diff options
Diffstat (limited to 'target')
62 files changed, 396 insertions, 423 deletions
diff --git a/target/alpha/cpu.c b/target/alpha/cpu.c index 93e16a2ffb..a8990d401b 100644 --- a/target/alpha/cpu.c +++ b/target/alpha/cpu.c @@ -218,9 +218,12 @@ static const struct SysemuCPUOps alpha_sysemu_ops = { static const struct TCGCPUOps alpha_tcg_ops = { .initialize = alpha_translate_init, - .tlb_fill = alpha_cpu_tlb_fill, -#ifndef CONFIG_USER_ONLY +#ifdef CONFIG_USER_ONLY + .record_sigsegv = alpha_cpu_record_sigsegv, + .record_sigbus = alpha_cpu_record_sigbus, +#else + .tlb_fill = alpha_cpu_tlb_fill, .cpu_exec_interrupt = alpha_cpu_exec_interrupt, .do_interrupt = alpha_cpu_do_interrupt, .do_transaction_failed = alpha_cpu_do_transaction_failed, diff --git a/target/alpha/cpu.h b/target/alpha/cpu.h index 772828cc26..afd975c878 100644 --- a/target/alpha/cpu.h +++ b/target/alpha/cpu.h @@ -282,9 +282,6 @@ void alpha_cpu_dump_state(CPUState *cs, FILE *f, int flags); 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) QEMU_NORETURN; #define cpu_list alpha_cpu_list @@ -439,9 +436,6 @@ void alpha_translate_init(void); #define CPU_RESOLVING_TYPE TYPE_ALPHA_CPU void alpha_cpu_list(void); -bool alpha_cpu_tlb_fill(CPUState *cs, vaddr address, int size, - MMUAccessType access_type, int mmu_idx, - bool probe, uintptr_t retaddr); void QEMU_NORETURN dynamic_excp(CPUAlphaState *, uintptr_t, int, int); void QEMU_NORETURN arith_excp(CPUAlphaState *, uintptr_t, int, uint64_t); @@ -449,7 +443,20 @@ uint64_t cpu_alpha_load_fpcr (CPUAlphaState *env); void cpu_alpha_store_fpcr (CPUAlphaState *env, uint64_t val); uint64_t cpu_alpha_load_gr(CPUAlphaState *env, unsigned reg); void cpu_alpha_store_gr(CPUAlphaState *env, unsigned reg, uint64_t val); -#ifndef CONFIG_USER_ONLY + +#ifdef CONFIG_USER_ONLY +void alpha_cpu_record_sigsegv(CPUState *cs, vaddr address, + MMUAccessType access_type, + bool maperr, uintptr_t retaddr); +void alpha_cpu_record_sigbus(CPUState *cs, vaddr address, + MMUAccessType access_type, uintptr_t retaddr); +#else +bool alpha_cpu_tlb_fill(CPUState *cs, vaddr address, int size, + MMUAccessType access_type, int mmu_idx, + bool probe, uintptr_t retaddr); +void alpha_cpu_do_unaligned_access(CPUState *cpu, vaddr addr, + MMUAccessType access_type, int mmu_idx, + uintptr_t retaddr) QEMU_NORETURN; void alpha_cpu_do_transaction_failed(CPUState *cs, hwaddr physaddr, vaddr addr, unsigned size, MMUAccessType access_type, diff --git a/target/alpha/helper.c b/target/alpha/helper.c index 81550d9e2f..b7e7f73b15 100644 --- a/target/alpha/helper.c +++ b/target/alpha/helper.c @@ -120,15 +120,44 @@ void cpu_alpha_store_gr(CPUAlphaState *env, unsigned reg, uint64_t val) } #if defined(CONFIG_USER_ONLY) -bool alpha_cpu_tlb_fill(CPUState *cs, vaddr address, int size, - MMUAccessType access_type, int mmu_idx, - bool probe, uintptr_t retaddr) +void alpha_cpu_record_sigsegv(CPUState *cs, vaddr address, + MMUAccessType access_type, + bool maperr, uintptr_t retaddr) { AlphaCPU *cpu = ALPHA_CPU(cs); + target_ulong mmcsr, cause; + + /* Assuming !maperr, infer the missing protection. */ + switch (access_type) { + case MMU_DATA_LOAD: + mmcsr = MM_K_FOR; + cause = 0; + break; + case MMU_DATA_STORE: + mmcsr = MM_K_FOW; + cause = 1; + break; + case MMU_INST_FETCH: + mmcsr = MM_K_FOE; + cause = -1; + break; + default: + g_assert_not_reached(); + } + if (maperr) { + if (address < BIT_ULL(TARGET_VIRT_ADDR_SPACE_BITS - 1)) { + /* Userspace address, therefore page not mapped. */ + mmcsr = MM_K_TNV; + } else { + /* Kernel or invalid address. */ + mmcsr = MM_K_ACV; + } + } - cs->exception_index = EXCP_MMFAULT; + /* Record the arguments that PALcode would give to the kernel. */ cpu->env.trap_arg0 = address; - cpu_loop_exit_restore(cs, retaddr); + cpu->env.trap_arg1 = mmcsr; + cpu->env.trap_arg2 = cause; } #else /* Returns the OSF/1 entMM failure indication, or -1 on success. */ diff --git a/target/alpha/mem_helper.c b/target/alpha/mem_helper.c index 75e72bc337..47283a0612 100644 --- a/target/alpha/mem_helper.c +++ b/target/alpha/mem_helper.c @@ -23,18 +23,12 @@ #include "exec/exec-all.h" #include "exec/cpu_ldst.h" -/* Softmmu support */ -#ifndef CONFIG_USER_ONLY -void alpha_cpu_do_unaligned_access(CPUState *cs, vaddr addr, - MMUAccessType access_type, - int mmu_idx, uintptr_t retaddr) +static void do_unaligned_access(CPUAlphaState *env, vaddr addr, uintptr_t retaddr) { - AlphaCPU *cpu = ALPHA_CPU(cs); - CPUAlphaState *env = &cpu->env; uint64_t pc; uint32_t insn; - cpu_restore_state(cs, retaddr, true); + cpu_restore_state(env_cpu(env), retaddr, true); pc = env->pc; insn = cpu_ldl_code(env, pc); @@ -42,6 +36,26 @@ void alpha_cpu_do_unaligned_access(CPUState *cs, vaddr addr, env->trap_arg0 = addr; env->trap_arg1 = insn >> 26; /* opcode */ env->trap_arg2 = (insn >> 21) & 31; /* dest regno */ +} + +#ifdef CONFIG_USER_ONLY +void alpha_cpu_record_sigbus(CPUState *cs, vaddr addr, + MMUAccessType access_type, uintptr_t retaddr) +{ + AlphaCPU *cpu = ALPHA_CPU(cs); + CPUAlphaState *env = &cpu->env; + + do_unaligned_access(env, addr, retaddr); +} +#else +void alpha_cpu_do_unaligned_access(CPUState *cs, vaddr addr, + MMUAccessType access_type, + int mmu_idx, uintptr_t retaddr) +{ + AlphaCPU *cpu = ALPHA_CPU(cs); + CPUAlphaState *env = &cpu->env; + + do_unaligned_access(env, addr, retaddr); cs->exception_index = EXCP_UNALIGN; env->error_code = 0; cpu_loop_exit(cs); diff --git a/target/arm/cpu.c b/target/arm/cpu.c index 641a8c2d3d..a211804fd3 100644 --- a/target/arm/cpu.c +++ b/target/arm/cpu.c @@ -2031,10 +2031,13 @@ static const struct SysemuCPUOps arm_sysemu_ops = { static const struct TCGCPUOps arm_tcg_ops = { .initialize = arm_translate_init, .synchronize_from_tb = arm_cpu_synchronize_from_tb, - .tlb_fill = arm_cpu_tlb_fill, .debug_excp_handler = arm_debug_excp_handler, -#if !defined(CONFIG_USER_ONLY) +#ifdef CONFIG_USER_ONLY + .record_sigsegv = arm_cpu_record_sigsegv, + .record_sigbus = arm_cpu_record_sigbus, +#else + .tlb_fill = arm_cpu_tlb_fill, .cpu_exec_interrupt = arm_cpu_exec_interrupt, .do_interrupt = arm_cpu_do_interrupt, .do_transaction_failed = arm_cpu_do_transaction_failed, diff --git a/target/arm/cpu_tcg.c b/target/arm/cpu_tcg.c index 0d5adccf1a..13d0e9b195 100644 --- a/target/arm/cpu_tcg.c +++ b/target/arm/cpu_tcg.c @@ -898,10 +898,13 @@ static void pxa270c5_initfn(Object *obj) static const struct TCGCPUOps arm_v7m_tcg_ops = { .initialize = arm_translate_init, .synchronize_from_tb = arm_cpu_synchronize_from_tb, - .tlb_fill = arm_cpu_tlb_fill, .debug_excp_handler = arm_debug_excp_handler, -#if !defined(CONFIG_USER_ONLY) +#ifdef CONFIG_USER_ONLY + .record_sigsegv = arm_cpu_record_sigsegv, + .record_sigbus = arm_cpu_record_sigbus, +#else + .tlb_fill = arm_cpu_tlb_fill, .cpu_exec_interrupt = arm_v7m_cpu_exec_interrupt, .do_interrupt = arm_v7m_cpu_do_interrupt, .do_transaction_failed = arm_cpu_do_transaction_failed, diff --git a/target/arm/internals.h b/target/arm/internals.h index 3612107ab2..89f7610ebc 100644 --- a/target/arm/internals.h +++ b/target/arm/internals.h @@ -544,9 +544,17 @@ static inline bool arm_extabort_type(MemTxResult result) return result != MEMTX_DECODE_ERROR; } +#ifdef CONFIG_USER_ONLY +void arm_cpu_record_sigsegv(CPUState *cpu, vaddr addr, + MMUAccessType access_type, + bool maperr, uintptr_t ra); +void arm_cpu_record_sigbus(CPUState *cpu, vaddr addr, + MMUAccessType access_type, uintptr_t ra); +#else bool arm_cpu_tlb_fill(CPUState *cs, vaddr address, int size, MMUAccessType access_type, int mmu_idx, bool probe, uintptr_t retaddr); +#endif static inline int arm_to_core_mmu_idx(ARMMMUIdx mmu_idx) { diff --git a/target/arm/mte_helper.c b/target/arm/mte_helper.c index 724175210b..e09b7e46a2 100644 --- a/target/arm/mte_helper.c +++ b/target/arm/mte_helper.c @@ -84,10 +84,8 @@ static uint8_t *allocation_tag_mem(CPUARMState *env, int ptr_mmu_idx, uintptr_t index; if (!