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2022-11-16s390x: Fix spelling errorsThomas Huth
Fix typos (discovered with the 'codespell' utility). Note: Though "migrateable" still seems to be a valid spelling, we change it to "migratable" since this is the way more common spelling here. Message-Id: <20221111182828.282251-1-thuth@redhat.com> Reviewed-by: Stefan Weil <sw@weilnetz.de> Reviewed-by: Ilya Leoshkevich <iii@linux.ibm.com> Signed-off-by: Thomas Huth <thuth@redhat.com>
2022-11-05target/s390x: Rename insn-data/format.def -> insn-data/format.h.incPhilippe Mathieu-Daudé
We use the .h.inc extension to include C headers. To be consistent with the rest of the codebase, rename the C headers using the .def extension. IDE/tools using our .editorconfig / .gitattributes will leverage this consistency. Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: Thomas Huth <thuth@redhat.com> Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Message-Id: <20221025235006.7215-3-philmd@linaro.org> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2022-10-31target/s390x: fake instruction loading when handling 'ex'Alex Bennée
The s390x EXecute instruction is a bit weird as we synthesis the executed instruction from what we have stored in memory. This missed the plugin instrumentation. Work around this with a special helper to inform the rest of the translator about the instruction so things stay consistent. Reviewed-by: David Hildenbrand <david@redhat.com> Acked-by: Ilya Leoshkevich <iii@linux.ibm.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Alex Bennée <alex.bennee@linaro.org> Cc: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20221027183637.2772968-26-alex.bennee@linaro.org>
2022-10-31target/s390x: don't probe next pc for EXecuted insnsAlex Bennée
We have finished the TB anyway so we can shortcut the other tests by checking dc->ex_value first. Reviewed-by: David Hildenbrand <david@redhat.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Acked-by: Ilya Leoshkevich <iii@linux.ibm.com> Signed-off-by: Alex Bennée <alex.bennee@linaro.org> Message-Id: <20221027183637.2772968-25-alex.bennee@linaro.org>
2022-10-31target/s390x: don't use ld_code2 to probe next pcAlex Bennée
This isn't an translator picking up an instruction so we shouldn't use the translator_lduw function which has side effects for plugins. Reviewed-by: David Hildenbrand <david@redhat.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Acked-by: Ilya Leoshkevich <iii@linux.ibm.com> Signed-off-by: Alex Bennée <alex.bennee@linaro.org> Message-Id: <20221027183637.2772968-24-alex.bennee@linaro.org>
2022-10-26target/s390x: Convert to tcg_ops restore_state_to_opcRichard Henderson
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2022-09-06target/s390x: Make translator stop before the end of a pageIlya Leoshkevich
Right now translator stops right *after* the end of a page, which breaks reporting of fault locations when the last instruction of a multi-insn translation block crosses a page boundary. Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20220817150506.592862-3-iii@linux.ibm.com> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2022-09-06accel/tcg: Add pc and host_pc params to gen_intermediate_codeRichard Henderson
Pass these along to translator_loop -- pc may be used instead of tb->pc, and host_pc is currently unused. Adjust all targets at one time. Acked-by: Alistair Francis <alistair.francis@wdc.com> Acked-by: Ilya Leoshkevich <iii@linux.ibm.com> Tested-by: Ilya Leoshkevich <iii@linux.ibm.com> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2022-07-06target/s390x: Exit tb after executing ex_valueRichard Henderson
