mirror of
https://github.com/qemu/qemu.git
synced 2024-11-28 22:33:36 +08:00
c42767f2bb
Handle the virtio-ccw revision according to what the guest sets. When revision 1 is selected, we have a virtio-1 standard device with byteswapping for the virtio rings. When a channel gets disabled, we have to revert to the legacy behavior in case the next user of the device does not negotiate the revision 1 anymore (e.g. the boot firmware uses revision 1, but the operating system only uses the legacy mode). Note that revisions > 0 are still disabled. [CH: assure memory accesses are always BE] Signed-off-by: Thomas Huth <thuth@linux.vnet.ibm.com> Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com> Acked-by: Michael S. Tsirkin <mst@redhat.com>
217 lines
5.8 KiB
C
217 lines
5.8 KiB
C
/*
|
|
* virtio ccw target definitions
|
|
*
|
|
* Copyright 2012,2015 IBM Corp.
|
|
* Author(s): Cornelia Huck <cornelia.huck@de.ibm.com>
|
|
* Pierre Morel <pmorel@linux.vnet.ibm.com>
|
|
*
|
|
* This work is licensed under the terms of the GNU GPL, version 2 or (at
|
|
* your option) any later version. See the COPYING file in the top-level
|
|
* directory.
|
|
*/
|
|
|
|
#ifndef HW_S390X_VIRTIO_CCW_H
|
|
#define HW_S390X_VIRTIO_CCW_H
|
|
|
|
#include <hw/virtio/virtio-blk.h>
|
|
#include <hw/virtio/virtio-net.h>
|
|
#include <hw/virtio/virtio-serial.h>
|
|
#include <hw/virtio/virtio-scsi.h>
|
|
#ifdef CONFIG_VHOST_SCSI
|
|
#include <hw/virtio/vhost-scsi.h>
|
|
#endif
|
|
#include <hw/virtio/virtio-balloon.h>
|
|
#include <hw/virtio/virtio-rng.h>
|
|
#include <hw/virtio/virtio-bus.h>
|
|
#include <hw/s390x/s390_flic.h>
|
|
|
|
#define VIRTUAL_CSSID 0xfe
|
|
|
|
#define VIRTIO_CCW_CU_TYPE 0x3832
|
|
#define VIRTIO_CCW_CHPID_TYPE 0x32
|
|
|
|
#define CCW_CMD_SET_VQ 0x13
|
|
#define CCW_CMD_VDEV_RESET 0x33
|
|
#define CCW_CMD_READ_FEAT 0x12
|
|
#define CCW_CMD_WRITE_FEAT 0x11
|
|
#define CCW_CMD_READ_CONF 0x22
|
|
#define CCW_CMD_WRITE_CONF 0x21
|
|
#define CCW_CMD_WRITE_STATUS 0x31
|
|
#define CCW_CMD_SET_IND 0x43
|
|
#define CCW_CMD_SET_CONF_IND 0x53
|
|
#define CCW_CMD_READ_VQ_CONF 0x32
|
|
#define CCW_CMD_SET_IND_ADAPTER 0x73
|
|
#define CCW_CMD_SET_VIRTIO_REV 0x83
|
|
|
|
#define TYPE_VIRTIO_CCW_DEVICE "virtio-ccw-device"
|
|
#define VIRTIO_CCW_DEVICE(obj) \
|
|
OBJECT_CHECK(VirtioCcwDevice, (obj), TYPE_VIRTIO_CCW_DEVICE)
|
|
#define VIRTIO_CCW_DEVICE_CLASS(klass) \
|
|
