[PATCH 02/32] s390/sclp: detect the AISII facility
From: Matthew Rosato <mjrosato@linux.ibm.com>
Date: 2021-12-07 20:58:14
Also in:
kvm, lkml
Subsystem:
s390 architecture, the rest · Maintainers:
Heiko Carstens, Vasily Gorbik, Alexander Gordeev, Linus Torvalds
Detect the Adapter Interruption Source ID Interpretation facility. Reviewed-by: Eric Farman <farman@linux.ibm.com> Signed-off-by: Matthew Rosato <mjrosato@linux.ibm.com> --- arch/s390/include/asm/sclp.h | 1 + drivers/s390/char/sclp_early.c | 1 + 2 files changed, 2 insertions(+)
diff --git a/arch/s390/include/asm/sclp.h b/arch/s390/include/asm/sclp.h
index c84e8e0ca344..524a99baf221 100644
--- a/arch/s390/include/asm/sclp.h
+++ b/arch/s390/include/asm/sclp.h@@ -89,6 +89,7 @@ struct sclp_info { unsigned char has_sipl : 1; unsigned char has_dirq : 1; unsigned char has_zpci_interp : 1; + unsigned char has_aisii : 1; unsigned int ibc; unsigned int mtid; unsigned int mtid_cp;
diff --git a/drivers/s390/char/sclp_early.c b/drivers/s390/char/sclp_early.c
index 2e8199b7ae50..a73120b8a5de 100644
--- a/drivers/s390/char/sclp_early.c
+++ b/drivers/s390/char/sclp_early.c@@ -45,6 +45,7 @@ static void __init sclp_early_facilities_detect(void) sclp.has_gisaf = !!(sccb->fac118 & 0x08); sclp.has_hvs = !!(sccb->fac119 & 0x80); sclp.has_kss = !!(sccb->fac98 & 0x01); + sclp.has_aisii = !!(sccb->fac118 & 0x40); sclp.has_zpci_interp = !!(sccb->fac118 & 0x01); if (sccb->fac85 & 0x02) S390_lowcore.machine_flags |= MACHINE_FLAG_ESOP;
--
2.27.0