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Wed, 18 Aug 2021 12:19:26 -0700 (PDT) Received: from localhost.localdomain ([173.197.107.15]) by smtp.gmail.com with ESMTPSA id a6sm524108pjs.40.2021.08.18.12.19.25 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 18 Aug 2021 12:19:25 -0700 (PDT) From: Richard Henderson To: qemu-devel@nongnu.org Subject: [PATCH v3 02/66] hw/core: Make do_unaligned_access noreturn Date: Wed, 18 Aug 2021 09:18:16 -1000 Message-Id: <20210818191920.390759-3-richard.henderson@linaro.org> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20210818191920.390759-1-richard.henderson@linaro.org> References: <20210818191920.390759-1-richard.henderson@linaro.org> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Received-SPF: pass client-ip=2607:f8b0:4864:20::42c; envelope-from=richard.henderson@linaro.org; helo=mail-pf1-x42c.google.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: =?UTF-8?q?Alex=20Benn=C3=A9e?= , =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" While we may have had some thought of allowing system-mode to return from this hook, we have no guests that require this. Reviewed-by: Alex Bennée Reviewed-by: Philippe Mathieu-Daudé Signed-off-by: Richard Henderson --- include/hw/core/tcg-cpu-ops.h | 3 ++- target/alpha/cpu.h | 4 ++-- target/arm/internals.h | 2 +- target/microblaze/cpu.h | 2 +- target/mips/tcg/tcg-internal.h | 4 ++-- target/nios2/cpu.h | 4 ++-- target/ppc/internal.h | 4 ++-- target/riscv/cpu.h | 2 +- target/s390x/s390x-internal.h | 4 ++-- target/sh4/cpu.h | 4 ++-- target/xtensa/cpu.h | 4 ++-- target/hppa/cpu.c | 7 ++++--- 12 files changed, 23 insertions(+), 21 deletions(-) diff --git a/include/hw/core/tcg-cpu-ops.h b/include/hw/core/tcg-cpu-ops.h index eab27d0c03..ee0795def4 100644 --- a/include/hw/core/tcg-cpu-ops.h +++ b/include/hw/core/tcg-cpu-ops.h @@ -72,10 +72,11 @@ struct TCGCPUOps { MemTxResult response, uintptr_t retaddr); /** * @do_unaligned_access: Callback for unaligned access handling + * The callback must exit via raising an exception. */ void (*do_unaligned_access)(CPUState *cpu, vaddr addr, MMUAccessType access_type, - int mmu_idx, uintptr_t retaddr); + int mmu_idx, uintptr_t retaddr) QEMU_NORETURN; /** * @adjust_watchpoint_address: hack for cpu_check_watchpoint used by ARM diff --git a/target/alpha/cpu.h b/target/alpha/cpu.h index 82df108967..6eb3fcc63e 100644 --- a/target/alpha/cpu.h +++ b/target/alpha/cpu.h @@ -283,8 +283,8 @@ hwaddr alpha_cpu_get_phys_page_debug(CPUState *cpu, vaddr addr); int alpha_cpu_gdb_read_register(CPUState *cpu, GByteArray *buf, int reg); int alpha_cpu_gdb_write_register(CPUState *cpu, uint8_t *buf, int reg); void alpha_cpu_do_unaligned_access(CPUState *cpu, vaddr addr, - MMUAccessType access_type, - int mmu_idx, uintptr_t retaddr); + MMUAccessType access_type, int mmu_idx, + uintptr_t retaddr) QEMU_NORETURN; #define cpu_list alpha_cpu_list #define cpu_signal_handler cpu_alpha_signal_handler diff --git a/target/arm/internals.h