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2016-12-20Move target-* CPU file into a target/ folderThomas Huth
We've currently got 18 architectures in QEMU, and thus 18 target-xxx folders in the root folder of the QEMU source tree. More architectures (e.g. RISC-V, AVR) are likely to be included soon, too, so the main folder of the QEMU sources slowly gets quite overcrowded with the target-xxx folders. To disburden the main folder a little bit, let's move the target-xxx folders into a dedicated target/ folder, so that target-xxx/ simply becomes target/xxx/ instead. Acked-by: Laurent Vivier <laurent@vivier.eu> [m68k part] Acked-by: Bastian Koppelmann <kbastian@mail.uni-paderborn.de> [tricore part] Acked-by: Michael Walle <michael@walle.cc> [lm32 part] Acked-by: Cornelia Huck <cornelia.huck@de.ibm.com> [s390x part] Reviewed-by: Christian Borntraeger <borntraeger@de.ibm.com> [s390x part] Acked-by: Eduardo Habkost <ehabkost@redhat.com> [i386 part] Acked-by: Artyom Tarasenko <atar4qemu@gmail.com> [sparc part] Acked-by: Richard Henderson <rth@twiddle.net> [alpha part] Acked-by: Max Filippov <jcmvbkbc@gmail.com> [xtensa part] Reviewed-by: David Gibson <david@gibson.dropbear.id.au> [ppc part] Acked-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com> [cris&microblaze part] Acked-by: Guan Xuetao <gxt@mprc.pku.edu.cn> [unicore32 part] Signed-off-by: Thomas Huth <thuth@redhat.com>
2016-10-28target-m68k: introduce byte and word cc_opsLaurent Vivier
Signed-off-by: Laurent Vivier <laurent@vivier.eu> Reviewed-by: Richard Henderson <rth@twiddle.net>
2016-10-28target-m68k: Inline addx, subx, negxRichard Henderson
Signed-off-by: Richard Henderson <rth@twiddle.net> And add opcodes for 680x0 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: 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: 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>
2016-09-13target-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>
2016-06-24softfloat: 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>
2016-05-19cpu: 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>
2016-01-29m68k: 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
2014-09-25target-m68k: Use cpu_exec_enter/exit qom hooksRichard Henderson
Signed-off-by: Richard Henderson <rth@twiddle.net> Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Message-id: 1410626734-3804-5-git-send-email-rth@twiddle.net Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
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>
2014-03-13cputlb: Change tlb_set_page() 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: Move exception_index field from CPU_COMMON to CPUStateAndreas Färber
Signed-off-by: Andreas Färber <afaerber@suse.de>
2014-03-13cpu: Turn cpu_handle_mmu_fault() into a CPUClass hookAndreas Färber
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>
2013-10-11Merge remote-tracking branch 'rth/tcg-pull' into stagingAnthony Liguori
# By Richard Henderson # Via Richard Henderson * rth/tcg-pull: exec: Add both big- and little-endian memory helpers tcg: Add qemu_ld_st_i32/64 tcg: Add TCGMemOp configure: Remove CONFIG_QEMU_LDST_OPTIMIZATION tcg: Add tcg-be-ldst.h tcg: Add tcg-be-null.h exec: Delete is_tcg_gen_code and GETRA_EXT tcg-aarch64: Update to helper_ret_*_mmu routines tcg: Merge tcg_register_helper into tcg_context_init tcg: Add tcg-runtime.c helpers to all_helpers tcg: Put target helper data into an array. tcg: Remove stray semi-colons from target-*/helper.h tcg: Move helper registration into tcg_context_init target-m68k: Rename helpers.h to helper.h tcg: Use a GHashTable for tcg_find_helper tcg: Delete tcg_helper_get_name declaration tcg-hppa: Remove tcg backend Message-id: 1381440525-6666-1-git-send-email-rth@twiddle.net Signed-off-by: Anthony Liguori <aliguori@amazon.com>
2013-10-10target-m68k: Rename helpers.h to helper.hRichard Henderson
This brings the m68k target in line with all other targets. Reviewed-by: Stefan Weil <sw@weilnetz.de> Signed-off-by: Richard Henderson <rth@twiddle.net>
