Commit 1b365b2e authored by Anthony Liguori's avatar Anthony Liguori
Browse files

Merge remote-tracking branch 'borntraeger/tags/s390-next-20130924' into staging 

This is a bunch of fixes/changes for the s390 architecture. It also
contains the fixes from the previous pull request, which did not make
it yet.
Overall it contains
- a fix for kexec without kdump (which uses diag308 subcode 0 instead of 1)
- several sclp related fixes
- some initial sclp migration code
- the sclp line mode console
- A fix for a boot problem with the virtio ccw ipl bios
- zeroed out padding bytes for the notes section of dump-guest-memory
- some cleanups

# gpg: Signature made Tue 24 Sep 2013 02:18:44 AM CDT using RSA key ID B5A61C7C
# gpg: Can't check signature: public key not found

# By Christian Borntraeger (6) and others
# Via Christian Borntraeger
* borntraeger/tags/s390-next-20130924:
  s390/sclplmconsole: Add support for SCLP line-mode console
  s390/ebcdic: Move conversion tables to header file
  s390/eventfacility: allow childs to handle more than 1 event type
  s390/eventfacility: remove unused event_type variable
  s390/eventfacility: Fix receive/send masks
  s390/eventfacility: fix multiple Read Event Data sources
  s390/sclp: add reset() functions
  s390/sclpquiesce: Add code to support live migration
  s390/sclpconsole: Add code to support live migration for sclpconsole
  s390/sclpconsole: modify definition of input buffer
  s390/kexec: Implement diag308 subcode 0
  s390/ioinst: Moved the CC setting to the IO instruction handlers
  s390/cpu: Make setcc() function available to other files
  s390/ipl: Update the s390-ccw.img rom
  s390/ipl: Fix waiting for virtio processing
  s390/dump: zero out padding bytes in notes sections
  s390/kvm: Add check for priviledged SCLP handler

Message-id: 1380007671-18976-1-git-send-email-borntraeger@de.ibm.com
parents 53d09b76 6a444f85

hw/char/Makefile.objs

+1 −1
Original line number Diff line number Diff line
@@ -22,6 +22,6 @@ common-obj-$(CONFIG_IMX) += imx_serial.o 
common-obj-$(CONFIG_LM32) += lm32_juart.o

common-obj-$(CONFIG_LM32) += lm32_uart.o

common-obj-$(CONFIG_MILKYMIST) += milkymist-uart.o

common-obj-$(CONFIG_SCLPCONSOLE) += sclpconsole.o

common-obj-$(CONFIG_SCLPCONSOLE) += sclpconsole.o sclpconsole-lm.o



obj-$(CONFIG_VIRTIO) += virtio-serial-bus.o

hw/char/sclpconsole-lm.c

0 → 100644
+398 −0
Original line number Diff line number Diff line 
/*

 * SCLP event types

 *    Operations Command - Line Mode input

 *    Message            - Line Mode output

 *

 * Copyright IBM, Corp. 2013

 *

 * Authors:

 *  Heinz Graalfs <graalfs@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.

 *

 */



#include "hw/qdev.h"

#include "qemu/thread.h"

#include "qemu/error-report.h"

#include "sysemu/char.h"



#include "hw/s390x/sclp.h"

#include "hw/s390x/event-facility.h"

#include "hw/s390x/ebcdic.h"



#define SIZE_BUFFER 4096

#define NEWLINE     "\n"



typedef struct OprtnsCommand {

    EventBufferHeader header;

    MDMSU message_unit;

    char data[0];

} QEMU_PACKED OprtnsCommand;



/* max size for line-mode data in 4K SCCB page */

#define SIZE_CONSOLE_BUFFER (SCCB_DATA_LEN - sizeof(OprtnsCommand))



typedef struct SCLPConsoleLM {

    SCLPEvent event;

    CharDriverState *chr;

    bool echo;                  /* immediate echo of input if true        */

    uint32_t write_errors;      /* errors writing to char layer           */

    uint32_t length;            /* length of byte stream in buffer        */

    uint8_t buf[SIZE_CONSOLE_BUFFER];

    qemu_irq irq_console_read;

} SCLPConsoleLM;



/*

*  Character layer call-back functions

 *

 * Allow 1 character at a time

 *

 * Accumulate bytes from character layer in console buffer,

 * event_pending is set when a newline character is encountered

 *

 * The maximum command line length is limited by the maximum

 * space available in an SCCB

 */



static int chr_can_read(void *opaque)

