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Add virtio-fs support (alternative to virtio-9p) #1016

Merged
merged 8 commits into from
May 7, 2019
Merged

Add virtio-fs support (alternative to virtio-9p) #1016

merged 8 commits into from
May 7, 2019

Commits on May 1, 2019

  1. vendor: update govmm 

    Shortlog:
b3e7a9e Merge pull request kata-containers#91 from stefanha/virtio-fs-cache-size-mb
058cda0 qemu: use MiB instead of Gib for virtio-fs cache size

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
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    stefanhaRH committed May 1, 2019
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  2. config: add shared_fs option 

    Add a config option to select between virtio-9p and virtiofs.  This
option currently has no effect and will be used in a later patch.

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
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  3. config: add virtio_fs_daemon string 

    Add a config option for the virtio-fs vhost-user daemon path.

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
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Commits on May 5, 2019

  1. qemu: add vhost-user-fs-pci device instead of 9p 

    When enable_virtio_fs is true, add a vhost-user-fs-pci for the
kataShared volume instead of 9p.

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
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  2. kata_agent: use virtio-fs shared dir in CreateSandbox 

    Use virtio-fs instead of virtio-9p when virtio-fs is enabled.

Fixes: kata-containers#1542
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
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  3. virtiofs: Add cache size option 

    Add VirtioFSCacheSize aka virtio_fs_cache_size option
to set the size (in MiB) of the DAX cache.

Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
    @dagrh @stefanhaRH
    dagrh authored and stefanhaRH committed May 5, 2019
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  4. virtiofs: Add cache option 

    Several cache modes are supported by virtio-fs.  They affect the
performance and consistency characteristics of the file system.

For the time being cache="none" is recommended, but the other modes can
be experimented with.

Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
    @dagrh @stefanhaRH
    dagrh authored and stefanhaRH committed May 5, 2019
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  5. kata-env: add SharedFS option to output 

    It's useful to know whether virtio-9p or virtio-fs is being used.  Add
the status to the kata-env output.

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
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