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docs: Be consistent about capitalization of 'Arm'
The company 'Arm' went through a rebranding some years back involving a recapitalization from 'ARM' to 'Arm'. As a result our documentation is a bit inconsistent between the two forms. It's not worth trying to update everywhere in QEMU, but it's easy enough to make docs/ consistent. Note that "ARMv8" and similar architecture names, and older CPU names like "ARM926" still retain all-caps. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Reviewed-by: Niek Linnenbank <nieklinnenbank@gmail.com> Message-id: 20200309215818.2021-6-peter.maydell@linaro.org
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@ -13,7 +13,7 @@ controller is implemented.
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The PCI addon card hardware has been selected as the first CAN
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interface to implement because such device can be easily connected
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to systems with different CPU architectures (x86, PowerPC, ARM, etc.).
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to systems with different CPU architectures (x86, PowerPC, Arm, etc.).
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The project has been initially started in frame of RTEMS GSoC 2013
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slot by Jin Yang under our mentoring The initial idea was to provide generic
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@ -87,7 +87,7 @@ Sequentially consistent loads and stores can be done using:
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atomic_xchg(ptr, val) for stores
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However, they are quite expensive on some platforms, notably POWER and
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ARM. Therefore, qemu/atomic.h provides two primitives with slightly
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Arm. Therefore, qemu/atomic.h provides two primitives with slightly
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weaker constraints:
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typeof(*ptr) atomic_mb_read(ptr)
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@ -8,7 +8,7 @@ time different targets can share large amounts of code. For example,
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a POWER and an x86 board can run the same code to emulate a PCI network
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card, even though the boards use different PCI host bridges, and they
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can run the same code to emulate a SCSI disk while using different
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SCSI adapters. ARM, s390 and x86 boards can all present a virtio-blk
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SCSI adapters. Arm, s390 and x86 boards can all present a virtio-blk
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disk to their guests, but with three different virtio guest interfaces.
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Each QEMU target enables a subset of the boards, devices and buses that
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@ -302,7 +302,7 @@ way QEMU defines the view of memory that a device or CPU has.
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or bus fabric.)
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Each CPU has an AddressSpace. Some kinds of CPU have more than
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one AddressSpace (for instance ARM guest CPUs have an AddressSpace
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one AddressSpace (for instance Arm guest CPUs have an AddressSpace
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for the Secure world and one for NonSecure if they implement TrustZone).
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Devices which can do DMA-type operations should generally have an
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AddressSpace. There is also a "system address space" which typically
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@ -227,7 +227,7 @@ minimise contention.
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(Current solution)
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MMIO access automatically serialises hardware emulation by way of the
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BQL. Currently ARM targets serialise all ARM_CP_IO register accesses
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BQL. Currently Arm targets serialise all ARM_CP_IO register accesses
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and also defer the reset/startup of vCPUs to the vCPU context by way
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of async_run_on_cpu().
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@ -268,7 +268,7 @@ ordered backends this could become a NOP.
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Aside from explicit standalone memory barrier instructions there are
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also implicit memory ordering semantics which comes with each guest
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memory access instruction. For example all x86 load/stores come with
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fairly strong guarantees of sequential consistency where as ARM has
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fairly strong guarantees of sequential consistency whereas Arm has
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special variants of load/store instructions that imply acquire/release
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semantics.
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@ -317,7 +317,7 @@ x86 cmpxchg instruction.
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The second type offer a pair of load/store instructions which offer a
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guarantee that a region of memory has not been touched between the
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load and store instructions. An example of this is ARM's ldrex/strex
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load and store instructions. An example of this is Arm's ldrex/strex
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pair where the strex instruction will return a flag indicating a
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successful store only if no other CPU has accessed the memory region
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since the ldrex.
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@ -339,7 +339,7 @@ CURRENT OPEN QUESTIONS:
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The TCG provides a number of atomic helpers (tcg_gen_atomic_*) which
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can be used directly or combined to emulate other instructions like
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ARM's ldrex/strex instructions. While they are susceptible to the ABA
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Arm's ldrex/strex instructions. While they are susceptible to the ABA
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problem so far common guests have not implemented patterns where
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this may be a problem - typically presenting a locking ABI which
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assumes cmpxchg like semantics.
