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2016-10-25target-m68k: Optimize gen_flush_flagsRichard Henderson
Signed-off-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2016-10-25target-m68k: Optimize some comparisonsRichard Henderson
Signed-off-by: Richard Henderson <rth@twiddle.net> [laurent: fixed VC and VS: assign v1, not v2] Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2016-10-25target-m68k: Use setcond for sccRichard Henderson
Signed-off-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2016-10-25target-m68k: Introduce DisasCompareRichard Henderson
Signed-off-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2016-10-25target-m68k: Reorg flags handlingRichard Henderson
Separate all ccr bits. Continue to batch updates via cc_op. Signed-off-by: Richard Henderson <rth@twiddle.net> Fix gen_logic_cc() to really extend the size of the result. Fix gen_get_ccr(): update cc_op as it is used by the helper. Factorize flags computing and src/ccr cleanup Signed-off-by: Laurent Vivier <laurent@vivier.eu> target-m68k: sr/ccr cleanup Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2016-10-25target-m68k: Remove incorrect clearing of cc_xRichard Henderson
The CF docs certainly doesnt suggest this is true. Signed-off-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2016-10-25target-m68k: Some fixes to SR and flags managementRichard Henderson
Signed-off-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2016-10-25target-m68k: Print flags properlyRichard Henderson
Signed-off-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2016-10-25target-m68k: update CPU flags managementLaurent Vivier
Copied from target-i386 Signed-off-by: Laurent Vivier <laurent@vivier.eu> Reviewed-by: Richard Henderson <rth@twiddle.net>
2016-10-25target-m68k: don't update cc_dest in helpersLaurent Vivier
Signed-off-by: Laurent Vivier <laurent@vivier.eu> Reviewed-by: Richard Henderson <rth@twiddle.net>
2016-10-25target-m68k: update move to/from ccr/srLaurent Vivier
Signed-off-by: Laurent Vivier <laurent@vivier.eu> Reviewed-by: Richard Henderson <rth@twiddle.net>
2016-10-25target-m68k: remove m68k_cpu_exec_enter() and m68k_cpu_exec_exit()Laurent Vivier
Update cc_op directly from tcg_gen_insn_start() and restore_state_to_opc() Copied from target-i386 Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2016-10-25target-m68k: Replace helper_xflag_lt with setcondRichard Henderson
Signed-off-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2016-10-25target-m68k: allow to update flags with operation on words and bytesLaurent Vivier
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2016-10-25target-m68k: REG() macro cleanupLaurent Vivier
Signed-off-by: Laurent Vivier <laurent@vivier.eu> Reviewed-by: Richard Henderson <rth@twiddle.net>
2016-10-25target-m68k: set PAGE_BITS to 12 for m68kLaurent Vivier
Signed-off-by: Laurent Vivier <laurent@vivier.eu> Reviewed-by: Richard Henderson <rth@twiddle.net>
2016-10-25target-m68k: define operand sizesLaurent Vivier
Signed-off-by: Laurent Vivier <laurent@vivier.eu> Reviewed-by: Richard Henderson <rth@twiddle.net>
2016-10-25target-m68k: set disassembler mode to 680x0 or coldfireLaurent Vivier
Signed-off-by: Laurent Vivier <laurent@vivier.eu> Reviewed-by: Richard Henderson <rth@twiddle.net>
2016-10-25target-m68k: introduce read_imXX() functionsLaurent Vivier
Read a 8, 16 or 32bit immediat constant. An immediate constant is stored in the instruction opcode and can be in one or two extension words. Signed-off-by: Laurent Vivier <laurent@vivier.eu> Reviewed-by: Richard Henderson <rth@twiddle.net>
2016-10-25target-m68k: manage scaled indexLaurent Vivier
Scaled index is not supported by 68000, 68008, and 68010. EA = (bd + PC) + Xn.SIZE*SCALE + od Ignore it: M68000 FAMILY PROGRAMMER’S REFERENCE MANUAL 2.4 BRIEF EXTENSION WORD FORMAT COMPATIBILITY "If the MC68000 were to execute an instruction that encoded a scaling factor, the scaling factor would be ignored and would not access the desired memory address. The earlier microprocessors do not recognize the brief extension word formats implemented by newer processors. Although they can detect illegal instructions, they do not decode invalid encodings of the brief extension word formats as exceptions." Signed-off-by: Laurent Vivier <laurent@vivier.eu> Reviewed-by: Richard Henderson <rth@twiddle.net>
2016-10-25target-m68k: define m680x0 CPUs and featuresLaurent Vivier
