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Violators will be prosecuted for from ; Thu, 4 May 2017 11:48:13 +0100 From: Cornelia Huck Date: Thu, 4 May 2017 12:48:01 +0200 In-Reply-To: <20170504104806.8120-1-cornelia.huck@de.ibm.com> References: <20170504104806.8120-1-cornelia.huck@de.ibm.com> Message-Id: <20170504104806.8120-4-cornelia.huck@de.ibm.com> Subject: [Qemu-devel] [PULL 3/8] s390x/3270: Add abstract emulated ccw-attached 3270 device List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: peter.maydell@linaro.org Cc: borntraeger@de.ibm.com, agraf@suse.de, qemu-devel@nongnu.org, Yang Chen , Jing Liu , Cornelia Huck From: Yang Chen This introduces the infrastructure for the emulated 3270 devices, which will be attached to the virtual-css-bus. Signed-off-by: Yang Chen Signed-off-by: Jing Liu Reviewed-by: QingFeng Hao Reviewed-by: Dong Jia Shi Signed-off-by: Cornelia Huck --- hw/s390x/3270-ccw.c | 99 +++++++++++++++++++++++++++++++++++++++++++++ hw/s390x/Makefile.objs | 1 + include/hw/s390x/3270-ccw.h | 44 ++++++++++++++++++++ 3 files changed, 144 insertions(+) create mode 100644 hw/s390x/3270-ccw.c create mode 100644 include/hw/s390x/3270-ccw.h diff --git a/hw/s390x/3270-ccw.c b/hw/s390x/3270-ccw.c new file mode 100644 index 0000000000..47b9e89bb7 --- /dev/null +++ b/hw/s390x/3270-ccw.c @@ -0,0 +1,99 @@ +/* + * Emulated ccw-attached 3270 implementation + * + * Copyright 2017 IBM Corp. + * Author(s): Yang Chen + * Jing Liu + * + * 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. + */ +#include "qemu/osdep.h" +#include "qapi/error.h" +#include "qemu/module.h" +#include "cpu.h" +#include "hw/s390x/css.h" +#include "hw/s390x/css-bridge.h" +#include "hw/s390x/3270-ccw.h" + +static void emulated_ccw_3270_realize(DeviceState *ds, Error **errp) +{ + uint16_t chpid; + EmulatedCcw3270Device *dev = EMULATED_CCW_3270(ds); + EmulatedCcw3270Class *ck = EMULATED_CCW_3270_GET_CLASS(dev); + CcwDevice *cdev = CCW_DEVICE(ds); + CCWDeviceClass *cdk = CCW_DEVICE_GET_CLASS(cdev); + SubchDev *sch = css_create_virtual_sch(cdev->devno, errp); + Error *err = NULL; + + if (!sch) { + return; + } + + if (!ck->init) { + goto out_err; + } + + sch->driver_data = dev; + cdev->sch = sch; + chpid = css_find_free_chpid(sch->cssid); + + if (chpid > MAX_CHPID) { + error_setg(&err, "No available chpid to use."); + goto out_err; + } + + sch->id.reserved = 0xff; + sch->id.cu_type = EMULATED_CCW_3270_CU_TYPE; + css_sch_build_virtual_schib(sch, (uint8_t)chpid, + EMULATED_CCW_3270_CHPID_TYPE); + + ck->init(dev, &err); + if (err) { + goto out_err; + } + + cdk->realize(cdev, &err); + if (err) { + goto out_err; + } + + return; + +out_err: + error_propagate(errp, err); + css_subch_assign(sch->cssid, sch->ssid, sch->schid, sch->devno, NULL); + cdev->sch = NULL; + g_free(sch); +} + +static Property emulated_ccw_3270_properties[] = { + DEFINE_PROP_END_OF_LIST(), +}; + +static void emulated_ccw_3270_class_init(ObjectClass *klass, void *data) +{ + DeviceClass *dc = DEVICE_CLASS(klass); + + dc->props = emulated_ccw_3270_properties; + dc->bus_type = TYPE_VIRTUAL_CSS_BUS; + dc->realize = emulated_ccw_3270_realize; + dc->hotpluggable = false; +} + +static const TypeInfo emulated_ccw_3270_info = { + .name = TYPE_EMULATED_CCW_3270, + .parent = TYPE_CCW_DEVICE, + .instance_size = sizeof(EmulatedCcw3270Device), + .class_init = emulated_ccw_3270_class_init, + .class_size = sizeof(EmulatedCcw3270Class), + .abstract = true, +}; + +static void emulated_ccw_register(void) +{ + type_register_static(&emulated_ccw_3270_info); +} + +type_init(emulated_ccw_register) diff --git a/hw/s390x/Makefile.objs b/hw/s390x/Makefile.objs index 41ac4ec325..36bd4b1645 100644 --- a/hw/s390x/Makefile.objs +++ b/hw/s390x/Makefile.objs @@ -7,6 +7,7 @@ obj-y += sclpcpu.o obj-y += ipl.o obj-y += css.o obj-y += s390-virtio-ccw.o +obj-y += 3270-ccw.o obj-y += virtio-ccw.o obj-y += css-bridge.o obj-y += ccw-device.o diff --git a/include/hw/s390x/3270-ccw.h b/include/hw/s390x/3270-ccw.h new file mode 100644 index 0000000000..45ea515e9f --- /dev/null +++ b/include/hw/s390x/3270-ccw.h @@ -0,0 +1,44 @@ +/* + * Emulated ccw-attached 3270 definitions + * + * Copyright 2017 IBM Corp. + * Author(s): Yang Chen + * Jing Liu + * + * 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_3270_CCW_H +#define HW_S390X_3270_CCW_H + +#include "hw/sysbus.h" +#include "hw/s390x/css.h" +#include "hw/s390x/ccw-device.h" + +#define EMULATED_CCW_3270_CU_TYPE 0x3270 +#define EMULATED_CCW_3270_CHPID_TYPE 0x1a + +#define TYPE_EMULATED_CCW_3270 "emulated-ccw-3270" +#define EMULATED_CCW_3270(obj) \ + OBJECT_CHECK(EmulatedCcw3270Device, (obj), TYPE_EMULATED_CCW_3270) +#define EMULATED_CCW_3270_CLASS(klass) \ + OBJECT_CLASS_CHECK(EmulatedCcw3270Class, (klass), TYPE_EMULATED_CCW_3270) +#define EMULATED_CCW_3270_GET_CLASS(obj) \ + OBJECT_GET_CLASS(EmulatedCcw3270Class, (obj), TYPE_EMULATED_CCW_3270) + +typedef struct EmulatedCcw3270Device { + CcwDevice parent_obj; +} EmulatedCcw3270Device; + +typedef struct EmulatedCcw3270Class { + CCWDeviceClass parent_class; + + void (*init)(EmulatedCcw3270Device *, Error **); + int (*read_payload_3270)(EmulatedCcw3270Device *, uint32_t, uint16_t); + int (*write_payload_3270)(EmulatedCcw3270Device *, uint8_t, uint32_t, + uint16_t); +} EmulatedCcw3270Class; + +#endif -- 2.11.0