b/target/arm/internals.h index cd2ea8a388..8a77929793 100644 --- a/target/arm/internals.h +++ b/target/arm/internals.h @@ -594,7 +594,7 @@ bool arm_s1_regime_using_lpae_format(CPUARMState *env, ARMMMUIdx mmu_idx); /* Raise a data fault alignment exception for the specified virtual address */ void arm_cpu_do_unaligned_access(CPUState *cs, vaddr vaddr, MMUAccessType access_type, - int mmu_idx, uintptr_t retaddr); + int mmu_idx, uintptr_t retaddr) QEMU_NORETURN; /* arm_cpu_do_transaction_failed: handle a memory system error response * (eg "no device/memory present at address") by raising an external abort diff --git a/target/microblaze/cpu.h b/target/microblaze/cpu.h index e4bba8a755..620c3742e1 100644 --- a/target/microblaze/cpu.h +++ b/target/microblaze/cpu.h @@ -359,7 +359,7 @@ void mb_cpu_do_interrupt(CPUState *cs); bool mb_cpu_exec_interrupt(CPUState *cs, int int_req); void mb_cpu_do_unaligned_access(CPUState *cs, vaddr vaddr, MMUAccessType access_type, - int mmu_idx, uintptr_t retaddr); + int mmu_idx, uintptr_t retaddr) QEMU_NORETURN; void mb_cpu_dump_state(CPUState *cpu, FILE *f, int flags); hwaddr mb_cpu_get_phys_page_attrs_debug(CPUState *cpu, vaddr addr, MemTxAttrs *attrs); diff --git a/target/mips/tcg/tcg-internal.h b/target/mips/tcg/tcg-internal.h index 81b14eb219..7ac1e578d1 100644 --- a/target/mips/tcg/tcg-internal.h +++ b/target/mips/tcg/tcg-internal.h @@ -24,8 +24,8 @@ bool mips_cpu_tlb_fill(CPUState *cs, vaddr address, int size, MMUAccessType access_type, int mmu_idx, bool probe, uintptr_t retaddr); void mips_cpu_do_unaligned_access(CPUState *cpu, vaddr addr, - MMUAccessType access_type, - int mmu_idx, uintptr_t retaddr); + MMUAccessType access_type, int mmu_idx, + uintptr_t retaddr) QEMU_NORETURN; const char *mips_exception_name(int32_t exception); diff --git a/target/nios2/cpu.h b/target/nios2/cpu.h index 2ab82fdc71..27227b1e88 100644 --- a/target/nios2/cpu.h +++ b/target/nios2/cpu.h @@ -198,8 +198,8 @@ void dump_mmu(CPUNios2State *env); void nios2_cpu_dump_state(CPUState *cpu, FILE *f, int flags); hwaddr nios2_cpu_get_phys_page_debug(CPUState *cpu, vaddr addr); void nios2_cpu_do_unaligned_access(CPUState *cpu, vaddr addr, - MMUAccessType access_type, - int mmu_idx, uintptr_t retaddr); + MMUAccessType access_type, int mmu_idx, + uintptr_t retaddr) QEMU_NORETURN; void do_nios2_semihosting(CPUNios2State *env); diff --git a/target/ppc/internal.h b/target/ppc/internal.h index f1fd3c8d04..d2163bf5a2 100644 --- a/target/ppc/internal.h +++ b/target/ppc/internal.h @@ -213,8 +213,8 @@ void helper_compute_fprf_float128(CPUPPCState *env, float128 arg); /* Raise a data fault alignment exception for the specified virtual address */ void ppc_cpu_do_unaligned_access(CPUState *cs, vaddr addr, - MMUAccessType access_type, - int mmu_idx, uintptr_t retaddr); + MMUAccessType access_type, int mmu_idx, + uintptr_t retaddr) QEMU_NORETURN; /* translate.c */ diff --git a/target/riscv/cpu.h b/target/riscv/cpu.h index