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libxl/blktap integration #1491

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libxl/blktap integration #1491

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Commits on Jan 5, 2024

  1. blktap: Use blktap/control name 

    We patch blktap to use blktap-control as the misc device name since
upstream blktap uses blktap/control.  Change our linux patch to use
blktap/control and drop our blktap patching to align with upstream.

refpolicy needs an additional fixup to label /dev/blktap/control
properly.

Signed-off-by: Jason Andryuk <[email protected]>
    @jandryuk
    jandryuk committed Jan 5, 2024
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Commits on Jan 8, 2024

  1. Revert "dom0-image: Remove tapback" 

    tapback is making a comeback!  We'll run it in dom0 to directly provide
the tapdisk backends.

This reverts commit 7151b14.

Signed-off-by: Jason Andryuk <[email protected]>
    @jandryuk
    jandryuk committed Jan 8, 2024
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Commits on Feb 1, 2024

  1. blktap3: Upstream libxl compatibility 

    Add patches for libxl compatibility.

Pass --libxl flag to tapback for compatibility mode.

Signed-off-by: Jason Andryuk <[email protected]>
    @jandryuk
    jandryuk committed Feb 1, 2024
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  2. xen-tools: libxl vbd3 support 

    Add patches for libxl to directly support vbd3 without going through
blkback.

Signed-off-by: Jason Andryuk <[email protected]>
    @jandryuk
    jandryuk committed Feb 1, 2024
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  3. qemu-dm: Re-enabled NBD support 

    tapdisk exposes its disks over NBD, and libxl uses that to configure
QEMU's access in dom0.  We need to re-enabled NBD support for the
non-stubdom case to access the disks.

Signed-off-by: Jason Andryuk <[email protected]>
    @jandryuk
    jandryuk committed Feb 1, 2024
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  4. refpolicy: Allow qemu_t to access tapdisk NBD socket 

    QEMU needs to connect to the tapdisk unix socket to access the exported
disk images.  Allow it.

Signed-off-by: Jason Andryuk <[email protected]>
    @jandryuk
    jandryuk committed Feb 1, 2024
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