{

    SCLPConsoleLM *scon = opaque;



    if (scon->event.event_pending) {

        return 0;

    } else if (SIZE_CONSOLE_BUFFER - scon->length) {

        return 1;

    }

    return 0;

}



static void receive_from_chr_layer(SCLPConsoleLM *scon, const uint8_t *buf,

                                   int size)

{

    assert(size == 1);



    if (*buf == '\r' || *buf == '\n') {

        scon->event.event_pending = true;

        return;

    }

    scon->buf[scon->length] = *buf;

    scon->length += 1;

    if (scon->echo) {

        qemu_chr_fe_write(scon->chr, buf, size);

    }

}



/*

 * Send data from a char device over to the guest

 */

static void chr_read(void *opaque, const uint8_t *buf, int size)

{

    SCLPConsoleLM *scon = opaque;



    receive_from_chr_layer(scon, buf, size);

    if (scon->event.event_pending) {

        /* trigger SCLP read operation */

        qemu_irq_raise(scon->irq_console_read);

    }

}



/* functions to be called by event facility */



static bool can_handle_event(uint8_t type)

{

    return type == SCLP_EVENT_MESSAGE || type == SCLP_EVENT_PMSGCMD;

}



static unsigned int send_mask(void)

{

    return SCLP_EVENT_MASK_OP_CMD | SCLP_EVENT_MASK_PMSGCMD;

}



static unsigned int receive_mask(void)

{

    return SCLP_EVENT_MASK_MSG | SCLP_EVENT_MASK_PMSGCMD;

}



/*

 * Triggered by SCLP's read_event_data

 * - convert ASCII byte stream to EBCDIC and

 * - copy converted data into provided (SCLP) buffer

 */

static int get_console_data(SCLPEvent *event, uint8_t *buf, size_t *size,

                            int avail)

{

    int len;



    SCLPConsoleLM *cons = DO_UPCAST(SCLPConsoleLM, event, event);



    len = cons->length;

    /* data need to fit into provided SCLP buffer */

    if (len > avail) {

        return 1;

    }



    ebcdic_put(buf, (char *)&cons->buf, len);

    *size = len;

    cons->length = 0;

    /* data provided and no more data pending */

    event->event_pending = false;

    return 0;

}



static int read_event_data(SCLPEvent *event, EventBufferHeader *evt_buf_hdr,

                           int *slen)

{

    int avail, rc;

    size_t src_len;

    uint8_t *to;

    OprtnsCommand *oc = (OprtnsCommand *) evt_buf_hdr;



    if (!event->event_pending) {

        /* no data pending */

        return 0;

    }



    to = (uint8_t *)&oc->data;

    avail = *slen - sizeof(OprtnsCommand);

    rc = get_console_data(event, to, &src_len, avail);

    if (rc) {

        /* data didn't fit, try next SCCB */

        return 1;

    }



    oc->message_unit.mdmsu.gds_id = GDS_ID_MDSMU;

    oc->message_unit.mdmsu.length = cpu_to_be16(sizeof(struct MDMSU));



    oc->message_unit.cpmsu.gds_id = GDS_ID_CPMSU;

    oc->message_unit.cpmsu.length =

        cpu_to_be16(sizeof(struct MDMSU) - sizeof(GdsVector));



    oc->message_unit.text_command.gds_id = GDS_ID_TEXTCMD;

    oc->message_unit.text_command.length =

        cpu_to_be16(sizeof(struct MDMSU) - (2 * sizeof(GdsVector)));



    oc->message_unit.self_def_text_message.key = GDS_KEY_SELFDEFTEXTMSG;

    oc->message_unit.self_def_text_message.length =

        cpu_to_be16(sizeof(struct MDMSU) - (3 * sizeof(GdsVector)));



    oc->message_unit.text_message.key = GDS_KEY_TEXTMSG;

    oc->message_unit.text_message.length =

        cpu_to_be16(sizeof(GdsSubvector) + src_len);



    oc->header.length = cpu_to_be16(sizeof(OprtnsCommand) + src_len);

    oc->header.type = SCLP_EVENT_OPRTNS_COMMAND;

    *slen = avail - src_len;



    return 1;

}



/*

 * Triggered by SCLP's write_event_data

 *  - write console data to character layer

 *  returns < 0 if an error occurred

 */

static int write_console_data(SCLPEvent *event, const uint8_t *buf, int len)

{

    int ret = 0;

    const uint8_t *buf_offset;



