From mboxrd@z Thu Jan 1 00:00:00 1970 From: Cornelia Huck Subject: [PATCH 1/2] vfio-ccw: new capability chain support Date: Thu, 22 Nov 2018 17:54:56 +0100 Message-ID: <20181122165457.4517-2-cohuck@redhat.com> References: <20181122165457.4517-1-cohuck@redhat.com> Cc: linux-s390@vger.kernel.org, kvm@vger.kernel.org, Cornelia Huck , Alex Williamson , qemu-devel@nongnu.org, qemu-s390x@nongnu.org To: Halil Pasic , Eric Farman , Farhan Ali , Pierre Morel Return-path: In-Reply-To: <20181122165457.4517-1-cohuck@redhat.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+gceq-qemu-devel2=m.gmane.org@nongnu.org Sender: "Qemu-devel" List-Id: kvm.vger.kernel.org To be replaced with a real linux-headers update. Signed-off-by: Cornelia Huck --- linux-headers/linux/vfio.h | 4 ++++ linux-headers/linux/vfio_ccw.h | 12 ++++++++++++ 2 files changed, 16 insertions(+) diff --git a/linux-headers/linux/vfio.h b/linux-headers/linux/vfio.h index ceb6453394..c9ba8d52a0 100644 --- a/linux-headers/linux/vfio.h +++ b/linux-headers/linux/vfio.h @@ -297,12 +297,16 @@ struct vfio_region_info_cap_type { #define VFIO_REGION_TYPE_PCI_VENDOR_TYPE (1 << 31) #define VFIO_REGION_TYPE_PCI_VENDOR_MASK (0xffff) +#define VFIO_REGION_TYPE_CCW (1 << 30) /* 8086 Vendor sub-types */ #define VFIO_REGION_SUBTYPE_INTEL_IGD_OPREGION (1) #define VFIO_REGION_SUBTYPE_INTEL_IGD_HOST_CFG (2) #define VFIO_REGION_SUBTYPE_INTEL_IGD_LPC_CFG (3) +/* ccw sub-types */ +#define VFIO_REGION_SUBTYPE_CCW_ASYNC_CMD (1) + /* * The MSIX mappable capability informs that MSIX data of a BAR can be mmapped * which allows direct access to non-MSIX registers which happened to be within diff --git a/linux-headers/linux/vfio_ccw.h b/linux-headers/linux/vfio_ccw.h index 5bf96c3812..fcc3e69ef5 100644 --- a/linux-headers/linux/vfio_ccw.h +++ b/linux-headers/linux/vfio_ccw.h @@ -12,6 +12,7 @@ #include +/* used for START SUBCHANNEL, always present */ struct ccw_io_region { #define ORB_AREA_SIZE 12 __u8 orb_area[ORB_AREA_SIZE]; @@ -22,4 +23,15 @@ struct ccw_io_region { __u32 ret_code; } __attribute__((packed)); +/* + * used for processing commands that trigger asynchronous actions + * Note: this is controlled by a capability + */ +#define VFIO_CCW_ASYNC_CMD_HSCH (1 << 0) +#define VFIO_CCW_ASYNC_CMD_CSCH (1 << 1) +struct ccw_cmd_region { + __u32 command; + __u32 ret_code; +} __attribute__((packed)); + #endif -- 2.17.2