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2014-12-22target-arm: add cpu feature EL3 to CPUs with Security ExtensionsFabian Aggeler
Set ARM_FEATURE_EL3 feature for CPUs that implement Security Extensions. Signed-off-by: Fabian Aggeler <aggelerf@ethz.ch> Signed-off-by: Greg Bellows <greg.bellows@linaro.org> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Message-id: 1418684992-8996-16-git-send-email-greg.bellows@linaro.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-12-22target-arm: Add ARMCPU secure propertyGreg Bellows
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>
2014-12-22target-arm: Add feature unset functionGreg Bellows
Add an unset_feature() function to compliment the set_feature() function. This will be used to disable functions after they have been enabled during initialization. Signed-off-by: Greg Bellows <greg.bellows@linaro.org> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Message-id: 1418684992-8996-9-git-send-email-greg.bellows@linaro.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-12-22target-arm: Merge EL3 CP15 register listsGreg Bellows
Merge of the v8_el2_cp_reginfo and el3_cp_reginfo ARMCPRegInfo lists. Previously, some EL3 registers were restricted to the ARMv8 list under the impression that they were not needed on ARMv7. However, this is not the case as the ARMv7/32-bit variants rely on the ARMv8/64-bit variants to handle migration and reset. For this reason they must always exist. Signed-off-by: Greg Bellows <greg.bellows@linaro.org> Message-id: 1418406450-14961-1-git-send-email-greg.bellows@linaro.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-12-11target-arm: Check error conditions on kvm_arm_reset_vcpuChristoffer Dall
When resetting a VCPU we currently call both kvm_arm_vcpu_init() and write_kvmstate_to_list(), both of which can fail, but we never check the return value. The only choice here is to print an error an exit if the calls fail. Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Message-id: 1418039630-11773-1-git-send-email-christoffer.dall@linaro.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-12-11target-arm: Support save/load for 64 bit CPUsPeter Maydell
For migration to work on 64 bit CPUs, we need to include both the 64-bit integer register file and the PSTATE. Everything else is either stored in the same place as existing 32-bit CPU state or handled by the generic sysreg mechanism. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Message-id: 1417788683-4038-3-git-send-email-peter.maydell@linaro.org
2014-12-11target-arm/kvm: make reg sync code common between kvm32/64Alex Bennée
Before we launch a guest we query KVM for the list of "co-processor" registers it knows about. This is used to synchronize system register state for the bulk of coprocessor/system registers. Move this code from the 32-bit specific vcpu init function into a common routine and call it also from the 64-bit vcpu init. This allows system registers to migrate correctly when using KVM, and also permits QEMU code to see the current KVM register state (which will be needed to support big-endian guests, since the virtio endianness callback must check for some system register settings). Since vcpu reset also has to sync registers, we move the 32 bit kvm_arm_reset_vcpu() into common code as well and share it with the 64 bit version. Signed-off-by: Alex Bennée <alex.bennee@linaro.org> [PMM: just copy the 32-bit code rather than improving it along the way; don't share reg_syncs_via_tuple_list() between 32 and 64 bit; tweak function names; move reset] Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-12-11target-arm: make MAIR0/1 bankedGreg Bellows
Added CP register info entries for the ARMv7 MAIR0/1 secure banks. Signed-off-by: Greg Bellows <greg.bellows@linaro.org> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Message-id: 1416242878-876-26-git-send-email-greg.bellows@linaro.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-12-11target-arm: make c13 cp regs banked (FCSEIDR, ...)Fabian Aggeler
When EL3 is running in AArch32 (or ARMv7 with Security Extensions) FCSEIDR, CONTEXTIDR, TPIDRURW, TPIDRURO and TPIDRPRW have a secure and a non-secure instance. Signed-off-by: Fabian Aggeler <aggelerf@ethz.ch> Signed-off-by: Greg Bellows <greg.bellows@linaro.org> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Message-id: 1416242878-876-25-git-send-email-greg.bellows@linaro.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-12-11target-arm: make VBAR bankedGreg Bellows
