diff mbox series

[v3,19/66] target/sparc: Implement do_unaligned_access for user-only

Message ID 20210818191920.390759-20-richard.henderson@linaro.org
State New
Headers show
Series Unaligned access for user-only | expand

Commit Message

Richard Henderson Aug. 18, 2021, 7:18 p.m. UTC 
Acked-by: 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(-)

-- 
2.25.1
diff mbox series

Patch

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 */