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2023-04-23tcg: Split out tcg_out_ext16uRichard Henderson
We will need a backend interface for performing 16-bit zero-extend. Use it in tcg_reg_alloc_op in the meantime. Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-04-23tcg: Split out tcg_out_ext16sRichard Henderson
We will need a backend interface for performing 16-bit sign-extend. Use it in tcg_reg_alloc_op in the meantime. Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-04-23tcg: Split out tcg_out_ext8uRichard Henderson
We will need a backend interface for performing 8-bit zero-extend. Use it in tcg_reg_alloc_op in the meantime. Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-04-23tcg: Split out tcg_out_ext8sRichard Henderson
We will need a backend interface for performing 8-bit sign-extend. Use it in tcg_reg_alloc_op in the meantime. Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-02-04tcg: Add TCG_TARGET_CALL_{RET,ARG}_I128Richard Henderson
Fill in the parameters for the host ABI for Int128 for those backends which require no extra modification. Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Reviewed-by: Daniel Henrique Barboza <danielhb413@gmail.com> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-02-04tcg: Introduce tcg_target_call_oarg_regRichard Henderson
Replace the flat array tcg_target_call_oarg_regs[] with a function call including the TCGCallReturnKind. Extend the set of registers for ARM to r0-r3 to match the ABI: https://github.com/ARM-software/abi-aa/blob/main/aapcs32/aapcs32.rst#result-return Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Reviewed-by: Daniel Henrique Barboza <danielhb413@gmail.com> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-02-04tcg: Introduce tcg_out_addi_ptrRichard Henderson
Implement the function for arm, i386, and s390x, which will use it. Add stubs for all other backends. Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Reviewed-by: Daniel Henrique Barboza <danielhb413@gmail.com> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-01-20tcg/riscv: Use tcg_pcrel_diff in tcg_out_ldstRichard Henderson
We failed to update this with the w^x split, so misses the fact that true pc-relative offsets are usually small. Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Message-Id: <20230117230415.354239-1-richard.henderson@linaro.org> Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2023-01-17tcg/riscv: Implement direct branch for goto_tbRichard Henderson
Now that tcg can handle direct and indirect goto_tb simultaneously, we can optimistically leave space for a direct branch and fall back to loading the pointer from the TB for an indirect branch. Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-01-17tcg/riscv: Introduce OPC_NOPRichard Henderson
Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-01-17tcg: Remove TCG_TARGET_HAS_direct_jumpRichard Henderson
We now have the option to generate direct or indirect goto_tb depending on the dynamic displacement, thus the define is no longer necessary or completely accurate. Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-01-17tcg: Always define tb_target_set_jmp_targetRichard Henderson
Install empty versions for !TCG_TARGET_HAS_direct_jump hosts. Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-01-17tcg: Move tb_target_set_jmp_target declaration to tcg.hRichard Henderson
Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-01-17tcg: Change tb_target_set_jmp_target argumentsRichard Henderson
Replace 'tc_ptr' and 'addr' with 'tb' and 'n'. Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-01-17tcg: Split out tcg_out_goto_tbRichard Henderson
The INDEX_op_goto_tb opcode needs no register allocation. Split out a dedicated helper function for it. Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-01-17tcg: Introduce get_jmp_target_addrRichard Henderson
Similar to the existing set_jmp_reset_offset. Include the rw->rx address space conversion done by arm and s390x, and forgotten by mips and riscv. Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-01-17tcg: Replace asserts on tcg_jmp_insn_offsetRichard Henderson
Test TCG_TARGET_HAS_direct_jump instead of testing an implementation pointer. Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-01-17tcg: Split out tcg_out_exit_tbRichard Henderson
The INDEX_op_exit_tb opcode needs no register allocation. Split out a dedicated helper function for it. Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-01-06Merge tag 'pull-riscv-to-apply-20230106' of ↵Peter Maydell
https://github.com/alistair23/qemu into staging First RISC-V PR for QEMU 8.0 * Fix PMP propagation for tlb * Collection of bug fixes * Bump the OpenTitan supported version * Add smstateen support * Support native debug icount trigger * Remove the redundant ipi-id property in the virt machine * Support cache-related PMU events in virtual mode * Add some missing PolarFire SoC io regions * Fix mret exception cause when no pmp rule is configured * Fix bug where disabling compressed instructions would crash QEMU * Add Zawrs ISA extension support * A range of code refactoring and cleanups # gpg: Signature made Fri 06 Jan 2023 00:47:23 GMT # gpg: using RSA key F6C4AC46D4934868D3B8CE8F21E10D29DF977054 # gpg: Good signature from "Alistair Francis <alistair@alistair23.me>" [full] # Primary key fingerprint: F6C4 AC46 D493 4868 D3B8 CE8F 21E1 0D29 DF97 7054 * tag 'pull-riscv-to-apply-20230106' of https://github.com/alistair23/qemu: (43 commits) hw/intc: sifive_plic: Fix the pending register range check hw/riscv: opentitan: Drop "hartid-base" and "priority-base" initialization hw/intc: sifive_plic: Change "priority-base" to start from interrupt source 0 hw/riscv: virt: Fix the value of "riscv, ndev" in the dtb hw/riscv: sifive_u: Avoid using magic number for "riscv, ndev" hw/riscv: sifive_e: Fix the number of interrupt sources of PLIC hw/riscv: microchip_pfsoc: Fix the number of interrupt sources of PLIC hw/intc: sifive_plic: Update "num-sources" property default value hw/intc: sifive_plic: Use error_setg() to propagate the error up via errp in sifive_plic_realize() hw/intc: sifive_plic: Improve robustness of the PLIC config parser hw/intc: sifive_plic: Drop PLICMode_H hw/riscv: spike: Remove misleading comments hw/riscv: Sort machines Kconfig options in alphabetical order hw/riscv: Fix opentitan dependency to SIFIVE_PLIC hw/intc: Select MSI_NONBROKEN in RISC-V AIA interrupt controllers hw/riscv: Select MSI_NONBROKEN in SIFIVE_PLIC RISC-V: Add Zawrs ISA extension support target/riscv: Clear mstatus.MPRV when leaving M-mode for priv spec 1.12+ target/riscv: Simplify helper_sret() a little bit target/riscv: Set pc_succ_insn for !rvc illegal insn ... Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2023-01-06tcg/riscv: Fix base register for user-only qemu_ld/stRichard Henderson
When guest_base != 0, we were not coordinating the usage of TCG_REG_TMP0 as base properly, leading to a previous zero-extend of the input address being discarded. Shuffle the alignment check to the front, because that does not depend on the zero-extend, and it keeps the register usage clear. Set base after each step of the address arithmetic instead of before. Return the base register used from tcg_out_tlb_load, so as to keep that register choice localized to that function. Reported-by: LIU Zhiwei <zhiwei_liu@linux.alibaba.com> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: LIU Zhiwei <zhiwei_liu@linux.alibaba.com> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Message-Id: <20221023233337.2846860-1-richard.henderson@linaro.org> Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2023-01-06tcg/riscv: Fix reg overlap case in tcg_out_addsub2Richard Henderson
There was a typo using opc_addi instead of opc_add with the two registers. While we're at it, simplify the gating test to al == bl to improve dynamic scheduling even when the output register does not overlap the inputs. Reported-by: LIU Zhiwei <zhiwei_liu@linux.alibaba.com> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Message-Id: <20221020233836.2341671-1-richard.henderson@linaro.org> Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2023-01-06tcg/riscv: Fix range matched by TCG_CT_CONST_M12Richard Henderson
We were matching a signed 13-bit range, not a 12-bit range. Expand the commentary within the function and be explicit about all of the ranges. Reported-by: LIU Zhiwei <zhiwei_liu@linux.alibaba.com> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: LIU Zhiwei <zhiwei_liu@linux.alibaba.com> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Message-Id: <20221022095821.2441874-1-richard.henderson@linaro.org> Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2023-01-05tcg: Add TCGHelperInfo argument to tcg_out_callRichard Henderson
This eliminates an ifdef for TCI, and will be required for expanding the call for TCGv_i128. Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-01-05tcg: Replace TCG_TARGET_EXTEND_ARGS with TCG_TARGET_CALL_ARG_I32Richard Henderson
For 64-bit hosts that had TCG_TARGET_EXTEND_ARGS, set TCG_TARGET_CALL_ARG_I32 to TCG_CALL_ARG_EXTEND. Otherwise, use TCG_CALL_ARG_NORMAL. Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-01-05tcg: Replace TCG_TARGET_CALL_ALIGN_ARGS with TCG_TARGET_CALL_ARG_I64Richard Henderson
For 32-bit hosts when TCG_TARGET_CALL_ALIGN_ARGS was set, use TCG_CALL_ARG_EVEN. For 64-bit hosts, TCG_TARGET_CALL_ALIGN_ARGS was silently ignored, so always use TCG_CALL_ARG_NORMAL. Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Signed-off-by: Richard Henderson <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>
2022-02-09tcg/riscv: Support raising sigbus for user-onlyRichard Henderson
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
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>
2021-10-05tcg: Rename TCGMemOpIdx to MemOpIdxRichard Henderson
We're about to move this out of tcg.h, so rename it as we did when moving MemOp. Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2021-10-05tcg: Expand MO_SIZE to 3 bitsRichard Henderson
We have lacked expressive support for memory sizes larger than 64-bits for a while. Fixing that requires adjustment to several points where we used this for array indexing, and two places that develop -Wswitch warnings after the change. Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2021-09-21tcg/riscv: Remove add with zero on user-only memory accessRichard Henderson
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2021-07-09tcg: Remove TCG_TARGET_HAS_goto_ptrRichard Henderson
Since 6eea04347eb6, all tcg backends support goto_ptr. Remove the conditional, making support mandatory. Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2021-06-29tcg/riscv: Remove MO_BSWAP handlingRichard Henderson
