| Message ID | 20210803041443.55452-19-richard.henderson@linaro.org (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | Unaligned access for user-only | expand |
On 03/08/2021 05:14, Richard Henderson wrote: > Cc: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk> > Signed-off-by: Richard Henderson <richard.henderson@linaro.org> > --- > linux-user/sparc/cpu_loop.c | 11 +++++++++++ > target/sparc/cpu.c | 2 +- > target/sparc/mmu_helper.c | 4 +++- > 3 files changed, 15 insertions(+), 2 deletions(-) > > diff --git a/linux-user/sparc/cpu_loop.c b/linux-user/sparc/cpu_loop.c > index 02532f198d..612e77807e 100644 > --- a/linux-user/sparc/cpu_loop.c > +++ b/linux-user/sparc/cpu_loop.c > @@ -272,6 +272,17 @@ void cpu_loop (CPUSPARCState *env) > queue_signal(env, info.si_signo, QEMU_SI_FAULT, &info); > } > break; > + case TT_UNALIGNED: > + info.si_signo = TARGET_SIGBUS; > + info.si_errno = 0; > + info.si_code = TARGET_BUS_ADRALN; > +#ifdef TARGET_SPARC64 > + info._sifields._sigfault._addr = env->dmmu.sfar; > +#else > + info._sifields._sigfault._addr = env->mmuregs[4]; > +#endif > + queue_signal(env, info.si_signo, QEMU_SI_FAULT, &info); > + break; > case EXCP_DEBUG: > info.si_signo = TARGET_SIGTRAP; > info.si_errno = 0; > diff --git a/target/sparc/cpu.c b/target/sparc/cpu.c > index da6b30ec74..d33d41e837 100644 > --- a/target/sparc/cpu.c > +++ b/target/sparc/cpu.c > @@ -865,11 +865,11 @@ static const struct TCGCPUOps sparc_tcg_ops = { > .synchronize_from_tb = sparc_cpu_synchronize_from_tb, > .cpu_exec_interrupt = sparc_cpu_exec_interrupt, > .tlb_fill = sparc_cpu_tlb_fill, > + .do_unaligned_access = sparc_cpu_do_unaligned_access, > > #ifndef CONFIG_USER_ONLY > .do_interrupt = sparc_cpu_do_interrupt, > .do_transaction_failed = sparc_cpu_do_transaction_failed, > - .do_unaligned_access = sparc_cpu_do_unaligned_access, > #endif /* !CONFIG_USER_ONLY */ > }; > #endif /* CONFIG_TCG */ > diff --git a/target/sparc/mmu_helper.c b/target/sparc/mmu_helper.c > index 2f260b0085..6b4aa32181 100644 > --- a/target/sparc/mmu_helper.c > +++ b/target/sparc/mmu_helper.c > @@ -946,6 +946,7 @@ hwaddr sparc_cpu_get_phys_page_debug(CPUState *cs, vaddr addr) > } > return phys_addr; > } > +#endif /* CONFIG_USER_ONLY */ > > void QEMU_NORETURN sparc_cpu_do_unaligned_access(CPUState *cs, vaddr addr, > MMUAccessType access_type, > @@ -956,7 +957,9 @@ void QEMU_NORETURN sparc_cpu_do_unaligned_access(CPUState *cs, vaddr addr, > CPUSPARCState *env = &cpu->env; > > #ifdef TARGET_SPARC64 > +#ifndef CONFIG_USER_ONLY > env->dmmu.sfsr = build_sfsr(env, mmu_idx, access_type); > +#endif > env->dmmu.sfar = addr; > #else > env->mmuregs[4] = addr; > @@ -964,4 +967,3 @@ void QEMU_NORETURN sparc_cpu_do_unaligned_access(CPUState *cs, vaddr addr, > > cpu_raise_exception_ra(env, TT_UNALIGNED, retaddr); > } > -#endif /* CONFIG_USER_ONLY */ I'm fairly weak on the user side, however the setting of the fault address looks okay to me so: Acked-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk> ATB, Mark.
diff --git a/linux-user/sparc/cpu_loop.c b/linux-user/sparc/cpu_loop.c index 02532f198d..612e77807e 100644 --- a/linux-user/sparc/cpu_loop.c +++ b/linux-user/sparc/cpu_loop.c @@ -272,6 +272,17 @@ void cpu_loop (CPUSPARCState *env) queue_signal(env, info.si_signo, QEMU_SI_FAULT, &info); } break; + case TT_UNALIGNED: + info.si_signo = TARGET_SIGBUS; + info.si_errno = 0; + info.si_code = TARGET_BUS_ADRALN; +#ifdef TARGET_SPARC64 + info._sifields._sigfault._addr = env->dmmu.sfar; +#else + info._sifields._sigfault._addr = env->mmuregs[4]; +#endif + queue_signal(env, info.si_signo, QEMU_SI_FAULT, &info); + break; case EXCP_DEBUG: info.si_signo = TARGET_SIGTRAP; info.si_errno = 0; diff --git a/target/sparc/cpu.c b/target/sparc/cpu.c index da6b30ec74..d33d41e837 100644 --- a/target/sparc/cpu.c +++ b/target/sparc/cpu.c @@ -865,11 +865,11 @@ static const struct TCGCPUOps sparc_tcg_ops = { .synchronize_from_tb = sparc_cpu_synchronize_from_tb, .cpu_exec_interrupt = sparc_cpu_exec_interrupt, .tlb_fill = sparc_cpu_tlb_fill, + .do_unaligned_access = sparc_cpu_do_unaligned_access, #ifndef CONFIG_USER_ONLY .do_interrupt = sparc_cpu_do_interrupt, .do_transaction_failed = sparc_cpu_do_transaction_failed, - .do_unaligned_access = sparc_cpu_do_unaligned_access, #endif /* !CONFIG_USER_ONLY */ }; #endif /* CONFIG_TCG */ diff --git a/target/sparc/mmu_helper.c b/target/sparc/mmu_helper.c index 2f260b0085..6b4aa32181 100644 --- a/target/sparc/mmu_helper.c +++ b/target/sparc/mmu_helper.c @@ -946,6 +946,7 @@ hwaddr sparc_cpu_get_phys_page_debug(CPUState *cs, vaddr addr) } return phys_addr; } +#endif /* CONFIG_USER_ONLY */ void QEMU_NORETURN sparc_cpu_do_unaligned_access(CPUState *cs, vaddr addr, MMUAccessType access_type, @@ -956,7 +957,9 @@ void QEMU_NORETURN sparc_cpu_do_unaligned_access(CPUState *cs, vaddr addr, CPUSPARCState *env = &cpu->env; #ifdef TARGET_SPARC64 +#ifndef CONFIG_USER_ONLY env->dmmu.sfsr = build_sfsr(env, mmu_idx, access_type); +#endif env->dmmu.sfar = addr; #else env->mmuregs[4] = addr; @@ -964,4 +967,3 @@ void QEMU_NORETURN sparc_cpu_do_unaligned_access(CPUState *cs, vaddr addr, cpu_raise_exception_ra(env, TT_UNALIGNED, retaddr); } -#endif /* CONFIG_USER_ONLY */
Cc: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> --- linux-user/sparc/cpu_loop.c | 11 +++++++++++ target/sparc/cpu.c | 2 +- target/sparc/mmu_helper.c | 4 +++- 3 files changed, 15 insertions(+), 2 deletions(-)