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2016-03-01tcg: Add type for vCPU pointersLluís Vilanova
Adds the 'TCGv_env' type for pointers to 'CPUArchState' objects. The tracing infrastructure later needs to differentiate between regular pointers and pointers to vCPUs. Also changes all targets to use the new 'TCGv_env' type instead of the generic 'TCGv_ptr'. As of now, the change is merely cosmetic ('TCGv_env' translates into 'TCGv_ptr'), but that could change in the future to enforce the difference. Note that a 'TCGv_env' type (for 'CPUState') is not added, since all helpers currently receive the architecture-specific pointer ('CPUArchState'). Signed-off-by: Lluís Vilanova <vilanova@ac.upc.edu> Acked-by: Richard Henderson <rth@twiddle.net> Message-id: 145641859552.30295.7821536833590725201.stgit@localhost Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2016-02-23all: Clean up includesPeter Maydell
Clean up includes so that osdep.h is included first and headers which it implies are not included manually. This commit was created with scripts/clean-includes. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Eric Blake <eblake@redhat.com>
2016-02-09tcg: Change tcg_global_mem_new_* to take a TCGv_ptrRichard Henderson
Thus, use cpu_env as the parameter, not TCG_AREG0 directly. Update all uses in the translators. Reviewed-by: Aurelien Jarno <aurelien@aurel32.net> Signed-off-by: Richard Henderson <rth@twiddle.net>
2016-02-03log: do not unnecessarily include qom/cpu.hPaolo Bonzini
Split the bits that require it to exec/log.h. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Denis V. Lunev <den@openvz.org> Acked-by: Christian Borntraeger <borntraeger@de.ibm.com> Message-id: 1452174932-28657-8-git-send-email-den@openvz.org Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2016-01-29lm32: Clean up includesPeter Maydell
Clean up includes so that osdep.h is included first and headers which it implies are not included manually. This commit was created with scripts/clean-includes. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Message-id: 1453832250-766-5-git-send-email-peter.maydell@linaro.org
2015-10-28target-*: Advance pc after recognizing a breakpointRichard Henderson
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>
2015-10-22disas: QOMify lm32 specific disas setupPeter Crosthwaite
Move the target_disas() lm32 specifics to the CPUClass::disas_set_info() hook and delete the #ifdef specific code in disas.c. Signed-off-by: Peter Crosthwaite <crosthwaite.peter@gmail.com> Acked-by: Michael Walle <michael@walle.cc> Signed-off-by: Andreas Färber <afaerber@suse.de>
2015-10-09qdev: Protect device-list-properties against broken devicesMarkus Armbruster
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>
2015-10-07tcg: Remove gen_intermediate_code_pcRichard Henderson
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>
2015-10-07tcg: Pass data argument to restore_state_to_opcRichard Henderson
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>
2015-10-07tcg: Add TCG_MAX_INSNSRichard Henderson
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>
2015-10-07target-*: Drop cpu_gen_code defineRichard Henderson
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>
2015-10-07target-*: Introduce and use cpu_breakpoint_testRichard Henderson
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>
2015-10-07target-*: Increment num_insns immediately after tcg_gen_insn_startRichard Henderson
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>
2015-10-07target-*: Unconditionally emit tcg_gen_insn_startRichard Henderson
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>
2015-10-07tcg: Rename debug_insn_start to insn_startRichard Henderson
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>
2015-09-25lm32: Remove ELF_MACHINE from cpu.hPeter Crosthwaite
The bootloaders can just pass EM_LATTICEMICO32 directly, as that is architecture specific code. This removes another architecture specific definition from the global namespace. Cc: Michael Walle <michael@walle.cc> Acked-By: Michael Walle <michael@walle.cc> 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>
2015-09-11tlb: Add "ifetch" argument to cpu_mmu_index()Benjamin Herrenschmidt
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>
2015-09-11maint: remove / fix many doubled wordsDaniel P. Berrange
Many source files have doubled words (eg "the the", "to to", and so on). Most of these can simply be removed, but a couple were actual mis-spellings (eg "to to" instead of "to do"). There was even one triple word score "to to to" :-) Signed-off-by: Daniel P. Berrange <berrange@redhat.com> Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com> Reviewed-by: Markus Armbruster <armbru@redhat.com> Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2015-07-09cpu-exec: Purge all uses of ENV_GET_CPU()Peter Crosthwaite
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>
2015-07-09cpu: Change cpu_exec_init() arg to cpu, not envPeter Crosthwaite
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>
2015-07-09cpu: Add Error argument to cpu_exec_init()Bharata B Rao
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>
2015-06-22disas: Remove uses of CPU envPeter Crosthwaite
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>
2015-06-19semihosting: create SemihostingConfig structure and semihost.hLeon Alrae
Remove semihosting_enabled and semihosting_target and replace them with SemihostingConfig structure containing equivalent fields. The structure is defined in vl.c where it is actually set. Also introduce separate header file include/exec/semihost.h allowing to access semihosting config related stuff from target specific semihosting code. Signed-off-by: Leon Alrae <leon.alrae@imgtec.com> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Message-id: 1434643256-16858-2-git-send-email-leon.alrae@imgtec.com Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2015-03-13tcg: Change translator-side labels to a pointerRichard Henderson