bf1c899c00..a5b0047bfd 100644 --- a/target/riscv/cpu.h +++ b/target/riscv/cpu.h @@ -345,7 +345,7 @@ int riscv_cpu_mmu_index(CPURISCVState *env, bool ifetch); hwaddr riscv_cpu_get_phys_page_debug(CPUState *cpu, vaddr addr); void riscv_cpu_do_unaligned_access(CPUState *cs, vaddr addr, MMUAccessType access_type, int mmu_idx, - uintptr_t retaddr); + uintptr_t retaddr) QEMU_NORETURN; bool riscv_cpu_tlb_fill(CPUState *cs, vaddr address, int size, MMUAccessType access_type, int mmu_idx, bool probe, uintptr_t retaddr); diff --git a/target/s390x/s390x-internal.h b/target/s390x/s390x-internal.h index 5506f185e8..96133ac2b6 100644 --- a/target/s390x/s390x-internal.h +++ b/target/s390x/s390x-internal.h @@ -274,8 +274,8 @@ bool s390_cpu_tlb_fill(CPUState *cs, vaddr address, int size, MMUAccessType access_type, int mmu_idx, bool probe, uintptr_t retaddr); void s390x_cpu_do_unaligned_access(CPUState *cs, vaddr addr, - MMUAccessType access_type, - int mmu_idx, uintptr_t retaddr); + MMUAccessType access_type, int mmu_idx, + uintptr_t retaddr) QEMU_NORETURN; /* fpu_helper.c */ diff --git a/target/sh4/cpu.h b/target/sh4/cpu.h index 01c4344082..a9191951f8 100644 --- a/target/sh4/cpu.h +++ b/target/sh4/cpu.h @@ -211,8 +211,8 @@ hwaddr superh_cpu_get_phys_page_debug(CPUState *cpu, vaddr addr); int superh_cpu_gdb_read_register(CPUState *cpu, GByteArray *buf, int reg); int superh_cpu_gdb_write_register(CPUState *cpu, uint8_t *buf, int reg); void superh_cpu_do_unaligned_access(CPUState *cpu, vaddr addr, - MMUAccessType access_type, - int mmu_idx, uintptr_t retaddr); + MMUAccessType access_type, int mmu_idx, + uintptr_t retaddr) QEMU_NORETURN; void sh4_translate_init(void); int cpu_sh4_signal_handler(int host_signum, void *pinfo, diff --git a/target/xtensa/cpu.h b/target/xtensa/cpu.h index 2345cb59c7..aa9c77d719 100644 --- a/target/xtensa/cpu.h +++ b/target/xtensa/cpu.h @@ -579,8 +579,8 @@ void xtensa_count_regs(const XtensaConfig *config, int xtensa_cpu_gdb_read_register(CPUState *cpu, GByteArray *buf, int reg); int xtensa_cpu_gdb_write_register(CPUState *cpu, uint8_t *buf, int reg); void xtensa_cpu_do_unaligned_access(CPUState *cpu, vaddr addr, - MMUAccessType access_type, - int mmu_idx, uintptr_t retaddr); + MMUAccessType access_type, int mmu_idx, + uintptr_t retaddr) QEMU_NORETURN; #define cpu_signal_handler cpu_xtensa_signal_handler #define cpu_list xtensa_cpu_list diff --git a/target/hppa/cpu.c b/target/hppa/cpu.c index 2eace4ee12..c2c56e7635 100644 --- a/target/hppa/cpu.c +++ b/target/hppa/cpu.c @@ -72,9 +72,10 @@ static void hppa_cpu_disas_set_info(CPUState *cs, disassemble_info *info) } #ifndef CONFIG_USER_ONLY -static void hppa_cpu_do_unaligned_access(CPUState *cs, vaddr addr, - MMUAccessType access_type, - int mmu_idx, uintptr_t retaddr) +static void QEMU_NORETURN +hppa_cpu_do_unaligned_access(CPUState *cs, vaddr addr, + MMUAccessType access_type, int mmu_idx, + uintptr_t retaddr) { HPPACPU *cpu = HPPA_CPU(cs); CPUHPPAState *env = &cpu->env; -- 2.25.1