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* target-*: Advance pc after recognizing a breakpointRichard Henderson2015-10-281-0/+5
| | | | | | | | Some targets already had this within their logic, but make sure it's present for all targets. Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Richard Henderson <rth@twiddle.net>
* qdev: Protect device-list-properties against broken devicesMarkus Armbruster2015-10-091-0/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Several devices don't survive object_unref(object_new(T)): they crash or hang during cleanup, or they leave dangling pointers behind. This breaks at least device-list-properties, because qmp_device_list_properties() needs to create a device to find its properties. Broken in commit f4eb32b "qmp: show QOM properties in device-list-properties", v2.1. Example reproducer: $ qemu-system-aarch64 -nodefaults -display none -machine none -S -qmp stdio {"QMP": {"version": {"qemu": {"micro": 50, "minor": 4, "major": 2}, "package": ""}, "capabilities": []}} { "execute": "qmp_capabilities" } {"return": {}} { "execute": "device-list-properties", "arguments": { "typename": "pxa2xx-pcmcia" } } qemu-system-aarch64: /home/armbru/work/qemu/memory.c:1307: memory_region_finalize: Assertion `((&mr->subregions)->tqh_first == ((void *)0))' failed. Aborted (core dumped) [Exit 134 (SIGABRT)] Unfortunately, I can't fix the problems in these devices right now. Instead, add DeviceClass member cannot_destroy_with_object_finalize_yet to mark them: * Hang during cleanup (didn't debug, so I can't say why): "realview_pci", "versatile_pci". * Dangling pointer in cpus: most CPUs, plus "allwinner-a10", "digic", "fsl,imx25", "fsl,imx31", "xlnx,zynqmp", because they create such CPUs * Assert kvm_enabled(): "host-x86_64-cpu", host-i386-cpu", "host-powerpc64-cpu", "host-embedded-powerpc-cpu", "host-powerpc-cpu" (the powerpc ones can't currently reach the assertion, because the CPUs are only registered when KVM is enabled, but the assertion is arguably in the wrong place all the same) Make qmp_device_list_properties() fail cleanly when the device is so marked. This improves device-list-properties from "crashes, hangs or leaves dangling pointers behind" to "fails". Not a complete fix, just a better-than-nothing work-around. In the above reproducer, device-list-properties now fails with "Can't list properties of device 'pxa2xx-pcmcia'". This also protects -device FOO,help, which uses the same machinery since commit ef52358 "qdev-monitor: include QOM properties in -device FOO, help output", v2.2. Example reproducer: $ qemu-system-aarch64 -machine none -device pxa2xx-pcmcia,help Before: qemu-system-aarch64: .../memory.c:1307: memory_region_finalize: Assertion `((&mr->subregions)->tqh_first == ((void *)0))' failed. After: Can't list properties of device 'pxa2xx-pcmcia' Cc: "Andreas Färber" <afaerber@suse.de> Cc: "Edgar E. Iglesias" <edgar.iglesias@gmail.com> Cc: Alexander Graf <agraf@suse.de> Cc: Anthony Green <green@moxielogic.com> Cc: Aurelien Jarno <aurelien@aurel32.net> Cc: Bastian Koppelmann <kbastian@mail.uni-paderborn.de> Cc: Blue Swirl <blauwirbel@gmail.com> Cc: Eduardo Habkost <ehabkost@redhat.com> Cc: Guan Xuetao <gxt@mprc.pku.edu.cn> Cc: Jia Liu <proljc@gmail.com> Cc: Leon Alrae <leon.alrae@imgtec.com> Cc: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk> Cc: Max Filippov <jcmvbkbc@gmail.com> Cc: Michael Walle <michael@walle.cc> Cc: Paolo Bonzini <pbonzini@redhat.com> Cc: Peter Maydell <peter.maydell@linaro.org> Cc: Richard Henderson <rth@twiddle.net> Cc: qemu-ppc@nongnu.org Cc: qemu-stable@nongnu.org Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Eduardo Habkost <ehabkost@redhat.com> Message-Id: <1443689999-12182-10-git-send-email-armbru@redhat.com>