(flags & (ptr_access == MMU_DATA_STORE ? PAGE_WRITE_ORG : PAGE_READ))) { - /* SIGSEGV */ - arm_cpu_tlb_fill(env_cpu(env), ptr, ptr_size, ptr_access, - ptr_mmu_idx, false, ra); - g_assert_not_reached(); + cpu_loop_exit_sigsegv(env_cpu(env), ptr, ptr_access, + !(flags & PAGE_VALID), ra); } /* Require both MAP_ANON and PROT_MTE for the page. */ diff --git a/target/arm/sve_helper.c b/target/arm/sve_helper.c index dab5f1d1cd..07be55b7e1 100644 --- a/target/arm/sve_helper.c +++ b/target/arm/sve_helper.c @@ -6118,7 +6118,7 @@ DO_LDN_2(4, dd, MO_64) * linux-user/ in its get_user/put_user macros. * * TODO: Construct some helpers, written in assembly, that interact with - * handle_cpu_signal to produce memory ops which can properly report errors + * host_signal_handler to produce memory ops which can properly report errors * without racing. */ diff --git a/target/arm/tlb_helper.c b/target/arm/tlb_helper.c index 3107f9823e..12a934e924 100644 --- a/target/arm/tlb_helper.c +++ b/target/arm/tlb_helper.c @@ -147,28 +147,12 @@ void arm_cpu_do_transaction_failed(CPUState *cs, hwaddr physaddr, arm_deliver_fault(cpu, addr, access_type, mmu_idx, &fi); } -#endif /* !defined(CONFIG_USER_ONLY) */ - bool arm_cpu_tlb_fill(CPUState *cs, vaddr address, int size, MMUAccessType access_type, int mmu_idx, bool probe, uintptr_t retaddr) { ARMCPU *cpu = ARM_CPU(cs); ARMMMUFaultInfo fi = {}; - -#ifdef CONFIG_USER_ONLY - int flags = page_get_flags(useronly_clean_ptr(address)); - if (flags & PAGE_VALID) { - fi.type = ARMFault_Permission; - } else { - fi.type = ARMFault_Translation; - } - fi.level = 3; - - /* now we have a real cpu fault */ - cpu_restore_state(cs, retaddr, true); - arm_deliver_fault(cpu, address, access_type, mmu_idx, &fi); -#else hwaddr phys_addr; target_ulong page_size; int prot, ret; @@ -210,5 +194,29 @@ bool arm_cpu_tlb_fill(CPUState *cs, vaddr address, int size, cpu_restore_state(cs, retaddr, true); arm_deliver_fault(cpu, address, access_type, mmu_idx, &fi); } -#endif } +#else +void arm_cpu_record_sigsegv(CPUState *cs, vaddr addr, + MMUAccessType access_type, + bool maperr, uintptr_t ra) +{ + ARMMMUFaultInfo fi = { + .type = maperr ? ARMFault_Translation : ARMFault_Permission, + .level = 3, + }; + ARMCPU *cpu = ARM_CPU(cs); + + /* + * We report both ESR and FAR to signal handlers. + * For now, it's easiest to deliver the fault normally. + */ + cpu_restore_state(cs, ra, true); + arm_deliver_fault(cpu, addr, access_type, MMU_USER_IDX, &fi); +} + +void arm_cpu_record_sigbus(CPUState *cs, vaddr addr, + MMUAccessType access_type, uintptr_t ra) +{ + arm_cpu_do_unaligned_access(cs, addr, access_type, MMU_USER_IDX, ra); +} +#endif /* !defined(CONFIG_USER_ONLY) */ diff --git a/target/cris/cpu.c b/target/cris/cpu.c index c2e7483f5b..ed6c781342 100644 --- a/target/cris/cpu.c +++ b/target/cris/cpu.c @@ -205,9 +205,9 @@ static const struct SysemuCPUOps cris_sysemu_ops = { static const struct TCGCPUOps crisv10_tcg_ops = { .initialize = cris_initialize_crisv10_tcg, - .tlb_fill = cris_cpu_tlb_fill, #ifndef CONFIG_USER_ONLY + .tlb_fill = cris_cpu_tlb_fill, .cpu_exec_interrupt = cris_cpu_exec_interrupt, .do_interrupt = crisv10_cpu_do_interrupt, #endif /* !CONFIG_USER_ONLY */ @@ -215,9 +215,9 @@ static const struct TCGCPUOps crisv10_tcg_ops = { static const struct TCGCPUOps crisv32_tcg_ops = { .initialize = cris_initialize_tcg, - .tlb_fill = cris_cpu_tlb_fill, #ifndef CONFIG_USER_ONLY + .tlb_fill = cris_cpu_tlb_fill, .cpu_exec_interrupt = cris_cpu_exec_interrupt, .do_interrupt = cris_cpu_do_interrupt, #endif /* !CONFIG_USER_ONLY */ diff --git a/target/cris/cpu.h b/target/cris/cpu.h index 6603565f83..b445b194ea 100644 --- a/target/cris/cpu.h +++ b/target/cris/cpu.h @@ -189,6 +189,10 @@ extern const VMStateDescription vmstate_cris_cpu; void cris_cpu_do_interrupt(CPUState *cpu); void crisv10_cpu_do_interrupt(CPUState *cpu); bool cris_cpu_exec_interrupt(CPUState *cpu, int int_req); + +bool cris_cpu_tlb_fill(CPUState *cs, vaddr address, int size, + MMUAccessType access_type, int mmu_idx, + bool probe, uintptr_t retaddr); #endif void cris_cpu_dump_state(CPUState *cs, FILE *f, int flags); @@ -251,10 +255,6 @@ static inline int cpu_mmu_index (CPUCRISState *env, bool ifetch) return !!(env->pregs[PR_CCS] & U_FLAG); } -bool cris_cpu_tlb_fill(CPUState *cs, vaddr address, int size, - MMUAccessType access_type, int mmu_idx, - bool probe, uintptr_t retaddr); - /* Support function regs. */ #define SFR_RW_GC_CFG 0][0 #define SFR_RW_MM_CFG env->pregs[PR_SRS]][0 diff --git a/target/cris/helper.c b/target/cris/helper.c index 36926faf32..a0d6ecdcd3 100644 --- a/target/cris/helper.c +++ b/target/cris/helper.c @@ -39,22 +39,6 @@ #define D_LOG(...) do { } while (0) #endif -#if defined(CONFIG_USER_ONLY) - -bool cris_cpu_tlb_fill(CPUState *cs, vaddr address, int size, - MMUAccessType access_type, int mmu_idx, - bool probe, uintptr_t retaddr) -{ - CRISCPU *cpu = CRIS_CPU(cs); - - cs->exception_index = 0xaa; - cpu->env.pregs[PR_EDA] = address; - cpu_loop_exit_restore(cs, retaddr); -} - -#else /* !CONFIG_USER_ONLY */ - - static void cris_shift_ccs(CPUCRISState *env) { uint32_t ccs; @@ -304,5 +288,3 @@ bool cris_cpu_exec_interrupt(CPUState *cs, int interrupt_request) return ret; } - -#endif /* !CONFIG_USER_ONLY */ diff --git a/target/cris/meson.build b/target/cris/meson.build index 67c3793c85..c1e326d950 100644 --- a/target/cris/meson.build +++ b/target/cris/meson.build @@ -2,13 +2,16 @@ cris_ss = ss.source_set() cris_ss.add(files( 'cpu.c', 'gdbstub.c', - 'helper.c', 'op_helper.c', 'translate.c', )) cris_softmmu_ss = ss.source_set() -cris_softmmu_ss.add(files('mmu.c', 'machine.c')) +cris_softmmu_ss.add(files( + 'helper.c', + 'machine.c', + 'mmu.c', +)) target_arch += {'cris': cris_ss} target_softmmu_arch += {'cris': cris_softmmu_ss} diff --git a/target/hexagon/cpu.c b/target/hexagon/cpu.c index 3338365c16..160a46a3d5 100644 --- a/target/hexagon/cpu.c +++ b/target/hexagon/cpu.c @@ -245,34 +245,11 @@ static void hexagon_cpu_init(Object *obj) qdev_property_add_static(DEVICE(obj), &hexagon_lldb_stack_adjust_property); } -static bool hexagon_tlb_fill(CPUState *cs, vaddr address, int size, - MMUAccessType access_type, int mmu_idx, - bool probe, uintptr_t retaddr) -{ -#ifdef CONFIG_USER_ONLY - switch (access_type) { - case MMU_INST_FETCH: - cs->exception_index = HEX_EXCP_FETCH_NO_UPAGE; - break; - case MMU_DATA_LOAD: - cs->exception_index = HEX_EXCP_PRIV_NO_UREAD; - break; - case MMU_DATA_STORE: - cs->exception_index = HEX_EXCP_PRIV_NO_UWRITE; - break; - } - cpu_loop_exit_restore(cs, retaddr); -#else -#error System mode not implemented for Hexagon -#endif -} - #include "hw/core/tcg-cpu-ops.h" static const