    SCLPConsoleLM *scon = DO_UPCAST(SCLPConsoleLM, event, event);



    if (!scon->chr) {

        /* If there's no backend, we can just say we consumed all data. */

        return len;

    }



    buf_offset = buf;

    while (len > 0) {

        ret = qemu_chr_fe_write(scon->chr, buf, len);

        if (ret == 0) {

            /* a pty doesn't seem to be connected - no error */

            len = 0;

        } else if (ret == -EAGAIN || (ret > 0 && ret < len)) {

            len -= ret;

            buf_offset += ret;

        } else {

            len = 0;

        }

    }



    return ret;

}



static int process_mdb(SCLPEvent *event, MDBO *mdbo)

{

    int rc;

    int len;

    uint8_t buffer[SIZE_BUFFER];



    len = be16_to_cpu(mdbo->length);

    len -= sizeof(mdbo->length) + sizeof(mdbo->type)

            + sizeof(mdbo->mto.line_type_flags)

            + sizeof(mdbo->mto.alarm_control)

            + sizeof(mdbo->mto._reserved);



    assert(len <= SIZE_BUFFER);



    /* convert EBCDIC SCLP contents to ASCII console message */

    ascii_put(buffer, mdbo->mto.message, len);

    rc = write_console_data(event, (uint8_t *)NEWLINE, 1);

    if (rc < 0) {

        return rc;

    }

    return write_console_data(event, buffer, len);

}



static int write_event_data(SCLPEvent *event, EventBufferHeader *ebh)

{

    int len;

    int written;

    int errors = 0;

    MDBO *mdbo;

    SclpMsg *data = (SclpMsg *) ebh;

    SCLPConsoleLM *scon = DO_UPCAST(SCLPConsoleLM, event, event);



    len = be16_to_cpu(data->mdb.header.length);

    if (len < sizeof(data->mdb.header)) {

        return SCLP_RC_INCONSISTENT_LENGTHS;

    }

    len -= sizeof(data->mdb.header);



    /* first check message buffers */

    mdbo = data->mdb.mdbo;

    while (len > 0) {

        if (be16_to_cpu(mdbo->length) > len

                || be16_to_cpu(mdbo->length) == 0) {

            return SCLP_RC_INCONSISTENT_LENGTHS;

        }

        len -= be16_to_cpu(mdbo->length);

        mdbo = (void *) mdbo + be16_to_cpu(mdbo->length);

    }



    /* then execute */

    len = be16_to_cpu(data->mdb.header.length) - sizeof(data->mdb.header);

    mdbo = data->mdb.mdbo;

    while (len > 0) {

        switch (be16_to_cpu(mdbo->type)) {

        case MESSAGE_TEXT:

            /* message text object */

            written = process_mdb(event, mdbo);

            if (written < 0) {

                /* character layer error */

                errors++;

            }

            break;

        default: /* ignore */

            break;

        }

        len -= be16_to_cpu(mdbo->length);

        mdbo = (void *) mdbo + be16_to_cpu(mdbo->length);

    }

    if (errors) {

        scon->write_errors += errors;

    }

    data->header.flags = SCLP_EVENT_BUFFER_ACCEPTED;



    return SCLP_RC_NORMAL_COMPLETION;

}



static void trigger_console_data(void *opaque, int n, int level)

{

    sclp_service_interrupt(0);

}



/* functions for live migration */



static const VMStateDescription vmstate_sclplmconsole = {

    .name = "sclplmconsole",

    .version_id = 0,

    .minimum_version_id = 0,

    .minimum_version_id_old = 0,

    .fields      = (VMStateField[]) {

        VMSTATE_BOOL(event.event_pending, SCLPConsoleLM),

        VMSTATE_UINT32(write_errors, SCLPConsoleLM),

        VMSTATE_UINT32(length, SCLPConsoleLM),

        VMSTATE_UINT8_ARRAY(buf, SCLPConsoleLM, SIZE_CONSOLE_BUFFER),

        VMSTATE_END_OF_LIST()

     }

};



/* qemu object creation and initialization functions */



/* tell character layer our call-back functions */



static int console_init(SCLPEvent *event)

{

    static bool console_available;



    SCLPConsoleLM *scon = DO_UPCAST(SCLPConsoleLM, event, event);



    if (console_available) {

        error_report("Multiple line-mode operator consoles are not supported");

        return -1;

