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Re: [Qemu-devel] [PATCH v2 1/4] xen: add an own bus for xen backend devi
From: |
Stefano Stabellini |
Subject: |
Re: [Qemu-devel] [PATCH v2 1/4] xen: add an own bus for xen backend devices |
Date: |
Fri, 18 Nov 2016 20:34:12 -0800 (PST) |
User-agent: |
Alpine 2.10 (DEB 1266 2009-07-14) |
On Wed, 2 Nov 2016, Juergen Gross wrote:
> 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 <address@hidden>
Reviewed-by: Stefano Stabellini <address@hidden>
> 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 41ba5c5..5ad3caa 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 <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)
> diff --git a/include/hw/xen/xen_backend.h b/include/hw/xen/xen_backend.h
> index cbda40e..38f730e 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);
> --
> 2.6.6
>
- [Qemu-devel] [PATCH v2 0/4] xed: add qdevs for each backend, correct pvUSB, Juergen Gross, 2016/11/02
- [Qemu-devel] [PATCH v2 3/4] xen: create qdev for each backend device, Juergen Gross, 2016/11/02
- [Qemu-devel] [PATCH v2 2/4] qdev: add function qdev_set_id(), Juergen Gross, 2016/11/02
- [Qemu-devel] [PATCH v2 1/4] xen: add an own bus for xen backend devices, Juergen Gross, 2016/11/02
- Re: [Qemu-devel] [PATCH v2 1/4] xen: add an own bus for xen backend devices,
Stefano Stabellini <=
- [Qemu-devel] [PATCH v2 4/4] xen: attach pvusb usb bus to backend qdev, Juergen Gross, 2016/11/02
- Re: [Qemu-devel] [PATCH v2 0/4] xed: add qdevs for each backend, correct pvUSB, Stefano Stabellini, 2016/11/21