[kvm-unit-tests,PULL,3/9] s390x: Move stsi to library
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Message ID 20190918120426.20832-4-thuth@redhat.com
State New
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Series
  • [kvm-unit-tests,PULL,1/9] s390x: Support PSW restart boot
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Commit Message

Thomas Huth Sept. 18, 2019, 12:04 p.m. UTC
From: Janosch Frank <frankja@linux.ibm.com>

It's needed in multiple tests now.
Return value changes from 0/-1 to the cc.

Signed-off-by: Janosch Frank <frankja@linux.ibm.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Message-Id: <20190826163502.1298-4-frankja@linux.ibm.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
---
 lib/s390x/asm/arch_def.h | 16 ++++++++++++++++
 s390x/skey.c             | 18 ------------------
 2 files changed, 16 insertions(+), 18 deletions(-)

Patch
diff mbox series

diff --git a/lib/s390x/asm/arch_def.h b/lib/s390x/asm/arch_def.h
index 4bbb428..5f8f45e 100644
--- a/lib/s390x/asm/arch_def.h
+++ b/lib/s390x/asm/arch_def.h
@@ -240,4 +240,20 @@  static inline void enter_pstate(void)
 	load_psw_mask(mask);
 }
 
+static inline int stsi(void *addr, int fc, int sel1, int sel2)
+{
+	register int r0 asm("0") = (fc << 28) | sel1;
+	register int r1 asm("1") = sel2;
+	int cc;
+
+	asm volatile(
+		"stsi	0(%3)\n"
+		"ipm	%[cc]\n"
+		"srl	%[cc],28\n"
+		: "+d" (r0), [cc] "=d" (cc)
+		: "d" (r1), "a" (addr)
+		: "cc", "memory");
+	return cc;
+}
+
 #endif
diff --git a/s390x/skey.c b/s390x/skey.c
index b1e11af..fd4fcc7 100644
--- a/s390x/skey.c
+++ b/s390x/skey.c
@@ -70,24 +70,6 @@  static void test_set(void)
 	       skey.str.acc == ret.str.acc && skey.str.fp == ret.str.fp);
 }
 
-static inline int stsi(void *addr, int fc, int sel1, int sel2)
-{
-	register int r0 asm("0") = (fc << 28) | sel1;
-	register int r1 asm("1") = sel2;
-	int rc = 0;
-
-	asm volatile(
-		"	stsi	0(%3)\n"
-		"	jz	0f\n"
-		"	lhi	%1,-1\n"
-		"0:\n"
-		: "+d" (r0), "+d" (rc)
-		: "d" (r1), "a" (addr)
-		: "cc", "memory");
-
-	return rc;
-}
-
 /* Returns true if we are running under z/VM 6.x */
 static bool check_for_zvm6(void)
 {