When EL3 is running in Aarch32 (or ARMv7 with Security Extensions) VBAR has a secure and a non-secure instance, which are mapped to VBAR_EL1 and VBAR_EL3. Signed-off-by: Fabian Aggeler <aggelerf@ethz.ch> Signed-off-by: Greg Bellows <greg.bellows@linaro.org> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Message-id: 1416242878-876-24-git-send-email-greg.bellows@linaro.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-12-11target-arm: make PAR bankedFabian Aggeler
When EL3 is running in AArch32 (or ARMv7 with Security Extensions) PAR has a secure and a non-secure instance. Signed-off-by: Fabian Aggeler <aggelerf@ethz.ch> Signed-off-by: Greg Bellows <greg.bellows@linaro.org> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Message-id: 1416242878-876-23-git-send-email-greg.bellows@linaro.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-12-11target-arm: make IFAR/DFAR bankedFabian Aggeler
When EL3 is running in AArch32 (or ARMv7 with Security Extensions) IFAR and DFAR have a secure and a non-secure instance. Signed-off-by: Fabian Aggeler <aggelerf@ethz.ch> Signed-off-by: Greg Bellows <greg.bellows@linaro.org> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Message-id: 1416242878-876-22-git-send-email-greg.bellows@linaro.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-12-11target-arm: make DFSR bankedFabian Aggeler
When EL3 is running in AArch32 (or ARMv7 with Security Extensions) DFSR has a secure and a non-secure instance. Signed-off-by: Fabian Aggeler <aggelerf@ethz.ch> Signed-off-by: Greg Bellows <greg.bellows@linaro.org> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Message-id: 1416242878-876-21-git-send-email-greg.bellows@linaro.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-12-11target-arm: make IFSR bankedFabian Aggeler
When EL3 is running in AArch32 (or ARMv7 with Security Extensions) IFSR has a secure and a non-secure instance. Adds IFSR32_EL2 definition and storage. Signed-off-by: Fabian Aggeler <aggelerf@ethz.ch> Signed-off-by: Greg Bellows <greg.bellows@linaro.org> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Message-id: 1416242878-876-20-git-send-email-greg.bellows@linaro.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-12-11target-arm: make DACR bankedFabian Aggeler
When EL3 is running in AArch32 (or ARMv7 with Security Extensions) DACR has a secure and a non-secure instance. Adds definition for DACR32_EL2. Signed-off-by: Fabian Aggeler <aggelerf@ethz.ch> Signed-off-by: Greg Bellows <greg.bellows@linaro.org> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Message-id: 1416242878-876-19-git-send-email-greg.bellows@linaro.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-12-11target-arm: make TTBCR bankedFabian Aggeler
Adds secure and non-secure bank register suport for TTBCR. Added new struct to compartmentalize the TCR data and masks. Removed old tcr/ttbcr data and added a 4 element array of the new structs in cp15. This allows for one entry per EL. Added a CP register definition for TCR_EL3. Signed-off-by: Fabian Aggeler <aggelerf@ethz.ch> Signed-off-by: Greg Bellows <greg.bellows@linaro.org> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Message-id: 1416242878-876-18-git-send-email-greg.bellows@linaro.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-12-11target-arm: make TTBR0/1 bankedFabian Aggeler
Adds secure and non-secure bank register suport for TTBR0 and TTBR1. Changes include adding secure and non-secure instances of ttbr0 and ttbr1 as well as a CP register definition for TTBR0_EL3. Added a union containing both EL based array fields and secure and non-secure fields mapped to them. Updated accesses to use A32_BANKED_CURRENT_REG_GET macro. Signed-off-by: Fabian Aggeler <aggelerf@ethz.ch> Signed-off-by: Greg Bellows <greg.bellows@linaro.org> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Message-id: 1416242878-876-17-git-send-email-greg.bellows@linaro.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-12-11target-arm: make CSSELR bankedFabian Aggeler
Rename CSSELR (cache size selection register) and add secure instance (AArch32). Signed-off-by: Fabian Aggeler <aggelerf@ethz.ch> Signed-off-by: Greg Bellows <greg.bellows@linaro.org> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Message-id: 1416242878-876-16-git-send-email-greg.bellows@linaro.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-12-11target-arm: respect SCR.FW, SCR.AW and SCTLR.NMFIFabian Aggeler
