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[Qemu-devel] [PATCH v11 0/8] Add a generic loader
From: |
Alistair Francis |
Subject: |
[Qemu-devel] [PATCH v11 0/8] Add a generic loader |
Date: |
Tue, 20 Sep 2016 07:54:07 -0700 |
This work is based on the original work by Li Guang with extra
features added by Peter C and myself.
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).
Tested with the latest Xilinx ZynqMP machine, if I enable EL3 and EL2 I can
boot ATF through to u-boot using the loader to load the images.
It can also be used to set registers.
This patch series makes the load_elf() function more generic by not
requiring an architecture. It also adds new functions load_elf_as(),
load_uimage_as and load_image_targphys_as which allows custom
AddressSpaces when loading images.
V9:
- Logic and documentation corrections
- Add address space loading support for uImages and targphys
V8:
- Allow custom AddressSpaces when loading images
- Move ELF architecture handling code
- Rebase
- Corrections to loading code
- Corrections to documentation
V7:
- Fix typo in comment
- Rebase
V6:
- Add error checking
V5:
- Rebase
V4:
- Re-write documentation
- Allow the loader to work with every architecture
- Move the file to hw/core
- Increase the maximum number of CPUs
- Make the CPU operations conditional
- Convert the cpu option to cpu-num
- Require the user to specify endianess
V2:
- Add an entry to the maintainers file
- Add some documentation
- Perform bounds checking on the data_len
- Register and unregister the reset in the realise/unrealise
Changes since RFC:
- Add support for BE
Alistair Francis (8):
loader: Allow ELF loader to auto-detect the ELF arch
loader: Use the specified MemoryRegion
loader: Allow a custom AddressSpace when loading ROMs
loader: Add AddressSpace loading support to ELFs
loader: Add AddressSpace loading support to uImages
loader: Add AddressSpace loading support to targphys
generic-loader: Add a generic loader
docs: Add a generic loader explanation document
MAINTAINERS | 6 ++
docs/generic-loader.txt | 81 ++++++++++++++++
hw/core/Makefile.objs | 2 +
hw/core/generic-loader.c | 197 +++++++++++++++++++++++++++++++++++++++
hw/core/loader.c | 89 ++++++++++++++----
include/hw/core/generic-loader.h | 46 +++++++++
include/hw/elf_ops.h | 10 +-
include/hw/loader.h | 73 ++++++++++++++-
8 files changed, 479 insertions(+), 25 deletions(-)
create mode 100644 docs/generic-loader.txt
create mode 100644 hw/core/generic-loader.c
create mode 100644 include/hw/core/generic-loader.h
--
2.7.4
- [Qemu-devel] [PATCH v11 0/8] Add a generic loader,
Alistair Francis <=
- [Qemu-devel] [PATCH v11 5/8] loader: Add AddressSpace loading support to uImages, Alistair Francis, 2016/09/20
- [Qemu-devel] [PATCH v11 4/8] loader: Add AddressSpace loading support to ELFs, Alistair Francis, 2016/09/20
- [Qemu-devel] [PATCH v11 7/8] generic-loader: Add a generic loader, Alistair Francis, 2016/09/20
- [Qemu-devel] [PATCH v11 1/8] loader: Allow ELF loader to auto-detect the ELF arch, Alistair Francis, 2016/09/20
- [Qemu-devel] [PATCH v11 6/8] loader: Add AddressSpace loading support to targphys, Alistair Francis, 2016/09/20
- [Qemu-devel] [PATCH v11 2/8] loader: Use the specified MemoryRegion, Alistair Francis, 2016/09/20
- [Qemu-devel] [PATCH v11 3/8] loader: Allow a custom AddressSpace when loading ROMs, Alistair Francis, 2016/09/20
- [Qemu-devel] [PATCH v11 8/8] docs: Add a generic loader explanation document, Alistair Francis, 2016/09/20
- Re: [Qemu-devel] [PATCH v11 0/8] Add a generic loader, Peter Maydell, 2016/09/20