asahi dev kernel + modules + tethered boot

gistfile1.txt

merge https://github.com/AsahiLinux/m1n1/pull/268 into m1n1

build kernel with `make dir-pkg` and create an initramfs containing the modules, for example
# make -j20 dir-pkg && \
#  usr/gen_initramfs.sh -o initramfs_mod.cpio -u squash -g squash tar-install/lib/modules && \
#  gzip -f --fast initramfs_mod.cpio

prepare initramfs for inintramfs module handling, for asahi linux initramfs
misses extract initramfs `lsinitcpio -x`, remove existing modules,
patch the asahi hook with hooks_asahi.diff and repackage the initramfs ()

copy the firmware.cpio from the ESP and compress it with gzip

boot kernel with modules and firmware with 

cat ~/asahi/initramfs-modules.img.gz ~/asahi/firmware.cpio.gz ~/src/linux/initramfs_mod.cpio.gz > initramfs && \
  .tools/run_guest_kernel.sh ~/src/linux/ "root=/dev/nvme0n1p10 rootflags=rw hostname=mbp14 loglevel=7" initramfs

hooks_asahi.diff

--- a/hooks/asahi 2023-04-26 21:19:04.895639732 +0200
+++ b/hooks/asahi  2022-11-20 23:28:28.369632900 +0100
@@ -2,6 +2,8 @@
 # SPDX-License-Identifier: MIT
 
 run_earlyhook() {
+    ln -s /$(uname -r) /lib/modules/
+
     if [ -e /vendorfw ]; then
         msg ":: Asahi: Vendor firmware was loaded by the bootloader"
         return 0
@@ -54,4 +56,11 @@
     mkdir -p /new_root/lib/firmware/vendor
     mount -t tmpfs vendorfw /new_root/lib/firmware/vendor
     cp -r /vendorfw/* /vendorfw/.vendorfw.manifest /new_root/lib/firmware/vendor
+
+    if [ -d /$(uname -r) ]; then
+      if [ -e /new_root/lib/modules/$(uname -r) ]; then
+        rm -r /new_root/lib/modules/$(uname -r)
+      fi
+      cp -r /$(uname -r) /new_root/lib/modules/
+    fi
 }