* tcg: Remove gen_intermediate_code_pcRichard Henderson2015-10-071-38/+4Star
| | | | | | | | | | It is no longer used, so tidy up everything reached by it. This includes the gen_opc_* arrays, the search_pc parameter and the inline gen_intermediate_code_internal functions. Reviewed-by: Aurelien Jarno <aurelien@aurel32.net> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Richard Henderson <rth@twiddle.net>
* tcg: Pass data argument to restore_state_to_opcRichard Henderson2015-10-071-2/+2
| | | | | | | | | | The gen_opc_* arrays are already redundant with the data stored in the insn_start arguments. Transition restore_state_to_opc to use data from the latter. Reviewed-by: Aurelien Jarno <aurelien@aurel32.net> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Richard Henderson <rth@twiddle.net>
* tcg: Add TCG_MAX_INSNSRichard Henderson2015-10-071-0/+3
| | | | | | | | Adjust all translators to respect it. Reviewed-by: Aurelien Jarno <aurelien@aurel32.net> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Richard Henderson <rth@twiddle.net>
* target-*: Drop cpu_gen_code defineRichard Henderson2015-10-071-1/+0Star
| | | | | | | | This symbol no longer exists. Reviewed-by: Aurelien Jarno <aurelien@aurel32.net> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Richard Henderson <rth@twiddle.net>
* target-*: Introduce and use cpu_breakpoint_testRichard Henderson2015-10-071-17/+7Star
| | | | | | | | | | | | Reduce the boilerplate required for each target. At the same time, move the test for breakpoint after calling tcg_gen_insn_start. Note that arm and aarch64 do not use cpu_breakpoint_test, but still move the inline test down after tcg_gen_insn_start. Reviewed-by: Aurelien Jarno <aurelien@aurel32.net> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Richard Henderson <rth@twiddle.net>
* target-*: Increment num_insns immediately after tcg_gen_insn_startRichard Henderson2015-10-071-2/+2
| | | | | | | | This does tidy the icount test common to all targets. Reviewed-by: Aurelien Jarno <aurelien@aurel32.net> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Richard Henderson <rth@twiddle.net>
* target-*: Unconditionally emit tcg_gen_insn_startRichard Henderson2015-10-071-4/+1Star
| | | | | | | | | | While we're at it, emit the opcode adjacent to where we currently record data for search_pc. This puts gen_io_start et al on the "correct" side of the marker. Reviewed-by: Aurelien Jarno <aurelien@aurel32.net> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Richard Henderson <rth@twiddle.net>
* tcg: Rename debug_insn_start to insn_startRichard Henderson2015-10-071-1/+1
| | | | | | | | With an eye toward making it mandatory. Reviewed-by: Aurelien Jarno <aurelien@aurel32.net> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Richard Henderson <rth@twiddle.net>
* or32: Remove ELF_MACHINE from cpu.hPeter Crosthwaite2015-09-251-1/+0Star