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@ -83,7 +83,7 @@ memory until the end of the translation block. This is done for internal
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emulation state that is rarely accessed directly by the program and/or changes
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very often throughout the execution of a translation block---this includes
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condition codes on x86, delay slots on SPARC, conditional execution on
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ARM, and so on. This state is stored for each target instruction, and
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Arm, and so on. This state is stored for each target instruction, and
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looked up on exceptions.
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MMU emulation
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@ -19,7 +19,7 @@ Deterministic replay has the following features:
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the memory, state of the hardware devices, clocks, and screen of the VM.
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* Writes execution log into the file for later replaying for multiple times
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on different machines.
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* Supports i386, x86_64, and ARM hardware platforms.
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* Supports i386, x86_64, and Arm hardware platforms.
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* Performs deterministic replay of all operations with keyboard and mouse
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input devices.
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@ -82,7 +82,7 @@ Selector Register IOport: 0x510
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Data Register IOport: 0x511
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DMA Address IOport: 0x514
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=== ARM Register Locations ===
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=== Arm Register Locations ===
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Selector Register address: Base + 8 (2 bytes)
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Data Register address: Base + 0 (8 bytes)
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@ -25,7 +25,7 @@ QEMU files related to TPM TIS interface:
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Both an ISA device and a sysbus device are available. The former is
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used with pc/q35 machine while the latter can be instantiated in the
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ARM virt machine.
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Arm virt machine.
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CRB interface
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-------------
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@ -331,7 +331,7 @@ In case a pSeries machine is emulated, use the following command line:
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-device virtio-blk-pci,scsi=off,bus=pci.0,addr=0x3,drive=drive-virtio-disk0,id=virtio-disk0 \
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-drive file=test.img,format=raw,if=none,id=drive-virtio-disk0
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In case an ARM virt machine is emulated, use the following command line:
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In case an Arm virt machine is emulated, use the following command line:
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.. code-block:: console
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@ -346,7 +346,7 @@ In case an ARM virt machine is emulated, use the following command line:
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-drive if=pflash,format=raw,file=flash0.img,readonly \
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-drive if=pflash,format=raw,file=flash1.img
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On ARM, ACPI boot with TPM is not yet supported.
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On Arm, ACPI boot with TPM is not yet supported.
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In case SeaBIOS is used as firmware, it should show the TPM menu item
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after entering the menu with 'ESC'.
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@ -5,9 +5,9 @@ CPU features are optional features that a CPU of supporting type may
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choose to implement or not. In QEMU, optional CPU features have
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corresponding boolean CPU proprieties that, when enabled, indicate
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that the feature is implemented, and, conversely, when disabled,
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indicate that it is not implemented. An example of an ARM CPU feature
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indicate that it is not implemented. An example of an Arm CPU feature
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is the Performance Monitoring Unit (PMU). CPU types such as the
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Cortex-A15 and the Cortex-A57, which respectively implement ARM
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Cortex-A15 and the Cortex-A57, which respectively implement Arm
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architecture reference manuals ARMv7-A and ARMv8-A, may both optionally
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implement PMUs. For example, if a user wants to use a Cortex-A15 without
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a PMU, then the `-cpu` parameter should contain `pmu=off` on the QEMU
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@ -1,7 +1,7 @@
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Integrator/CP (``integratorcp``)
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================================
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The ARM Integrator/CP board is emulated with the following devices:
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The Arm Integrator/CP board is emulated with the following devices:
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- ARM926E, ARM1026E, ARM946E, ARM1136 or Cortex-A8 CPU
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@ -4,7 +4,7 @@ Freecom MusicPal (``musicpal``)
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The Freecom MusicPal internet radio emulation includes the following
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elements:
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- Marvell MV88W8618 ARM core.
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- Marvell MV88W8618 Arm core.
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- 32 MB RAM, 256 KB SRAM, 8 MB flash.