Add checks of SCR AW/FW bits when performing writes of CPSR. These SCR bits are used to control whether the CPSR masking bits can be adjusted from non-secure state. Signed-off-by: Fabian Aggeler <aggelerf@ethz.ch> Signed-off-by: Greg Bellows <greg.bellows@linaro.org> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Message-id: 1416242878-876-15-git-send-email-greg.bellows@linaro.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-12-11target-arm: add SCTLR_EL3 and make SCTLR bankedFabian Aggeler
Implements SCTLR_EL3 and uses secure/non-secure instance when needed. Signed-off-by: Fabian Aggeler <aggelerf@ethz.ch> Signed-off-by: Greg Bellows <greg.bellows@linaro.org> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Message-id: 1416242878-876-14-git-send-email-greg.bellows@linaro.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-12-11target-arm: add MVBAR supportFabian Aggeler
Use MVBAR register as exception vector base address for exceptions taken to CPU monitor mode. Signed-off-by: Sergey Fedorov <s.fedorov@samsung.com> Signed-off-by: Fabian Aggeler <aggelerf@ethz.ch> Signed-off-by: Greg Bellows <greg.bellows@linaro.org> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Message-id: 1416242878-876-13-git-send-email-greg.bellows@linaro.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-12-11target-arm: add SDER definitionGreg Bellows
Added CP register defintions for SDER and SDER32_EL3 as well as cp15.sder for register storage. Signed-off-by: Sergey Fedorov <s.fedorov@samsung.com> Signed-off-by: Fabian Aggeler <aggelerf@ethz.ch> Signed-off-by: Greg Bellows <greg.bellows@linaro.org> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Message-id: 1416242878-876-12-git-send-email-greg.bellows@linaro.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-12-11target-arm: add NSACR registerFabian Aggeler
Implements NSACR register with corresponding read/write functions for ARMv7 and ARMv8. Signed-off-by: Sergey Fedorov <s.fedorov@samsung.com> Signed-off-by: Fabian Aggeler <aggelerf@ethz.ch> Signed-off-by: Greg Bellows <greg.bellows@linaro.org> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Message-id: 1416242878-876-11-git-send-email-greg.bellows@linaro.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-12-11target-arm: implement IRQ/FIQ routing to Monitor modeFabian Aggeler
SCR.{IRQ/FIQ} bits allow to route IRQ/FIQ exceptions to monitor CPU mode. When taking IRQ exception to monitor mode FIQ exception is additionally masked. Signed-off-by: Sergey Fedorov <s.fedorov@samsung.com> Signed-off-by: Fabian Aggeler <aggelerf@ethz.ch> Signed-off-by: Greg Bellows <greg.bellows@linaro.org> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Message-id: 1416242878-876-10-git-send-email-greg.bellows@linaro.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-12-11target-arm: move AArch32 SCR into security reglistFabian Aggeler
Define a new ARM CP register info list for the ARMv7 Security Extension feature. Register that list only for ARM cores with Security Extension/EL3 support. Moving AArch32 SCR into Security Extension register group. Signed-off-by: Sergey Fedorov <s.fedorov@samsung.com> Signed-off-by: Fabian Aggeler <aggelerf@ethz.ch> Signed-off-by: Greg Bellows <greg.bellows@linaro.org> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Message-id: 1416242878-876-9-git-send-email-greg.bellows@linaro.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-12-11target-arm: insert AArch32 cpregs twice into hashtableFabian Aggeler
Prepare for cp register banking by inserting every cp register twice, once for secure world and once for non-secure world. Signed-off-by: Fabian Aggeler <aggelerf@ethz.ch> Signed-off-by: Greg Bellows <greg.bellows@linaro.org> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Message-id: 1416242878-876-8-git-send-email-greg.bellows@linaro.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-12-11target-arm: add secure state bit to CPREG hashPeter Maydell
Added additional NS-bit to CPREG hash encoding. Updated hash lookup locations to specify hash bit currently set to non-secure. Signed-off-by: Greg Bellows <greg.bellows@linaro.org> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Message-id: 1416242878-876-7-git-send-email-greg.bellows@linaro.org [PMM: fix uses of ENCODE_CP_REG in kvm32.c to add extra argument] Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-12-11target-arm: add CPREG secure state supportFabian Aggeler
