From 63f1934d562de7cf3124de0ef617dcd3be98b279 Mon Sep 17 00:00:00 2001 From: Dong Jia Shi Date: Fri, 17 Mar 2017 04:17:31 +0100 Subject: vfio: ccw: basic implementation for vfio_ccw driver To make vfio support subchannel devices, we need a css driver for the vfio subchannels. This patch adds a basic vfio-ccw subchannel driver for this purpose. To enable VFIO for vfio-ccw, enable S390_CCW_IOMMU config option and configure VFIO as required. Acked-by: Pierre Morel Signed-off-by: Dong Jia Shi Message-Id: <20170317031743.40128-5-bjsdjshi@linux.vnet.ibm.com> Signed-off-by: Cornelia Huck --- arch/s390/include/asm/isc.h | 1 + 1 file changed, 1 insertion(+) (limited to 'arch/s390/include/asm/isc.h') 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 */ -- cgit