[Qemu-devel] [PULL 27/69] target/s390x: Use unwind data for helper_testblock

[Richard Henderson]

Reviewed-by: Thomas Huth <address@hidden>
Reviewed-by: Aurelien Jarno <address@hidden>
Signed-off-by: Richard Henderson <address@hidden>
---
 target/s390x/mem_helper.c | 3 +++
 target/s390x/translate.c  | 1 -
 2 files changed, 3 insertions(+), 1 deletion(-)

diff --git a/target/s390x/mem_helper.c b/target/s390x/mem_helper.c
index b64c04e..7df2e53 100644
--- a/target/s390x/mem_helper.c
+++ b/target/s390x/mem_helper.c
@@ -939,6 +939,7 @@ void HELPER(stctl)(CPUS390XState *env, uint32_t r1, 
uint64_t a2, uint32_t r3)
 
 uint32_t HELPER(testblock)(CPUS390XState *env, uint64_t real_addr)
 {
+    uintptr_t ra = GETPC();
     CPUState *cs = CPU(s390_env_get_cpu(env));
     uint64_t abs_addr;
     int i;
@@ -947,12 +948,14 @@ uint32_t HELPER(testblock)(CPUS390XState *env, uint64_t 
real_addr)
     abs_addr = mmu_real2abs(env, real_addr) & TARGET_PAGE_MASK;
     if (!address_space_access_valid(&address_space_memory, abs_addr,
                                     TARGET_PAGE_SIZE, true)) {
+        cpu_restore_state(cs, ra);
         program_interrupt(env, PGM_ADDRESSING, 4);
         return 1;
     }
 
     /* Check low-address protection */
     if ((env->cregs[0] & CR0_LOWPROT) && real_addr < 0x2000) {
+        cpu_restore_state(cs, ra);
         program_interrupt(env, PGM_PROTECTION, 4);
         return 1;
     }
diff --git a/target/s390x/translate.c b/target/s390x/translate.c
index 669da89..cd017ce 100644
--- a/target/s390x/translate.c
+++ b/target/s390x/translate.c
@@ -4042,7 +4042,6 @@ static ExitStatus op_tcxb(DisasContext *s, DisasOps *o)
 static ExitStatus op_testblock(DisasContext *s, DisasOps *o)
 {
     check_privileged(s);
-    potential_page_fault(s);
     gen_helper_testblock(cc_op, cpu_env, o->in2);
     set_cc_static(s);
     return NO_EXIT;
-- 
2.9.4