    }

    console_available = true;



    if (scon->chr) {

        qemu_chr_add_handlers(scon->chr, chr_can_read, chr_read, NULL, scon);

    }

    scon->irq_console_read = *qemu_allocate_irqs(trigger_console_data, NULL, 1);



    return 0;

}



static int console_exit(SCLPEvent *event)

{

    return 0;

}



static void console_reset(DeviceState *dev)

{

   SCLPEvent *event = SCLP_EVENT(dev);

   SCLPConsoleLM *scon = DO_UPCAST(SCLPConsoleLM, event, event);



   event->event_pending = false;

   scon->length = 0;

   scon->write_errors = 0;

}



static Property console_properties[] = {

    DEFINE_PROP_CHR("chardev", SCLPConsoleLM, chr),

    DEFINE_PROP_UINT32("write_errors", SCLPConsoleLM, write_errors, 0),

    DEFINE_PROP_BOOL("echo", SCLPConsoleLM, echo, true),

    DEFINE_PROP_END_OF_LIST(),

};



static void console_class_init(ObjectClass *klass, void *data)

{

    DeviceClass *dc = DEVICE_CLASS(klass);

    SCLPEventClass *ec = SCLP_EVENT_CLASS(klass);



    dc->props = console_properties;

    dc->reset = console_reset;

    dc->vmsd = &vmstate_sclplmconsole;

    ec->init = console_init;

    ec->exit = console_exit;

    ec->get_send_mask = send_mask;

    ec->get_receive_mask = receive_mask;

    ec->can_handle_event = can_handle_event;

    ec->read_event_data = read_event_data;

    ec->write_event_data = write_event_data;

}



static const TypeInfo sclp_console_info = {

    .name          = "sclplmconsole",

    .parent        = TYPE_SCLP_EVENT,

    .instance_size = sizeof(SCLPConsoleLM),

    .class_init    = console_class_init,

    .class_size    = sizeof(SCLPEventClass),

};



static void register_types(void)

{

    type_register_static(&sclp_console_info);

}



type_init(register_types)

hw/char/sclpconsole.c

+46 −42
Original line number Diff line number Diff line
@@ -31,10 +31,9 @@ typedef struct ASCIIConsoleData { 
typedef struct SCLPConsole {

    SCLPEvent event;

    CharDriverState *chr;

    /* io vector                                                       */

    uint8_t *iov;           /* iov buffer pointer                      */

    uint8_t *iov_sclp;      /* pointer to SCLP read offset             */

    uint8_t *iov_bs;        /* pointer byte stream read offset         */

    uint8_t iov[SIZE_BUFFER_VT220];

    uint32_t iov_sclp;      /* offset in buf for SCLP read operation       */

    uint32_t iov_bs;        /* offset in buf for char layer read operation */

    uint32_t iov_data_len;  /* length of byte stream in buffer             */

    uint32_t iov_sclp_rest; /* length of byte stream not read via SCLP     */

    qemu_irq irq_read_vt220;
@@ -47,7 +46,7 @@ static int chr_can_read(void *opaque) 
{

    SCLPConsole *scon = opaque;



    return scon->iov ? SIZE_BUFFER_VT220 - scon->iov_data_len : 0;

    return SIZE_BUFFER_VT220 - scon->iov_data_len;

}



/* Receive n bytes from character layer, save in iov buffer,
@@ -55,13 +54,11 @@ static int chr_can_read(void *opaque) 
static void receive_from_chr_layer(SCLPConsole *scon, const uint8_t *buf,

                                   int size)

{

    assert(scon->iov);



    /* read data must fit into current buffer */

    assert(size <= SIZE_BUFFER_VT220 - scon->iov_data_len);



    /* put byte-stream from character layer into buffer */

    memcpy(scon->iov_bs, buf, size);

    memcpy(&scon->iov[scon->iov_bs], buf, size);

    scon->iov_data_len += size;

    scon->iov_sclp_rest += size;

    scon->iov_bs += size;
@@ -80,34 +77,11 @@ static void chr_read(void *opaque, const uint8_t *buf, int size) 
    qemu_irq_raise(scon->irq_read_vt220);

}



static void chr_event(void *opaque, int event)

{

    SCLPConsole *scon = opaque;



    switch (event) {

    case CHR_EVENT_OPENED:

        if (!scon->iov) {

            scon->iov = g_malloc0(SIZE_BUFFER_VT220);

            scon->iov_sclp = scon->iov;

            scon->iov_bs = scon->iov;

            scon->iov_data_len = 0;

            scon->iov_sclp_rest = 0;

