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authorPeter Maydell <peter.maydell@linaro.org>2016-10-04 13:48:25 +0100
committerPeter Maydell <peter.maydell@linaro.org>2016-10-04 13:48:25 +0100
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tree764d96006cedc488328f6c346115d4e2e423bd0e /docs
parent1bb47107057c645945971cf4e13eb8b524915b71 (diff)
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Merge remote-tracking branch 'remotes/pmaydell/tags/pull-target-arm-20161004' into staging
target-arm queue: * Netduino 2 improvements (SPI, ADC devices) * fix some Mainstone key mappings * vmstateify tsc210x, tsc2005 * virt: add 2.8 machine type * virt: support in-kernel GICv3 ITS * generic-loader device * A64: fix iss_sf decoding in disas_ld_lit * correctly handle 'sub pc, pc, 1' for ARMv6 # gpg: Signature made Tue 04 Oct 2016 13:41:34 BST # gpg: using RSA key 0x3C2525ED14360CDE # gpg: Good signature from "Peter Maydell <peter.maydell@linaro.org>" # gpg: aka "Peter Maydell <pmaydell@gmail.com>" # gpg: aka "Peter Maydell <pmaydell@chiark.greenend.org.uk>" # Primary key fingerprint: E1A5 C593 CD41 9DE2 8E83 15CF 3C25 25ED 1436 0CDE * remotes/pmaydell/tags/pull-target-arm-20161004: (27 commits) target-arm: Correctly handle 'sub pc, pc, 1' for ARMv6 target-arm: A64: Fix decoding of iss_sf in disas_ld_lit cadence_gem: Fix priority queue out of bounds access docs: Add a generic loader explanation document generic-loader: Add a generic loader ARM: Virt: ACPI: Add GIC ITS description in ACPI MADT table ACPI: Add GIC Interrupt Translation Service Structure definition arm/virt: Add ITS to the virt board hw/intc/arm_gicv3_its: Implement support for in-kernel ITS emulation kvm-all: Pass requester ID to MSI routing functions target-arm: move gicv3_class_name from machine to kvm_arm.h hw/intc/arm_gicv3_its: Implement ITS base class hw/intc/arm_gic(v3)_kvm: Initialize gsi routing hw/arm/virt: add 2.8 machine type vmstateify tsc210x vmstateify tsc2005 hw/arm: Fix Integrator/CM initialization mainstone: Add mapping for dot, slash and backspace. mainstone: Fix incorrect key mapping for Enter key. MAINTAINERS: Add Alistair to the maintainers list ... Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
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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 Data into 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=<data-len>
+ [,data-be=<data-be>][,cpu-num=<cpu-num>]
+
+ <addr> - The address to store the data in.
+ <data> - The value to be written to the address. 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> - The number of the CPU's address space where the data should
+ be loaded. If not specified the address space of the first
+ CPU is used.
+
+All values are parsed using the standard QemuOps parsing. This allows the user
+to specify any values in any format supported. By default the values
+will be parsed as decimal. To use hex values the user should prefix the number
+with a '0x'.
+
+An example of loading value 0x8000000e to address 0xfd1a0104 is:
+ -device loader,addr=0xfd1a0104,data=0x8000000e,data-len=4
+
+Setting a CPU's Program Counter
+---------------------
+The loader device allows the CPU's PC to be set from the command line. This
+can be done by following the syntax below:
+
+ -device loader,addr=<addr>,cpu-num=<cpu-num>
+
+ <addr> - The value to use as the CPU's PC.
+ <cpu-num> - The number of the CPU whose PC should be set to the
+ specified value.
+
+All values are parsed using the standard QemuOps parsing. This allows the user
+to specify any values in any format supported. By default the values
+will be parsed as decimal. To use hex values the user should prefix the number
+with a '0x'.
+
+An example of setting CPU 0's PC to 0x8000 is:
+ -device loader,addr=0x8000,cpu-num=0
+
+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 or in the case of an ELF file to
+ the value in the header. This option should only be used
+ for the boot image.
+ This will also cause the image to be written to the specified
+ CPU's address space. If not specified, the default is CPU 0.
+ <force-raw> - Forces the file to be treated as a raw image. This can be
+ used to specify the load address of ELF files.
+
+All values are parsed using the standard QemuOps parsing. This allows the user
+to specify any values in any format supported. By default the values
+will be parsed as decimal. To use hex values the user should prefix the number
+with a '0x'.
+
+An example of loading an ELF file which CPU0 will boot is shown below:
+ -device loader,file=./images/boot.elf,cpu-num=0