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| author | David Hildenbrand <dahi@linux.vnet.ibm.com> | 2014-10-14 12:11:02 +0200 |
|---|---|---|
| committer | Christian Borntraeger <borntraeger@de.ibm.com> | 2015-01-23 13:25:35 +0100 |
| commit | d614be05c8b73033fa141c2f4559c117578b9171 (patch) | |
| tree | 626955f3dc327e7f7454210741b16948a8b5af94 /drivers/s390 | |
| parent | KVM: s390: SIGP SET PREFIX cleanup (diff) | |
| download | linux-d614be05c8b73033fa141c2f4559c117578b9171.tar.xz linux-d614be05c8b73033fa141c2f4559c117578b9171.zip | |
s390/sclp: introduce check for the SIGP Interpretation Facility
This patch introduces the infrastructure to check whether the SIGP
Interpretation Facility is installed on all VCPUs in the configuration.
Signed-off-by: David Hildenbrand <dahi@linux.vnet.ibm.com>
Acked-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Diffstat (limited to 'drivers/s390')
| -rw-r--r-- | drivers/s390/char/sclp_early.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/s390/char/sclp_early.c b/drivers/s390/char/sclp_early.c index 5bd6cb145a87..b8a5bf5f1f3d 100644 --- a/drivers/s390/char/sclp_early.c +++ b/drivers/s390/char/sclp_early.c @@ -49,6 +49,7 @@ static unsigned long sclp_hsa_size; static unsigned int sclp_max_cpu; static struct sclp_ipl_info sclp_ipl_info; static unsigned char sclp_siif; +static unsigned char sclp_sigpif; static u32 sclp_ibc; u64 sclp_facilities; @@ -131,6 +132,7 @@ static void __init sclp_facilities_detect(struct read_info_sccb *sccb) if (boot_cpu_address != cpue->address) continue; sclp_siif = cpue->siif; + sclp_sigpif = cpue->sigpif; break; } @@ -172,6 +174,12 @@ int sclp_has_siif(void) } EXPORT_SYMBOL(sclp_has_siif); +int sclp_has_sigpif(void) +{ + return sclp_sigpif; +} +EXPORT_SYMBOL(sclp_has_sigpif); + unsigned int sclp_get_ibc(void) { return sclp_ibc; |