Prepare ARMCPRegInfo to support specifying two fieldoffsets per register definition. This will allow us to keep one register definition for banked registers (different offsets for secure/ non-secure world). Also added secure state tracking field and flags. This allows for identification of the register info secure state. Signed-off-by: Fabian Aggeler <aggelerf@ethz.ch> Signed-off-by: Greg Bellows <greg.bellows@linaro.org> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Message-id: 1416242878-876-6-git-send-email-greg.bellows@linaro.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-12-11target-arm: add non-secure Translation Block flagSergey Fedorov
This patch is based on idea found in patch at git://github.com/jowinter/qemu-trustzone.git f3d955c6c0ed8c46bc0eb10b634201032a651dd2 by Johannes Winter <johannes.winter@iaik.tugraz.at>. The TBFLAG captures the SCR NS secure state at the time when a TB is created so the correct bank is accessed on system register accesses. Signed-off-by: Sergey Fedorov <s.fedorov@samsung.com> Signed-off-by: Fabian Aggeler <aggelerf@ethz.ch> Signed-off-by: Greg Bellows <greg.bellows@linaro.org> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Message-id: 1416242878-876-5-git-send-email-greg.bellows@linaro.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-12-11target-arm: add banked register accessorsFabian Aggeler
If EL3 is in AArch32 state certain cp registers are banked (secure and non-secure instance). When reading or writing to coprocessor registers the following macros can be used. - A32_BANKED macros are used for choosing the banked register based on provided input security argument. This macro is used to choose the bank during translation of MRC/MCR instructions that are dependent on something other than the current secure state. - A32_BANKED_CURRENT macros are used for choosing the banked register based on current secure state. This is NOT to be used for choosing the bank used during translation as it breaks monitor mode. If EL3 is operating in AArch64 state coprocessor registers are not banked anymore. The macros use the non-secure instance (_ns) in this case, which is architecturally mapped to the AArch64 EL register. Signed-off-by: Sergey Fedorov <s.fedorov@samsung.com> Signed-off-by: Fabian Aggeler <aggelerf@ethz.ch> Signed-off-by: Greg Bellows <greg.bellows@linaro.org> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Message-id: 1416242878-876-4-git-send-email-greg.bellows@linaro.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-12-11target-arm: add async excp target_el functionGreg Bellows
Adds a dedicated function and a lookup table for determining the target exception level of IRQ and FIQ exceptions. The lookup table is taken from the ARMv7 and ARMv8 specification exception routing tables. Signed-off-by: Greg Bellows <greg.bellows@linaro.org> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Message-id: 1416242878-876-3-git-send-email-greg.bellows@linaro.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-12-11target-arm: extend async excp maskingGreg Bellows
This patch extends arm_excp_unmasked() to use lookup tables for determining whether IRQ and FIQ exceptions are masked. The lookup tables are based on the ARMv8 and ARMv7 specification physical interrupt masking tables. If EL3 is using AArch64 IRQ/FIQ masking is ignored in all exception levels other than EL3 if SCR.{FIQ|IRQ} is set to 1 (routed to EL3). Signed-off-by: Greg Bellows <greg.bellows@linaro.org> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Message-id: 1416242878-876-2-git-send-email-greg.bellows@linaro.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-12-11Pass semihosting exit code back to system.Liviu Ionescu
In order to run unit tests under semihosting, it is necessary to pass the application exit code back to the system. ARM defines only the code to be used for non-error application exit (ADP_Stopped_ApplicationExit), all other codes should return non-zero exit codes. This patch checks if the application code passed via TARGET_SYS_EXIT is ADP_Stopped_ApplicationExit, and return 0, otherwise return 1. Signed-off-by: Liviu Ionescu <ilg@livius.net> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-11-17target-arm: handle address translations that start at level 3Peter Maydell