struct TCGCPUOps hexagon_tcg_ops = { .initialize = hexagon_translate_init, .synchronize_from_tb = hexagon_cpu_synchronize_from_tb, - .tlb_fill = hexagon_tlb_fill, }; static void hexagon_cpu_class_init(ObjectClass *c, void *data) diff --git a/target/hppa/cpu.c b/target/hppa/cpu.c index 89cba9d7a2..23eb254228 100644 --- a/target/hppa/cpu.c +++ b/target/hppa/cpu.c @@ -145,9 +145,9 @@ static const struct SysemuCPUOps hppa_sysemu_ops = { static const struct TCGCPUOps hppa_tcg_ops = { .initialize = hppa_translate_init, .synchronize_from_tb = hppa_cpu_synchronize_from_tb, - .tlb_fill = hppa_cpu_tlb_fill, #ifndef CONFIG_USER_ONLY + .tlb_fill = hppa_cpu_tlb_fill, .cpu_exec_interrupt = hppa_cpu_exec_interrupt, .do_interrupt = hppa_cpu_do_interrupt, .do_unaligned_access = hppa_cpu_do_unaligned_access, diff --git a/target/hppa/cpu.h b/target/hppa/cpu.h index d3cb7a279f..294fd7297f 100644 --- a/target/hppa/cpu.h +++ b/target/hppa/cpu.h @@ -323,10 +323,10 @@ hwaddr hppa_cpu_get_phys_page_debug(CPUState *cs, vaddr addr); int hppa_cpu_gdb_read_register(CPUState *cpu, GByteArray *buf, int reg); int hppa_cpu_gdb_write_register(CPUState *cpu, uint8_t *buf, int reg); void hppa_cpu_dump_state(CPUState *cs, FILE *f, int); +#ifndef CONFIG_USER_ONLY bool hppa_cpu_tlb_fill(CPUState *cs, vaddr address, int size, MMUAccessType access_type, int mmu_idx, bool probe, uintptr_t retaddr); -#ifndef CONFIG_USER_ONLY void hppa_cpu_do_interrupt(CPUState *cpu); bool hppa_cpu_exec_interrupt(CPUState *cpu, int int_req); int hppa_get_physical_address(CPUHPPAState *env, vaddr addr, int mmu_idx, diff --git a/target/hppa/mem_helper.c b/target/hppa/mem_helper.c index afc5b56c3e..bf07445cd1 100644 --- a/target/hppa/mem_helper.c +++ b/target/hppa/mem_helper.c @@ -24,20 +24,6 @@ #include "hw/core/cpu.h" #include "trace.h" -#ifdef CONFIG_USER_ONLY -bool hppa_cpu_tlb_fill(CPUState *cs, vaddr address, int size, - MMUAccessType access_type, int mmu_idx, - bool probe, uintptr_t retaddr) -{ - HPPACPU *cpu = HPPA_CPU(cs); - - /* ??? Test between data page fault and data memory protection trap, - which would affect si_code. */ - cs->exception_index = EXCP_DMP; - cpu->env.cr[CR_IOR] = address; - cpu_loop_exit_restore(cs, retaddr); -} -#else static hppa_tlb_entry *hppa_find_tlb(CPUHPPAState *env, vaddr addr) { int i; @@ -392,4 +378,3 @@ int hppa_artype_for_page(CPUHPPAState *env, target_ulong vaddr) hppa_tlb_entry *ent = hppa_find_tlb(env, vaddr); return ent ? ent->ar_type : -1; } -#endif /* CONFIG_USER_ONLY */ diff --git a/target/hppa/meson.build b/target/hppa/meson.build index 8a7ff82efc..021e42a2d0 100644 --- a/target/hppa/meson.build +++ b/target/hppa/meson.build @@ -7,13 +7,15 @@ hppa_ss.add(files( 'gdbstub.c', 'helper.c', 'int_helper.c', - 'mem_helper.c', 'op_helper.c', 'translate.c', )) hppa_softmmu_ss = ss.source_set() -hppa_softmmu_ss.add(files('machine.c')) +hppa_softmmu_ss.add(files( + 'machine.c', + 'mem_helper.c', +)) target_arch += {'hppa': hppa_ss} target_softmmu_arch += {'hppa': hppa_softmmu_ss} diff --git a/target/i386/tcg/helper-tcg.h b/target/i386/tcg/helper-tcg.h index 60ca09e95e..0a4401e917 100644 --- a/target/i386/tcg/helper-tcg.h +++ b/target/i386/tcg/helper-tcg.h @@ -43,9 +43,15 @@ bool x86_cpu_exec_interrupt(CPUState *cpu, int int_req); #endif /* helper.c */ +#ifdef CONFIG_USER_ONLY +void x86_cpu_record_sigsegv(CPUState *cs, vaddr addr, + MMUAccessType access_type, + bool maperr, uintptr_t ra); +#else bool x86_cpu_tlb_fill(CPUState *cs, vaddr address, int size, MMUAccessType access_type, int mmu_idx, bool probe, uintptr_t retaddr); +#endif void breakpoint_handler(CPUState *cs); diff --git a/target/i386/tcg/tcg-cpu.c b/target/i386/tcg/tcg-cpu.c index 3ecfae34cb..6fdfdf9598 100644 --- a/target/i386/tcg/tcg-cpu.c +++ b/target/i386/tcg/tcg-cpu.c @@ -72,10 +72,11 @@ static const struct TCGCPUOps x86_tcg_ops = { .synchronize_from_tb = x86_cpu_synchronize_from_tb, .cpu_exec_enter = x86_cpu_exec_enter, .cpu_exec_exit = x86_cpu_exec_exit, - .tlb_fill = x86_cpu_tlb_fill, #ifdef CONFIG_USER_ONLY .fake_user_interrupt = x86_cpu_do_interrupt, + .record_sigsegv = x86_cpu_record_sigsegv, #else + .tlb_fill = x86_cpu_tlb_fill, .do_interrupt = x86_cpu_do_interrupt, .cpu_exec_interrupt = x86_cpu_exec_interrupt, .debug_excp_handler = breakpoint_handler, diff --git a/target/i386/tcg/user/excp_helper.c b/target/i386/tcg/user/excp_helper.c index a89b5228fd..cd507e2a1b 100644 --- a/target/i386/tcg/user/excp_helper.c +++ b/target/i386/tcg/user/excp_helper.c @@ -22,18 +22,29 @@ #include "exec/exec-all.h" #include "tcg/helper-tcg.h" -bool x86_cpu_tlb_fill(CPUState *cs, vaddr addr, int size, - MMUAccessType access_type, int mmu_idx, - bool probe, uintptr_t retaddr) +void x86_cpu_record_sigsegv(CPUState *cs, vaddr addr, + MMUAccessType access_type, + bool maperr, uintptr_t ra) { X86CPU *cpu = X86_CPU(cs); CPUX86State *env = &cpu->env; + /* + * The error_code that hw reports as part of the exception frame + * is copied to linux sigcontext.err. The exception_index is + * copied to linux sigcontext.trapno. Short of inventing a new + * place to store the trapno, we cannot let our caller raise the + * signal and set exception_index to EXCP_INTERRUPT. + */ env->cr[2] = addr; - env->error_code = (access_type == MMU_DATA_STORE) << PG_ERROR_W_BIT; - env->error_code |= PG_ERROR_U_MASK; + env->error_code = ((access_type == MMU_DATA_STORE) << PG_ERROR_W_BIT) + | (maperr ? 0 : PG_ERROR_P_MASK) + | PG_ERROR_U_MASK; cs->exception_index = EXCP0E_PAGE; + + /* Disable do_interrupt_user. */ env->exception_is_int = 0; env->exception_next_eip = -1; - cpu_loop_exit_restore(cs, retaddr); + + cpu_loop_exit_restore(cs, ra); } diff --git a/target/m68k/cpu.c b/target/m68k/cpu.c index 66d22d1189..c7aeb7da9c 100644 --- a/target/m68k/cpu.c +++ b/target/m68k/cpu.c @@ -515,9 +515,9 @@ static const struct SysemuCPUOps m68k_sysemu_ops = { static const struct TCGCPUOps m68k_tcg_ops = { .initialize = m68k_tcg_init, - .tlb_fill = m68k_cpu_tlb_fill, #ifndef CONFIG_USER_ONLY + .tlb_fill = m68k_cpu_tlb_fill, .cpu_exec_interrupt = m68k_cpu_exec_interrupt, .do_interrupt = m68k_cpu_do_interrupt, .do_transaction_failed = m68k_cpu_transaction_failed, diff --git a/target/m68k/helper.c b/target/m68k/helper.c index 137a3e1a3d..5728e48585 100644 --- a/target/m68k/helper.c +++ b/target/m68k/helper.c @@ -978,16 +978,12 @@ void m68k_set_irq_level(M68kCPU *cpu, int level, uint8_t vector) } } -#endif - bool m68k_cpu_tlb_fill(CPUState *cs, vaddr address, int size, MMUAccessType qemu_access_type, int mmu_idx, bool probe, uintptr_t retaddr) { M68kCPU *cpu = M68K_CPU(cs); CPUM68KState *env = &cpu->env; - -#ifndef CONFIG_USER_ONLY hwaddr physical; int prot; int access_type; @@ -1051,12 +1047,12 @@ bool m68k_cpu_tlb_fill(CPUState *cs, vaddr address, int size, if (!