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2016-02-26target-arm: Make reserved ranges in ID_AA64* spaces RAZ, not UNDEFPeter Maydell1-0/+1
The v8 ARM ARM defines that unused spaces in the ID_AA64* system register ranges are Reserved and must RAZ, rather than being UNDEF. Implement this. In particular, ARM v8.2 adds a new feature register ID_AA64MMFR2, and newer versions of the Linux kernel will attempt to read this, which causes them not to boot up on versions of QEMU missing this fix. Since the encoding .opc0 = 3, .opc1 = 0, .crn = 0, .crm = 2, .opc2 = 6 is actually defined in ARMv8 (as ID_MMFR4), we give it an entry in the ARMCPU struct so CPUs can override it, though since none do this too will just RAZ. Cc: qemu-stable@nongnu.org Reported-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Message-id: 1455890863-11203-1-git-send-email-peter.maydell@linaro.org Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Tested-by: Alex Bennée <alex.bennee@linaro.org>
2016-02-18target-arm: Add the pmceid0 and pmceid1 registersAlistair Francis1-0/+2
Signed-off-by: Aaron Lindsay <alindsay@codeaurora.org> Signed-off-by: Alistair Francis <alistair.francis@xilinx.com> Tested-by: Nathan Rossi <nathan@nathanrossi.com> Message-id: da0563119a9f56fd5fbdc26e7ed19a8a8457c5b9.1455060548.git.alistair.francis@xilinx.com [PMM: Use 0 for PMCEID0 values for A15 and A57 since our PMU does not currently implement any events.] Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2016-01-21target-arm: Use a single entry point for AArch64 and AArch32 exceptionsPeter Maydell1-2/+0
If EL2 or EL3 is present on an AArch64 CPU, then exceptions can be taken to an exception level which is running AArch32 (if only EL0 and EL1 are present then EL1 must be AArch64 and all exceptions are taken to AArch64). To support this we need to have a single implementation of the CPU do_interrupt() method which can handle both 32 and 64 bit exception entry. Pull the common parts of aarch64_cpu_do_interrupt() and arm_cpu_do_interrupt() out into a new function which calls either the AArch32 or AArch64 specific entry code once it has worked out which one is needed. We temporarily special-case the handling of EXCP_SEMIHOST to avoid an assertion in arm_el_is_aa64(); the next patch will pull all the semihosting handling out to the arm_cpu_do_interrupt() level (since semihosting semantics depend on the register width of the calling code, not on that of any higher EL). Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
2016-01-21target-arm: Move aarch64_cpu_do_interrupt() to helper.cPeter Maydell1-1/+1
Move the aarch64_cpu_do_interrupt() function to helper.c. We want to be able to call this from code that isn't AArch64-only, and the move allows us to avoid awkward #ifdeffery at the callsite. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
2016-01-21target-arm: Implement cpu_get_phys_page_attrs_debugPeter Maydell1-1/+2
Implement cpu_get_phys_page_attrs_debug instead of cpu_get_phys_page_debug. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Acked-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
2016-01-21target-arm: Add QOM property for Secure memory regionPeter Maydell1-0/+3
Add QOM property to the ARM CPU which boards can use to tell us what memory region to use for secure accesses. Nonsecure accesses go via the memory region specified with the base CPU class 'memory' property. By default, if no secure region is specified it is the same as the nonsecure region, and if no nonsecure region is specified we will use address_space_memory. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Acked-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
2016-01-15target-arm: support QMP dump-guest-memoryAndrew Jones1-0/+5
Add the support needed for creating prstatus elf notes. This allows us to use QMP dump-guest-memory. Signed-off-by: Andrew Jones <drjones@redhat.com> Message-id: 1452542185-10914-6-git-send-email-drjones@redhat.com Reviewed-by: Peter Maydell <peter.maydell@linaro.org> [PMM: moved setting of cpu::write_elf64_note inside !CONFIG_USER_ONLY ifdef to avoid compile failure for linux-user build] Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2015-09-07target-arm: Refactor CPU affinity handlingPavel Fedin1-0/+13