        }

        break;

    case CHR_EVENT_CLOSED:

        if (scon->iov) {

            g_free(scon->iov);

            scon->iov = NULL;

        }

        break;

    }

}



/* functions to be called by event facility */



static int event_type(void)

static bool can_handle_event(uint8_t type)

{

    return SCLP_EVENT_ASCII_CONSOLE_DATA;

    return type == SCLP_EVENT_ASCII_CONSOLE_DATA;

}



static unsigned int send_mask(void)
@@ -134,17 +108,17 @@ static void get_console_data(SCLPEvent *event, uint8_t *buf, size_t *size, 
    /* if all data fit into provided SCLP buffer */

    if (avail >= cons->iov_sclp_rest) {

        /* copy character byte-stream to SCLP buffer */

        memcpy(buf, cons->iov_sclp, cons->iov_sclp_rest);

        memcpy(buf, &cons->iov[cons->iov_sclp], cons->iov_sclp_rest);

        *size = cons->iov_sclp_rest + 1;

        cons->iov_sclp = cons->iov;

        cons->iov_bs = cons->iov;

        cons->iov_sclp = 0;

        cons->iov_bs = 0;

        cons->iov_data_len = 0;

        cons->iov_sclp_rest = 0;

        event->event_pending = false;

        /* data provided and no more data pending */

    } else {

        /* if provided buffer is too small, just copy part */

        memcpy(buf, cons->iov_sclp, avail);

        memcpy(buf, &cons->iov[cons->iov_sclp], avail);

        *size = avail + 1;

        cons->iov_sclp_rest -= avail;

        cons->iov_sclp += avail;
@@ -223,9 +197,26 @@ static void trigger_ascii_console_data(void *opaque, int n, int level) 
    sclp_service_interrupt(0);

}



static const VMStateDescription vmstate_sclpconsole = {

    .name = "sclpconsole",

    .version_id = 0,

    .minimum_version_id = 0,

    .minimum_version_id_old = 0,

    .fields      = (VMStateField[]) {

        VMSTATE_BOOL(event.event_pending, SCLPConsole),

        VMSTATE_UINT8_ARRAY(iov, SCLPConsole, SIZE_BUFFER_VT220),

        VMSTATE_UINT32(iov_sclp, SCLPConsole),

        VMSTATE_UINT32(iov_bs, SCLPConsole),

        VMSTATE_UINT32(iov_data_len, SCLPConsole),

        VMSTATE_UINT32(iov_sclp_rest, SCLPConsole),

        VMSTATE_END_OF_LIST()

     }

};



/* qemu object creation and initialization functions */



/* tell character layer our call-back functions */



static int console_init(SCLPEvent *event)

{

    static bool console_available;
@@ -237,10 +228,9 @@ static int console_init(SCLPEvent *event) 
        return -1;

    }

    console_available = true;

    event->event_type = SCLP_EVENT_ASCII_CONSOLE_DATA;

    if (scon->chr) {

        qemu_chr_add_handlers(scon->chr, chr_can_read,

                              chr_read, chr_event, scon);

                              chr_read, NULL, scon);

    }

    scon->irq_read_vt220 = *qemu_allocate_irqs(trigger_ascii_console_data,

                                               NULL, 1);
@@ -248,6 +238,18 @@ static int console_init(SCLPEvent *event) 
    return 0;

}



static void console_reset(DeviceState *dev)

{

   SCLPEvent *event = SCLP_EVENT(dev);

   SCLPConsole *scon = DO_UPCAST(SCLPConsole, event, event);



   event->event_pending = false;

   scon->iov_sclp = 0;

   scon->iov_bs = 0;

   scon->iov_data_len = 0;

   scon->iov_sclp_rest = 0;

}



static int console_exit(SCLPEvent *event)

{

    return 0;
@@ -264,11 +266,13 @@ static void console_class_init(ObjectClass *klass, void *data) 
    SCLPEventClass *ec = SCLP_EVENT_CLASS(klass);



    dc->props = console_properties;

    dc->reset = console_reset;

    dc->vmsd = &vmstate_sclpconsole;

    ec->init = console_init;

    ec->exit = console_exit;

    ec->get_send_mask = send_mask;

    ec->get_receive_mask = receive_mask;

    ec->event_type = event_type;

    ec->can_handle_event = can_handle_event;

    ec->read_event_data = read_event_data;

    ec->write_event_data = write_event_data;

