diff --git a/linux-user/s390x/cpu_loop.c b/linux-user/s390x/cpu_loop.c index 69b69981f6..d089c8417e 100644 --- a/linux-user/s390x/cpu_loop.c +++ b/linux-user/s390x/cpu_loop.c @@ -24,8 +24,6 @@ #include "cpu_loop-common.h" #include "signal-common.h" -/* s390x masks the fault address it reports in si_addr for SIGSEGV and SIGBUS */ -#define S390X_FAIL_ADDR_MASK -4096LL static int get_pgm_data_si_code(int dxc_code) { @@ -111,12 +109,13 @@ void cpu_loop(CPUS390XState *env) n = TARGET_ILL_ILLOPC; goto do_signal_pc; case PGM_PROTECTION: + force_sig_fault(TARGET_SIGSEGV, TARGET_SEGV_ACCERR, + env->__excp_addr); + break; case PGM_ADDRESSING: - sig = TARGET_SIGSEGV; - /* XXX: check env->error_code */ - n = TARGET_SEGV_MAPERR; - addr = env->__excp_addr & S390X_FAIL_ADDR_MASK; - goto do_signal; + force_sig_fault(TARGET_SIGSEGV, TARGET_SEGV_MAPERR, + env->__excp_addr); + break; case PGM_EXECUTE: case PGM_SPECIFICATION: case PGM_SPECIAL_OP: diff --git a/target/s390x/cpu.c b/target/s390x/cpu.c index 7b7b05f1d3..593dda75c4 100644 --- a/target/s390x/cpu.c +++ b/target/s390x/cpu.c @@ -266,9 +266,11 @@ 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, +#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..163aa4f94a 100644 --- a/target/s390x/s390x-internal.h +++ b/target/s390x/s390x-internal.h @@ -270,13 +270,20 @@ 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); -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; +#ifdef CONFIG_USER_ONLY +void s390_cpu_record_sigsegv(CPUState *cs, vaddr address, + MMUAccessType access_type, + bool maperr, 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); +#endif + /* fpu_helper.c */ uint32_t set_cc_nz_f32(float32 v); diff --git a/target/s390x/tcg/excp_helper.c b/target/s390x/tcg/excp_helper.c index 3d6662a53c..b923d080fc 100644 --- a/target/s390x/tcg/excp_helper.c +++ b/target/s390x/tcg/excp_helper.c @@ -89,16 +89,20 @@ 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); }