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-rw-r--r--arch/s390/Kconfig10
-rw-r--r--arch/s390/include/asm/isc.h1
2 files changed, 11 insertions, 0 deletions
diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig
index a2dcef0aacc7..b53f0359f2b6 100644
--- a/arch/s390/Kconfig
+++ b/arch/s390/Kconfig
@@ -672,6 +672,16 @@ config EADM_SCH
To compile this driver as a module, choose M here: the
module will be called eadm_sch.
+config VFIO_CCW
+ def_tristate n
+ prompt "Support for VFIO-CCW subchannels"
+ depends on S390_CCW_IOMMU && VFIO
+ help
+ This driver allows usage of I/O subchannels via VFIO-CCW.
+
+ To compile this driver as a module, choose M here: the
+ module will be called vfio_ccw.
+
endmenu
menu "Dump support"
diff --git a/arch/s390/include/asm/isc.h b/arch/s390/include/asm/isc.h
index 68d7d68300f2..8a0b721a9b8d 100644
--- a/arch/s390/include/asm/isc.h
+++ b/arch/s390/include/asm/isc.h
@@ -16,6 +16,7 @@
#define CONSOLE_ISC 1 /* console I/O subchannel */
#define EADM_SCH_ISC 4 /* EADM subchannels */
#define CHSC_SCH_ISC 7 /* CHSC subchannels */
+#define VFIO_CCW_ISC IO_SCH_ISC /* VFIO-CCW I/O subchannels */
/* Adapter interrupts. */
#define QDIO_AIRQ_ISC IO_SCH_ISC /* I/O subchannel in qdio mode */
#define PCI_ISC 2 /* PCI I/O subchannels */