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[Qemu-devel] [PULL v2 11/70] target/s390x: Use unwind data for helper_cl


From: Richard Henderson
Subject: [Qemu-devel] [PULL v2 11/70] target/s390x: Use unwind data for helper_clst
Date: Tue, 6 Jun 2017 17:30:20 -0700

Reviewed-by: Thomas Huth <address@hidden>
Reviewed-by: Aurelien Jarno <address@hidden>
Signed-off-by: Richard Henderson <address@hidden>
---
 target/s390x/mem_helper.c | 5 +++--
 target/s390x/translate.c  | 1 -
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/target/s390x/mem_helper.c b/target/s390x/mem_helper.c
index 33d83e5..af2801e 100644
--- a/target/s390x/mem_helper.c
+++ b/target/s390x/mem_helper.c
@@ -362,6 +362,7 @@ uint64_t HELPER(srst)(CPUS390XState *env, uint64_t r0, 
uint64_t end,
 /* unsigned string compare (c is string terminator) */
 uint64_t HELPER(clst)(CPUS390XState *env, uint64_t c, uint64_t s1, uint64_t s2)
 {
+    uintptr_t ra = GETPC();
     uint32_t len;
 
     c = c & 0xff;
@@ -371,8 +372,8 @@ uint64_t HELPER(clst)(CPUS390XState *env, uint64_t c, 
uint64_t s1, uint64_t s2)
     /* Lest we fail to service interrupts in a timely manner, limit the
        amount of work we're willing to do.  For now, let's cap at 8k.  */
     for (len = 0; len < 0x2000; ++len) {
-        uint8_t v1 = cpu_ldub_data(env, s1 + len);
-        uint8_t v2 = cpu_ldub_data(env, s2 + len);
+        uint8_t v1 = cpu_ldub_data_ra(env, s1 + len, ra);
+        uint8_t v2 = cpu_ldub_data_ra(env, s2 + len, ra);
         if (v1 == v2) {
             if (v1 == c) {
                 /* Equal.  CC=0, and don't advance the registers.  */
diff --git a/target/s390x/translate.c b/target/s390x/translate.c
index 9fc5b31..b87755e 100644
--- a/target/s390x/translate.c
+++ b/target/s390x/translate.c
@@ -1942,7 +1942,6 @@ static ExitStatus op_clm(DisasContext *s, DisasOps *o)
 
 static ExitStatus op_clst(DisasContext *s, DisasOps *o)
 {
-    potential_page_fault(s);
     gen_helper_clst(o->in1, cpu_env, regs[0], o->in1, o->in2);
     set_cc_static(s);
     return_low128(o->in2);
-- 
2.9.4




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