Introduces reusable definitions for CPU affinity masks/shifts and gets rid of hardcoded magic numbers. Signed-off-by: Pavel Fedin <p.fedin@samsung.com> Message-id: 7e6def4d0d91ae64615cdd2035b94d408d0a23c6.1441366248.git.p.fedin@samsung.com [PMM: folded overlong line] Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2015-08-13target-arm: Add the AArch64 view of the Secure physical timerPeter Maydell1-0/+1
On CPUs with EL3, there are two physical timers, one for Secure and one for Non-secure. Implement this extra timer and the AArch64 registers which access it. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com> Message-id: 1437047249-2357-2-git-send-email-peter.maydell@linaro.org
2015-08-13target-arm: Add the Hypervisor timerEdgar E. Iglesias1-0/+1
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Message-id: 1436791864-4582-6-git-send-email-edgar.iglesias@gmail.com Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2015-06-19target-arm/helper.c: define MPUIR registerPeter Crosthwaite1-0/+2
Define the MPUIR register for MPU supporting ARMv6 and onwards. Currently we only support unified MPU. The size of the unified MPU is defined via the number of "dregions". So just a single config is added to specify this size. (When split MPU is implemented we will add an extra iregions config). Signed-off-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com> Message-id: 9f248950b803a08c8b3c978931663182f7e882e7.1434501320.git.peter.crosthwaite@xilinx.com Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2015-06-15arm: Add has-mpu propertyPeter Crosthwaite1-0/+3
For processors that support MPUs, add a property to de-feature it. This is similar to the implementation of the EL3 feature. The processor definition in init sets ARM_FEATURE_MPU if it can support an MPU. post_init exposes the property, defaulting to true. If cleared by the instantiator, ARM_FEATURE_MPU is then removed at realize time. This is to support R profile processors that may or may-not have an MPU configured. Signed-off-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com> Message-id: 632918cc48786e868ea18aa6bd12f70597994cad.1434066412.git.peter.crosthwaite@xilinx.com Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2015-06-15arm: Implement uniprocessor with MP configPeter Crosthwaite1-0/+3
Add a boolean for indicating uniprocessors with MP extensions. This drives the U bit in MPIDR. Prepares support for Cortex-R5. Signed-off-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com> Message-id: a70a80583df265e0174f01fa1fc92b33ea6d1db5.1434066412.git.peter.crosthwaite@xilinx.com Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2015-06-15target-arm: Use the kernel's idea of MPIDR if we're using KVMPavel Fedin1-0/+1
When we're using KVM, the kernel's internal idea of the MPIDR affinity fields must match the values we tell it for the guest vcpu cluster configuration in the device tree. Since at the moment the kernel doesn't support letting userspace tell it the correct affinity fields to use, we must read the kernel's view and reflect that back in the device tree. Signed-off-by: Shlomo Pongratz <shlomo.pongratz@huawei.com> Signed-off-by: Pavel Fedin <p.fedin@samsung.com> Message-id: 02f601d0a1e6$90c7d630$b2578290$@samsung.com [PMM: Use a local #define rather than a global variable for the TCG ARM_CPUS_PER_CLUSTER setting. Tweak a comment. Update the commit message.] Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2015-06-15target-arm: Fix REVIDR reset valueSergey Fedorov1-0/+1
According to ARM Cortex-A53/A57 TRM, REVIDR reset value should be zero. So let REVIDR reset value be specified by CPU model and correct it for Cortex-A53/A57. Signed-off-by: Sergey Fedorov <serge.fdrv@gmail.com> Message-id: 1433321048-23793-2-git-send-email-serge.fdrv@gmail.com Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-12-22target-arm: Add ARMCPU secure propertyGreg Bellows1-0/+2
Added a "has_el3" state property to the ARMCPU descriptor. This property indicates whether the ARMCPU has security extensions enabled (EL3) or not. By default it is disabled at this time. Signed-off-by: Greg Bellows <greg.bellows@linaro.org> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Message-id: 1418684992-8996-10-git-send-email-greg.bellows@linaro.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-10-24target-arm: add emulation of PSCI calls for system emulationRob Herring1-0/+5
