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44d066a2f7
Xiao Guangrong ran kvm-unit-tests on an actual machine with PKU and found that it fails: test pte.p pte.user pde.p pde.user pde.a pde.pse pkru.wd pkey=1 user write efer.nx cr4.pke: FAIL: error code 27 expected 7 Dump mapping: address: 0x123400000000 ------L4: 2ebe007 ------L3: 2ebf007 ------L2: 8000000020000a5 (All failures are combinations of "pde.user pde.p pkru.wd pkey=1", plus either "pde.pse" or "pte.p pte.user", plus one of "user cr0.wp", "cr0.wp" or "user", plus unimportant bits such as accessed/dirty or efer.nx). So PFEC.PKEY is set even if the ordinary check failed (which it did because pde.w is zero). Adjust QEMU to match behavior of silicon. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>