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| author | John Snow <jsnow@redhat.com> | 2015-03-27 15:48:11 -0400 |
|---|---|---|
| committer | John Snow <jsnow@redhat.com> | 2015-03-27 15:48:11 -0400 |
| commit | fc3d8e1138cd0c843d6fd75272633a31be6554ef (patch) | |
| tree | 574c1e3c0687d8379ea17dc95aa0316cdab2dc36 /hw/s390x | |
| parent | a13ab5a35bc0435fcfdacb3e171ceedcc077573d (diff) | |
AHCI: Protect cmd register
Many bits in the CMD register are supposed to be strictly read-only.
We should not be deleting them on every write.
As a side-effect: pay explicit attention to when a guest marks off
the FIS Receive or Start bits, and disable the status bits ourselves,
instead of letting them implicitly fall off.
Signed-off-by: John Snow <jsnow@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-id: 1426283454-15590-3-git-send-email-jsnow@redhat.com
Diffstat (limited to 'hw/s390x')
0 files changed, 0 insertions, 0 deletions