Add support for handling PSCI calls in system emulation. Both version 0.1 and 0.2 of the PSCI spec are supported. Platforms can enable support by setting the "psci-conduit" QOM property on the cpus to SMC or HVC emulation and having a PSCI binding in their dtb. Signed-off-by: Rob Herring <rob.herring@linaro.org> Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Message-id: 1412865028-17725-7-git-send-email-peter.maydell@linaro.org [PMM: made system reset/off PSCI functions power down the CPU so we obey the PSCI API requirement never to return from them; rearranged how the code is plumbed into the exception system, so that we split "is this a valid call?" from "do the call"] Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-10-24target-arm: add powered off cpu stateRob Herring1-0/+2
Add tracking of cpu power state in order to support powering off of cores in system emuluation. The initial state is determined by the start-powered-off QOM property. Signed-off-by: Rob Herring <rob.herring@linaro.org> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Message-id: 1412865028-17725-2-git-send-email-peter.maydell@linaro.org
2014-09-25target-arm: Use cpu_exec_interrupt qom hookRichard Henderson1-0/+1
Cc: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Richard Henderson <rth@twiddle.net> Message-id: 1410626734-3804-15-git-send-email-rth@twiddle.net Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-08-19target-arm: Adjust debug ID registers per-CPUPeter Maydell1-0/+1
Allow each CPU type to specify the value for the debug ID registers, by putting them in the ARMCPU struct, and use the resulting information to only expose the correct number of watchpoint and breakpoint registers for the CPU. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
2014-07-08target-arm: Implement vCPU reset via KVM_ARM_VCPU_INIT for 32-bit CPUsPeter Maydell1-4/+0
Implement kvm_arm_vcpu_init() as a simple call to arm_arm_vcpu_init() (which uses the KVM_ARM_VCPU_INIT vcpu ioctl to tell the kernel to re-initialize the vCPU), rather than via the complicated code which saves a copy of the register state on first init and then writes it back to the kernel. This is much simpler and brings the 32-bit KVM code into line with the 64-bit code. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Message-id: 1403802973-20841-1-git-send-email-peter.maydell@linaro.org
2014-06-19target-arm: Introduce per-CPU field for PSCI versionPranavkumar Sawargaonkar1-0/+6
We require to know the PSCI version available to given CPU at potentially many places. Currently, we need to know PSCI version when generating DTB for virt machine. This patch introduce per-CPU 32bit field representing the PSCI version available to the CPU. The encoding of this 32bit field is same as described in PSCI v0.2 spec. Signed-off-by: Pranavkumar Sawargaonkar <pranavkumar@linaro.org> Signed-off-by: Anup Patel <anup.patel@linaro.org> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Message-id: 1402901605-24551-8-git-send-email-pranavkumar@linaro.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-06-19target-arm: Common kvm_arm_vcpu_init() for KVM ARM and KVM ARM64Pranavkumar Sawargaonkar1-0/+3
Introduce a common kvm_arm_vcpu_init() for doing KVM_ARM_VCPU_INIT ioctl in KVM ARM and KVM ARM64. This also helps us factor-out few common code lines from kvm_arch_init_vcpu() for KVM ARM/ARM64. Signed-off-by: Pranavkumar Sawargaonkar <pranavkumar@linaro.org> Signed-off-by: Anup Patel <anup.patel@linaro.org> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Message-id: 1402901605-24551-5-git-send-email-pranavkumar@linaro.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-04-17target-arm: Dump 32-bit CPU state if 64 bit CPU is in AArch32Peter Maydell1-2/+0
For system mode, we may have a 64 bit CPU which is currently executing in AArch32 state; if we're dumping CPU state to the logs we should therefore show the correct state for the current execution state, rather than hardwiring it based on the type of the CPU. For consistency with how we handle translation, we leave the 32 bit dump function as the default, and have it hand off control to the 64 bit dump code if we're in AArch64 mode. Reported-by: Rob Herring <rob.herring@linaro.org> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-04-17target-arm: Implement CBAR for Cortex-A57Peter Maydell1-1/+1