This patch defines height new features: - M68K_FEATURE_SCALED_INDEX, scaled address index register - M68K_FEATURE_LONG_MULDIV, 32bit multiply/divide - M68K_FEATURE_QUAD_MULDIV, 64bit multiply/divide - M68K_FEATURE_BCCL, long conditional branches - M68K_FEATURE_BITFIELD, bit field instructions - M68K_FEATURE_FPU, FPU instructions - M68K_FEATURE_CAS, cas instruction - M68K_FEATURE_BKPT, bkpt instruction Original patch from Andreas Schwab <schwab@linux-m68k.org> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2016-10-25target-m68k: Build the opcode table only once to avoid multithreading issuesJohn Paul Adrian Glaubitz
Signed-off-by: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de> Signed-off-by: Laurent Vivier <laurent@vivier.eu> Reviewed-by: Richard Henderson <rth@twiddle.net>
2016-10-25target-m68k: fix DEBUG_DISPATCHLaurent Vivier
Signed-off-by: Laurent Vivier <laurent@vivier.eu> Reviewed-by: Richard Henderson <rth@twiddle.net>
2016-10-24exec: move cpu_exec_init() calls to realize functionsLaurent Vivier
Modify all CPUs to call it from XXX_cpu_realizefn() function. Remove all the cannot_destroy_with_object_finalize_yet as unsafe references have been moved to cpu_exec_realizefn(). (tested with QOM command provided by commit 4c315c27) for arm: Setting of cpu->mp_affinity is moved from arm_cpu_initfn() to arm_cpu_realizefn() as setting of cpu_index is now done in cpu_exec_realizefn(). To avoid to overwrite an user defined value, we set it to an invalid value by default, and update it in realize function only if the value is still invalid. Signed-off-by: Laurent Vivier <lvivier@redhat.com> Reviewed-by: David Gibson <david@gibson.dropbear.id.au> Reviewed-by: Igor Mammedov <imammedo@redhat.com> Reviewed-by: Eduardo Habkost <ehabkost@redhat.com> Reviewed-by: Andrew Jones <drjones@redhat.com> Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
2016-10-07qemu-tech: document lazy condition code evaluation in cpu.hPaolo Bonzini
Unlike the other sections, they are pretty specific to a particular CPU. Reviewed-by: Emilio G. Cota <cota@braap.org> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2016-09-15Remove unused function declarationsLadi Prosek
Unused function declarations were found using a simple gcc plugin and manually verified by grepping the sources. Signed-off-by: Ladi Prosek <lprosek@redhat.com> Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2016-09-13target-m68k: fix get_mac_extf helperPaolo Bonzini
val is assigned twice; the second one should be combined with "|". Reported by Coverity. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2016-07-12target-*: Clean up cpu.h header guardsMarkus Armbruster
Most of them use guard symbols like CPU_$target_H, but we also have __MIPS_CPU_H__ and __TRICORE_CPU_H__. They all upset scripts/clean-header-guards.pl. The script dislikes CPU_$target_H because they don't match their file name (they should, to make guard collisions less likely). The others are reserved identifiers. Clean them all up: use guard symbol $target_CPU_H for target-$target/cpu.h. Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Richard Henderson <rth@twiddle.net>
2016-07-12Fix confusing argument names in some common functionsSergey Sorokin
There are functions tlb_fill(), cpu_unaligned_access() and do_unaligned_access() that are called with access type and mmu index arguments. But these arguments are named 'is_write' and 'is_user' in their declarations. The patches fix the arguments to avoid a confusion. Signed-off-by: Sergey Sorokin <afarallax@yandex.ru> Reviewed-by: Eduardo Habkost <ehabkost@redhat.com> Acked-by: David Gibson <david@gibson.dropbear.id.au> Message-id: 1465907177-1399402-1-git-send-email-afarallax@yandex.ru Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2016-06-29Merge remote-tracking branch 'remotes/bonzini/tags/for-upstream' into stagingPeter Maydell
