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Implement the loading of initrd image #25

Merged
merged 5 commits into from
Jul 29, 2023
Merged

Implement the loading of initrd image #25

merged 5 commits into from
Jul 29, 2023

Commits on Jul 28, 2023

  1. Support loading initrd image 

    In this commit, the `rootfs.cpio` provided by the buildroot can be passed to semu
with -i option. In order to achieve such function, the following modifcations
are conducted:

1. Reserve 8 MiB of memory at the end of the guest OS before the dtb region, and
   map initrd image to the new reserved area.
2. Adjust device tree source by specifying `initrd-start` and `initrd-end`.
3. Support passing initrd image with -i option.
    @shengwen-tw
    shengwen-tw committed Jul 28, 2023
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  2. linux.config: Strip initramfs from the the kernel 

    This commit forces the Linux kernel to load initrd image from external environment.
    @shengwen-tw
    shengwen-tw committed Jul 28, 2023
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  3. Copy built rootfs.cpio to project's root directory

    @shengwen-tw
    shengwen-tw committed Jul 28, 2023
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  4. Update .gitignore

    @shengwen-tw
    shengwen-tw committed Jul 28, 2023
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  5. Update README.md

    @shengwen-tw
    shengwen-tw committed Jul 28, 2023
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