}

hw/s390x/event-facility.c

+13 −4
Original line number Diff line number Diff line
@@ -120,7 +120,7 @@ static uint16_t handle_write_event_buf(SCLPEventFacility *ef, 
        ec = SCLP_EVENT_GET_CLASS(event);



        if (ec->write_event_data &&

            ec->event_type() == event_buf->type) {

            ec->can_handle_event(event_buf->type)) {

            rc = ec->write_event_data(event, event_buf);

            break;

        }
@@ -183,7 +183,7 @@ static uint16_t handle_sccb_read_events(SCLPEventFacility *ef, SCCB *sccb, 
{

    uint16_t rc;

    int slen;

    unsigned elen = 0;

    unsigned elen;

    BusChild *kid;

    SCLPEvent *event;

    SCLPEventClass *ec;
@@ -203,11 +203,11 @@ static uint16_t handle_sccb_read_events(SCLPEventFacility *ef, SCCB *sccb, 


        if (mask & ec->get_send_mask()) {

            if (ec->read_event_data(event, event_buf, &slen)) {

                elen = be16_to_cpu(event_buf->length);

                event_buf = (EventBufferHeader *) ((char *)event_buf + elen);

                rc = SCLP_RC_NORMAL_COMPLETION;

            }

        }

        elen = be16_to_cpu(event_buf->length);

        event_buf = (void *) event_buf + elen;

    }



    if (sccb->h.control_mask[2] & SCLP_VARIABLE_LENGTH_RESPONSE) {
@@ -338,10 +338,19 @@ static int init_event_facility(S390SCLPDevice *sdev) 
    return 0;

}



static void reset_event_facility(DeviceState *dev)

{

    S390SCLPDevice *sdev = SCLP_S390_DEVICE(dev);



    sdev->ef->receive_mask = 0;

}



static void init_event_facility_class(ObjectClass *klass, void *data)

{

    DeviceClass *dc = DEVICE_CLASS(klass);

    S390SCLPDeviceClass *k = SCLP_S390_DEVICE_CLASS(klass);



    dc->reset = reset_event_facility;

    k->init = init_event_facility;

}

hw/s390x/sclpquiesce.c

+24 −5
Original line number Diff line number Diff line
@@ -22,9 +22,9 @@ typedef struct SignalQuiesce { 
    uint8_t unit;

} QEMU_PACKED SignalQuiesce;



static int event_type(void)

static bool can_handle_event(uint8_t type)

{

    return SCLP_EVENT_SIGNAL_QUIESCE;

    return type == SCLP_EVENT_SIGNAL_QUIESCE;

}



static unsigned int send_mask(void)
@@ -65,6 +65,17 @@ static int read_event_data(SCLPEvent *event, EventBufferHeader *evt_buf_hdr, 
    return 1;

}



static const VMStateDescription vmstate_sclpquiesce = {

    .name = "sclpquiesce",

    .version_id = 0,

    .minimum_version_id = 0,

    .minimum_version_id_old = 0,

    .fields      = (VMStateField[]) {

        VMSTATE_BOOL(event_pending, SCLPEvent),

        VMSTATE_END_OF_LIST()

     }

};



typedef struct QuiesceNotifier QuiesceNotifier;



static struct QuiesceNotifier {
@@ -84,8 +95,6 @@ static void quiesce_powerdown_req(Notifier *n, void *opaque) 


static int quiesce_init(SCLPEvent *event)

{

    event->event_type = SCLP_EVENT_SIGNAL_QUIESCE;



    qn.notifier.notify = quiesce_powerdown_req;

    qn.event = event;
@@ -94,15 +103,25 @@ static int quiesce_init(SCLPEvent *event) 
    return 0;

}



static void quiesce_reset(DeviceState *dev)

{

   SCLPEvent *event = SCLP_EVENT(dev);



   event->event_pending = false;

}



static void quiesce_class_init(ObjectClass *klass, void *data)

{

    DeviceClass *dc = DEVICE_CLASS(klass);

    SCLPEventClass *k = SCLP_EVENT_CLASS(klass);



    dc->reset = quiesce_reset;

    dc->vmsd = &vmstate_sclpquiesce;

    k->init = quiesce_init;



    k->get_send_mask = send_mask;

    k->get_receive_mask = receive_mask;

    k->event_type = event_type;

    k->can_handle_event = can_handle_event;

    k->read_event_data = read_event_data;

    k->write_event_data = NULL;

}