The ARMv8 address translation system defines that a page table walk starts at a level which depends on the translation granule size and the number of bits of virtual address that need to be resolved. Where the translation granule is 64KB and the guest sets the TCR.TxSZ field to between 35 and 39, it's actually possible to start at level 3 (the final level). QEMU's implementation failed to handle this case, and so we would set level to 2 and behave incorrectly (including invoking the C undefined behaviour of shifting left by a negative number). Correct the code that determines the starting level to deal with the start-at-3 case, by replacing the if-else ladder with an expression derived from the ARM ARM pseudocode version. This error was detected by the Coverity scan, which spotted the potential shift by a negative number. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Message-id: 1415890569-7454-1-git-send-email-peter.maydell@linaro.org
2014-11-04target-arm: Correct condition for taking VIRQ and VFIQPeter Maydell
The VIRQ and VFIQ exceptions are (as the comments say) only taken if the CPU is in Non-secure state and the IMO/FMO bits are set to enable virtualized interrupts. Correct the code to actually implement this. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com> Message-id: 1414684132-23971-3-git-send-email-peter.maydell@linaro.org
2014-11-04target-arm: Separate out M profile cpu_exec_interrupt handlingPeter Maydell
The M profile cpu_exec_interrupt handling is fairly simple but does include an M profile specific oddity (disabling interrupts for certain PC values). A/R profile handling on the other hand is getting rapidly more complicated with the support for EL2 and EL3. Split the M profile code out into its own implementation of cpu_exec_interrupt to keep these two things out of each others' way. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com> Message-id: 1414684132-23971-2-git-send-email-peter.maydell@linaro.org
2014-11-04target-arm/translate.c: Don't pass CPUARMState * to disas_arm_insn()Peter Maydell
Refactor to avoid passing a CPUARMState * to disas_arm_insn(). To do this we move the "read insn from memory" code to the callsite and pass the insn to the function instead. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Message-id: 1414524244-20316-6-git-send-email-peter.maydell@linaro.org Reviewed-by: Claudio Fontana <claudio.fontana@huawei.com>
2014-11-04target-arm/translate.c: Don't pass CPUARMState around in the decoderPeter Maydell
Passing the CPUARMState around in the decoder is a recipe for bugs where we accidentally generate code that depends on CPU state which isn't reflected in the TB flags. Stop doing this and instead use DisasContext as a way to pass around those bits of CPU state which are known to be safe to use. This commit simply removes initial "CPUARMState *env" parameters from various function definitions, and removes the initial "env" argument from the places where those functions are called. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Message-id: 1414524244-20316-5-git-send-email-peter.maydell@linaro.org Reviewed-by: Claudio Fontana <claudio.fontana@huawei.com>
2014-11-04target-arm/translate.c: Don't use IS_M()Peter Maydell
Instead of using IS_M(), use arm_dc_feature(s, ARM_FEATURE_M), so we don't need to pass CPUARMState pointers around the decoder. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Message-id: 1414524244-20316-4-git-send-email-peter.maydell@linaro.org Reviewed-by: Claudio Fontana <claudio.fontana@huawei.com>
2014-11-04target-arm/translate.c: Use arm_dc_feature() rather than arm_feature()Peter Maydell
Use arm_dc_feature() rather than arm_feature() to avoid using CPUARMState unnecessarily. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Message-id: 1414524244-20316-3-git-send-email-peter.maydell@linaro.org Reviewed-by: Claudio Fontana <claudio.fontana@huawei.com>
2014-11-04target-arm/translate.c: Use arm_dc_feature() in ENABLE_ARCH_ macrosPeter Maydell
All the places where we use the ENABLE_ARCH_* and ARCH() macros have a DisasContext* s, so switch them over to use arm_dc_feature() rather than arm_feature() so we don't need to pass the CPUARMState* env around too. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Message-id: 1414524244-20316-2-git-send-email-peter.maydell@linaro.org Reviewed-by: Claudio Fontana <claudio.fontana@huawei.com>