* serial port fixes (Paolo) * Q35 modeling improvements (Paolo, Vasily) * chardev cleanup improvements (Marc-André) * iscsi bugfix (Peter L.) * cpu_exec patch from multi-arch patches (Peter C.) * pci-assign tweak (Lin Ma) # gpg: Signature made Wed 29 Jun 2016 15:56:30 BST # gpg: using RSA key 0xBFFBD25F78C7AE83 # gpg: Good signature from "Paolo Bonzini <bonzini@gnu.org>" # gpg: aka "Paolo Bonzini <pbonzini@redhat.com>" # Primary key fingerprint: 46F5 9FBD 57D6 12E7 BFD4 E2F7 7E15 100C CD36 69B1 # Subkey fingerprint: F133 3857 4B66 2389 866C 7682 BFFB D25F 78C7 AE83 * remotes/bonzini/tags/for-upstream: (35 commits) socket: unlink unix socket on remove socket: add listen feature char: clean up remaining chardevs when leaving vhost-user: disable chardev handlers on close vhost-user-test: fix g_cond_wait_until compat implementation vl: smp_parse: fix regression ich9: implement SCI_IRQ_SEL register ich9: implement ACPI_EN register serial: reinstate watch after migration serial: remove watch on reset char: change qemu_chr_fe_add_watch to return unsigned serial: separate serial_xmit and serial_watch_cb serial: simplify tsr_retry reset serial: make tsr_retry unsigned iscsi: fix assertion in is_sector_request_lun_aligned target-*: Don't redefine cpu_exec() pci-assign: Move "Invalid ROM" error message to pci-assign-load-rom.c vnc: generalize "VNC server running on ..." message scsi: esp: fix migration MC146818 RTC: add GPIO access to output IRQ ... Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2016-06-29target-*: Don't redefine cpu_exec()Peter Crosthwaite
This function needs to be converted to QOM hook and virtualised for multi-arch. This rename interferes, as cpu-qom will not have access to the renaming causing name divergence. This rename doesn't really do anything anyway so just delete it. Signed-off-by: Peter Crosthwaite <crosthwaite.peter@gmail.com> Message-Id: <69bd25a8678b8b31b91cd9760c777bed1aafb44e.1437212383.git.crosthwaite.peter@gmail.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Peter Crosthwaite <crosthwaitepeter@gmail.com>
2016-06-24softfloat: Implement run-time-configurable meaning of signaling NaN bitAleksandar Markovic
This patch modifies SoftFloat library so that it can be configured in run-time in relation to the meaning of signaling NaN bit, while, at the same time, strictly preserving its behavior on all existing platforms. Background: In floating-point calculations, there is a need for denoting undefined or unrepresentable values. This is achieved by defining certain floating-point numerical values to be NaNs (which stands for "not a number"). For additional reasons, virtually all modern floating-point unit implementations use two kinds of NaNs: quiet and signaling. The binary representations of these two kinds of NaNs, as a rule, differ only in one bit (that bit is, traditionally, the first bit of mantissa). Up to 2008, standards for floating-point did not specify all details about binary representation of NaNs. More specifically, the meaning of the bit that is used for distinguishing between signaling and quiet NaNs was not strictly prescribed. (IEEE 754-2008 was the first floating-point standard that defined that meaning clearly, see [1], p. 35) As a result, different platforms took different approaches, and that presented considerable challenge for multi-platform emulators like QEMU. Mips platform represents the most complex case among QEMU-supported platforms regarding signaling NaN bit. Up to the Release 6 of Mips architecture, "1" in signaling NaN bit denoted signaling NaN, which is opposite to IEEE 754-2008 standard. From Release 6 on, Mips architecture adopted IEEE standard prescription, and "0" denotes signaling NaN. On top of that, Mips architecture for SIMD (also known as MSA, or vector instructions) also specifies signaling bit in accordance to IEEE standard. MSA unit can be implemented with both pre-Release 6 and Release 6 main processor units. QEMU uses SoftFloat library to implement various floating-point-related instructions on all platforms. The current QEMU implementation allows for defining meaning of signaling NaN bit during build time, and is implemented via preprocessor macro called SNAN_BIT_IS_ONE. On the other hand, the change in this patch enables SoftFloat library to be configured in run-time. This configuration is meant to occur during CPU initialization, at the moment when it is definitely known what desired behavior for particular CPU (or any additional FPUs) is. The change is implemented so that it is consistent with existing implementation of similar cases. This means that structure float_status is used for passing the information about desired signaling NaN bit on each invocation of SoftFloat functions. The additional field in float_status is called snan_bit_is_one, which supersedes macro SNAN_BIT_IS_ONE. IMPORTANT: This change is not meant to create any change in emulator behavior or functionality on any platform. It just provides the means for SoftFloat library to be used in a more flexible way - in other words, it will just prepare SoftFloat library for usage related to Mips platform and its specifics regarding signaling bit meaning, which is done in some of subsequent patches from this series. Further break down of changes: 1) Added field snan_bit_is_one to the structure float_status, and correspondent setter function set_snan_bit_is_one(). 