Commit 873d57ab authored by Juergen Gross's avatar Juergen Gross Committed by Stefano Stabellini
Browse files

xen: add an own bus for xen backend devices 



Add a bus for Xen backend devices in order to be able to establish a
dedicated device path for pluggable devices.

Signed-off-by: default avatarJuergen Gross <jgross@suse.com>
Reviewed-by: default avatarStefano Stabellini <sstabellini@kernel.org>
Signed-off-by: default avatarStefano Stabellini <sstabellini@kernel.org>
parent b85f9dfd

hw/xen/xen_backend.c

+16 −3
Original line number Diff line number Diff line
@@ -29,14 +29,14 @@ 
#include "hw/sysbus.h"

#include "sysemu/char.h"

#include "qemu/log.h"

#include "qapi/error.h"

#include "hw/xen/xen_backend.h"

#include "hw/xen/xen_pvdev.h"



#include <xen/grant_table.h>



#define TYPE_XENSYSDEV "xensysdev"



DeviceState *xen_sysdev;

BusState *xen_sysbus;



/* ------------------------------------------------------------- */
@@ -528,6 +528,8 @@ int xen_be_init(void) 


    xen_sysdev = qdev_create(NULL, TYPE_XENSYSDEV);

    qdev_init_nofail(xen_sysdev);

    xen_sysbus = qbus_create(TYPE_XENSYSBUS, DEVICE(xen_sysdev), "xen-sysbus");

    qbus_set_bus_hotplug_handler(xen_sysbus, &error_abort);



    return 0;
@@ -586,6 +588,15 @@ int xen_be_bind_evtchn(struct XenDevice *xendev) 
}





static const TypeInfo xensysbus_info = {

    .name       = TYPE_XENSYSBUS,

    .parent     = TYPE_BUS,

    .interfaces = (InterfaceInfo[]) {

        { TYPE_HOTPLUG_HANDLER },

        { }

    }

};



static int xen_sysdev_init(SysBusDevice *dev)

{

    return 0;
@@ -602,6 +613,7 @@ static void xen_sysdev_class_init(ObjectClass *klass, void *data) 


    k->init = xen_sysdev_init;

    dc->props = xen_sysdev_properties;

    dc->bus_type = TYPE_XENSYSBUS;

}



static const TypeInfo xensysdev_info = {
@@ -613,7 +625,8 @@ static const TypeInfo xensysdev_info = { 


static void xenbe_register_types(void)

{

    type_register_static(&xensysbus_info);

    type_register_static(&xensysdev_info);

}



type_init(xenbe_register_types);
 
type_init(xenbe_register_types)

include/hw/xen/xen_backend.h

+4 −0
Original line number Diff line number Diff line
@@ -6,12 +6,16 @@ 
#include "sysemu/sysemu.h"

#include "net/net.h"



#define TYPE_XENSYSDEV "xen-sysdev"

#define TYPE_XENSYSBUS "xen-sysbus"



/* variables */

extern xc_interface *xen_xc;

extern xenforeignmemory_handle *xen_fmem;

extern struct xs_handle *xenstore;

extern const char *xen_protocol;

extern DeviceState *xen_sysdev;

extern BusState *xen_sysbus;



int xenstore_mkdir(char *path, int p);

int xenstore_write_be_str(struct XenDevice *xendev, const char *node, const char *val);