The Cortex-A57, like most of the other ARM cores, has a CBAR register which defines the base address of the per-CPU peripherals. However it has a 64-bit view as well as a 32-bit view; expand the QOM reset-cbar property from UINT32 to UINT64 so this can be specified, and implement the 32-bit and 64-bit views of a 64-bit CBAR. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
2014-04-17target-arm: Implement RVBAR registerPeter Maydell1-0/+1
Implement the AArch64 RVBAR register, which indicates the reset address. Since the reset address is implementation defined and usually configurable by setting config signals in hardware, we also provide a QOM property so it can be set at board level if necessary. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
2014-04-17target-arm: Implement ARMv8 MVFR registersPeter Maydell1-0/+1
For ARMv8 there are two changes to the MVFR media feature registers: * there is a new MVFR2 which is accessible from 32 bit code * 64 bit code accesses these via the usual sysreg instructions rather than with a floating-point specific instruction Implement this. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
2014-04-17target-arm: Implement AArch64 EL1 exception handlingRob Herring1-0/+2
Implement exception handling for AArch64 EL1. Exceptions from AArch64 or AArch32 EL0 are supported. Signed-off-by: Rob Herring <rob.herring@linaro.org> [PMM: fixed minor style nits; updated to match changes in previous patches; added some of the simpler cases of illegal-exception-return support] Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
2014-04-17target-arm: A64: Implement DC ZVAPeter Maydell1-0/+2
Implement the DC ZVA instruction, which clears a block of memory. The fast path obtains a pointer to the underlying RAM via the TCG TLB data structure so we can do a direct memset(), with fallback to a simple byte-store loop in the slow path. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Richard Henderson <rth@twiddle.net> Acked-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
2014-02-26target-arm: Implement AArch64 ID and feature registersPeter Maydell1-0/+10
Implement the AArch64-specific ID and feature registers. Although many of these are currently not used by the architecture (and so always zero for all implementations), we define the full set of fields in the ARMCPU struct for symmetry. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
2013-12-17ARM: cpu: add "reset_hivecs" propertyAntony Pavlov1-0/+1
Add an ARM CPU property for the reset value of hivecs as it is a board/SoC configurable setting. The existence of the property is conditional on the ARM CPU not being M class. Signed-off-by: Antony Pavlov <antonynpavlov@gmail.com> Signed-off-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com> Message-id: b04216c6bda4bd163f44a55bba552d0e8267481f.1387160489.git.peter.crosthwaite@xilinx.com [ PC Changes: * Elaborated commit message * refactored to use qdev_property_add_static ] Signed-off-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2013-12-10target-arm: Don't hardcode KVM target CPU to be A15Peter Maydell1-0/+5
Instead of assuming that a KVM target CPU must always be a Cortex-A15 and hardcoding this in kvm_arch_init_vcpu(), store the KVM_ARM_TARGET_* value in the ARMCPU class, and use that. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Christoffer Dall <christoffer.dall@linaro.org> Message-id: 1385140638-10444-10-git-send-email-peter.maydell@linaro.org
2013-12-10target-arm: Allow secondary KVM CPUs to be booted via PSCIPeter Maydell1-0/+3
New ARM boards are generally expected to boot their secondary CPUs via the PSCI interface, rather than ad-hoc "loop around in holding pen code" as hw/arm/boot.c implements. In particular this is necessary for mach-virt kernels. For KVM we achieve this by creating the VCPUs with a feature flag marking them as starting in PSCI powered-down state; the guest kernel will then make a PSCI call (implemented in the host kernel) to start the secondaries at an address of its choosing once it has got the primary CPU up. Implement this setting of the feature flag, controlled by a qdev property for ARMCPU, which board code can set if it is a PSCI system. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Christoffer Dall <christoffer.dall@linaro.org> Message-id: 1385140638-10444-7-git-send-email-peter.maydell@linaro.org