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@ -4,7 +4,7 @@ Nokia N800 and N810 tablets (``n800``, ``n810``)
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Nokia N800 and N810 internet tablets (known also as RX-34 and RX-44 /
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48) emulation supports the following elements:
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- Texas Instruments OMAP2420 System-on-chip (ARM 1136 core)
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- Texas Instruments OMAP2420 System-on-chip (ARM1136 core)
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- RAM and non-volatile OneNAND Flash memories
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@ -4,7 +4,7 @@ Palm Tungsten|E PDA (``cheetah``)
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The Palm Tungsten|E PDA (codename \"Cheetah\") emulation includes the
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following elements:
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- Texas Instruments OMAP310 System-on-chip (ARM 925T core)
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- Texas Instruments OMAP310 System-on-chip (ARM925T core)
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- ROM and RAM memories (ROM firmware image can be loaded with
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-option-rom)
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@ -1,7 +1,7 @@
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Arm Realview boards (``realview-eb``, ``realview-eb-mpcore``, ``realview-pb-a8``, ``realview-pbx-a9``)
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======================================================================================================
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Several variants of the ARM RealView baseboard are emulated, including
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Several variants of the Arm RealView baseboard are emulated, including
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the EB, PB-A8 and PBX-A9. Due to interactions with the bootloader, only
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certain Linux kernel configurations work out of the box on these boards.
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@ -14,7 +14,7 @@ The following devices are emulated:
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- ARM926E, ARM1136, ARM11MPCore, Cortex-A8 or Cortex-A9 MPCore CPU
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- ARM AMBA Generic/Distributed Interrupt Controller
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- Arm AMBA Generic/Distributed Interrupt Controller
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- Four PL011 UARTs
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@ -4,7 +4,7 @@ Siemens SX1 (``sx1``, ``sx1-v1``)
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The Siemens SX1 models v1 and v2 (default) basic emulation. The
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emulation includes the following elements:
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- Texas Instruments OMAP310 System-on-chip (ARM 925T core)
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- Texas Instruments OMAP310 System-on-chip (ARM925T core)
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- ROM and RAM memories (ROM firmware image can be loaded with
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-pflash) V1 1 Flash of 16MB and 1 Flash of 8MB V2 1 Flash of 32MB
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Arm Versatile boards (``versatileab``, ``versatilepb``)
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=======================================================
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The ARM Versatile baseboard is emulated with the following devices:
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The Arm Versatile baseboard is emulated with the following devices:
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- ARM926E, ARM1136 or Cortex-A8 CPU
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@ -4,7 +4,7 @@ Sharp XScale-based PDA models (``akita``, ``borzoi``, ``spitz``, ``terrier``)
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The XScale-based clamshell PDA models (\"Spitz\", \"Akita\", \"Borzoi\"
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and \"Terrier\") emulation includes the following peripherals:
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- Intel PXA270 System-on-chip (ARM V5TE core)
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- Intel PXA270 System-on-chip (ARMv5TE core)
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- NAND Flash memory
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@ -35,7 +35,7 @@ QEMU user space emulation has the following notable features:
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On Linux, QEMU can emulate the ``clone`` syscall and create a real
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host thread (with a separate virtual CPU) for each emulated thread.
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Note that not all targets currently emulate atomic operations
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correctly. x86 and ARM use a global lock in order to preserve their
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correctly. x86 and Arm use a global lock in order to preserve their
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semantics.
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QEMU was conceived so that ultimately it can emulate itself. Although it
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@ -173,11 +173,11 @@ Other binaries
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user mode (Alpha)
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``qemu-alpha`` TODO.
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user mode (ARM)
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user mode (Arm)
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``qemu-armeb`` TODO.
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user mode (ARM)
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``qemu-arm`` is also capable of running ARM \"Angel\" semihosted ELF
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user mode (Arm)
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``qemu-arm`` is also capable of running Arm \"Angel\" semihosted ELF
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binaries (as implemented by the arm-elf and arm-eabi Newlib/GDB
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configurations), and arm-uclinux bFLT format binaries.
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