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This fixes the new ept_access_test_read_only and ept_access_test_read_write
testcases from vmx.flat.
The problem is that gpte_access moves bits around to switch from EPT
bit order (XWR) to ACC_*_MASK bit order (RWX). This results in an
incorrect exit qualification. To fix this, make pt_access and
pte_access operate on raw PTE values (only with NX flipped to mean
"can execute") and call gpte_access at the end of the walk. This
lets us use pte_access to compute the exit qualification with XWR
bit order.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Xiao Guangrong <xiaoguangrong@tencent.com>
Signed-off-by: Radim Krčmář <rkrcmar@redhat.com>
0780516a18