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Re: [Qemu-riscv] [Qemu-devel] [PATCH for-4.1 2/2] target/riscv: Add supp

From: Jonathan Behrens
Subject: Re: [Qemu-riscv] [Qemu-devel] [PATCH for-4.1 2/2] target/riscv: Add support for -bios "firmware_filename" flag
Date: Sat, 18 May 2019 17:56:55 -0400

> I've never been fully convinced of this, why not just use the generic loader?

If I understand you are proposing passing bbl (or other firmware) with the -kernel flag, and then vmlinux (or another kernel) with the -initrd flag? Wouldn't this result in losing the ability to pass a real init ramdisk to Linux? It also seems to open the possibility for strange bugs/compatibility issues later if firmware starts recognizing any "initrd" entries in the device tree as kernel code to jump into.

I do wonder though how compatible the current design is with providing default firmware for riscv in the future.

> This should be in a generic boot.c file and support added to all RISC-V boards.

I can do this for v2.


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