From 873d57abbaa2225b66d0c54b5040242e749ddf28 Mon Sep 17 00:00:00 2001 From: Juergen Gross Date: Tue, 22 Nov 2016 07:10:56 +0100 Subject: 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: Juergen Gross Reviewed-by: Stefano Stabellini Signed-off-by: Stefano Stabellini --- hw/xen/xen_backend.c | 19 ++++++++++++++++--- include/hw/xen/xen_backend.h | 4 ++++ 2 files changed, 20 insertions(+), 3 deletions(-) diff --git a/hw/xen/xen_backend.c b/hw/xen/xen_backend.c index 41ba5c585a..5ad3caa346 100644 --- a/hw/xen/xen_backend.c +++ b/hw/xen/xen_backend.c @@ -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 -#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) diff --git a/include/hw/xen/xen_backend.h b/include/hw/xen/xen_backend.h index cbda40ee53..38f730ef6e 100644 --- a/include/hw/xen/xen_backend.h +++ b/include/hw/xen/xen_backend.h @@ -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); -- cgit v1.2.3