1 /* 2 * virtio ccw target definitions 3 * 4 * Copyright 2012,2015 IBM Corp. 5 * Author(s): Cornelia Huck <cornelia.huck@de.ibm.com> 6 * Pierre Morel <pmorel@linux.vnet.ibm.com> 7 * 8 * This work is licensed under the terms of the GNU GPL, version 2 or (at 9 * your option) any later version. See the COPYING file in the top-level 10 * directory. 11 */ 12 13 #ifndef HW_S390X_VIRTIO_CCW_H 14 #define HW_S390X_VIRTIO_CCW_H 15 16 #include "qom/object.h" 17 #include "hw/virtio/virtio-bus.h" 18 #include "hw/s390x/s390_flic.h" 19 #include "hw/s390x/css.h" 20 #include "ccw-device.h" 21 #include "hw/s390x/css-bridge.h" 22 23 #define VIRTIO_CCW_CU_TYPE 0x3832 24 #define VIRTIO_CCW_CHPID_TYPE 0x32 25 26 #define CCW_CMD_SET_VQ 0x13 27 #define CCW_CMD_VDEV_RESET 0x33 28 #define CCW_CMD_READ_FEAT 0x12 29 #define CCW_CMD_WRITE_FEAT 0x11 30 #define CCW_CMD_READ_CONF 0x22 31 #define CCW_CMD_WRITE_CONF 0x21 32 #define CCW_CMD_WRITE_STATUS 0x31 33 #define CCW_CMD_SET_IND 0x43 34 #define CCW_CMD_SET_CONF_IND 0x53 35 #define CCW_CMD_READ_VQ_CONF 0x32 36 #define CCW_CMD_READ_STATUS 0x72 37 #define CCW_CMD_SET_IND_ADAPTER 0x73 38 #define CCW_CMD_SET_VIRTIO_REV 0x83 39 40 #define TYPE_VIRTIO_CCW_DEVICE "virtio-ccw-device" 41 OBJECT_DECLARE_TYPE(VirtioCcwDevice, VirtIOCCWDeviceClass, VIRTIO_CCW_DEVICE) 42 43 typedef struct VirtioBusState VirtioCcwBusState; 44 typedef struct VirtioBusClass VirtioCcwBusClass; 45 46 #define TYPE_VIRTIO_CCW_BUS "virtio-ccw-bus" 47 DECLARE_OBJ_CHECKERS(VirtioCcwBusState, VirtioCcwBusClass, 48 VIRTIO_CCW_BUS, TYPE_VIRTIO_CCW_BUS) 49 50 /* 51 * modules can reference this symbol to avoid being loaded 52 * into system emulators without ccw support 53 */ 54 extern bool have_virtio_ccw; 55 56 struct VirtIOCCWDeviceClass { 57 CCWDeviceClass parent_class; 58 void (*realize)(VirtioCcwDevice *dev, Error **errp); 59 void (*unrealize)(VirtioCcwDevice *dev); 60 void (*parent_reset)(DeviceState *dev); 61 }; 62 63 /* Performance improves when virtqueue kick processing is decoupled from the 64 * vcpu thread using ioeventfd for some devices. */ 65 #define VIRTIO_CCW_FLAG_USE_IOEVENTFD_BIT 1 66 #define VIRTIO_CCW_FLAG_USE_IOEVENTFD (1 << VIRTIO_CCW_FLAG_USE_IOEVENTFD_BIT) 67 68 struct VirtioCcwDevice { 69 CcwDevice parent_obj; 70 int revision; 71 uint32_t max_rev; 72 VirtioBusState bus; 73 uint32_t flags; 74 uint8_t thinint_isc; 75 AdapterRoutes routes; 76 /* Guest provided values: */ 77 IndAddr *indicators; 78 IndAddr *indicators2; 79 IndAddr *summary_indicator; 80 uint64_t ind_bit; 81 bool force_revision_1; 82 }; 83 84 /* The maximum virtio revision we support. */ 85 #define VIRTIO_CCW_MAX_REV 2 86 static inline int virtio_ccw_rev_max(VirtioCcwDevice *dev) 87 { 88 return dev->max_rev; 89 } 90 91 VirtIODevice *virtio_ccw_get_vdev(SubchDev *sch); 92 93 #endif 94