2) Constants <float16|float32|float64|floatx80|float128>_default_nan (used both internally and externally) converted to functions <float16|float32|float64|floatx80|float128>_default_nan(float_status*). This is necessary since they are dependent on signaling bit meaning. At the same time, for the sake of code cleanup and simplicity, constants <floatx80|float128>_default_nan_<low|high> (used only internally within SoftFloat library) are removed, as not needed. 3) Added a float_status* argument to SoftFloat library functions XXX_is_quiet_nan(XXX a_), XXX_is_signaling_nan(XXX a_), XXX_maybe_silence_nan(XXX a_). This argument must be present in order to enable correct invocation of new version of functions XXX_default_nan(). (XXX is <float16|float32|float64|floatx80|float128> here) 4) Updated code for all platforms to reflect changes in SoftFloat library. This change is twofolds: it includes modifications of SoftFloat library functions invocations, and an addition of invocation of function set_snan_bit_is_one() during CPU initialization, with arguments that are appropriate for each particular platform. It was established that all platforms zero their main CPU data structures, so snan_bit_is_one(0) in appropriate places is not added, as it is not needed. [1] "IEEE Standard for Floating-Point Arithmetic", IEEE Computer Society, August 29, 2008. Signed-off-by: Thomas Schwinge <thomas@codesourcery.com> Signed-off-by: Maciej W. Rozycki <macro@codesourcery.com> Signed-off-by: Aleksandar Markovic <aleksandar.markovic@imgtec.com> Tested-by: Bastian Koppelmann <kbastian@mail.uni-paderborn.de> Reviewed-by: Leon Alrae <leon.alrae@imgtec.com> Tested-by: Leon Alrae <leon.alrae@imgtec.com> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> [leon.alrae@imgtec.com: * cherry-picked 2 chunks from patch #2 to fix compilation warnings] Signed-off-by: Leon Alrae <leon.alrae@imgtec.com>
2016-06-20exec: [tcg] Track which vCPU is performing translation and executionLluís Vilanova
Information is tracked inside the TCGContext structure, and later used by tracing events with the 'tcg' and 'vcpu' properties. The 'cpu' field is used to check tracing of translation-time events ("*_trans"). The 'tcg_env' field is used to pass it to execution-time events ("*_exec"). Signed-off-by: Lluís Vilanova <vilanova@ac.upc.edu> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Richard Henderson <rth@twiddle.net> Message-id: 146549350162.18437.3033661139638458143.stgit@fimbulvetr.bsc.es Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2016-06-05target-*: dfilter support for in_asmRichard Henderson
The arm target was handled by 06486077, but other targets were ignored. This handles all the rest which actually support disassembly (that is, skipping moxie and tilegx). Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Signed-off-by: Richard Henderson <rth@twiddle.net>
2016-05-19cpu: move exec-all.h inclusion out of cpu.hPaolo Bonzini
exec-all.h contains TCG-specific definitions. It is not needed outside TCG-specific files such as translate.c, exec.c or *helper.c. One generic function had snuck into include/exec/exec-all.h; move it to include/qom/cpu.h. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2016-05-19qemu-common: push cpu.h inclusion out of qemu-common.hPaolo Bonzini
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2016-05-19target-m68k: make cpu-qom.h not target specificPaolo Bonzini
Make M68KCPU an opaque type within cpu-qom.h, and move all definitions of private methods, as well as all type definitions that require knowledge of the layout to cpu.h. This helps making files independent of NEED_CPU_H if they only need to pass around CPU pointers. Reviewed-by: Thomas Huth <thuth@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2016-05-12tcg: Allow goto_tb to any target PC in user modeSergey Fedorov
