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author | Paolo Bonzini <pbonzini@redhat.com> | 2017-05-11 13:23:29 +0200 |
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committer | Radim Krčmář <rkrcmar@redhat.com> | 2017-05-15 18:22:40 +0200 |
commit | 0780516a18f87e881e42ed815f189279b0a1743c (patch) | |
tree | 229ce5f517835cdc192664ea8a14cb4b6a779336 /drivers/fpga/xilinx-spi.c | |
parent | fce6ac4c0508b985d497e3d9c8eff28ec8a43182 (diff) |
KVM: nVMX: fix EPT permissions as reported in exit qualification
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>
Diffstat (limited to 'drivers/fpga/xilinx-spi.c')
0 files changed, 0 insertions, 0 deletions