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authorMartin Schwidefsky <schwidefsky@de.ibm.com>2017-04-27 07:29:40 +0200
committerMartin Schwidefsky <schwidefsky@de.ibm.com>2017-04-27 07:34:07 +0200
commitd0790fb6e5bc5a6bb923de9c2be7fc210d6b689b (patch)
tree06e5eda704d2aee3c15c47d8a8f095ba8beac0bc /arch/s390
parent284c43e6af415515865d2900d18d1382979c777c (diff)
parent152c1c8d60ebedce8cc912c12f9be9ceca6c6671 (diff)
downloadlinux-d0790fb6e5bc5a6bb923de9c2be7fc210d6b689b.tar.gz
Merge branch 's390forkvm' of git://git.kernel.org/pub/scm/linux/kernel/git/kvms390/linux into features
Pull cpacf changes for KVM from Jason Herne:

Add query support for the KMA instruction.
Diffstat (limited to 'arch/s390')
-rw-r--r--arch/s390/include/asm/cpacf.h5
1 files changed, 3 insertions, 2 deletions
diff --git a/arch/s390/include/asm/cpacf.h b/arch/s390/include/asm/cpacf.h
index 7707a35176c4..e06f2556b316 100644
--- a/arch/s390/include/asm/cpacf.h
+++ b/arch/s390/include/asm/cpacf.h
@@ -26,6 +26,7 @@
 #define CPACF_PCC		0xb92c		/* MSA4 */
 #define CPACF_KMCTR		0xb92d		/* MSA4 */
 #define CPACF_PRNO		0xb93c		/* MSA5 */
+#define CPACF_KMA		0xb929		/* MSA8 */
 
 /*
  * En/decryption modifier bits
@@ -151,8 +152,8 @@ static inline void __cpacf_query(unsigned int opcode, cpacf_mask_t *mask)
 
 	asm volatile(
 		"	spm 0\n" /* pckmo doesn't change the cc */
-		/* Parameter registers are ignored, but may not be 0 */
-		"0:	.insn	rrf,%[opc] << 16,2,2,2,0\n"
+		/* Parameter regs are ignored, but must be nonzero and unique */
+		"0:	.insn	rrf,%[opc] << 16,2,4,6,0\n"
 		"	brc	1,0b\n"	/* handle partial completion */
 		: "=m" (*mask)
 		: [fc] "d" (r0), [pba] "a" (r1), [opc] "i" (opcode)