2013-12-10target-arm: Add ARMCPU field for Linux device-tree 'compatible' stringPeter Maydell1-0/+3
Linux requires device tree CPU nodes to include a 'compatible' string describing the CPU. Add a field in the ARMCPU struct for this so that boards which construct a device tree can insert the correct CPU nodes. Note that there is currently no officially specified 'compatible' string for the TI925T, Cortex-M3 or SA1110 CPUs. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Christoffer Dall <christoffer.dall@linaro.org> Message-id: 1385140638-10444-6-git-send-email-peter.maydell@linaro.org
2013-09-10target-arm: Add AArch64 gdbstub supportAlexander Graf1-0/+2
We want to be able to debug AArch64 guests. So let's add the respective gdb stub functions and xml descriptions that allow us to do so. Signed-off-by: Alexander Graf <agraf@suse.de> Signed-off-by: John Rigby <john.rigby@linaro.org> Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Message-id: 1378235544-22290-12-git-send-email-peter.maydell@linaro.org Message-id: 1368505980-17151-6-git-send-email-john.rigby@linaro.org [PMM: dropped unused fp regs XML for now; moved 64 bit only functions to new gdbstub64.c; these are hooked up in AArch64CPU, not via ifdefs in ARMCPU] Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2013-09-10target-arm: Add AArch64 translation stubAlexander Graf1-0/+5
We should translate AArch64 mode separately from AArch32 mode. In AArch64 mode, registers look vastly different, instruction encoding is completely different, basically the system turns into a different machine. So let's do a simple if() in translate.c to decide whether we can handle the current code in the legacy AArch32 code or in the new AArch64 code. So far, the translation always complains about unallocated instructions. There is no emulator functionality in this patch! Signed-off-by: Alexander Graf <agraf@suse.de> Signed-off-by: John Rigby <john.rigby@linaro.org> Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Message-id: 1378235544-22290-11-git-send-email-peter.maydell@linaro.org Message-id: 1368505980-17151-5-git-send-email-john.rigby@linaro.org [PMM: * provide no-op versions of a64 functions ifndef TARGET_AARCH64; this lets us avoid #ifdefs in translate.c * insert the missing call to disas_a64_insn() * stash the insn in the DisasContext rather than reloading it in real_unallocated_encoding() ] Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2013-09-10target-arm: Add new AArch64CPUInfo base class and subclassesPeter Maydell1-0/+12
Create a new AArch64CPU class; all 64-bit capable ARM CPUs are subclasses of this. (Currently we only support one, the "any" CPU used by linux-user.) Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Message-id: 1378235544-22290-8-git-send-email-peter.maydell@linaro.org
2013-08-20target-arm: Implement the generic timerPeter Maydell1-0/+9
The ARMv7 architecture specifies a 'generic timer' which is implemented via cp15 registers. Newer kernels will prefer to use this rather than a devboard-level timer. Implement the generic timer for TCG; for KVM we will already use the hardware's virtualized timer for this. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Tested-by: Laurent Desnogues <laurent.desnogues@gmail.com> Message-id: 1376065080-26661-4-git-send-email-peter.maydell@linaro.org
2013-07-27cpu: Introduce CPUClass::gdb_{read,write}_register()Andreas Färber1-0/+3
Completes migration of target-specific code to new target-*/gdbstub.c. Acked-by: Michael Walle <michael@walle.cc> (for lm32) Acked-by: Max Filippov <jcmvbkbc@gmail.com> (for xtensa) Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-07-23cpu: Turn cpu_get_phys_page_debug() into a CPUClass hookAndreas Färber1-0/+2
Change breakpoint_invalidate() argument to CPUState alongside. Since all targets now assign a softmmu-only field, we can drop helpers cpu_class_set_{do_unassigned_access,vmsd}() and device_class_set_vmsd(). Prepares for changing cpu_memory_rw_debug() argument to CPUState. Acked-by: Max Filippov <jcmvbkbc@gmail.com> (for xtensa) Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-07-09cpu: Drop unnecessary dynamic casts in *_env_get_cpu()Andreas Färber1-1/+1
