The fallback code in raise_sigsegv is sufficient for nios2.
Remove the code from cpu_loop that handled the unnamed 0xaa exception.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
---
 linux-user/nios2/cpu_loop.c | 10 ----------
 target/nios2/cpu.c          |  2 +-
 target/nios2/helper.c       |  8 --------
 3 files changed, 1 insertion(+), 19 deletions(-)

diff --git a/linux-user/nios2/cpu_loop.c b/linux-user/nios2/cpu_loop.c
index fd3f853ac2..c06fb6fabd 100644
--- a/linux-user/nios2/cpu_loop.c
+++ b/linux-user/nios2/cpu_loop.c
@@ -106,16 +106,6 @@ void cpu_loop(CPUNios2State *env)
             info.si_code = TARGET_TRAP_BRKPT;
             queue_signal(env, info.si_signo, QEMU_SI_FAULT, &info);
             break;
-        case 0xaa:
-            {
-                info.si_signo = TARGET_SIGSEGV;
-                info.si_errno = 0;
-                /* TODO: check env->error_code */
-                info.si_code = TARGET_SEGV_MAPERR;
-                info._sifields._sigfault._addr = env->regs[R_PC];
-                queue_signal(env, info.si_signo, QEMU_SI_FAULT, &info);
-            }
-            break;
         default:
             EXCP_DUMP(env, "\nqemu: unhandled CPU exception %#x - aborting\n",
                      trapnr);
diff --git a/target/nios2/cpu.c b/target/nios2/cpu.c
index 9938d7c291..b9f79b1bb2 100644
--- a/target/nios2/cpu.c
+++ b/target/nios2/cpu.c
@@ -222,10 +222,10 @@ 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
     .has_work = nios2_cpu_has_work,
+    .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/helper.c b/target/nios2/helper.c
index 53be8398e9..8b9b55ec67 100644
--- a/target/nios2/helper.c
+++ b/target/nios2/helper.c
@@ -38,14 +38,6 @@ 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)
-{
-    cs->exception_index = 0xaa;
-    cpu_loop_exit_restore(cs, retaddr);
-}
-
 #else /* !CONFIG_USER_ONLY */
 
 void nios2_cpu_do_interrupt(CPUState *cs)
-- 
2.25.1