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virtio_balloon: add support for MMIO devices #2081

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virtio_balloon: add support for MMIO devices #2081

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Commits on Nov 22, 2024

  1. virtio_mmio: add interrupt setup helper function 

    This function will be reused when adding support for configuration
change handlers.
    @francescolavra
    francescolavra committed Nov 22, 2024
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  2. virtio_mmio: add support configuration change handlers 

    It is now possible for a virtio MMIO device driver to register a
handler function that is invoked when the device configuration
changes.
    @francescolavra
    francescolavra committed Nov 22, 2024
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  3. virtio_balloon: add VIRTIO_BALLOON_DRV_FEATURES definition 

    This preprocessor definition includes all the features supported by
the driver.
No functional change.
    @francescolavra
    francescolavra committed Nov 22, 2024
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  4. virtio_balloon: add check for PCI probe closure allocation failure

    @francescolavra
    francescolavra committed Nov 22, 2024
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  5. virtio_balloon: change allocation unit size from 2 MB to 1 MB 

    The virtio memory balloon device in AWS Firecracker does not
support more than 256 pages in a single inflate descriptor. 256
pages correspond to 1 MB of memory; therefore, change the balloon
allocation unit size to 1 MB, in preparation for adding support for
Firecracker balloon devices.
    @francescolavra
    francescolavra committed Nov 22, 2024
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  6. virtio_balloon: add support for MMIO devices 

    This allows the virtio memory balloon driver to work with AWS
Firecracker, which instantiates MMIO devices.
    @francescolavra
    francescolavra committed Nov 22, 2024
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