A transition from CPUFooState to FooCPU can be considered safe, just like FooCPU::env access in the opposite direction. The only benefit of the FOO_CPU() casts would be protection against bogus CPUFooState pointers, but then surrounding code would likely break, too. This should slightly improve interrupt etc. performance when going from CPUFooState to FooCPU. For any additional CPU() casts see 3556c233d931ad5ffa46a35cb25cfc057732ebb8 (qom: allow turning cast debugging off). Reported-by: Anthony Liguori <aliguori@us.ibm.com> Acked-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-06-28cpu: Turn cpu_dump_{state,statistics}() into CPUState hooksAndreas Färber1-0/+3
Make cpustats monitor command available unconditionally. Prepares for changing kvm_handle_internal_error() and kvm_cpu_exec() arguments to CPUState. Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-06-25target-arm: Reinitialize all KVM VCPU registers on resetPeter Maydell1-1/+5
Since the ARM KVM API doesn't include a "reset this VCPU" ioctl, we have to capture the initial values of every register it knows about so that we can reset the VCPU by feeding those values back again. Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2013-06-25target-arm: Convert TCG to using (index,value) list for cp migrationPeter Maydell1-0/+20
Convert the TCG ARM target to using an (index,value) list for migrating coprocessors. The primary benefit of the (index,value) list is for passing state between KVM and QEMU, but it works for TCG-to-TCG migration as well and is a useful self-contained first step. Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2013-04-19target-arm: port ARM CPU save/load to use VMStateJuan Quintela1-0/+4
Port the ARM CPU save/load code to use VMState. Some state is saved in a slightly different order to simplify things -- for example arrays are saved one after the other rather than 'striped', and we always save all 32 VFP registers even if the CPU happens to only have 16. Use one subsection for each feature. This means that we don't need to bump the version field each time that a new feature gets introduced. Signed-off-by: Juan Quintela <quintela@redhat.com> [PMM: fixed conflicts, updated to use cpu_class_set_vmsd(), updated with new/removed fields since original patch, changed to use custom VMStateInfo for cpsr rather than presave/postload hooks, corrected subsection names so vmload doesn't fail] Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2013-03-12target-arm: Override do_interrupt for ARMv7-M profileAndreas Färber1-0/+1
Enable ARMCPUInfo to specify a custom class_init functions. Introduce arm_v7m_class_init() and use it for "cortex-m3" model. Instead of forwarding from arm_cpu_do_interrupt() to do_interrupt_v7m(), override CPUClass::do_interrupt with arm_v7m_cpu_do_interrupt() in arm_v7m_class_init(). Acked-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-03-12cpu: Replace do_interrupt() by CPUClass::do_interrupt methodAndreas Färber1-0/+2
This removes a global per-target function and thus takes us one step closer to compiling multiple targets into one executable. It will also allow to override the interrupt handling for certain CPU families. Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-03-03cpu: Introduce ENV_OFFSET macrosAndreas Färber1-0/+2
Introduce ENV_OFFSET macros which can be used in non-target-specific code that needs to generate TCG instructions which reference CPUState fields given the cpu_env register that TCG targets set up with a pointer to the CPUArchState struct. Signed-off-by: Andreas Färber <afaerber@suse.de> Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2013-02-16target-arm: Update ARMCPU to QOM realizefnAndreas Färber1-1/+2
Turn arm_cpu_realize() into a QOM realize function, no longer called via cpu.h prototype. To maintain the semantics of cpu_init(), set realized = true explicitly in cpu_arm_init(). Move GDB coprocessor registration, CPU reset and vCPU initialization into the realizefn. Signed-off-by: Andreas Färber <afaerber@suse.de>
2012-12-19qom: move include files to include/qom/Paolo Bonzini1-1/+1
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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