| | | | | | | | | | | | | | | | | | The only generic code relying on this is linux-user, but linux users' default behaviour of defaulting ELF_MACHINE to ELF_ARCH will handle this. The bootloader can just pass EM_OPENRISC directly, as that is architecture specific code. This removes another architecture specific definition from the global namespace. Cc: Jia Liu <proljc@gmail.com> Reviewed-by: Richard Henderson <rth@twiddle.net> Acked-By: Riku Voipio <riku.voipio@linaro.org> Signed-off-by: Peter Crosthwaite <crosthwaite.peter@gmail.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
* tlb: Add "ifetch" argument to cpu_mmu_index()Benjamin Herrenschmidt2015-09-112-2/+2
| | | | | | | | | | | | | | | | | | This is set to true when the index is for an instruction fetch translation. The core get_page_addr_code() sets it, as do the SOFTMMU_CODE_ACCESS acessors. All targets ignore it for now, and all other callers pass "false". This will allow targets who wish to split the mmu index between instruction and data accesses to do so. A subsequent patch will do just that for PowerPC. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Message-Id: <1439796853-4410-2-git-send-email-benh@kernel.crashing.org> Signed-off-by: Richard Henderson <rth@twiddle.net>
* tcg: Remove tcg_gen_trunc_i64_i32Richard Henderson2015-08-241-11/+11
| | | | | | Replacing it with tcg_gen_extrl_i64_i32. Signed-off-by: Richard Henderson <rth@twiddle.net>
* cpu-exec: Purge all uses of ENV_GET_CPU()Peter Crosthwaite2015-07-091-1/+1
| | | | | | | | | | | | | | | | Remove un-needed usages of ENV_GET_CPU() by converting the APIs to use CPUState pointers and retrieving the env_ptr as minimally needed. Scripted conversion for target-* change: for I in target-*/cpu.h; do sed -i \ 's/\(^int cpu_[^_]*_exec(\)[^ ][^ ]* \*s);$/\1CPUState *cpu);/' \ $I; done Signed-off-by: Peter Crosthwaite <crosthwaite.peter@gmail.com> Signed-off-by: Andreas Färber <afaerber@suse.de>
* cpu: Change cpu_exec_init() arg to cpu, not envPeter Crosthwaite2015-07-091-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | The callers (most of them in target-foo/cpu.c) to this function all have the cpu pointer handy. Just pass it to avoid an ENV_GET_CPU() from core code (in exec.c). Cc: Paolo Bonzini <pbonzini@redhat.com> Cc: Richard Henderson <rth@twiddle.net> Cc: Peter Maydell <peter.maydell@linaro.org> Cc: "Edgar E. Iglesias" <edgar.iglesias@gmail.com> Cc: Eduardo Habkost <ehabkost@redhat.com> Cc: Michael Walle <michael@walle.cc> Cc: Leon Alrae <leon.alrae@imgtec.com> Cc: Anthony Green <green@moxielogic.com> Cc: Jia Liu <proljc@gmail.com> Cc: Alexander Graf <agraf@suse.de> Cc: Blue Swirl <blauwirbel@gmail.com> Cc: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk> Cc: Bastian Koppelmann <kbastian@mail.uni-paderborn.de> Cc: Guan Xuetao <gxt@mprc.pku.edu.cn> Cc: Max Filippov <jcmvbkbc@gmail.com> Reviewed-by: Andreas Färber <afaerber@suse.de> Reviewed-by: Aurelien Jarno <aurelien@aurel32.net> Signed-off-by: Peter Crosthwaite <crosthwaite.peter@gmail.com> Signed-off-by: Andreas Färber <afaerber@suse.de>
* cpu: Add Error argument to cpu_exec_init()Bharata B Rao2015-07-091-1/+1
| | | | | | | | | | | | | | | | | | | | Add an Error argument to cpu_exec_init() to let users collect the error. This is in preparation to change the CPU enumeration logic in cpu_exec_init(). With the new enumeration logic, cpu_exec_init() can fail if cpu_index values corresponding to max_cpus have already been handed out. Since all current callers of cpu_exec_init() are from instance_init, use error_abort Error argument to abort in case of an error. Signed-off-by: Bharata B Rao <bharata@linux.vnet.ibm.com> Reviewed-by: Eduardo Habkost <ehabkost@redhat.com> Reviewed-by: Igor Mammedov <imammedo@redhat.com> Reviewed-by: David Gibson <david@gibson.dropbear.id.au> Reviewed-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com> Acked-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Peter Crosthwaite <crosthwaite.peter@gmail.com> Signed-off-by: Andreas Färber <afaerber@suse.de>