(access_type & ACCESS_STORE)) { env->mmu.ssw |= M68K_RW_040; } -#endif cs->exception_index = EXCP_ACCESS; env->mmu.ar = address; cpu_loop_exit_restore(cs, retaddr); } +#endif /* !CONFIG_USER_ONLY */ uint32_t HELPER(bitrev)(uint32_t x) { diff --git a/target/microblaze/cpu.c b/target/microblaze/cpu.c index 15db277925..b9c888b87e 100644 --- a/target/microblaze/cpu.c +++ b/target/microblaze/cpu.c @@ -365,9 +365,9 @@ static const struct SysemuCPUOps mb_sysemu_ops = { static const struct TCGCPUOps mb_tcg_ops = { .initialize = mb_tcg_init, .synchronize_from_tb = mb_cpu_synchronize_from_tb, - .tlb_fill = mb_cpu_tlb_fill, #ifndef CONFIG_USER_ONLY + .tlb_fill = mb_cpu_tlb_fill, .cpu_exec_interrupt = mb_cpu_exec_interrupt, .do_interrupt = mb_cpu_do_interrupt, .do_transaction_failed = mb_cpu_transaction_failed, diff --git a/target/microblaze/cpu.h b/target/microblaze/cpu.h index b7a848bbae..e9cd0b88de 100644 --- a/target/microblaze/cpu.h +++ b/target/microblaze/cpu.h @@ -394,10 +394,6 @@ void mb_tcg_init(void); #define MMU_USER_IDX 2 /* See NB_MMU_MODES further up the file. */ -bool mb_cpu_tlb_fill(CPUState *cs, vaddr address, int size, - MMUAccessType access_type, int mmu_idx, - bool probe, uintptr_t retaddr); - typedef CPUMBState CPUArchState; typedef MicroBlazeCPU ArchCPU; @@ -415,6 +411,10 @@ static inline void cpu_get_tb_cpu_state(CPUMBState *env, target_ulong *pc, } #if !defined(CONFIG_USER_ONLY) +bool mb_cpu_tlb_fill(CPUState *cs, vaddr address, int size, + MMUAccessType access_type, int mmu_idx, + bool probe, uintptr_t retaddr); + void mb_cpu_transaction_failed(CPUState *cs, hwaddr physaddr, vaddr addr, unsigned size, MMUAccessType access_type, int mmu_idx, MemTxAttrs attrs, diff --git a/target/microblaze/helper.c b/target/microblaze/helper.c index dd2aecd1d5..a607fe68e5 100644 --- a/target/microblaze/helper.c +++ b/target/microblaze/helper.c @@ -24,18 +24,7 @@ #include "qemu/host-utils.h" #include "exec/log.h" -#if defined(CONFIG_USER_ONLY) - -bool mb_cpu_tlb_fill(CPUState *cs, vaddr address, int size, - MMUAccessType access_type, int mmu_idx, - bool probe, uintptr_t retaddr) -{ - cs->exception_index = 0xaa; - cpu_loop_exit_restore(cs, retaddr); -} - -#else /* !CONFIG_USER_ONLY */ - +#ifndef CONFIG_USER_ONLY static bool mb_cpu_access_is_secure(MicroBlazeCPU *cpu, MMUAccessType access_type) { diff --git a/target/microblaze/translate.c b/target/microblaze/translate.c index 437bbed6d6..2561b904b9 100644 --- a/target/microblaze/translate.c +++ b/target/microblaze/translate.c @@ -722,6 +722,7 @@ static TCGv compute_ldst_addr_ea(DisasContext *dc, int ra, int rb) } #endif +#ifndef CONFIG_USER_ONLY static void record_unaligned_ess(DisasContext *dc, int rd, MemOp size, bool store) { @@ -734,6 +735,7 @@ static void record_unaligned_ess(DisasContext *dc, int rd, tcg_set_insn_start_param(dc->insn_start, 1, iflags); } +#endif static bool do_load(DisasContext *dc, int rd, TCGv addr, MemOp mop, int mem_index, bool rev) @@ -755,12 +757,19 @@ static bool do_load(DisasContext *dc, int rd, TCGv addr, MemOp mop, } } + /* + * For system mode, enforce alignment if the cpu configuration + * requires it. For user-mode, the Linux kernel will have fixed up + * any unaligned access, so emulate that by *not* setting MO_ALIGN. + */ +#ifndef CONFIG_USER_ONLY if (size > MO_8 && (dc->tb_flags & MSR_EE) && dc->cfg->unaligned_exceptions) { record_unaligned_ess(dc, rd, size, false); mop |= MO_ALIGN; } +#endif tcg_gen_qemu_ld_i32(reg_for_write(dc, rd), addr, mem_index, mop); @@ -901,12 +910,19 @@ static bool do_store(DisasContext *dc, int rd, TCGv addr, MemOp mop, } } + /* + * For system mode, enforce alignment if the cpu configuration + * requires it. For user-mode, the Linux kernel will have fixed up + * any unaligned access, so emulate that by *not* setting MO_ALIGN. + */ +#ifndef CONFIG_USER_ONLY if (size > MO_8 && (dc->tb_flags & MSR_EE) && dc->cfg->unaligned_exceptions) { record_unaligned_ess(dc, rd, size, true); mop |= MO_ALIGN; } +#endif tcg_gen_qemu_st_i32(reg_for_read(dc, rd), addr, mem_index, mop); diff --git a/target/mips/cpu.c b/target/mips/cpu.c index 00e0c55d0e..4aae23934b 100644 --- a/target/mips/cpu.c +++ b/target/mips/cpu.c @@ -539,9 +539,9 @@ static const struct SysemuCPUOps mips_sysemu_ops = { static const struct TCGCPUOps mips_tcg_ops = { .initialize = mips_tcg_init, .synchronize_from_tb = mips_cpu_synchronize_from_tb, - .tlb_fill = mips_cpu_tlb_fill, #if !defined(CONFIG_USER_ONLY) + .tlb_fill = mips_cpu_tlb_fill, .cpu_exec_interrupt = mips_cpu_exec_interrupt, .do_interrupt = mips_cpu_do_interrupt, .do_transaction_failed = mips_cpu_do_transaction_failed, diff --git a/target/mips/tcg/meson.build b/target/mips/tcg/meson.build index 8f6f7508b6..98003779ae 100644 --- a/target/mips/tcg/meson.build +++ b/target/mips/tcg/meson.build @@ -28,9 +28,6 @@ mips_ss.add(when: 'TARGET_MIPS64', if_true: files( 'mxu_translate.c', )) -if have_user - subdir('user') -endif if have_system subdir('sysemu') endif diff --git a/target/mips/tcg/tcg-internal.h b/target/mips/tcg/tcg-internal.h index bad3deb611..466768aec4 100644 --- a/target/mips/tcg/tcg-internal.h +++ b/target/mips/tcg/tcg-internal.h @@ -18,9 +18,6 @@ void mips_tcg_init(void); void mips_cpu_synchronize_from_tb(CPUState *cs, const TranslationBlock *tb); -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) QEMU_NORETURN; @@ -60,6 +57,10 @@ void mips_cpu_do_transaction_failed(CPUState *cs, hwaddr physaddr, MemTxResult response, uintptr_t retaddr); void cpu_mips_tlb_flush(CPUMIPSState *env); +bool mips_cpu_tlb_fill(CPUState *cs, vaddr address, int size, + MMUAccessType access_type, int mmu_idx, + bool probe, uintptr_t retaddr); + #endif /* !CONFIG_USER_ONLY */ #endif diff --git a/target/mips/tcg/user/meson.build b/target/mips/tcg/user/meson.build deleted file mode 100644 index 79badcd321..0000000000 --- a/target/mips/tcg/user/meson.build +++ /dev/null @@ -1,3 +0,0 @@ -mips_user_ss.add(files( - 'tlb_helper.c', -)) diff --git a/target/mips/tcg/user/tlb_helper.c b/target/mips/tcg/user/tlb_helper.c deleted file mode 100644 index 210c6d529e..0000000000 --- a/target/mips/tcg/user/tlb_helper.c +++ /dev/null @@ -1,59 +0,0 @@ -/* - * MIPS TLB (Translation lookaside buffer) helpers. - * - * Copyright (c) 2004-2005 Jocelyn Mayer - * - * This library is free software; you can redistribute it and/or - * modify it under the terms of the GNU Lesser General Public - * License as published by the Free Software Foundation; either - * version 2.1 of the License, or (at your option) any later version. - * - * This library is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * Lesser General Public License for more details. - * - * You should have received a copy of the GNU Lesser General Public - * License along with this library; if not, see <http://www.gnu.org/licenses/>. - */ -#include "qemu/osdep.h" - -#include "cpu.h" -#include "exec/exec-all.h" -#include "internal.h" - -static void raise_mmu_exception(CPUMIPSState *env, target_ulong address, - MMUAccessType access_type) -{ - CPUState *cs = env_cpu(env); - - env->error_code = 0; - if (access_type == MMU_INST_FETCH) { - env->error_code |= EXCP_INST_NOTAVAIL; - } - - /* Reference to kernel address from user mode or supervisor mode */ - /* Reference to supervisor address from user mode */ - if (access_type == MMU_DATA_STORE) { - cs->exception_index = EXCP_AdES; - } else { - cs->exception_index = EXCP_AdEL; - } - - /* Raise exception */ - if (!