When EXECUTE sets ex_value to interrupt the constructed instruction, we implicitly disable interrupts so that the value is not corrupted. Exit to the main loop after execution, so that we re-evaluate any pending interrupts. Reported-by: Sven Schnelle <svens@linux.ibm.com> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20220702060228.420454-5-richard.henderson@linaro.org> Signed-off-by: Thomas Huth <thuth@redhat.com>
2022-07-06target/s390x: Remove DISAS_PC_STALE_NOCHAINRichard Henderson
Replace this with a flag: exit_to_mainloop. We can now control the exit for each of DISAS_TOO_MANY, DISAS_PC_UPDATED, and DISAS_PC_CC_UPDATED, and fold in the check for PER. Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20220702060228.420454-4-richard.henderson@linaro.org> Signed-off-by: Thomas Huth <thuth@redhat.com>
2022-07-06target/s390x: Remove DISAS_PC_STALERichard Henderson
There is nothing to distinguish this from DISAS_TOO_MANY. Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20220702060228.420454-3-richard.henderson@linaro.org> Signed-off-by: Thomas Huth <thuth@redhat.com>
2022-07-06target/s390x: Remove DISAS_GOTO_TBRichard Henderson
There is nothing to distinguish this from DISAS_NORETURN. Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20220702060228.420454-2-richard.henderson@linaro.org> Signed-off-by: Thomas Huth <thuth@redhat.com>
2022-06-02s390: Typo fix FLOATING_POINT_SUPPPORT_ENHDr. David Alan Gilbert
One less P needed. Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Message-Id: <20220523115123.150340-1-dgilbert@redhat.com> Signed-off-by: Thomas Huth <thuth@redhat.com>
2022-05-04target/s390x: vxeh2: vector string searchDavid Miller
Signed-off-by: David Miller <dmiller423@gmail.com> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: David Hildenbrand <david@redhat.com> Tested-by: Thomas Huth <thuth@redhat.com> Reviewed-by: David Hildenbrand <david@redhat.com> Message-Id: <20220428094708.84835-7-david@redhat.com> Signed-off-by: Thomas Huth <thuth@redhat.com>
2022-04-26target/s390x: Fix the accumulation of ccm in op_icmRichard Henderson
Coverity rightly reports that 0xff << pos can overflow. This would affect the ICMH instruction. Fixes: Coverity CID 1487161 Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: David Hildenbrand <david@redhat.com> Reviewed-by: Thomas Huth <thuth@redhat.com> Message-Id: <20220401193659.332079-1-richard.henderson@linaro.org>
2022-04-20exec/translator: Pass the locked filepointer to disas_log hookRichard Henderson
We have fetched and locked the logfile in translator_loop. Pass the filepointer down to the disas_log hook so that it need not be fetched and locked again. Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20220417183019.755276-13-richard.henderson@linaro.org>
2022-04-06Replace config-time define HOST_WORDS_BIGENDIANMarc-André Lureau
Replace a config-time define with a compile time condition define (compatible with clang and gcc) that must be declared prior to its usage. This avoids having a global configure time define, but also prevents from bad usage, if the config header wasn't included before. This can help to make some code independent from qemu too. gcc supports __BYTE_ORDER__ from about 4.6 and clang from 3.2. Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> [ For the s390x parts I'm involved in ] Acked-by: Halil Pasic <pasic@linux.ibm.com> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20220323155743.1585078-7-marcandre.lureau@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2022-03-16s390x/tcg: Fix BRCL with a large negative offsetIlya Leoshkevich
When RI2 is 0x80000000, qemu enters an infinite loop instead of jumping backwards. Fix by adding a missing cast, like in in2_ri2(). Fixes: 7233f2ed1717 ("target-s390: Convert BRANCH ON CONDITION") Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com> Message-Id: <20220314104232.675863-3-iii@linux.ibm.com> Reviewed-by: David Hildenbrand <david@redhat.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Thomas Huth <thuth@redhat.com>