OBJECT_CLASS_CHECK(VirtIOCCWDeviceClass, (klass), TYPE_VIRTIO_CCW_DEVICE)
|
|
#define VIRTIO_CCW_DEVICE_GET_CLASS(obj) \
|
|
OBJECT_GET_CLASS(VirtIOCCWDeviceClass, (obj), TYPE_VIRTIO_CCW_DEVICE)
|
|
|
|
typedef struct VirtioBusState VirtioCcwBusState;
|
|
typedef struct VirtioBusClass VirtioCcwBusClass;
|
|
|
|
#define TYPE_VIRTIO_CCW_BUS "virtio-ccw-bus"
|
|
#define VIRTIO_CCW_BUS(obj) \
|
|
OBJECT_CHECK(VirtioCcwBus, (obj), TYPE_VIRTIO_CCW_BUS)
|
|
#define VIRTIO_CCW_BUS_GET_CLASS(obj) \
|
|
OBJECT_CHECK(VirtioCcwBusState, (obj), TYPE_VIRTIO_CCW_BUS)
|
|
#define VIRTIO_CCW_BUS_CLASS(klass) \
|
|
OBJECT_CLASS_CHECK(VirtioCcwBusClass, klass, TYPE_VIRTIO_CCW_BUS)
|
|
|
|
typedef struct VirtioCcwDevice VirtioCcwDevice;
|
|
|
|
typedef struct VirtIOCCWDeviceClass {
|
|
DeviceClass parent_class;
|
|
void (*realize)(VirtioCcwDevice *dev, Error **errp);
|
|
int (*exit)(VirtioCcwDevice *dev);
|
|
} VirtIOCCWDeviceClass;
|
|
|
|
/* Performance improves when virtqueue kick processing is decoupled from the
|
|
* vcpu thread using ioeventfd for some devices. */
|
|
#define VIRTIO_CCW_FLAG_USE_IOEVENTFD_BIT 1
|
|
#define VIRTIO_CCW_FLAG_USE_IOEVENTFD (1 << VIRTIO_CCW_FLAG_USE_IOEVENTFD_BIT)
|
|
|
|
typedef struct IndAddr {
|
|
hwaddr addr;
|
|
uint64_t map;
|
|
unsigned long refcnt;
|
|
int len;
|
|
QTAILQ_ENTRY(IndAddr) sibling;
|
|
} IndAddr;
|
|
|
|
struct VirtioCcwDevice {
|
|
DeviceState parent_obj;
|
|
SubchDev *sch;
|
|
char *bus_id;
|
|
int revision;
|
|
VirtioBusState bus;
|
|
bool ioeventfd_started;
|
|
bool ioeventfd_disabled;
|
|
uint32_t flags;
|
|
uint8_t thinint_isc;
|
|
AdapterRoutes routes;
|
|
/* Guest provided values: */
|
|
IndAddr *indicators;
|
|
IndAddr *indicators2;
|
|
IndAddr *summary_indicator;
|
|
uint64_t ind_bit;
|
|
};
|
|
|
|
/* The maximum virtio revision we support. */
|
|
static inline int virtio_ccw_rev_max(VirtIODevice *vdev)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
/* virtual css bus type */
|
|
typedef struct VirtualCssBus {
|
|
BusState parent_obj;
|
|
} VirtualCssBus;
|
|
|
|
#define TYPE_VIRTUAL_CSS_BUS "virtual-css-bus"
|
|
#define VIRTUAL_CSS_BUS(obj) \
|
|
OBJECT_CHECK(VirtualCssBus, (obj), TYPE_VIRTUAL_CSS_BUS)
|
|
|
|
/* virtio-scsi-ccw */
|
|
|
|
#define TYPE_VIRTIO_SCSI_CCW "virtio-scsi-ccw"
|
|
#define VIRTIO_SCSI_CCW(obj) \
|
|
OBJECT_CHECK(VirtIOSCSICcw, (obj), TYPE_VIRTIO_SCSI_CCW)
|
|
|
|
typedef struct VirtIOSCSICcw {
|
|