In user mode, there's only a static address translation, TBs are always invalidated properly and direct jumps are reset when mapping change. Thus the destination address is always valid for direct jumps and there's no need to restrict it to the pages the TB resides in. Signed-off-by: Sergey Fedorov <serge.fdrv@gmail.com> Signed-off-by: Sergey Fedorov <sergey.fedorov@linaro.org> Cc: Riku Voipio <riku.voipio@iki.fi> Cc: Blue Swirl <blauwirbel@gmail.com> Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Signed-off-by: Richard Henderson <rth@twiddle.net>
2016-05-12tcg: Clean up direct block chaining safety checksSergey Fedorov
We don't take care of direct jumps when address mapping changes. Thus we must be sure to generate direct jumps so that they always keep valid even if address mapping changes. Luckily, we can only allow to execute a TB if it was generated from the pages which match with current mapping. Document tcg_gen_goto_tb() declaration and note the reason for destination PC limitations. Some targets with variable length instructions allow TB to straddle a page boundary. However, we make sure that both of TB pages match the current address mapping when looking up TBs. So it is safe to do direct jumps into the both pages. Correct the checks for some of those targets. Given that, we can safely patch a TB which spans two pages. Remove the unnecessary check in cpu_exec() and allow such TBs to be patched. Signed-off-by: Sergey Fedorov <serge.fdrv@gmail.com> Signed-off-by: Sergey Fedorov <sergey.fedorov@linaro.org> Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Signed-off-by: Richard Henderson <rth@twiddle.net>
2016-05-12tb: consistently use uint32_t for tb->flagsEmilio G. Cota
We are inconsistent with the type of tb->flags: usage varies loosely between int and uint64_t. Settle to uint32_t everywhere, which is superior to both: at least one target (aarch64) uses the most significant bit in the u32, and uint64_t is wasteful. Compile-tested for all targets. Suggested-by: Laurent Desnogues <laurent.desnogues@gmail.com> Suggested-by: Richard Henderson <rth@twiddle.net> Tested-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com> Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com> Reviewed-by: Laurent Desnogues <laurent.desnogues@gmail.com> Signed-off-by: Emilio G. Cota <cota@braap.org> Signed-off-by: Richard Henderson <rth@twiddle.net> Message-Id: <1460049562-23517-1-git-send-email-cota@braap.org>
2016-03-22include/qemu/osdep.h: Don't include qapi/error.hMarkus Armbruster
Commit 57cb38b included qapi/error.h into qemu/osdep.h to get the Error typedef. Since then, we've moved to include qemu/osdep.h everywhere. Its file comment explains: "To avoid getting into possible circular include dependencies, this file should not include any other QEMU headers, with the exceptions of config-host.h, compiler.h, os-posix.h and os-win32.h, all of which are doing a similar job to this file and are under similar constraints." qapi/error.h doesn't do a similar job, and it doesn't adhere to similar constraints: it includes qapi-types.h. That's in excess of 100KiB of crap most .c files don't actually need. Add the typedef to qemu/typedefs.h, and include that instead of qapi/error.h. Include qapi/error.h in .c files that need it and don't get it now. Include qapi-types.h in qom/object.h for uint16List. Update scripts/clean-includes accordingly. Update it further to match reality: replace config.h by config-target.h, add sysemu/os-posix.h, sysemu/os-win32.h. Update the list of includes in the qemu/osdep.h comment quoted above similarly. This reduces the number of objects depending on qapi/error.h from "all of them" to less than a third. Unfortunately, the number depending on qapi-types.h shrinks only a little. More work is needed for that one. Signed-off-by: Markus Armbruster <armbru@redhat.com> [Fix compilation without the spice devel packages. - Paolo] Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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>
2016-01-29m68k: 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: 1453832250-766-31-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 m68k specific disas setupPeter Crosthwaite
Move the target_disas() m68k 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> Reviewed-by: Laurent Vivier <laurent@vivier.eu> Reviewed-by: Greg Ungerer <gerg@uclinux.org> 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>