* disas: Remove uses of CPU envPeter Crosthwaite2015-06-221-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | disas does not need to access the CPU env for any reason. Change the APIs to accept CPU pointers instead. Small change pattern needs to be applied to all target translate.c. This brings us closer to making disas.o a common-obj and less architecture specific in general. Cc: Richard Henderson <rth@twiddle.net> Cc: Peter Maydell <peter.maydell@linaro.org> Cc: "Edgar E. Iglesias" <edgar.iglesias@gmail.com> Cc: Paolo Bonzini <pbonzini@redhat.com> Cc: Eduardo Habkost <ehabkost@redhat.com> Cc: Michael Walle <michael@walle.cc> Cc: Aurelien Jarno <aurelien@aurel32.net> Cc: Leon Alrae <leon.alrae@imgtec.com> Cc: Jia Liu <proljc@gmail.com> Cc: Alexander Graf <agraf@suse.de> Cc: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk> Cc: Bastian Koppelmann <kbastian@mail.uni-paderborn.de> Cc: Guan Xuetao <gxt@mprc.pku.edu.cn> Cc: Max Filippov <jcmvbkbc@gmail.com> Reviewed-by: Richard Henderson <rth@twiddle.net> Reviewed-by: Eduardo Habkost <ehabkost@redhat.com> Signed-off-by: Peter Crosthwaite <crosthwaite.peter@gmail.com> Acked-by: Luiz Capitulino <lcapitulino@redhat.com> Signed-off-by: Markus Armbruster <armbru@redhat.com>
* openrisc: cpu: Remove unused cpu_get_pcPeter Crosthwaite2015-04-301-5/+0Star
| | | | | | | | This function is not used by anything. Remove. Signed-off-by: Peter Crosthwaite <crosthwaite.peter@gmail.com> Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
* tcg: Change translator-side labels to a pointerRichard Henderson2015-03-131-18/+16Star
| | | | | | | | | | | | | | | | | | | | | | | | | | This is improved type checking for the translators -- it's no longer possible to accidentally swap arguments to the branch functions. Note that the code generating backends still manipulate labels as int. With notable exceptions, the scope of the change is just a few lines for each target, so it's not worth building extra machinery to do this change in per-target increments. Cc: Peter Maydell <peter.maydell@linaro.org> Cc: Edgar E. Iglesias <edgar.iglesias@gmail.com> Cc: Michael Walle <michael@walle.cc> Cc: Leon Alrae <leon.alrae@imgtec.com> Cc: Anthony Green <green@moxielogic.com> Cc: Jia Liu <proljc@gmail.com> Cc: Alexander Graf <agraf@suse.de> Cc: Aurelien Jarno <aurelien@aurel32.net> Cc: Blue Swirl <blauwirbel@gmail.com> Cc: Guan Xuetao <gxt@mprc.pku.edu.cn> Cc: Paolo Bonzini <pbonzini@redhat.com> Cc: Max Filippov <jcmvbkbc@gmail.com> Reviewed-by: Bastian Koppelmann <kbastian@mail.uni-paderborn.de> Signed-off-by: Richard Henderson <rth@twiddle.net>
* cpu: Make cpu_init() return QOM CPUState objectEduardo Habkost2015-03-101-8/+1Star
