From d614be05c8b73033fa141c2f4559c117578b9171 Mon Sep 17 00:00:00 2001 From: David Hildenbrand Date: Tue, 14 Oct 2014 12:11:02 +0200 Subject: 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 Acked-by: Cornelia Huck Signed-off-by: Christian Borntraeger --- drivers/s390/char/sclp_early.c | 8 ++++++++ 1 file changed, 8 insertions(+) (limited to 'drivers/s390') 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; -- cgit 1.4.1