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Create minimal driver VMs #122

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Create minimal driver VMs #122

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Commits on Sep 22, 2024

  1. create a minimal linux kernel image and rootfs for the virtio example… 

    … on qemu and mark the unused imgaes with a .old extension

Signed-off-by: Anuraag <[email protected]>
    @Anuraag-Ganesh @boinkaput
    Anuraag-Ganesh authored and boinkaput committed Sep 22, 2024
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  2. 4867a7c set the target flag for userlevel cc aarch64-linux-musl inste… 

    …ad of aarch64-linux-gnu for static linking

Signed-off-by: Anuraag <[email protected]>
    @Anuraag-Ganesh @boinkaput
    Anuraag-Ganesh authored and boinkaput committed Sep 22, 2024
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  3. add a new option to packrootfs that saves a file to the root as init … 

    …rather than copying it to /etc/init.d

Signed-off-by: Anuraag <[email protected]>
    @Anuraag-Ganesh @boinkaput
    Anuraag-Ganesh authored and boinkaput committed Sep 22, 2024
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  4. add perl as a dependency to nix.shell for shasum 

    Signed-off-by: Anuraag <[email protected]>
    @Anuraag-Ganesh @boinkaput
    Anuraag-Ganesh authored and boinkaput committed Sep 22, 2024
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  5. create a minimal linux kernel image and rootfs for the virtio-snd exa… 

    …mple on qemu and mark the unused imgaes with a .old extension

Signed-off-by: Anuraag <[email protected]>
    @Anuraag-Ganesh @boinkaput
    Anuraag-Ganesh authored and boinkaput committed Sep 22, 2024
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  6. set the target flag for userlevel cc aarch64-linux-musl instead of aa… 

    …rch64-linux-gnu for static linking

Signed-off-by: Anuraag <[email protected]>
    @Anuraag-Ganesh @boinkaput
    Anuraag-Ganesh authored and boinkaput committed Sep 22, 2024
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  7. update nix.shell to build a static library for alsa-lib 

    Signed-off-by: Anuraag <[email protected]>
    @Anuraag-Ganesh @boinkaput
    Anuraag-Ganesh authored and boinkaput committed Sep 22, 2024
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  8. compile the uio sound driver and link it with the alsa-lib separately… 

    … to prevent it from duplicating the alsa-lib symbols

Signed-off-by: Anuraag <[email protected]>
    @Anuraag-Ganesh @boinkaput
    Anuraag-Ganesh authored and boinkaput committed Sep 22, 2024
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  9. use capacity instead of size 

    Signed-off-by: Anuraag <[email protected]>
    @Anuraag-Ganesh @boinkaput
    Anuraag-Ganesh authored and boinkaput committed Sep 22, 2024
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  10. update the linux kernel image for the virtio example to use same linu… 

    …x kernel image as virtio-snd

include config options that are required but were not previously included

Signed-off-by: Anuraag <[email protected]>
    @Anuraag-Ganesh @boinkaput
    Anuraag-Ganesh authored and boinkaput committed Sep 22, 2024
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  11. create a custom init script for the block driver VM userspace 

    create a custom init script for the sound driver VM userspace

move alsactl init back to the uio sound driver program

create a script that performs the initial setup for a driver VM and provides functions that each driver VM can implement

Signed-off-by: Anuraag <[email protected]>
    @Anuraag-Ganesh @boinkaput
    Anuraag-Ganesh authored and boinkaput committed Sep 22, 2024
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  12. alsactl init was being called before the sound device node was create… 

    …d. This fixes the issue by calling it multiple times until it succeeds.

Signed-off-by: Anuraag <[email protected]>
    @Anuraag-Ganesh @boinkaput
    Anuraag-Ganesh authored and boinkaput committed Sep 22, 2024
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Commits on Sep 23, 2024

  1. remove old linux, linux_config, buildroot_config and init script file… 

    …s from virtio-snd and virtio examples

Signed-off-by: Anuraag <[email protected]>
    @Anuraag-Ganesh @boinkaput
    Anuraag-Ganesh authored and boinkaput committed Sep 23, 2024
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  2. find the minumum amount of RAM required by the sound driver VM 

    Signed-off-by: Anuraag <[email protected]>
    @Anuraag-Ganesh @boinkaput
    Anuraag-Ganesh authored and boinkaput committed Sep 23, 2024
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  3. find the minumum amount of RAM required by the block driver VM 

    Signed-off-by: Anuraag <[email protected]>
    @Anuraag-Ganesh @boinkaput
    Anuraag-Ganesh authored and boinkaput committed Sep 23, 2024
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  4. copy the linux, linux_config and rootfs.cpio.gz from the qemu board t… 

    …o odroidc4 and delete buildroot_config for the sound driver VM

Signed-off-by: Anuraag <[email protected]>
    @Anuraag-Ganesh @boinkaput
    Anuraag-Ganesh authored and boinkaput committed Sep 23, 2024
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  5. copy the linux, linux_config and rootfs.cpio.gz files from the qemu b… 

    …oard to the odroidc4 and delete buildroot_config for the block driver VM

Signed-off-by: Anuraag <[email protected]>
    @Anuraag-Ganesh @boinkaput
    Anuraag-Ganesh authored and boinkaput committed Sep 23, 2024
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  6. comments + minor fix 

    Signed-off-by: Anuraag <[email protected]>
    @Anuraag-Ganesh @boinkaput
    Anuraag-Ganesh authored and boinkaput committed Sep 23, 2024
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  7. document the process for creating a minimal driver VM 

    Signed-off-by: Anuraag <[email protected]>
    @Anuraag-Ganesh @boinkaput
    Anuraag-Ganesh authored and boinkaput committed Sep 23, 2024
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  8. updated instructions for creating a minimal rootfs and included build… 

    …root config for sound driver VM, for building alsactl

Signed-off-by: Anuraag <[email protected]>
    @boinkaput
    boinkaput committed Sep 23, 2024
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