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2 Commits (7e64e9b6703e6dd363c063d545a5fe63bbc70011)

Author SHA1 Message Date
Michael Brown 7e64e9b670 [fdt] Populate boot arguments in constructed device tree 
When creating a device tree to pass to a booted operating system,
ensure that the "chosen" node exists, and populate the "bootargs"
property with the image command line.

Signed-off-by: Michael Brown <mcb30@ipxe.org>
 2025-04-01 16:55:28 +01:00
Michael Brown b20f506a72 [efi] Install a device tree for the booted OS, if available 
If we have a device tree available (e.g. because the user has
explicitly downloaded a device tree using the "fdt" command), then
provide it to the booted operating system as an EFI configuration
table.

Since x86 does not typically use device trees, we create weak symbols
for efi_fdt_install() and efi_fdt_uninstall() to avoid dragging FDT
support into all x86 UEFI binaries.

Signed-off-by: Michael Brown <mcb30@ipxe.org>
 2025-03-28 15:29:53 +00:00