(env->hflags & MIPS_HFLAG_DM)) { - env->CP0_BadVAddr = address; - } -} - -bool mips_cpu_tlb_fill(CPUState *cs, vaddr address, int size, - MMUAccessType access_type, int mmu_idx, - bool probe, uintptr_t retaddr) -{ - MIPSCPU *cpu = MIPS_CPU(cs); - CPUMIPSState *env = &cpu->env; - - /* data access */ - raise_mmu_exception(env, address, access_type); - do_raise_exception_err(env, cs->exception_index, env->error_code, retaddr); -} diff --git a/target/nios2/cpu.c b/target/nios2/cpu.c index 58ecd27d75..4cade61e93 100644 --- a/target/nios2/cpu.c +++ b/target/nios2/cpu.c @@ -216,9 +216,11 @@ static const struct SysemuCPUOps nios2_sysemu_ops = { static const struct TCGCPUOps nios2_tcg_ops = { .initialize = nios2_tcg_init, - .tlb_fill = nios2_cpu_tlb_fill, -#ifndef CONFIG_USER_ONLY +#ifdef CONFIG_USER_ONLY + .record_sigsegv = nios2_cpu_record_sigsegv, +#else + .tlb_fill = nios2_cpu_tlb_fill, .cpu_exec_interrupt = nios2_cpu_exec_interrupt, .do_interrupt = nios2_cpu_do_interrupt, .do_unaligned_access = nios2_cpu_do_unaligned_access, diff --git a/target/nios2/cpu.h b/target/nios2/cpu.h index a80587338a..1a69ed7a49 100644 --- a/target/nios2/cpu.h +++ b/target/nios2/cpu.h @@ -218,9 +218,15 @@ static inline int cpu_mmu_index(CPUNios2State *env, bool ifetch) MMU_SUPERVISOR_IDX; } +#ifdef CONFIG_USER_ONLY +void nios2_cpu_record_sigsegv(CPUState *cpu, vaddr addr, + MMUAccessType access_type, + bool maperr, uintptr_t ra); +#else bool nios2_cpu_tlb_fill(CPUState *cs, vaddr address, int size, MMUAccessType access_type, int mmu_idx, bool probe, uintptr_t retaddr); +#endif static inline int cpu_interrupts_enabled(CPUNios2State *env) { diff --git a/target/nios2/helper.c b/target/nios2/helper.c index 53be8398e9..e5c98650e1 100644 --- a/target/nios2/helper.c +++ b/target/nios2/helper.c @@ -38,10 +38,11 @@ void nios2_cpu_do_interrupt(CPUState *cs) env->regs[R_EA] = env->regs[R_PC] + 4; } -bool nios2_cpu_tlb_fill(CPUState *cs, vaddr address, int size, - MMUAccessType access_type, int mmu_idx, - bool probe, uintptr_t retaddr) +void nios2_cpu_record_sigsegv(CPUState *cs, vaddr addr, + MMUAccessType access_type, + bool maperr, uintptr_t retaddr) { + /* FIXME: Disentangle kuser page from linux-user sigsegv handling. */ cs->exception_index = 0xaa; cpu_loop_exit_restore(cs, retaddr); } diff --git a/target/openrisc/cpu.c b/target/openrisc/cpu.c index 27cb04152f..dfbafc5236 100644 --- a/target/openrisc/cpu.c +++ b/target/openrisc/cpu.c @@ -186,9 +186,9 @@ static const struct SysemuCPUOps openrisc_sysemu_ops = { static const struct TCGCPUOps openrisc_tcg_ops = { .initialize = openrisc_translate_init, - .tlb_fill = openrisc_cpu_tlb_fill, #ifndef CONFIG_USER_ONLY + .tlb_fill = openrisc_cpu_tlb_fill, .cpu_exec_interrupt = openrisc_cpu_exec_interrupt, .do_interrupt = openrisc_cpu_do_interrupt, #endif /* !CONFIG_USER_ONLY */ diff --git a/target/openrisc/cpu.h b/target/openrisc/cpu.h index 187a4a114e..ee069b080c 100644 --- a/target/openrisc/cpu.h +++ b/target/openrisc/cpu.h @@ -317,14 +317,15 @@ hwaddr openrisc_cpu_get_phys_page_debug(CPUState *cpu, vaddr addr); int openrisc_cpu_gdb_read_register(CPUState *cpu, GByteArray *buf, int reg); int openrisc_cpu_gdb_write_register(CPUState *cpu, uint8_t *buf, int reg); void openrisc_translate_init(void); -bool openrisc_cpu_tlb_fill(CPUState *cs, vaddr address, int size, - MMUAccessType access_type, int mmu_idx, - bool probe, uintptr_t retaddr); int print_insn_or1k(bfd_vma addr, disassemble_info *info); #define cpu_list cpu_openrisc_list #ifndef CONFIG_USER_ONLY +bool openrisc_cpu_tlb_fill(CPUState *cs, vaddr address, int size, + MMUAccessType access_type, int mmu_idx, + bool probe, uintptr_t retaddr); + extern const VMStateDescription vmstate_openrisc_cpu; void openrisc_cpu_do_interrupt(CPUState *cpu); diff --git a/target/openrisc/meson.build b/target/openrisc/meson.build index e445dec4a0..84322086ec 100644 --- a/target/openrisc/meson.build +++ b/target/openrisc/meson.build @@ -10,7 +10,6 @@ openrisc_ss.add(files( 'fpu_helper.c', 'gdbstub.c', 'interrupt_helper.c', - 'mmu.c', 'sys_helper.c', 'translate.c', )) @@ -19,6 +18,7 @@ openrisc_softmmu_ss = ss.source_set() openrisc_softmmu_ss.add(files( 'interrupt.c', 'machine.c', + 'mmu.c', )) target_arch += {'openrisc': openrisc_ss} diff --git a/target/openrisc/mmu.c b/target/openrisc/mmu.c index 94df8c7bef..e561ef245b 100644 --- a/target/openrisc/mmu.c +++ b/target/openrisc/mmu.c @@ -23,11 +23,8 @@ #include "exec/exec-all.h" #include "exec/gdbstub.h" #include "qemu/host-utils.h" -#ifndef CONFIG_USER_ONLY #include "hw/loader.h" -#endif -#ifndef CONFIG_USER_ONLY static inline void get_phys_nommu(hwaddr *phys_addr, int *prot, target_ulong address) { @@ -94,7 +91,6 @@ static int get_phys_mmu(OpenRISCCPU *cpu, hwaddr *phys_addr, int *prot, return need & PAGE_EXEC ? EXCP_ITLBMISS : EXCP_DTLBMISS; } } -#endif static void raise_mmu_exception(OpenRISCCPU *cpu, target_ulong address, int exception) @@ -112,8 +108,6 @@ bool openrisc_cpu_tlb_fill(CPUState *cs, vaddr addr, int size, { OpenRISCCPU *cpu = OPENRISC_CPU(cs); int excp = EXCP_DPF; - -#ifndef CONFIG_USER_ONLY int prot; hwaddr phys_addr; @@ -138,13 +132,11 @@ bool openrisc_cpu_tlb_fill(CPUState *cs, vaddr addr, int size, if (probe) { return false; } -#endif raise_mmu_exception(cpu, addr, excp); cpu_loop_exit_restore(cs, retaddr); } -#ifndef CONFIG_USER_ONLY hwaddr openrisc_cpu_get_phys_page_debug(CPUState *cs, vaddr addr) { OpenRISCCPU *cpu = OPENRISC_CPU(cs); @@ -177,4 +169,3 @@ hwaddr openrisc_cpu_get_phys_page_debug(CPUState *cs, vaddr addr) return phys_addr; } } -#endif diff --git a/target/ppc/cpu.h b/target/ppc/cpu.h index 0472ec9154..e946da5f3a 100644 --- a/target/ppc/cpu.h +++ b/target/ppc/cpu.h @@ -1302,9 +1302,6 @@ extern const VMStateDescription vmstate_ppc_cpu; /*****************************************************************************/ void ppc_translate_init(void); -bool ppc_cpu_tlb_fill(CPUState *cs, vaddr address, int size, - MMUAccessType access_type, int mmu_idx, - bool probe, uintptr_t retaddr); #if !defined(CONFIG_USER_ONLY) void ppc_store_sdr1(CPUPPCState *env, target_ulong value); diff --git a/target/ppc/cpu_init.c b/target/ppc/cpu_init.c index 65545ba9ca..1c7a7b4b38 100644 --- a/target/ppc/cpu_init.c +++ b/target/ppc/cpu_init.c @@ -9014,9 +9014,11 @@ static const struct SysemuCPUOps ppc_sysemu_ops = { static const struct TCGCPUOps ppc_tcg_ops = { .initialize = ppc_translate_init, - .tlb_fill = ppc_cpu_tlb_fill, -#ifndef CONFIG_USER_ONLY +#ifdef CONFIG_USER_ONLY + .record_sigsegv = ppc_cpu_record_sigsegv, +#else + .tlb_fill = ppc_cpu_tlb_fill, .cpu_exec_interrupt = ppc_cpu_exec_interrupt, .do_interrupt = ppc_cpu_do_interrupt, .cpu_exec_enter = ppc_cpu_exec_enter, diff --git a/target/ppc/excp_helper.c b/target/ppc/excp_helper.c index b7d1767920..17607adbe4 100644 --- a/target/ppc/excp_helper.c +++ b/target/ppc/excp_helper.c @@ -454,13 +454,15 @@ static inline void powerpc_excp(PowerPCCPU *cpu, int excp_model, int excp) break; } case POWERPC_EXCP_ALIGN: /* Alignment exception */ - /* Get rS/rD and rA from faulting opcode */ /* - * Note: the opcode fields will not be set properly for a - * direct store load/store, but nobody cares as nobody - * actually uses direct store segments. + * Get rS/rD and rA from faulting opcode. + * Note: We will only invoke ALIGN for atomic operations, + * so all instructions are X-form. */ - env->spr[SPR_DSISR] |= (env->error_code & 0x03FF0000) >> 16; + { + uint32_t insn = cpu_ldl_code(env, env->nip); + env->spr[SPR_DSISR] |= (insn & 0x03FF0000) >> 16; + } break; case POWERPC_EXCP_PROGRAM: /* Program exception */ switch (env->error_code & ~0xF) { @@ -1452,24 +1454,31 @@ void helper_book3s_msgsndp(CPUPPCState *env, target_ulong rb) book3s_msgsnd_common(pir, PPC_INTERRUPT_DOORBELL); } -#endif -#endif /* CONFIG_TCG */ -#endif +#endif /* TARGET_PPC64 */ -#ifdef CONFIG_TCG void ppc_cpu_do_unaligned_access(CPUState *cs, vaddr vaddr, MMUAccessType access_type, int mmu_idx, uintptr_t retaddr) { CPUPPCState *env = cs->env_ptr; - uint32_t insn; - /* Restore state and reload the insn we executed, for filling in DSISR. */ - cpu_restore_state(cs, retaddr, true); - insn = cpu_ldl_code(env, env->nip); + switch (env->mmu_model) { + case POWERPC_MMU_SOFT_4xx: + case POWERPC_MMU_SOFT_4xx_Z: + env->spr[SPR_40x_DEAR] = vaddr; + break; + case POWERPC_MMU_BOOKE: + case POWERPC_MMU_BOOKE206: + env->spr[SPR_BOOKE_DEAR] = vaddr; + break; + default: + env->spr[SPR_DAR] = vaddr; + break; + } cs->exception_index = POWERPC_EXCP_ALIGN; - env->error_code = insn & 0x03FF0000; - cpu_loop_exit(cs); + env->error_code = 0; + cpu_loop_exit_restore(cs, retaddr); } -#endif +#endif /* CONFIG_TCG */ +#endif /* !CONFIG_USER_ONLY */ diff --git a/target/ppc/internal.h b/target/ppc/internal.h index 55284369f5..6aa9484f34 100644 --- a/target/ppc/internal.h +++ b/target/ppc/internal.h @@ -211,11 +211,6 @@ void helper_compute_fprf_float16(CPUPPCState *env, float16 arg); void helper_compute_fprf_float32(CPUPPCState *env, float32 arg); 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) QEMU_NORETURN; - /* translate.c */ int ppc_fixup_cpu(PowerPCCPU *cpu); @@ -283,5 +278,17 @@ static inline void pte_invalidate(target_ulong *pte0) #define PTE_PTEM_MASK 0x7FFFFFBF #define PTE_CHECK_MASK (TARGET_PAGE_MASK | 0x7B) +#ifdef CONFIG_USER_ONLY +void ppc_cpu_record_sigsegv(CPUState *cs, vaddr addr, + MMUAccessType access_type, + bool maperr, uintptr_t ra); +#else +bool ppc_cpu_tlb_fill(CPUState *cs, vaddr address, int size, + MMUAccessType access_type, int mmu_idx, + bool probe, uintptr_t retaddr); +void ppc_cpu_do_unaligned_access(CPUState *cs, vaddr addr, + MMUAccessType access_type, int mmu_idx, + uintptr_t retaddr) QEMU_NORETURN; +#endif #endif /* PPC_INTERNAL_H */ diff --git a/target/ppc/user_only_helper.c b/target/ppc/user_only_helper.c index aa3f867596..7ff76f7a06 100644 --- a/target/ppc/user_only_helper.c +++ b/target/ppc/user_only_helper.c @@ -21,16 +21,23 @@ #include "qemu/osdep.h" #include "cpu.h" #include "exec/exec-all.h" +#include "internal.h" - -bool ppc_cpu_tlb_fill(CPUState *cs, vaddr address, int size, - MMUAccessType access_type, int mmu_idx, - bool probe, uintptr_t retaddr) +void ppc_cpu_record_sigsegv(CPUState *cs, vaddr address, + MMUAccessType access_type, + bool maperr, uintptr_t retaddr) { PowerPCCPU *cpu = POWERPC_CPU(cs); CPUPPCState *env = &cpu->env; int exception, error_code; + /* + * Both DSISR and the "trap number" (exception vector offset, + * looked up from exception_index) are present in the linux-user + * signal frame. + * FIXME: we don't actually populate the trap number properly. + * It would be easiest to fill in an env->trap value now. + */ if (access_type == MMU_INST_FETCH) { exception = POWERPC_EXCP_ISI; error_code = 0x40000000; diff --git a/target/riscv/cpu.c b/target/riscv/cpu.c index 7d53125dbc..f812998123 100644 --- a/target/riscv/cpu.c +++ b/target/riscv/cpu.c @@ -694,9 +694,9 @@ static const struct SysemuCPUOps riscv_sysemu_ops = { static const struct TCGCPUOps riscv_tcg_ops = { .initialize = riscv_translate_init, .synchronize_from_tb = riscv_cpu_synchronize_from_tb, - .tlb_fill = riscv_cpu_tlb_fill, #ifndef CONFIG_USER_ONLY + .tlb_fill = riscv_cpu_tlb_fill, .cpu_exec_interrupt = riscv_cpu_exec_interrupt, .do_interrupt = riscv_cpu_do_interrupt, .do_transaction_failed = riscv_cpu_do_transaction_failed, diff --git a/target/riscv/cpu_helper.c b/target/riscv/cpu_helper.c index f30ff672f8..9eeed38c7e 100644 --- a/target/riscv/cpu_helper.c +++ b/target/riscv/cpu_helper.c @@ -814,7 +814,6 @@ void riscv_cpu_do_unaligned_access(CPUState *cs, vaddr addr, riscv_cpu_two_stage_lookup(mmu_idx); riscv_raise_exception(env, cs->exception_index, retaddr); } -#endif /* !CONFIG_USER_ONLY */ bool riscv_cpu_tlb_fill(CPUState *cs, vaddr address, int size, MMUAccessType access_type, int mmu_idx, @@ -822,7 +821,6 @@ bool riscv_cpu_tlb_fill(CPUState *cs, vaddr address, int size, { RISCVCPU *cpu = RISCV_CPU(cs); CPURISCVState *env = &cpu->env; -#ifndef CONFIG_USER_ONLY vaddr im_address; hwaddr pa = 0; int prot, prot2, prot_pmp; @@ -954,25 +952,8 @@ bool riscv_cpu_tlb_fill(CPUState *cs, vaddr address, int size, } return true; - -#else - switch (access_type) { - case MMU_INST_FETCH: - cs->exception_index = RISCV_EXCP_INST_PAGE_FAULT; - break; - case MMU_DATA_LOAD: - cs->exception_index = RISCV_EXCP_LOAD_PAGE_FAULT; - break; - case MMU_DATA_STORE: - cs->exception_index = RISCV_EXCP_STORE_PAGE_FAULT; - break; - default: - g_assert_not_reached(); - } - env->badaddr = address; - cpu_loop_exit_restore(cs, retaddr); -#endif } +#endif /* !CONFIG_USER_ONLY */ /* * Handle Traps diff --git a/target/s390x/cpu.c b/target/s390x/cpu.c index 7b7b05f1d3..ccdbaf84d5 100644 --- a/target/s390x/cpu.c +++ b/target/s390x/cpu.c @@ -266,9 +266,12 @@ static void s390_cpu_reset_full(DeviceState *dev) static const struct TCGCPUOps s390_tcg_ops = { .initialize = s390x_translate_init, - .tlb_fill = s390_cpu_tlb_fill, -#if !defined(CONFIG_USER_ONLY) +#ifdef CONFIG_USER_ONLY + .record_sigsegv = s390_cpu_record_sigsegv, + .record_sigbus = s390_cpu_record_sigbus, +#else + .tlb_fill = s390_cpu_tlb_fill, .cpu_exec_interrupt = s390_cpu_exec_interrupt, .do_interrupt = s390_cpu_do_interrupt, .debug_excp_handler = s390x_cpu_debug_excp_handler, diff --git a/target/s390x/s390x-internal.h b/target/s390x/s390x-internal.h index 27d4a03ca1..1a178aed41 100644 --- a/target/s390x/s390x-internal.h +++ b/target/s390x/s390x-internal.h @@ -270,12 +270,21 @@ ObjectClass *s390_cpu_class_by_name(const char *name); void s390x_cpu_debug_excp_handler(CPUState *cs); void s390_cpu_do_interrupt(CPUState *cpu); bool s390_cpu_exec_interrupt(CPUState *cpu, int int_req); + +#ifdef CONFIG_USER_ONLY +void s390_cpu_record_sigsegv(CPUState *cs, vaddr address, + MMUAccessType access_type, + bool maperr, uintptr_t retaddr); +void s390_cpu_record_sigbus(CPUState *cs, vaddr address, + MMUAccessType access_type, uintptr_t retaddr); +#else 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) QEMU_NORETURN; +#endif /* fpu_helper.c */ diff --git a/target/s390x/tcg/excp_helper.c b/target/s390x/tcg/excp_helper.c index 3d6662a53c..4e7648f301 100644 --- a/target/s390x/tcg/excp_helper.c +++ b/target/s390x/tcg/excp_helper.c @@ -82,6 +82,19 @@ void HELPER(data_exception)(CPUS390XState *env, uint32_t dxc) tcg_s390_data_exception(env, dxc, GETPC()); } +/* + * Unaligned accesses are only diagnosed with MO_ALIGN. At the moment, + * this is only for the atomic operations, for which we want to raise a + * specification exception. + */ +static void QEMU_NORETURN do_unaligned_access(CPUState *cs, uintptr_t retaddr) +{ + S390CPU *cpu = S390_CPU(cs); + CPUS390XState *env = &cpu->env; + + tcg_s390_program_interrupt(env, PGM_SPECIFICATION, retaddr); +} + #if defined(CONFIG_USER_ONLY) void s390_cpu_do_interrupt(CPUState *cs) @@ -89,19 +102,29 @@ void s390_cpu_do_interrupt(CPUState *cs) cs->exception_index = -1; } -bool s390_cpu_tlb_fill(CPUState *cs, vaddr address, int size, - MMUAccessType access_type, int mmu_idx, - bool probe, uintptr_t retaddr) +void s390_cpu_record_sigsegv(CPUState *cs, vaddr address, + MMUAccessType access_type, + bool maperr, uintptr_t retaddr) { S390CPU *cpu = S390_CPU(cs); - trigger_pgm_exception(&cpu->env, PGM_ADDRESSING); - /* On real machines this value is dropped into LowMem. Since this - is userland, simply put this someplace that cpu_loop can find it. */ - cpu->env.