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| author | Philippe Mathieu-Daudé <philmd@redhat.com> | 2020-09-22 10:38:17 +0200 |
|---|---|---|
| committer | Stefan Hajnoczi <stefanha@redhat.com> | 2020-10-05 09:35:52 +0100 |
| commit | f68453237b9c97f7d1948236a359524c45d7e2d8 (patch) | |
| tree | ed1db47dfd9a2c48942ea2eb68b39a2f1dea1b2a /scripts/block-coroutine-wrapper.py | |
| parent | b02c01a513a17e03e2245feff19b3dcc8c408859 (diff) | |
| download | focaccia-qemu-f68453237b9c97f7d1948236a359524c45d7e2d8.tar.gz focaccia-qemu-f68453237b9c97f7d1948236a359524c45d7e2d8.zip | |
block/nvme: Map doorbells pages write-only
Per the datasheet sections 3.1.13/3.1.14: "The host should not read the doorbell registers." As we don't need read access, map the doorbells with write-only permission. We keep a reference to this mapped address in the BDRVNVMeState structure. Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com> Message-Id: <20200922083821.578519-3-philmd@redhat.com>
Diffstat (limited to 'scripts/block-coroutine-wrapper.py')
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