2013-10-07cpu: Drop cpu_model_str from CPU_COMMONAndreas Färber
Since this is only read in cpu_copy() and linux-user has a global cpu_model, drop the field from generic code. Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-07-23gdbstub: Change gdb_register_coprocessor() argument to CPUStateAndreas Färber
Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-07-23cpu: Turn cpu_get_phys_page_debug() into a CPUClass hookAndreas Färber
Change breakpoint_invalidate() argument to CPUState alongside. Since all targets now assign a softmmu-only field, we can drop helpers cpu_class_set_{do_unassigned_access,vmsd}() and device_class_set_vmsd(). Prepares for changing cpu_memory_rw_debug() argument to CPUState. Acked-by: Max Filippov <jcmvbkbc@gmail.com> (for xtensa) Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-03-12cpu: Pass CPUState to cpu_interrupt()Andreas Färber
Move it to qom/cpu.h to avoid issues with include order. Change pc_acpi_smi_interrupt() opaque to X86CPU. Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-03-12exec: Pass CPUState to cpu_reset_interrupt()Andreas Färber
Move it to qom/cpu.c to avoid build failures depending on include order of cpu-qom.h and exec/cpu-all.h. Change opaques of various ..._irq_handler() functions to the appropriate CPU type to facilitate using cpu_reset_interrupt(). Fix Coding Style issues while at it (missing braces, indentation). Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-02-16target-m68k: Pass M68kCPU to m68k_set_irq_level()Andreas Färber
Simplifies use of cpu_reset_interrupt() et al. Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-02-16target-m68k: Return M68kCPU from cpu_m68k_init()Andreas Färber
Turn cpu_init() into a static inline function for backwards compatibility. Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-02-16target-m68k: Move TCG initialization to M68kCPU initfnAndreas Färber
Add a tcg_enabled() check to suppress it for qtest. Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-02-16target-m68k: Introduce QOM realizefn for M68kCPUAndreas Färber
Introduce realizefn and set realized = true in cpu_m68k_init(). Split off GDB registration to a new m68k_cpu_init_gdb() so that it can be called from the realizefn. Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-02-01target-m68k: Rename CPU subtypesAndreas Färber
In the initial conversion of CPU models to QOM types, model names were mapped 1:1 to type names. As a side effect this gained us a type "any", which is now a device. To avoid "-device any" silliness and to pave the way for compiling multiple targets into one executable, adopt a <name>-<arch>-cpu scheme. No functional changes for -cpu arguments or -cpu ? output. Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-01-27target-m68k: Detect attempt to instantiate non-CPU type in cpu_init()Andreas Färber
Consolidate model checking into a new m68k_cpu_class_by_name(). If the name matches an existing type, also check whether that type is (a sub-type of) TYPE_M68K_CPU. This fixes, e.g., -cpu ide-hd asserting. Signed-off-by: Andreas Färber <afaerber@suse.de>
2012-12-23Merge branch 'master' of git://git.qemu.org/qemu into qom-cpuAndreas Färber
Adapt header include paths. Signed-off-by: Andreas Färber <afaerber@suse.de>
2012-12-19cpu: Introduce CPUListState structAndreas Färber
This generalizes {ARM,M68k,Alpha}CPUListState to avoid declaring it for each target. Place it in cpu-common.h to avoid circular dependencies. Signed-off-by: Andreas Färber <afaerber@suse.de> Reviewed-by: Igor Mammedov <imammedo@redhat.com> Reviewed-by: Eduardo Habkost <ehabkost@redhat.com>
2012-12-19exec: move include files to include/exec/Paolo Bonzini
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2012-10-23Rename target_phys_addr_t to hwaddrAvi Kivity
