[PULL 2/5] target/hppa: Restore unwind_breg before calculating ior

[deller@kernel.org]

From: Helge Deller <deller@gmx.de>

When calculating the IOR for the exception handlers, the current
unwind_breg value is needed on 64-bit hppa machines.
Restore that value by calling cpu_restore_state() earlier, which in turn
calls hppa_restore_state_to_opc() which restores the unwind_breg for the
current instruction.

Signed-off-by: Helge Deller <deller@gmx.de>
Fixes: 3824e0d643f3 ("target/hppa: Export function hppa_set_ior_and_isr()")
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
---
 target/hppa/cpu.c        | 3 ++-
 target/hppa/mem_helper.c | 3 ++-
 target/hppa/op_helper.c  | 3 ++-
 3 files changed, 6 insertions(+), 3 deletions(-)

diff --git a/target/hppa/cpu.c b/target/hppa/cpu.c
index afe73d4474..3831cb6db2 100644
--- a/target/hppa/cpu.c
+++ b/target/hppa/cpu.c
@@ -121,9 +121,10 @@ void hppa_cpu_do_unaligned_access(CPUState *cs, vaddr addr,
     CPUHPPAState *env = &cpu->env;
 
     cs->exception_index = EXCP_UNALIGN;
+    cpu_restore_state(cs, retaddr);
     hppa_set_ior_and_isr(env, addr, MMU_IDX_MMU_DISABLED(mmu_idx));
 
-    cpu_loop_exit_restore(cs, retaddr);
+    cpu_loop_exit(cs);
 }
 #endif /* CONFIG_USER_ONLY */
 
diff --git a/target/hppa/mem_helper.c b/target/hppa/mem_helper.c
index 66b8fa7d72..3fc895c1c2 100644
--- a/target/hppa/mem_helper.c
+++ b/target/hppa/mem_helper.c
@@ -348,9 +348,10 @@ raise_exception_with_ior(CPUHPPAState *env, int excp, uintptr_t retaddr,
     CPUState *cs = env_cpu(env);
 
     cs->exception_index = excp;
+    cpu_restore_state(cs, retaddr);
     hppa_set_ior_and_isr(env, addr, mmu_disabled);
 
-    cpu_loop_exit_restore(cs, retaddr);
+    cpu_loop_exit(cs);
 }
 
 void hppa_cpu_do_transaction_failed(CPUState *cs, hwaddr physaddr,
diff --git a/target/hppa/op_helper.c b/target/hppa/op_helper.c
index b1f24a5aad..480fe80844 100644
--- a/target/hppa/op_helper.c
+++ b/target/hppa/op_helper.c
@@ -351,11 +351,12 @@ target_ulong HELPER(probe)(CPUHPPAState *env, target_ulong addr,
     excp = hppa_get_physical_address(env, addr, mmu_idx, 0, &phys,
                                      &prot, NULL);
     if (excp >= 0) {
+        cpu_restore_state(env_cpu(env), GETPC());
         hppa_set_ior_and_isr(env, addr, MMU_IDX_MMU_DISABLED(mmu_idx));
         if (excp == EXCP_DTLB_MISS) {
             excp = EXCP_NA_DTLB_MISS;
         }
-        hppa_dynamic_excp(env, excp, GETPC());
+        helper_excp(env, excp);
     }
     return (want & prot) != 0;
 #endif
-- 
2.44.0