2022-03-16s390x/tcg: Fix BRASL with a large negative offsetIlya Leoshkevich
When RI2 is 0x80000000, qemu enters an infinite loop instead of jumping backwards. Fix by adding a missing cast, like in in2_ri2(). Fixes: 8ac33cdb8bfb ("Convert BRANCH AND SAVE") Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com> Message-Id: <20220314104232.675863-2-iii@linux.ibm.com> Reviewed-by: David Hildenbrand <david@redhat.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Thomas Huth <thuth@redhat.com>
2022-02-28s390x/tcg: Implement Miscellaneous-Instruction-Extensions Facility 3 for the ↵David Miller
s390x implements: AND WITH COMPLEMENT (NCRK, NCGRK) NAND (NNRK, NNGRK) NOT EXCLUSIVE OR (NXRK, NXGRK) NOR (NORK, NOGRK) OR WITH COMPLEMENT (OCRK, OCGRK) SELECT (SELR, SELGR) SELECT HIGH (SELFHR) MOVE RIGHT TO LEFT (MVCRL) POPULATION COUNT (POPCNT) Resolves: https://gitlab.com/qemu-project/qemu/-/issues/737 Signed-off-by: David Miller <dmiller423@gmail.com> Message-Id: <20220223223117.66660-2-dmiller423@gmail.com> Reviewed-by: David Hildenbrand <david@redhat.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Thomas Huth <thuth@redhat.com>
2022-02-25s390x: sck: load into a temporary not into in1Nico Boehr
We previously loaded into in1, but in1 is not filled during disassembly and hence always zero. This leads to an assertion failure: qemu-system-s390x: /home/nrb/qemu/include/tcg/tcg.h:654: temp_idx: Assertion `n >= 0 && n < tcg_ctx->nb_temps' failed.` Instead, use in2_la2_m64a to load from storage into in2 and pass that to the helper, which matches what we already do for SCKC. This fixes the SCK test I sent here under TCG: <https://www.spinics.net/lists/kvm/msg265169.html> Fixes: 9dc67537 ("s390x/tcg: implement SET CLOCK ") Suggested-by: David Hildenbrand <david@redhat.com> Signed-off-by: Nico Boehr <nrb@linux.ibm.com> Message-Id: <20220126084201.774457-1-nrb@linux.ibm.com> Reviewed-by: David Hildenbrand <david@redhat.com> Signed-off-by: Thomas Huth <thuth@redhat.com>
2022-01-17target/s390x: Fix shifting 32-bit values for more than 31 bitsIlya Leoshkevich
According to PoP, both 32- and 64-bit shifts use lowest 6 address bits. The current code special-cases 32-bit shifts to use only 5 bits, which is not correct. For example, shifting by 32 bits currently preserves the initial value, however, it's supposed zero it out instead. Fix by merging sh32 and sh64 and adapting CC calculation to shift values greater than 31. Fixes: cbe24bfa91d2 ("target-s390: Convert SHIFT, ROTATE SINGLE") Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com> Reviewed-by: David Hildenbrand <david@redhat.com> Message-Id: <20220112165016.226996-5-iii@linux.ibm.com> Signed-off-by: Thomas Huth <thuth@redhat.com>
2022-01-17target/s390x: Fix SRDA CC calculationIlya Leoshkevich
SRDA uses r1_D32 for binding the first operand and s64 for setting CC. cout_s64() relies on o->out being the shift result, however, wout_r1_D32() clobbers it. Fix by using a temporary. Fixes: a79ba3398a0a ("target-s390: Convert SHIFT DOUBLE") Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com> Reviewed-by: David Hildenbrand <david@redhat.com> Message-Id: <20220112165016.226996-3-iii@linux.ibm.com> Signed-off-by: Thomas Huth <thuth@redhat.com>
2022-01-08exec/memop: Adding signedness to quad definitionsFrédéric Pétrot
Renaming defines for quad in their various forms so that their signedness is now explicit. Done using git grep as suggested by Philippe, with a bit of hand edition to keep assignments aligned. Signed-off-by: Frédéric Pétrot <frederic.petrot@univ-grenoble-alpes.fr> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Message-id: 20220106210108.138226-2-frederic.petrot@univ-grenoble-alpes.fr Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2021-10-15target/s390x: Drop check for singlestep_enabledRichard Henderson
