemu64,+x2apic,+tsc-deadline # -initrd /tmp/tmp.CYJsNEMxFA
 qemu-system-x86_64: warning: host doesn't support requested feature: CPUID.80000001H:ECX.svm [bit 2]
 qemu-system-x86_64: warning: host doesn't support requested feature: CPUID.80000001H:ECX.svm [bit 2]
 enabling apic
 smp: waiting for 1 APs
 enabling apic
 setup: CPU 1 online
 paging enabled
 cr0 = 80010011
 cr3 = 1007000
 cr4 = 20
 apic version: 14
 PASS: apic existence
 PASS: apic_disable: Local apic disabled
 PASS: apic_disable: CPUID.1H:EDX.APIC[bit 9] is clear
 PASS: apic_disable: *0xfee00030: ffffffff
 PASS: apic_disable: CR8: 0
 PASS: apic_disable: CR8: f
 PASS: apic_disable: *0xfee00080: ffffffff
 PASS: apic_disable: Local apic enabled in xAPIC mode
 PASS: apic_disable: CPUID.1H:EDX.APIC[bit 9] is set
 PASS: apic_disable: *0xfee00030: 50014
 PASS: apic_disable: *0xfee00080: 0
 PASS: apic_disable: *0xfee00080: f0
 PASS: apic_disable: Local apic enabled in x2APIC mode
 PASS: apic_disable: CPUID.1H:EDX.APIC[bit 9] is set
 PASS: apic_disable: *0xfee00030: ffffffff
 PASS: apic_disable: CR8: 0
 PASS: apic_disable: CR8: f
 PASS: apic_disable: *0xfee00080: ffffffff
 x2apic enabled
 PASS: x2apic enabled to invalid state
 PASS: x2apic enabled to apic enabled
 PASS: x2apic enabled to disabled state
 PASS: disabled to invalid state
 PASS: disabled to x2apic enabled
 PASS: apic disabled to apic enabled
 PASS: apic enabled to invalid state
 PASS: self_ipi_xapic: Local apic enabled in xAPIC mode
 PASS: self_ipi_xapic: self ipi
 PASS: self_ipi_x2apic: Local apic enabled in x2APIC mode
 PASS: self_ipi_x2apic: self ipi
 starting broadcast (x2apic)
 PASS: APIC physical broadcast address
 PASS: APIC physical broadcast shorthand
 PASS: PV IPIs testing
 qemu-system-x86_64: terminating on signal 15 from pid 8646 (timeout)
 FAIL x2apic (timeout; duration=30)