VirtioCcwDevice parent_obj;
|
|
VirtIOSCSI vdev;
|
|
} VirtIOSCSICcw;
|
|
|
|
#ifdef CONFIG_VHOST_SCSI
|
|
/* vhost-scsi-ccw */
|
|
|
|
#define TYPE_VHOST_SCSI_CCW "vhost-scsi-ccw"
|
|
#define VHOST_SCSI_CCW(obj) \
|
|
OBJECT_CHECK(VHostSCSICcw, (obj), TYPE_VHOST_SCSI_CCW)
|
|
|
|
typedef struct VHostSCSICcw {
|
|
VirtioCcwDevice parent_obj;
|
|
VHostSCSI vdev;
|
|
} VHostSCSICcw;
|
|
#endif
|
|
|
|
/* virtio-blk-ccw */
|
|
|
|
#define TYPE_VIRTIO_BLK_CCW "virtio-blk-ccw"
|
|
#define VIRTIO_BLK_CCW(obj) \
|
|
OBJECT_CHECK(VirtIOBlkCcw, (obj), TYPE_VIRTIO_BLK_CCW)
|
|
|
|
typedef struct VirtIOBlkCcw {
|
|
VirtioCcwDevice parent_obj;
|
|
VirtIOBlock vdev;
|
|
} VirtIOBlkCcw;
|
|
|
|
/* virtio-balloon-ccw */
|
|
|
|
#define TYPE_VIRTIO_BALLOON_CCW "virtio-balloon-ccw"
|
|
#define VIRTIO_BALLOON_CCW(obj) \
|
|
OBJECT_CHECK(VirtIOBalloonCcw, (obj), TYPE_VIRTIO_BALLOON_CCW)
|
|
|
|
typedef struct VirtIOBalloonCcw {
|
|
VirtioCcwDevice parent_obj;
|
|
VirtIOBalloon vdev;
|
|
} VirtIOBalloonCcw;
|
|
|
|
/* virtio-serial-ccw */
|
|
|
|
#define TYPE_VIRTIO_SERIAL_CCW "virtio-serial-ccw"
|
|
#define VIRTIO_SERIAL_CCW(obj) \
|
|
OBJECT_CHECK(VirtioSerialCcw, (obj), TYPE_VIRTIO_SERIAL_CCW)
|
|
|
|
typedef struct VirtioSerialCcw {
|
|
VirtioCcwDevice parent_obj;
|
|
VirtIOSerial vdev;
|
|
} VirtioSerialCcw;
|
|
|
|
/* virtio-net-ccw */
|
|
|
|
#define TYPE_VIRTIO_NET_CCW "virtio-net-ccw"
|
|
#define VIRTIO_NET_CCW(obj) \
|
|
OBJECT_CHECK(VirtIONetCcw, (obj), TYPE_VIRTIO_NET_CCW)
|
|
|
|
typedef struct VirtIONetCcw {
|
|
VirtioCcwDevice parent_obj;
|
|
VirtIONet vdev;
|
|
} VirtIONetCcw;
|
|
|
|
/* virtio-rng-ccw */
|
|
|
|
#define TYPE_VIRTIO_RNG_CCW "virtio-rng-ccw"
|
|
#define VIRTIO_RNG_CCW(obj) \
|
|
OBJECT_CHECK(VirtIORNGCcw, (obj), TYPE_VIRTIO_RNG_CCW)
|
|
|
|
typedef struct VirtIORNGCcw {
|
|
VirtioCcwDevice parent_obj;
|
|
VirtIORNG vdev;
|
|
} VirtIORNGCcw;
|
|
|
|
VirtualCssBus *virtual_css_bus_init(void);
|
|
void virtio_ccw_device_update_status(SubchDev *sch);
|
|
VirtIODevice *virtio_ccw_get_vdev(SubchDev *sch);
|
|
|
|
#ifdef CONFIG_VIRTFS
|
|
#include "hw/9pfs/virtio-9p.h"
|
|
|
|
#define TYPE_VIRTIO_9P_CCW "virtio-9p-ccw"
|
|
#define VIRTIO_9P_CCW(obj) \
|
|
OBJECT_CHECK(V9fsCCWState, (obj), TYPE_VIRTIO_9P_CCW)
|
|
|
|
typedef struct V9fsCCWState {
|
|
VirtioCcwDevice parent_obj;
|
|
V9fsState vdev;
|
|
} V9fsCCWState;
|
|
|
|
#endif /* CONFIG_VIRTFS */
|
|
|
|
#endif
|