__excp_addr = address; + trigger_pgm_exception(&cpu->env, maperr ? PGM_ADDRESSING : PGM_PROTECTION); + /* + * On real machines this value is dropped into LowMem. Since this + * is userland, simply put this someplace that cpu_loop can find it. + * S390 only gives the page of the fault, not the exact address. + * C.f. the construction of TEC in mmu_translate(). + */ + cpu->env.__excp_addr = address & TARGET_PAGE_MASK; cpu_loop_exit_restore(cs, retaddr); } +void s390_cpu_record_sigbus(CPUState *cs, vaddr address, + MMUAccessType access_type, uintptr_t retaddr) +{ + do_unaligned_access(cs, retaddr); +} + #else /* !CONFIG_USER_ONLY */ static inline uint64_t cpu_mmu_idx_to_asc(int mmu_idx) @@ -589,17 +612,11 @@ void s390x_cpu_debug_excp_handler(CPUState *cs) } } -/* Unaligned accesses are only diagnosed with MO_ALIGN. At the moment, - this is only for the atomic operations, for which we want to raise a - specification exception. */ void s390x_cpu_do_unaligned_access(CPUState *cs, vaddr addr, MMUAccessType access_type, int mmu_idx, uintptr_t retaddr) { - S390CPU *cpu = S390_CPU(cs); - CPUS390XState *env = &cpu->env; - - tcg_s390_program_interrupt(env, PGM_SPECIFICATION, retaddr); + do_unaligned_access(cs, retaddr); } static void QEMU_NORETURN monitor_event(CPUS390XState *env, diff --git a/target/s390x/tcg/mem_helper.c b/target/s390x/tcg/mem_helper.c index 17e3f83641..362a30d99e 100644 --- a/target/s390x/tcg/mem_helper.c +++ b/target/s390x/tcg/mem_helper.c @@ -141,20 +141,12 @@ static int s390_probe_access(CPUArchState *env, target_ulong addr, int size, MMUAccessType access_type, int mmu_idx, bool nonfault, void **phost, uintptr_t ra) { - int flags; - #if defined(CONFIG_USER_ONLY) - flags = page_get_flags(addr); - if (!(flags & (access_type == MMU_DATA_LOAD ? PAGE_READ : PAGE_WRITE_ORG))) { - env->__excp_addr = addr; - flags = (flags & PAGE_VALID) ? PGM_PROTECTION : PGM_ADDRESSING; - if (nonfault) { - return flags; - } - tcg_s390_program_interrupt(env, flags, ra); - } - *phost = g2h(env_cpu(env), addr); + return probe_access_flags(env, addr, access_type, mmu_idx, + nonfault, phost, ra); #else + int flags; + /* * For !CONFIG_USER_ONLY, we cannot rely on TLB_INVALID_MASK or haddr==NULL * to detect if there was an exception during tlb_fill(). @@ -173,8 +165,8 @@ static int s390_probe_access(CPUArchState *env, target_ulong addr, int size, (access_type == MMU_DATA_STORE ? BP_MEM_WRITE : BP_MEM_READ), ra); } -#endif return 0; +#endif } static int access_prepare_nf(S390Access *access, CPUS390XState *env, diff --git a/target/sh4/cpu.c b/target/sh4/cpu.c index 2047742d03..06b2691dc4 100644 --- a/target/sh4/cpu.c +++ b/target/sh4/cpu.c @@ -236,9 +236,9 @@ static const struct SysemuCPUOps sh4_sysemu_ops = { static const struct TCGCPUOps superh_tcg_ops = { .initialize = sh4_translate_init, .synchronize_from_tb = superh_cpu_synchronize_from_tb, - .tlb_fill = superh_cpu_tlb_fill, #ifndef CONFIG_USER_ONLY + .tlb_fill = superh_cpu_tlb_fill, .cpu_exec_interrupt = superh_cpu_exec_interrupt, .do_interrupt = superh_cpu_do_interrupt, .do_unaligned_access = superh_cpu_do_unaligned_access, diff --git a/target/sh4/cpu.h b/target/sh4/cpu.h index dc81406646..4cfb109f56 100644 --- a/target/sh4/cpu.h +++ b/target/sh4/cpu.h @@ -213,12 +213,12 @@ void superh_cpu_do_unaligned_access(CPUState *cpu, vaddr addr, uintptr_t retaddr) QEMU_NORETURN; void sh4_translate_init(void); +void sh4_cpu_list(void); + +#if !defined(CONFIG_USER_ONLY) bool superh_cpu_tlb_fill(CPUState *cs, vaddr address, int size, MMUAccessType access_type, int mmu_idx, bool probe, uintptr_t retaddr); - -void sh4_cpu_list(void); -#if !defined(CONFIG_USER_ONLY) void superh_cpu_do_interrupt(CPUState *cpu); bool superh_cpu_exec_interrupt(CPUState *cpu, int int_req); void cpu_sh4_invalidate_tlb(CPUSH4State *s); diff --git a/target/sh4/helper.c b/target/sh4/helper.c index 53cb9c3b63..6a620e36fc 100644 --- a/target/sh4/helper.c +++ b/target/sh4/helper.c @@ -796,8 +796,6 @@ bool superh_cpu_exec_interrupt(CPUState *cs, int interrupt_request) return false; } -#endif /* !CONFIG_USER_ONLY */ - bool superh_cpu_tlb_fill(CPUState *cs, vaddr address, int size, MMUAccessType access_type, int mmu_idx, bool probe, uintptr_t retaddr) @@ -806,11 +804,6 @@ bool superh_cpu_tlb_fill(CPUState *cs, vaddr address, int size, CPUSH4State *env = &cpu->env; int ret; -#ifdef CONFIG_USER_ONLY - ret = (access_type == MMU_DATA_STORE ? MMU_DTLB_VIOLATION_WRITE : - access_type == MMU_INST_FETCH ? MMU_ITLB_VIOLATION : - MMU_DTLB_VIOLATION_READ); -#else target_ulong physical; int prot; @@ -829,7 +822,6 @@ bool superh_cpu_tlb_fill(CPUState *cs, vaddr address, int size, if (ret != MMU_DTLB_MULTIPLE && ret != MMU_ITLB_MULTIPLE) { env->pteh = (env->pteh & PTEH_ASID_MASK) | (address & PTEH_VPN_MASK); } -#endif env->tea = address; switch (ret) { @@ -868,3 +860,4 @@ bool superh_cpu_tlb_fill(CPUState *cs, vaddr address, int size, } cpu_loop_exit_restore(cs, retaddr); } +#endif /* !CONFIG_USER_ONLY */ diff --git a/target/sh4/op_helper.c b/target/sh4/op_helper.c index c996dce7df..752669825f 100644 --- a/target/sh4/op_helper.c +++ b/target/sh4/op_helper.c @@ -29,6 +29,9 @@ void superh_cpu_do_unaligned_access(CPUState *cs, vaddr addr, MMUAccessType access_type, int mmu_idx, uintptr_t retaddr) { + CPUSH4State *env = cs->env_ptr; + + env->tea = addr; switch (access_type) { case MMU_INST_FETCH: case MMU_DATA_LOAD: @@ -37,6 +40,8 @@ void superh_cpu_do_unaligned_access(CPUState *cs, vaddr addr, case MMU_DATA_STORE: cs->exception_index = 0x100; break; + default: + g_assert_not_reached(); } cpu_loop_exit_restore(cs, retaddr); } diff --git a/target/sparc/cpu.c b/target/sparc/cpu.c index 21dd27796d..55268ed2a1 100644 --- a/target/sparc/cpu.c +++ b/target/sparc/cpu.c @@ -865,9 +865,9 @@ static const struct SysemuCPUOps sparc_sysemu_ops = { static const struct TCGCPUOps sparc_tcg_ops = { .initialize = sparc_tcg_init, .synchronize_from_tb = sparc_cpu_synchronize_from_tb, - .tlb_fill = sparc_cpu_tlb_fill, #ifndef CONFIG_USER_ONLY + .tlb_fill = sparc_cpu_tlb_fill, .cpu_exec_interrupt = sparc_cpu_exec_interrupt, .do_interrupt = sparc_cpu_do_interrupt, .do_transaction_failed = sparc_cpu_do_transaction_failed, diff --git a/target/sparc/ldst_helper.c b/target/sparc/ldst_helper.c index bbf3601cb1..a3e1cf9b6e 100644 --- a/target/sparc/ldst_helper.c +++ b/target/sparc/ldst_helper.c @@ -27,7 +27,6 @@ //#define DEBUG_MMU //#define DEBUG_MXCC -//#define DEBUG_UNALIGNED //#define DEBUG_UNASSIGNED //#define DEBUG_ASI //#define DEBUG_CACHE_CONTROL @@ -364,10 +363,6 @@ static void do_check_align(CPUSPARCState *env, target_ulong addr, uint32_t align, uintptr_t ra) { if (addr & align) { -#ifdef DEBUG_UNALIGNED - printf("Unaligned access to 0x" TARGET_FMT_lx " from 0x" TARGET_FMT_lx - "\n", addr, env->pc); -#endif cpu_raise_exception_ra(env, TT_UNALIGNED, ra); } } @@ -1958,20 +1953,3 @@ void sparc_cpu_do_transaction_failed(CPUState *cs, hwaddr physaddr, is_asi, size, retaddr); } #endif - -#if !defined(CONFIG_USER_ONLY) -void QEMU_NORETURN sparc_cpu_do_unaligned_access(CPUState *cs, vaddr addr, - MMUAccessType access_type, - int mmu_idx, - uintptr_t retaddr) -{ - SPARCCPU *cpu = SPARC_CPU(cs); - CPUSPARCState *env = &cpu->env; - -#ifdef DEBUG_UNALIGNED - printf("Unaligned access to 0x" TARGET_FMT_lx " from 0x" TARGET_FMT_lx - "\n", addr, env->pc); -#endif - cpu_raise_exception_ra(env, TT_UNALIGNED, retaddr); -} -#endif diff --git a/target/sparc/meson.build b/target/sparc/meson.build index a3638b9503..a801802ee2 100644 --- a/target/sparc/meson.build +++ b/target/sparc/meson.build @@ -6,7 +6,6 @@ sparc_ss.add(files( 'gdbstub.c', 'helper.c', 'ldst_helper.c', - 'mmu_helper.c', 'translate.c', 'win_helper.c', )) @@ -16,6 +15,7 @@ sparc_ss.add(when: 'TARGET_SPARC64', if_true: files('int64_helper.c', 'vis_helpe sparc_softmmu_ss = ss.source_set() sparc_softmmu_ss.add(files( 'machine.c', + 'mmu_helper.c', 'monitor.c', )) diff --git a/target/sparc/mmu_helper.c b/target/sparc/mmu_helper.c index a44473a1c7..f2668389b0 100644 --- a/target/sparc/mmu_helper.c +++ b/target/sparc/mmu_helper.c @@ -25,30 +25,6 @@ /* Sparc MMU emulation */ -#if defined(CONFIG_USER_ONLY) - -bool sparc_cpu_tlb_fill(CPUState *cs, vaddr address, int size, - MMUAccessType access_type, int mmu_idx, - bool probe, uintptr_t retaddr) -{ - SPARCCPU *cpu = SPARC_CPU(cs); - CPUSPARCState *env = &cpu->env; - - if (access_type == MMU_INST_FETCH) { - cs->exception_index = TT_TFAULT; - } else { - cs->exception_index = TT_DFAULT; -#ifdef TARGET_SPARC64 - env->dmmu.mmuregs[4] = address; -#else - env->mmuregs[4] = address; -#endif - } - cpu_loop_exit_restore(cs, retaddr); -} - -#else - #ifndef TARGET_SPARC64 /* * Sparc V8 Reference MMU (SRMMU) @@ -526,16 +502,60 @@ static inline int ultrasparc_tag_match(SparcTLBEntry *tlb, return 0; } +static uint64_t build_sfsr(CPUSPARCState *env, int mmu_idx, int rw) +{ + uint64_t sfsr = SFSR_VALID_BIT; + + switch (mmu_idx) { + case MMU_PHYS_IDX: + sfsr |= SFSR_CT_NOTRANS; + break; + case MMU_USER_IDX: + case MMU_KERNEL_IDX: + sfsr |= SFSR_CT_PRIMARY; + break; + case MMU_USER_SECONDARY_IDX: + case MMU_KERNEL_SECONDARY_IDX: + sfsr |= SFSR_CT_SECONDARY; + break; + case MMU_NUCLEUS_IDX: + sfsr |= SFSR_CT_NUCLEUS; + break; + default: + g_assert_not_reached(); + } + + if (rw == 1) { + sfsr |= SFSR_WRITE_BIT; + } else if (rw == 4) { + sfsr |= SFSR_NF_BIT; + } + + if (env->pstate & PS_PRIV) { + sfsr |= SFSR_PR_BIT; + } + + if (env->dmmu.sfsr & SFSR_VALID_BIT) { /* Fault status register */ + sfsr |= SFSR_OW_BIT; /* overflow (not read before another fault) */ + } + + /* FIXME: ASI field in SFSR must be set */ + + return sfsr; +} + static int get_physical_address_data(CPUSPARCState *env, hwaddr *physical, int *prot, MemTxAttrs *attrs, target_ulong address, int rw, int mmu_idx) { CPUState *cs = env_cpu(env); unsigned int i; + uint64_t sfsr; uint64_t context; - uint64_t sfsr = 0; bool is_user = false; + sfsr = build_sfsr(env, mmu_idx, rw); + switch (mmu_idx) { case MMU_PHYS_IDX: g_assert_not_reached(); @@ -544,29 +564,18 @@ static int get_physical_address_data(CPUSPARCState *env, hwaddr *physical, /* fallthru */ case MMU_KERNEL_IDX: context = env->dmmu.mmu_primary_context & 0x1fff; - sfsr |= SFSR_CT_PRIMARY; break; case MMU_USER_SECONDARY_IDX: is_user = true; /* fallthru */ case MMU_KERNEL_SECONDARY_IDX: context = env->dmmu.mmu_secondary_context & 0x1fff; - sfsr |= SFSR_CT_SECONDARY; break; - case MMU_NUCLEUS_IDX: - sfsr |= SFSR_CT_NUCLEUS; - /* FALLTHRU */ default: context = 0; break; } - if (rw == 1) { - sfsr |= SFSR_WRITE_BIT; - } else if (rw == 4) { - sfsr |= SFSR_NF_BIT; - } - for (i = 0; i < 64; i++) { /* ctx match, vaddr match, valid? */ if (ultrasparc_tag_match(&env->dtlb[i], address, context, physical)) { @@ -616,22 +625,9 @@ static int get_physical_address_data(CPUSPARCState *env, hwaddr *physical, return 0; } - if (env->dmmu.sfsr & SFSR_VALID_BIT) { /* Fault status register */ - sfsr |= SFSR_OW_BIT; /* overflow (not read before - another fault) */ - } - - if (env->pstate & PS_PRIV) { - sfsr |= SFSR_PR_BIT; - } - - /* FIXME: ASI field in SFSR must be set */ - env->dmmu.sfsr = sfsr | SFSR_VALID_BIT; - + env->dmmu.sfsr = sfsr; env->dmmu.sfar = address; /* Fault address register */ - env->dmmu.tag_access = (address & ~0x1fffULL) | context; - return 1; } } @@ -926,4 +922,23 @@ hwaddr sparc_cpu_get_phys_page_debug(CPUState *cs, vaddr addr) } return phys_addr; } + +#ifndef CONFIG_USER_ONLY +void QEMU_NORETURN sparc_cpu_do_unaligned_access(CPUState *cs, vaddr addr, + MMUAccessType access_type, + int mmu_idx, + uintptr_t retaddr) +{ + SPARCCPU *cpu = SPARC_CPU(cs); + CPUSPARCState *env = &cpu->env; + +#ifdef TARGET_SPARC64 + env->dmmu.sfsr = build_sfsr(env, mmu_idx, access_type); + env->dmmu.sfar = addr; +#else + env->mmuregs[4] = addr; #endif + + cpu_raise_exception_ra(env, TT_UNALIGNED, retaddr); +} +#endif /* !CONFIG_USER_ONLY */ diff --git a/target/xtensa/cpu.c b/target/xtensa/cpu.c index c1cbd03595..224f723236 100644 --- a/target/xtensa/cpu.c +++ b/target/xtensa/cpu.c @@ -192,10 +192,10 @@ static const struct SysemuCPUOps xtensa_sysemu_ops = { static const struct TCGCPUOps xtensa_tcg_ops = { .initialize = xtensa_translate_init, - .tlb_fill = xtensa_cpu_tlb_fill, .debug_excp_handler = xtensa_breakpoint_handler, #ifndef CONFIG_USER_ONLY + .tlb_fill = xtensa_cpu_tlb_fill, .cpu_exec_interrupt = xtensa_cpu_exec_interrupt, .do_interrupt = xtensa_cpu_do_interrupt, .do_transaction_failed = xtensa_cpu_do_transaction_failed, diff --git a/target/xtensa/cpu.h b/target/xtensa/cpu.h index f9a510ca46..02143f2f77 100644 --- a/target/xtensa/cpu.h +++ b/target/xtensa/cpu.h @@ -563,10 +563,10 @@ struct XtensaCPU { }; +#ifndef CONFIG_USER_ONLY bool xtensa_cpu_tlb_fill(CPUState *cs, vaddr address, int size, MMUAccessType access_type, int mmu_idx, bool probe, uintptr_t retaddr); -#ifndef CONFIG_USER_ONLY void xtensa_cpu_do_interrupt(CPUState *cpu); bool xtensa_cpu_exec_interrupt(CPUState *cpu, int interrupt_request); void xtensa_cpu_do_transaction_failed(CPUState *cs, hwaddr physaddr, vaddr addr, diff --git a/target/xtensa/helper.c b/target/xtensa/helper.c index f18ab383fd..29d216ec1b 100644 --- a/target/xtensa/helper.c +++ b/target/xtensa/helper.c @@ -242,27 +242,7 @@ void xtensa_cpu_list(void) } } -#ifdef CONFIG_USER_ONLY - -bool xtensa_cpu_tlb_fill(CPUState *cs, vaddr address, int size, - MMUAccessType access_type, int mmu_idx, - bool probe, uintptr_t retaddr) -{ - XtensaCPU *cpu = XTENSA_CPU(cs); - CPUXtensaState *env = &cpu->env; - - qemu_log_mask(CPU_LOG_INT, - "%s: rw = %d, address = 0x%08" VADDR_PRIx ", size = %d\n", - __func__, access_type, address, size); - env->sregs[EXCVADDR] = address; - env->sregs[EXCCAUSE] = (access_type == MMU_DATA_STORE ? - STORE_PROHIBITED_CAUSE : LOAD_PROHIBITED_CAUSE); - cs->exception_index = EXC_USER; - cpu_loop_exit_restore(cs, retaddr); -} - -#else /* !CONFIG_USER_ONLY */ - +#ifndef CONFIG_USER_ONLY void xtensa_cpu_do_unaligned_access(CPUState *cs, vaddr addr, MMUAccessType access_type, int mmu_idx, uintptr_t retaddr) |