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Instead of making cpu_init() return CPUArchState, return CPUState. Changes were made using the Coccinelle semantic patch below. @@ typedef CPUState; identifier e; expression args; type CPUArchState; @@ - e = + cpu = cpu_init(args); - if (!e) { + if (!cpu) { ... } - cpu = ENV_GET_CPU(env); + e = cpu->env_ptr; @@ identifier new_env, new_cpu, env, cpu; type CPUArchState; expression args; @@ -{ - CPUState *cpu = ENV_GET_CPU(env); - CPUArchState *new_env = cpu_init(args); - CPUState *new_cpu = ENV_GET_CPU(new_env); +{ + CPUState *cpu = ENV_GET_CPU(env); + CPUState *new_cpu = cpu_init(args); + CPUArchState *new_env = new_cpu->env_ptr; ... } @@ identifier c, cpu_init_func, cpu_model; type StateType, CPUType; @@ -static inline StateType* cpu_init(const char *cpu_model) -{ - CPUType *c = cpu_init_func(cpu_model); ( - if (c == NULL) { - return NULL; - } - return &c->env; | - if (c) { - return &c->env; - } - return NULL; ) -} +#define cpu_init(cpu_model) CPU(cpu_init_func(cpu_model)) @@ identifier cpu_init_func; identifier model; @@ -#define cpu_init(model) (&cpu_init_func(model)->env) +#define cpu_init(model) CPU(cpu_init_func(model)) Signed-off-by: Eduardo Habkost <ehabkost@redhat.com> Cc: Blue Swirl <blauwirbel@gmail.com> Cc: Guan Xuetao <gxt@mprc.pku.edu.cn> Cc: Riku Voipio <riku.voipio@iki.fi> Cc: Richard Henderson <rth@twiddle.net> Cc: Peter Maydell <peter.maydell@linaro.org> Cc: "Edgar E. Iglesias" <edgar.iglesias@gmail.com> Cc: Paolo Bonzini <pbonzini@redhat.com> Cc: Michael Walle <michael@walle.cc> Cc: Aurelien Jarno <aurelien@aurel32.net> Cc: Leon Alrae <leon.alrae@imgtec.com> Cc: Anthony Green <green@moxielogic.com> Cc: Jia Liu <proljc@gmail.com> Cc: Alexander Graf <agraf@suse.de> Cc: Bastian Koppelmann <kbastian@mail.uni-paderborn.de> Cc: Max Filippov <jcmvbkbc@gmail.com> [AF: Fixed up cpu_copy() manually] Signed-off-by: Andreas Färber <afaerber@suse.de>
* tcg: Introduce tcg_op_buf_count and tcg_op_buf_fullRichard Henderson2015-02-131-8/+5Star
| | | | | | | | The method by which we count the number of ops emitted is going to change. Abstract that away into some inlines. Reviewed-by: Bastian Koppelmann <kbastian@mail.uni-paderborn.de> Signed-off-by: Richard Henderson <rth@twiddle.net>
* tcg: Move emit of INDEX_op_end into gen_tb_endRichard Henderson2015-02-131-1/+1
| | | | | Reviewed-by: Bastian Koppelmann <kbastian@mail.uni-paderborn.de> Signed-off-by: Richard Henderson <rth@twiddle.net>
* target-openrisc: bugfix for dec_sys to decode instructions correctlyDavid Morrison2015-01-151-1/+1
| | | | | | | | | | | Fixed the decoding of "system" instructions (starting with 0x2) in dec_sys() in translate.c. In particular, the l.trap instruction is now correctly decoded, which enables for singlestepping and breakpoints to be set in GDB. Signed-off-by: David R. Morrison <dmorrison@invlim.com> Acked-by: Jia Liu <proljc@gmail.com> Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
* gen-icount: check cflags instead of use_icount globalPaolo Bonzini2015-01-031-1/+1
| | | | | | Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Pavel Dovgalyuk <pavel.dovgaluk@ispras.ru> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
* target-openrisc: Use cpu_exec_interrupt qom hookRichard Henderson2014-09-253-0/+22
| | | | | | | | Cc: Jia Liu <proljc@gmail.com> Signed-off-by: Richard Henderson <rth@twiddle.net> Tested-by: Jia Liu <proljc@gmail.com> Message-id: 1410626734-3804-17-git-send-email-rth@twiddle.net Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
* trace: [tcg] Include TCG-tracing header on all targetsLluís Vilanova2014-08-121-0/+3
| | | | | Signed-off-by: Lluís Vilanova <vilanova@ac.upc.edu> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
* openrisc: fix commentMichael S. Tsirkin2014-06-291-2/+2
