diff options
| author | David Hildenbrand <dahi@linux.vnet.ibm.com> | 2016-05-18 15:59:06 +0200 |
|---|---|---|
| committer | Christian Borntraeger <borntraeger@de.ibm.com> | 2016-06-10 12:07:16 +0200 |
| commit | 1afd43e0fbba4a92effc22977e3a7e64213ee860 (patch) | |
| tree | 7606c4e9f237b2e8a675b071f85389b8c535d70e /arch | |
| parent | bcfa01d787278476f3e79530d03df9b3f52e6e59 (diff) | |
s390/crypto: allow to query all known cpacf functions
KVM will have to query these functions, let's add at least the query
capabilities.
PCKMO has RRE format, as bit 16-31 are ignored, we can still use the
existing function. As PCKMO won't touch the cc, let's force it to 0
upfront.
Signed-off-by: David Hildenbrand <dahi@linux.vnet.ibm.com>
Acked-by: Ingo Tuchscherer <ingo.tuchscherer@linux.vnet.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/s390/include/asm/cpacf.h | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/arch/s390/include/asm/cpacf.h b/arch/s390/include/asm/cpacf.h index 1a82cf26ee11..d28621de8e0b 100644 --- a/arch/s390/include/asm/cpacf.h +++ b/arch/s390/include/asm/cpacf.h @@ -20,6 +20,9 @@ #define CPACF_KMC 0xb92f /* MSA */ #define CPACF_KIMD 0xb93e /* MSA */ #define CPACF_KLMD 0xb93f /* MSA */ +#define CPACF_PCKMO 0xb928 /* MSA3 */ +#define CPACF_KMF 0xb92a /* MSA4 */ +#define CPACF_KMO 0xb92b /* MSA4 */ #define CPACF_PCC 0xb92c /* MSA4 */ #define CPACF_KMCTR 0xb92d /* MSA4 */ #define CPACF_PPNO 0xb93c /* MSA5 */ @@ -136,6 +139,7 @@ static inline void __cpacf_query(unsigned int opcode, unsigned char *status) register unsigned long r1 asm("1") = (unsigned long) status; 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" " brc 1,0b\n" /* handle partial completion */ @@ -157,6 +161,12 @@ static inline int cpacf_query(unsigned int opcode, unsigned int func) if (!test_facility(17)) /* check for MSA */ return 0; break; + case CPACF_PCKMO: + if (!test_facility(76)) /* check for MSA3 */ + return 0; + break; + case CPACF_KMF: + case CPACF_KMO: case CPACF_PCC: case CPACF_KMCTR: if (!test_facility(77)) /* check for MSA4 */ |