GDB single-stepping is now handled generically. Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2021-10-12target/s390x: move tcg_gen_insn_start to s390x_tr_insn_startRichard Henderson
We use INDEX_op_insn_start to make the start of instruction boundaries. If we don't do it in the .insn_start hook things get confused especially now plugins want to use that marking to identify the start of instructions and will bomb out if it sees instrumented ops before the first instruction boundary. Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Message-Id: <20211011185332.166763-1-richard.henderson@linaro.org> Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
2021-09-14accel/tcg: Add DisasContextBase argument to translator_ld*Ilya Leoshkevich
Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com> [rth: Split out of a larger patch.] Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2021-07-21accel/tcg: Remove TranslatorOps.breakpoint_checkRichard Henderson
The hook is now unused, with breakpoints checked outside translation. Tested-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2021-07-12Merge remote-tracking branch 'remotes/cohuck-gitlab/tags/s390x-20210708' ↵Peter Maydell
into staging s390x updates: - add gen16 cpumodels - refactor/cleanup some code - bugfixes # gpg: Signature made Thu 08 Jul 2021 12:26:21 BST # gpg: using EDDSA key 69A3B536F5CBFC65208026C1DE88BB5641DE66C1 # gpg: issuer "cohuck@redhat.com" # gpg: Good signature from "Cornelia Huck <conny@cornelia-huck.de>" [unknown] # gpg: aka "Cornelia Huck <huckc@linux.vnet.ibm.com>" [full] # gpg: aka "Cornelia Huck <cornelia.huck@de.ibm.com>" [full] # gpg: aka "Cornelia Huck <cohuck@kernel.org>" [unknown] # gpg: aka "Cornelia Huck <cohuck@redhat.com>" [unknown] # Primary key fingerprint: C3D0 D66D C362 4FF6 A8C0 18CE DECF 6B93 C6F0 2FAF # Subkey fingerprint: 69A3 B536 F5CB FC65 2080 26C1 DE88 BB56 41DE 66C1 * remotes/cohuck-gitlab/tags/s390x-20210708: target/s390x: split sysemu part of cpu models target/s390x: move kvm files into kvm/ target/s390x: remove kvm-stub.c target/s390x: use kvm_enabled() to wrap call to kvm_s390_get_hpage_1m target/s390x: make helper.c sysemu-only target/s390x: split cpu-dump from helper.c target/s390x: move sysemu-only code out to cpu-sysemu.c target/s390x: start moving TCG-only code to tcg/ target/s390x: rename internal.h to s390x-internal.h target/s390x: remove tcg-stub.c hw/s390x: only build tod-tcg from the CONFIG_TCG build hw/s390x: tod: make explicit checks for accelerators when initializing hw/s390x: rename tod-qemu.c to tod-tcg.c target/s390x: meson: add target_user_arch s390x/tcg: Fix m5 vs. m4 field for VECTOR MULTIPLY SUM LOGICAL target/s390x: Fix CC set by CONVERT TO FIXED/LOGICAL s390x/cpumodel: add 3931 and 3932 Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2021-07-07target/s390x: start moving TCG-only code to tcg/Cho, Yu-Chen
move everything related to translate, as well as HELPER code in tcg/ mmu_helper.c stays put for now, as it contains both TCG and KVM code. After the reshuffling, update MAINTAINERS accordingly. Make use of the new directory: target/s390x/tcg/ Signed-off-by: Claudio Fontana <cfontana@suse.de> Signed-off-by: Cho, Yu-Chen <acho@suse.com> Acked-by: David Hildenbrand <david@redhat.com> Acked-by: Cornelia Huck <cohuck@redhat.com> Reviewed-by: Thomas Huth <thuth@redhat.com> Message-Id: <20210707105324.23400-8-acho@suse.com> Signed-off-by: Cornelia Huck <cohuck@redhat.com>
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