| | | | | | | | | | | Fix English in comment: s/the each/each/ s/ \*\// \*\// Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Reviewed-by: Igor Mammedov <imammedo@redhat.com>
* softmmu: introduce cpu_ldst.hPaolo Bonzini2014-06-052-1/+2
| | | | | | | | | | This will collect all load and store helpers soon. For now it is just a replacement for softmmu_exec.h, which this patch stops including directly, but we also include it where this will be necessary in order to simplify the next patch. Reviewed-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
* softmmu: commonize helper definitionsPaolo Bonzini2014-06-051-13/+0Star
| | | | | | | | | They do not need to be in op_helper.c. Because cputlb.c now includes softmmu_template.h twice for each size, io_readX must be elided the second time through. Reviewed-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
* tcg: Invert the inclusion of helper.hRichard Henderson2014-05-287-12/+7Star
| | | | | | | | | | Rather than include helper.h with N values of GEN_HELPER, include a secondary file that sets up the macros to include helper.h. This minimizes the files that must be rebuilt when changing the macros for file N. Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Signed-off-by: Richard Henderson <rth@twiddle.net>
* savevm: Remove all the unneeded version_minimum_id_old (rest)Juan Quintela2014-05-141-2/+0Star
| | | | | | | | | | | | | | | | | | | | After previous Peter patch, they are redundant. This way we don't assign them except when needed. Once there, there were lots of case where the ".fields" indentation was wrong: .fields = (VMStateField []) { and .fields = (VMStateField []) { Change all the combinations to: .fields = (VMStateField[]){ The biggest problem (appart from aesthetics) was that checkpatch complained when we copy&pasted the code from one place to another. Signed-off-by: Juan Quintela <quintela@redhat.com> Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
* cputlb: Change tlb_set_page() argument to CPUStateAndreas Färber2014-03-131-1/+1
| | | | Signed-off-by: Andreas Färber <afaerber@suse.de>
* cputlb: Change tlb_flush() argument to CPUStateAndreas Färber2014-03-134-4/+4
| | | | Signed-off-by: Andreas Färber <afaerber@suse.de>
* cputlb: Change tlb_flush_page() argument to CPUStateAndreas Färber2014-03-131-2/+2
| | | | Signed-off-by: Andreas Färber <afaerber@suse.de>
* exec: Change cpu_abort() argument to CPUStateAndreas Färber2014-03-131-1/+1
| | | | Signed-off-by: Andreas Färber <afaerber@suse.de>
* translate-all: Change cpu_restore_state() argument to CPUStateAndreas Färber2014-03-131-4/+1Star
| | | | | | This lets us drop some local variables in tlb_fill() functions. Signed-off-by: Andreas Färber <afaerber@suse.de>
* cpu-exec: Change cpu_loop_exit() argument to CPUStateAndreas Färber2014-03-132-2/+2
| | | | Signed-off-by: Andreas Färber <afaerber@suse.de>
* exec: Change tlb_fill() argument to CPUStateAndreas Färber2014-03-131-3/+5
| | | | Signed-off-by: Andreas Färber <afaerber@suse.de>
* cpu: Move breakpoints field from CPU_COMMON to CPUStateAndreas Färber2014-03-133-3/+9
| | | | | | | | Most targets were using offsetof(CPUFooState, breakpoints) to determine how much of CPUFooState to clear on reset. Use the next field after CPU_COMMON instead, if any, or sizeof(CPUFooState) otherwise. Signed-off-by: Andreas Färber <afaerber@suse.de>
* cpu: Move exception_index field from CPU_COMMON to CPUStateAndreas Färber2014-03-134-9/+12
| | | | Signed-off-by: Andreas Färber <afaerber@suse.de>
