[Qemu-devel] [RFC v1 0/2] Add a generic loader

[Alistair Francis <alistair.francis@xilinx.com>]

This work is based on the original work by Li Guang with extra
features added by Peter C.

The idea of this loader is to allow the user to load multiple images
or values into QEMU at startup.

Memory values can be loaded like this: -device loader,addr=0xfd1a0104,data=0x8000000e,data-len=4

Images can be loaded like this: -device loader,file=./images/u-boot.elf,cpu=0

This can be useful and we use it a lot in Xilinx to load multiple images
into a machine at creation (ATF, Kernel and DTB for example).

It can also be used to set registers.

At the moment only LE ARM is supported. I haven't tested BE support,
so I'm not sure what state it is in. The limiation for arch is based off
settting the ELF_ARCH macro.

The reset patch is required otherwise the reset will never be registered
and the loader can't change the PC in the case of images.

I have tested this on ARM and it works. What do people think? Is it worth
pursuing to try and get accepted?


Alistair Francis (2):
  qdev-monitor.c: Register reset function if the device has one
  generic-loader: Add a generic loader

 default-configs/arm-softmmu.mak  |   1 +
 hw/misc/Makefile.objs            |   2 +
 hw/misc/generic-loader.c         | 121 +++++++++++++++++++++++++++++++++++++++
 include/hw/misc/generic-loader.h |  50 ++++++++++++++++
 qdev-monitor.c                   |   2 +
 5 files changed, 176 insertions(+)
 create mode 100644 hw/misc/generic-loader.c
 create mode 100644 include/hw/misc/generic-loader.h

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2.5.0