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>
2015-03-10cpu: Make cpu_init() return QOM CPUState objectEduardo Habkost
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>
2015-02-12tcg: Introduce tcg_op_buf_count and tcg_op_buf_fullRichard Henderson
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>
2015-02-12tcg: Move emit of INDEX_op_end into gen_tb_endRichard Henderson
Reviewed-by: Bastian Koppelmann <kbastian@mail.uni-paderborn.de> Signed-off-by: Richard Henderson <rth@twiddle.net>
2015-01-20exec.c: Drop TARGET_HAS_ICE define and checksPeter Maydell
The TARGET_HAS_ICE #define is intended to indicate whether a target-* guest CPU implementation supports the breakpoint handling. However, all our guest CPUs have that support (the only two which do not define TARGET_HAS_ICE are unicore32 and openrisc, and in both those cases the bp support is present and the lack of the #define is just a bug). So remove the #define entirely: all new guest CPU support should include breakpoint handling as part of the basic implementation. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Richard Henderson <rth@twiddle.net> Message-id: 1420484960-32365-1-git-send-email-peter.maydell@linaro.org
2015-01-03gen-icount: check cflags instead of use_icount globalPaolo Bonzini
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>
2015-01-03translate: check cflags instead of use_icount globalPaolo Bonzini
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>
2014-10-06gdbstub: Allow target CPUs to specify watchpoint STOP_BEFORE_ACCESS flagPeter Maydell
GDB assumes that watchpoint set via the gdbstub remote protocol will behave in the same way as hardware watchpoints for the target. In particular, whether the CPU stops with the PC before or after the insn which triggers the watchpoint is target dependent. Allow guest CPU code to specify which behaviour to use. This fixes a bug where with guest CPUs which stop before the accessing insn GDB would manually step forward over what it thought was the insn and end up one insn further forward than it should be. We set this flag for the CPU architectures which set gdbarch_have_nonsteppable_watchpoint in gdb 7.7: ARM, CRIS, LM32, MIPS and Xtensa. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com> Tested-by: Max Filippov <jcmvbkbc@gmail.com> Tested-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com> Tested-by: Michael Walle <michael@walle.cc> (for lm32) Message-id: 1410545057-14014-1-git-send-email-peter.maydell@linaro.org
2014-09-25target-lm32: Use cpu_exec_interrupt qom hookRichard Henderson
Cc: Michael Walle <michael@walle.cc> Signed-off-by: Richard Henderson <rth@twiddle.net> Acked-by: Michael Walle <michael@walle.cc> Message-id: 1410626734-3804-21-git-send-email-rth@twiddle.net Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-09-12cpu-exec: Make debug_excp_handler a QOM CPU methodPeter Maydell
Make the debug_excp_handler target specific hook into a QOM CPU method. Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-08-12trace: [tcg] Include TCG-tracing header on all targetsLluís Vilanova
Signed-off-by: Lluís Vilanova <vilanova@ac.upc.edu> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2014-06-23vl: allow other threads to do qemu_system_vmstop_requestPaolo Bonzini
There patch protects vmstop_requested with a lock and introduces qemu_system_vmstop_request_prepare. Together with the new call to qemu_vmstop_requested in vm_start, qemu_system_vmstop_request_prepare avoids a race where the VM could remain stopped even though the iostatus of a block device has already been set (for example). qemu_system_vmstop_request_prepare however also lets the caller thread delay observation of the state change until it has itself communicated that change to the user. This delay avoids any possibility of a wrong reordering of the BLOCK_IO_ERROR event and the subsequent STOP event. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2014-06-05softmmu: introduce cpu_ldst.hPaolo Bonzini
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>
2014-06-05softmmu: commonize helper definitionsPaolo Bonzini
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>
2014-05-28tcg: Invert the inclusion of helper.hRichard Henderson
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>
2014-05-24lm32: remove lm32_sysMichael Walle
Since we have now semihosting on the lm32 target, this device is no longer needed. Remove it. Signed-off-by: Michael Walle <michael@walle.cc>
2014-05-24target-lm32: add semihosting supportMichael Walle
Intercept certain system calls if semihosting is enabled. This should behave like the GDB simulator. Signed-off-by: Michael Walle <michael@walle.cc>
2014-05-14savevm: Remove all the unneeded version_minimum_id_old (rest)Juan Quintela
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>
2014-03-13cputlb: Change tlb_set_page() argument to CPUStateAndreas Färber
Signed-off-by: Andreas Färber <afaerber@suse.de>
2014-03-13cputlb: Change tlb_flush() argument to CPUStateAndreas Färber
Signed-off-by: Andreas Färber <afaerber@suse.de>
2014-03-13exec: Change cpu_abort() argument to CPUStateAndreas Färber
Signed-off-by: Andreas Färber <afaerber@suse.de>
2014-03-13cpu-exec: Change cpu_resume_from_signal() argument to CPUStateAndreas Färber
Signed-off-by: Andreas Färber <afaerber@suse.de>
2014-03-13exec: Change cpu_breakpoint_{insert,remove{,_by_ref,_all}} argumentAndreas Färber
Use CPUState. Allows to clean up CPUArchState in gdbstub. Signed-off-by: Andreas Färber <afaerber@suse.de>
2014-03-13exec: Change cpu_watchpoint_{insert,remove{,_by_ref,_all}} argumentAndreas Färber
Use CPUState. This lets us drop a few local env usages. Signed-off-by: Andreas Färber <afaerber@suse.de>
2014-03-13translate-all: Change cpu_restore_state() argument to CPUStateAndreas Färber
This lets us drop some local variables in tlb_fill() functions. Signed-off-by: Andreas Färber <afaerber@suse.de>
2014-03-13cpu-exec: Change cpu_loop_exit() argument to CPUStateAndreas Färber
Signed-off-by: Andreas Färber <afaerber@suse.de>