* cpu: Turn cpu_handle_mmu_fault() into a CPUClass hookAndreas Färber2014-03-134-12/+13
| | | | | | | | Note that while such functions may exist both for *-user and softmmu, only *-user uses the CPUState hook, while softmmu reuses the prototype for calling it directly. Signed-off-by: Andreas Färber <afaerber@suse.de>
* cpu: Factor out cpu_generic_init()Andreas Färber2014-03-131-12/+1Star
| | | | | | | All targets using it gain the ability to set -cpu name,key=value,... options via the default TYPE_CPU CPUClass::parse_features() implementation. Signed-off-by: Andreas Färber <afaerber@suse.de>
* cpu: Turn cpu_has_work() into a CPUClass hookAndreas Färber2014-03-132-5/+7
| | | | | | | | | Default to false. Tidy variable naming and inline cast uses while at it. Tested-by: Jia Liu <proljc@gmail.com> (or32) Signed-off-by: Andreas Färber <afaerber@suse.de>
* target-openrisc: Use new qemu_ld/st opcodesRichard Henderson2014-02-121-67/+32Star
| | | | | | Signed-off-by: Richard Henderson <rth@twiddle.net> Acked-by: Jia Liu <proljc@gmail.com> Signed-off-by: Jia Liu <proljc@gmail.com>
* openrisc: Fix spelling in comment (transaltion -> translation)Stefan Weil2013-12-231-1/+1
| | | | | | | | I also removed two hyphens in the same comment. Signed-off-by: Stefan Weil <sw@weilnetz.de> Reviewed-by: Jia Liu <proljc@gmail.com> Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
* misc: Replace 'struct QEMUTimer' by 'QEMUTimer'Stefan Weil2013-12-021-1/+1
| | | | | | | | Most code already used QEMUTimer without the redundant 'struct' keyword. Signed-off-by: Stefan Weil <sw@weilnetz.de> Reviewed-by: Andreas Färber <afaerber@suse.de> Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
* target-openrisc: Correct memory bounds checking for the tlb buffersSebastian Macke2013-11-201-8/+8
| | | | | | | | | The mtspr and mfspr routines didn't check for the correct memory boundaries. This fixes a segmentation fault while booting Linux. Signed-off-by: Sebastian Macke <sebastian@macke.de> Reviewed-by: Jia Liu <proljc@gmail.com> Signed-off-by: Jia Liu <proljc@gmail.com>
* openrisc-timer: Reduce overhead, Separate clock update functionsSebastian Macke2013-11-202-20/+19Star
| | | | | | | | | | | | | The clock value is only evaluated when really necessary reducing the overhead of the timer handling. This also solves a problem in the way the Linux kernel handles the timer and the expected accuracy. The old version could lead to inaccurate timings. Signed-off-by: Sebastian Macke <sebastian@macke.de> Reviewed-by: Jia Liu <proljc@gmail.com> Signed-off-by: Jia Liu <proljc@gmail.com>
* target-openrisc: Correct wrong epcr register in interrupt handlerSebastian Macke2013-11-201-18/+7Star
| | | | | | | | | | | | This patch corrects several misbehaviors during an interrupt process. Most of the time the pc is already correct and therefore no special treatment of the exceptions is necessary. Tested by checking crashing programs which otherwise work in or1ksim. Signed-off-by: Sebastian Macke <sebastian@macke.de> Reviewed-by: Jia Liu <proljc@gmail.com> Signed-off-by: Jia Liu <proljc@gmail.com>
* target-openrisc: Remove executable flag for every pageSebastian Macke2013-11-201-2/+2
| | | | | | | | | Pages should be flagged executable only if the tlb executable flag is set or the mmu is off. Signed-off-by: Sebastian Macke <sebastian@macke.de> Reviewed-by: Jia Liu <proljc@gmail.com> Signed-off-by: Jia Liu <proljc@gmail.com>
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