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+Copyright (c) 2016 Xilinx Inc.
+
+This work is licensed under the terms of the GNU GPL, version 2 or later. See
+the COPYING file in the top-level directory.
+
+
+The 'loader' device allows the user to load multiple images or values into
+QEMU at startup.
+
+Loading Memory Values
+---------------------
+The loader device allows memory values to be set from the command line. This
+can be done by following the syntax below:
+
+ -device loader,addr=<addr>,data=<data>,data-len=<len>
+ -device loader,addr=<addr>,cpu-num=<cpu-num>
+
+NOTE: It is also possible to mix the commands above, e.g. include the cpu-num
+ argument with the data argument.
+
+ <addr> - The address to store the data or the value to set the CPUs PC
+ <data> - The value to be written to the addr. The maximum size of the
+ data is 8 bytes.
+ <data-len> - The length of the data in bytes. This argument must be included
+ if the data argument is.
+ <data-be> - Set to true if the data to be stored on the guest should be
+ written as big endian data. The default is to write little
+ endian data.
+ <cpu-num> - This will cause the CPU to be reset and the PC to be set to
+ the value of addr.
+
+An example of loading value 0x8000000e to address 0xfd1a0104 is:
+ -device loader,addr=0xfd1a0104,data=0x8000000e,data-len=4
+
+Loading Files
+-------------
+The loader device also allows files to be loaded into memory. This can be done
+similarly to setting memory values. The syntax is shown below:
+
+ -device loader,file=<file>,addr=<addr>,cpu-num=<cpu-num>,force-raw=<raw>
+
+ <file> - A file to be loaded into memory
+ <addr> - The addr in memory that the file should be loaded. This is
+ ignored if you are using an ELF (unless force-raw is true).
+ This is required if you aren't loading an ELF.
+ <cpu-num> - This specifies the CPU that should be used. This is an
+ optional argument and will cause the CPU's PC to be set to
+ where the image is stored. This option should only be used
+ for the boot image.
+ <force-raw> - Forces the file to be treated as a raw image. This can be
+ used to specify the load address of ELF files.
+
+An example of loading an ELF file which CPU0 will boot is shown below:
+ -device loader,file=./images/boot.elf,cpu-num=0
Signed-off-by: Alistair Francis <alistair.francis@xilinx.com> --- V6: - Fixup documentation V4: - Re-write to be more comprehensive docs/generic-loader.txt | 54 +++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 54 insertions(+) create mode 100644 docs/generic-loader.txt