TCG_TARGET_HAS_MEMORY_BSWAP is already unset for this backend, which means that MO_BSWAP be handled by the middle-end and will never be seen by the backend. Thus the indexes used with qemu_{ld,st}_helpers will always be zero. Tidy the comments and asserts in tcg_out_qemu_{ld,st}_direct. It is not that we do not handle bswap "yet", but never will. Acked-by: Alistair Francis <alistair.francis@wdc.com> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2021-06-11tcg: Move MAX_CODE_GEN_BUFFER_SIZE to tcg-target.hRichard Henderson
Remove the ifdef ladder and move each define into the appropriate header file. Reviewed-by: Luis Pires <luis.pires@eldorado.org.br> Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2021-06-04tcg: Change parameters for tcg_target_const_matchRichard Henderson
Change the return value to bool, because that's what is should have been from the start. Pass the ct mask instead of the whole TCGArgConstraint, as that's the only part that's relevant. Change the value argument to int64_t. We will need the extra width for 32-bit hosts wanting to match vector constants. Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2021-03-17tcg: Fix prototypes for tcg_out_vec_op and tcg_out_opMiroslav Rezanina
There are two different versions of prototype for tcg_out_op and tcg_out_vec_op functions: 1) using const TCGArg *args and const int *const_args arguments 2) using const TCGArg args[TCG_MAX_OP_ARGS] and const int const_args[TCG_MAX_OP_ARGS] aguments. This duality causes warnings on GCC 11 and prevents build using --enable-werror. As second version provides more information, unify functions prototypes to this variant. Signed-off-by: Miroslav Rezanina <mrezanin@redhat.com> Message-Id: <20210312121418.139093-1-mrezanin@redhat.com> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2021-02-02tcg: Remove TCG_TARGET_CON_SET_HRichard Henderson
All backends have now been converted to tcg-target-con-set.h, so we can remove the fallback code. Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2021-02-02tcg/riscv: Split out constraint sets to tcg-target-con-set.hRichard Henderson
Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2021-02-02tcg: Remove TCG_TARGET_CON_STR_HRichard Henderson
All backends have now been converted to tcg-target-con-str.h, so we can remove the fallback code. Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2021-02-02tcg/riscv: Split out target constraints to tcg-target-con-str.hRichard Henderson
Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2021-01-13tcg: Remove movi and dupi opcodesRichard Henderson
These are now completely covered by mov from a TYPE_CONST temporary. Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Reviewed-by: Aleksandar Markovic <aleksandar.qemu.devel@gmail.com> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2021-01-07tcg: Constify TCGLabelQemuLdst.raddrRichard Henderson
Now that all native tcg hosts support splitwx, make this pointer const. Reviewed-by: Joelle van Dyne <j@getutm.app> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2021-01-07tcg: Constify tcg_code_gen_epilogueRichard Henderson
Now that all native tcg hosts support splitwx, make this pointer const. Reviewed-by: Joelle van Dyne <j@getutm.app> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2021-01-07tcg: Remove TCG_TARGET_SUPPORT_MIRRORRichard Henderson
Now that all native tcg hosts support splitwx, remove the define. Replace the one use with a test for CONFIG_TCG_INTERPRETER. Reviewed-by: Joelle van Dyne <j@getutm.app> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2021-01-07tcg/riscv: Support split-wx code generationRichard Henderson
Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2021-01-07tcg/riscv: Remove branch-over-branch fallbackRichard Henderson
Since 7ecd02a06f8, we are prepared to re-start code generation with a smaller TB if a relocation is out of range. We no longer need to leave a nop in the stream Just In Case. Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2021-01-07tcg/riscv: Fix branch range checksRichard Henderson
The offset even checks were folded into the range check incorrectly. By offsetting by 1, and not decrementing the width, we silently allowed out of range branches. Assert that the offset is always even instead. Move tcg_out_goto down into the CONFIG_SOFTMMU block so that it is not unused. Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2021-01-07tcg: Add --accel tcg,split-wx propertyRichard Henderson
Plumb the value through to alloc_code_gen_buffer. This is not supported by any os or tcg backend, so for now enabling it will result in an error. Reviewed-by: Joelle van Dyne <j@getutm.app> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2021-01-07tcg: Adjust tb_target_set_jmp_target for split-wxRichard Henderson
Pass both rx and rw addresses to tb_target_set_jmp_target. Reviewed-by: Joelle van Dyne <j@getutm.app> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2021-01-07tcg: Adjust tcg_register_jit for constRichard Henderson
We must change all targets at once, since all must match the declaration in tcg.c. Reviewed-by: Joelle van Dyne <j@getutm.app> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
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