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switch xen to PVH mode #1879

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switch xen to PVH mode #1879

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Commits on Apr 11, 2024

  1. coreos-base/oem-xen: Introduce xen configs 

    Simple stuff, setting console to hvc0 and enabling autologin.

Signed-off-by: Jeremi Piotrowski <[email protected]>
    @jepio
    jepio committed Apr 11, 2024
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  2. Switch to xen-pvh grub implementation 

    Our Xen configs don't currently work because xen grub uses a special
code path in grub that does not support zstd compressed kernels. We
switched kernel compression to zstd two years ago. The only grub xen
config that supports this is xen-pvh. Switch our grub xen to the pvh and
adapt configs to run domU in PVH mode.

With this change the pygrub config works.

Signed-off-by: Jeremi Piotrowski <[email protected]>
    @jepio
    jepio committed Apr 11, 2024
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  3. build_library: Switch pvgrub xen config to use our grub 

    In PVH mode grub can't be chainloaded from grub, so we either need to
use pygrub or the host provided grub needs to support Flatcar specifics.
Publish our xen-pvh grub along with the image and use it from the pvgrub
config.

Signed-off-by: Jeremi Piotrowski <[email protected]>
    @jepio
    jepio committed Apr 11, 2024
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  4. build_library: Add xen hvm config 

    For completeness.

Signed-off-by: Jeremi Piotrowski <[email protected]>
    @jepio
    jepio committed Apr 11, 2024
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  5. changelog: Add entry for xen bugfixes 

    Signed-off-by: Jeremi Piotrowski <[email protected]>
    @jepio
    jepio committed Apr 11, 2024
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