EPT A/D disabled (enabled) in vmx from ubuntu_kvm_unit_tests failed with B-azure-4.15

[Po-Hsu Lin]

This is not a regression, issue spotted after the kvm-unit-test fork update [1]

The vmx on B-azure-4.15 is not failing with "instruction intercept" test (bug 1931956) anymore, but failing with these two tests on different instances instead.

* EPT A/D disabled
  - Standard_D4s_v3-gen2
  - Standard_D4_v4

* EPT A/D enabled
  - Standard_D4_v4

Test log:
 Test suite: EPT A/D disabled
 EPT - guest level 4 page table is not mapped.
 EPT - guest level 4 page table is not mapped.
 PASS: EPT basic framework
 PASS: EPT misconfigurations
 EPT - guest level 4 page table is not mapped.
 PASS: EPT violation - page permission
 EPT - guest level 4 page table is not mapped.
 FAIL: EPT violation - paging structure
 PASS: MMIO EPT violation - read
 PASS: MMIO EPT violation - write
 PASS: EPT - MMIO access
 PASS: EPT - unsupported INVEPT

 Test suite: EPT A/D enabled
 PASS: EPT - guest page table structures A=1/D=1
 PASS: EPT - guest physical address A=1/D=0
 PASS: EPT - guest page table structures A=1/D=1
 PASS: EPT - guest physical address A=1/D=1
 PASS: EPT basic framework
 PASS: EPT misconfigurations
 PASS: EPT - guest page table structures A=1/D=1
 PASS: EPT - guest physical address A=0/D=0
 PASS: EPT violation - page permission
 EPT - guest level 4 page table is not mapped.
 FAIL: EPT violation - paging structure
 PASS: MMIO EPT violation - read
 PASS: MMIO EPT violation - write

I haven't found a way to split these tests out of vmx.

[1] https://lists.ubuntu.com/archives/kernel-team/2022-October/133765.html