2014-11-02target-arm: A64: remove redundant storeAlex Bennée
There is not much point storing the same value twice in a row. Reported-by: Laurent Desnogues <laurent.desnogues@gmail.com> Signed-off-by: Alex Bennée <alex.bennee@linaro.org> Reviewed-by: Laurent Desnogues <laurent.desnogues@gmail.com> Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2014-10-24target-arm: A32: Emulate the SMC instructionFabian Aggeler
Implements SMC instruction in AArch32 using the A32 syndrome. When executing SMC instruction from monitor CPU mode SCR.NS bit is reset. Signed-off-by: Sergey Fedorov <s.fedorov@samsung.com> Signed-off-by: Fabian Aggeler <aggelerf@ethz.ch> Signed-off-by: Greg Bellows <greg.bellows@linaro.org> Message-id: 1413910544-20150-7-git-send-email-greg.bellows@linaro.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-10-24target-arm: make arm_current_el() return EL3Fabian Aggeler
Make arm_current_el() return EL3 for secure PL1 and monitor mode. Increase MMU modes since mmu_index is directly inferred from arm_ current_el(). Change assertion in arm_el_is_aa64() to allow EL3. Signed-off-by: Fabian Aggeler <aggelerf@ethz.ch> Signed-off-by: Greg Bellows <greg.bellows@linaro.org> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Message-id: 1413910544-20150-6-git-send-email-greg.bellows@linaro.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-10-24target-arm: rename arm_current_pl to arm_current_elGreg Bellows
Renamed the arm_current_pl CPU function to more accurately represent that it returns the ARMv8 EL rather than ARMv7 PL. Signed-off-by: Greg Bellows <greg.bellows@linaro.org> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Message-id: 1413910544-20150-5-git-send-email-greg.bellows@linaro.org [PMM: fixed a minor merge resolution error in a couple of hunks] Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-10-24target-arm: reject switching to monitor modeSergey Fedorov
Reject switching to monitor mode from non-secure state. Signed-off-by: Sergey Fedorov <s.fedorov@samsung.com> Signed-off-by: Fabian Aggeler <aggelerf@ethz.ch> Signed-off-by: Greg Bellows <greg.bellows@linaro.org> Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Message-id: 1413910544-20150-4-git-send-email-greg.bellows@linaro.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-10-24target-arm: add arm_is_secure() functionFabian Aggeler
arm_is_secure() function allows to determine CPU security state if the CPU implements Security Extensions/EL3. arm_is_secure_below_el3() returns true if CPU is in secure state below EL3. Signed-off-by: Sergey Fedorov <s.fedorov@samsung.com> Signed-off-by: Fabian Aggeler <aggelerf@ethz.ch> Signed-off-by: Greg Bellows <greg.bellows@linaro.org> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Message-id: 1413910544-20150-3-git-send-email-greg.bellows@linaro.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-10-24target-arm: increase arrays of registers R13 & R14Fabian Aggeler
Increasing banked_r13 and banked_r14 to store LR_mon and SP_mon (bank index 7). Signed-off-by: Fabian Aggeler <aggelerf@ethz.ch> Signed-off-by: Greg Bellows <greg.bellows@linaro.org> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Message-id: 1413910544-20150-2-git-send-email-greg.bellows@linaro.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-10-24target-arm: correctly UNDEF writes to FPINST/FPINST2 from EL0Peter Maydell
The ARM ARM requires that the FPINST and FPINST2 VFP control registers are not accessible to code at EL0. We were already correctly implementing this for reads of these registers; add the missing check for the write code path. Reported-by: Laurent Desnogues <laurent.desnogues@gmail.com> Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Laurent Desnogues <laurent.desnogues@gmail.com> Message-id: 1412967447-20931-1-git-send-email-peter.maydell@linaro.org
2014-10-24target-arm: Report a valid L1Ip field in CTR_EL0 for CPU type "any"Peter Maydell
For the CPU type "any" (only used with linux-user) we were reporting the L1Ip field as 0b00, which is reserved. Change this field to 0b10 instead, indicating a VIPT icache as the comment describes. Reported-by: Laurent Desnogues <laurent.desnogues@gmail.com> Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Laurent Desnogues <laurent.desnogues@gmail.com> Message-id: 1412966807-20844-1-git-send-email-peter.maydell@linaro.org
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