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| author | Paolo Bonzini <pbonzini@redhat.com> | 2016-04-06 09:45:42 +0200 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2016-04-08 00:07:56 +0200 |
| commit | 44d066a2f770ee9d61fd1c2a609bdf2a994dfdf7 (patch) | |
| tree | a64a69cdd0e412cd2f1904279c41d6a05b93d312 /hw | |
| parent | 57a6c059a632587f152c5bf0f5019c23a3fa3a8c (diff) | |
target-i386: check for PKU even for non-writable pages
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>
Diffstat (limited to 'hw')
0 files changed, 0 insertions, 0 deletions