target_phys_addr_t is unwieldly, violates the C standard (_t suffixes are reserved) and its purpose doesn't match the name (most target_phys_addr_t addresses are not target specific). Replace it with a finger-friendly, standards conformant hwaddr. Outstanding patchsets can be fixed up with the command git rebase -i --exec 'find -name "*.[ch]" | xargs s/target_phys_addr_t/hwaddr/g' origin Signed-off-by: Avi Kivity <avi@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-06-04Kill off cpu_state_reset()Andreas Färber
In commit 1bba0dc932e8826a7d030df3767daf0bc339f9a2 cpu_reset() was renamed to cpu_state_reset(), to allow introducing a new cpu_reset() that would operate on QOM objects. All callers have been updated except for one in target-mips, so drop all implementations except for the one in target-mips and move the declaration there until MIPSCPU reset can be fully QOM'ified. Signed-off-by: Andreas Färber <afaerber@suse.de> Acked-by: Michael Walle <michael@walle.cc> (for lm32) Acked-by: Max Filippov <jcmvbkbc@gmail.com> (for xtensa) Acked-by: Edgar E. Iglesias <edgar.iglesias@gmail.com> (for mb + cris) Acked-by: Alexander Graf <agraf@suse.de> (for ppc) Acked-by: Blue Swirl <blauwirbel@gmail.com>
2012-04-30target-m68k: Add QOM CPU subclassesAndreas Färber
Move code from cpu_m68k_set_model() into model-specific initfns and inline the remaining parts into cpu_m68k_init(). Let m68k_cpu_list() print CPU classes alphabetically except for "any". Signed-off-by: Andreas Färber <afaerber@suse.de> Reviewed-by: Laurent Vivier <Laurent@Vivier.EU> Tested-by: Laurent Vivier <Laurent@Vivier.EU>
2012-04-30target-m68k: Start QOM'ifying CPU initAndreas Färber
Move model-independent code from cpu_m68k_init() into a QOM initfn. Signed-off-by: Andreas Färber <afaerber@suse.de> Reviewed-by: Laurent Vivier <Laurent@Vivier.EU> Tested-by: Laurent Vivier <Laurent@Vivier.EU>
2012-04-30target-m68k: QOM'ify CPU resetAndreas Färber
Move code from cpu_state_reset() into QOM m68k_cpu_reset(). Signed-off-by: Andreas Färber <afaerber@suse.de> Reviewed-by: Laurent Vivier <Laurent@Vivier.EU> Tested-by: Laurent Vivier <Laurent@Vivier.EU>
2012-04-30target-m68k: QOM'ify CPUAndreas Färber
Embed CPUM68KState as first member of QOM M68kCPU. Drop cpu_m68k_close() in favor of object_delete(). Let CPUClass::reset() call cpu_state_reset() for now. Signed-off-by: Andreas Färber <afaerber@suse.de> Reviewed-by: Laurent Vivier <Laurent@Vivier.EU> Tested-by: Laurent Vivier <Laurent@Vivier.EU>
2012-03-14target-m68k: Don't overuse CPUStateAndreas Färber
Scripted conversion: sed -i "s/CPUState/CPUM68KState/g" target-m68k/*.[hc] sed -i "s/#define CPUM68KState/#define CPUState/" target-m68k/cpu.h Signed-off-by: Andreas Färber <afaerber@suse.de> Acked-by: Anthony Liguori <aliguori@us.ibm.com>
2012-03-14Rename cpu_reset() to cpu_state_reset()Andreas Färber
Frees the identifier cpu_reset for QOM CPUs (manual rename). Don't hide the parameter type behind explicit casts, use static functions with strongly typed argument to indirect. Signed-off-by: Andreas Färber <afaerber@suse.de> Reviewed-by: Anthony Liguori <aliguori@us.ibm.com>
2012-02-28target-m68k: Clean includesStefan Weil
config.h was missing in cpu.h. Signed-off-by: Stefan Weil <sw@weilnetz.de>
2011-08-20Use glib memory allocation and free functionsAnthony Liguori
qemu_malloc/qemu_free no longer exist after this commit. Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2011-08-07Remove unused is_softmmu parameter from cpu_handle_mmu_faultBlue Swirl
Parameter is_softmmu (and its evil mutant twin brother is_softmuu) is not used in cpu_*_handle_mmu_fault() functions, remove them and adjust callers. Acked-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2011-06-26Remove exec-all.h include directivesBlue Swirl
Most exec-all.h include directives are now useless, remove them. Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2011-05-08Fix typos in comments and code (occured -> occurred and related)Stefan Weil
The code changed here is an unused data type name (evt_flush_occurred). Signed-off-by: Stefan Weil <weil@mail.berlios.de> Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
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