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usb: add xen pvUSB backend, add num-ports check to ohci. 

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Merge remote-tracking branch 'remotes/kraxel/tags/pull-usb-20160523-1' into staging

usb: add xen pvUSB backend, add num-ports check to ohci.

# gpg: Signature made Mon 23 May 2016 14:02:25 BST using RSA key ID D3E87138
# gpg: Good signature from "Gerd Hoffmann (work) <kraxel@redhat.com>"
# gpg:                 aka "Gerd Hoffmann <gerd@kraxel.org>"
# gpg:                 aka "Gerd Hoffmann (private) <kraxel@gmail.com>"

* remotes/kraxel/tags/pull-usb-20160523-1:
  usb/ohci: Fix crash with when specifying too many num-ports
  xen: add pvUSB backend
  xen: write information about supported backends
  xen: introduce dummy system device

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Peter Maydell 2016-05-23 15:53:02 +01:00
parent 38629bf5e4 d400fc018b
commit 2b5f477789
8 changed files with 1206 additions and 50 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
hw/usb/Makefile.objs
View File

@ -38,3 +38,7 @@ common-obj-$(CONFIG_USB_REDIR) += redirect.o quirks.o
# usb pass-through
common-obj-y += $(patsubst %,host-%.o,$(HOST_USB))
ifeq ($(CONFIG_USB_LIBUSB),y)
common-obj-$(CONFIG_XEN_BACKEND) += xen-usb.o
endif

6
hw/usb/hcd-ohci.c
View File

@ -1848,6 +1848,12 @@ static void usb_ohci_init(OHCIState *ohci, DeviceState *dev,
ohci->as = as;
if (num_ports > OHCI_MAX_PORTS) {
error_setg(errp, "OHCI num-ports=%d is too big (limit is %d ports)",
num_ports, OHCI_MAX_PORTS);
return;
}
if (usb_frame_time == 0) {
#ifdef OHCI_TIME_WARP
usb_frame_time = NANOSECONDS_PER_SECOND;

1080
hw/usb/xen-usb.c Normal file
View File

File diff suppressed because it is too large Load Diff

63
hw/xen/xen_backend.c
View File

@ -42,11 +42,36 @@ struct xs_handle *xenstore = NULL;
const char *xen_protocol;
/* private */
struct xs_dirs {
char *xs_dir;
QTAILQ_ENTRY(xs_dirs) list;
};
static QTAILQ_HEAD(xs_dirs_head, xs_dirs) xs_cleanup =
QTAILQ_HEAD_INITIALIZER(xs_cleanup);
static QTAILQ_HEAD(XenDeviceHead, XenDevice) xendevs = QTAILQ_HEAD_INITIALIZER(xendevs);
static int debug = 0;
/* ------------------------------------------------------------- */
static void xenstore_cleanup_dir(char *dir)
{
struct xs_dirs *d;
d = g_malloc(sizeof(*d));
d->xs_dir = dir;
QTAILQ_INSERT_TAIL(&xs_cleanup, d, list);
}
void xen_config_cleanup(void)
{
struct xs_dirs *d;
QTAILQ_FOREACH(d, &xs_cleanup, list) {
xs_rm(xenstore, 0, d->xs_dir);
}
}
int xenstore_write_str(const char *base, const char *node, const char *val)
{
char abspath[XEN_BUFSIZE];
@ -75,6 +100,30 @@ char *xenstore_read_str(const char *base, const char *node)
return ret;
}
int xenstore_mkdir(char *path, int p)
{
struct xs_permissions perms[2] = {
{
.id = 0, /* set owner: dom0 */
}, {
.id = xen_domid,
.perms = p,
}
};
if (!xs_mkdir(xenstore, 0, path)) {
xen_be_printf(NULL, 0, "xs_mkdir %s: failed\n", path);
return -1;
}
xenstore_cleanup_dir(g_strdup(path));
if (!xs_set_permissions(xenstore, 0, path, perms, 2)) {
xen_be_printf(NULL, 0, "xs_set_permissions %s: failed\n", path);
return -1;
}
return 0;
}
int xenstore_write_int(const char *base, const char *node, int ival)
{
char val[12];
@ -726,6 +775,20 @@ err:
int xen_be_register(const char *type, struct XenDevOps *ops)
{
char path[50];
int rc;
if (ops->backend_register) {
rc = ops->backend_register();
if (rc) {
return rc;
}
}
snprintf(path, sizeof(path), "device-model/%u/backends/%s", xen_domid,
type);
xenstore_mkdir(path, XS_PERM_NONE);
return xenstore_scan(type, xen_domid, ops);
}

52
hw/xen/xen_devconfig.c
View File

@ -5,54 +5,6 @@
/* ------------------------------------------------------------- */
struct xs_dirs {
char *xs_dir;
QTAILQ_ENTRY(xs_dirs) list;
};
static QTAILQ_HEAD(xs_dirs_head, xs_dirs) xs_cleanup = QTAILQ_HEAD_INITIALIZER(xs_cleanup);
static void xen_config_cleanup_dir(char *dir)
{
struct xs_dirs *d;
d = g_malloc(sizeof(*d));
d->xs_dir = dir;
QTAILQ_INSERT_TAIL(&xs_cleanup, d, list);
}
void xen_config_cleanup(void)
{
struct xs_dirs *d;
QTAILQ_FOREACH(d, &xs_cleanup, list) {
xs_rm(xenstore, 0, d->xs_dir);
}
}
/* ------------------------------------------------------------- */
static int xen_config_dev_mkdir(char *dev, int p)
{
struct xs_permissions perms[2] = {{
.id = 0, /* set owner: dom0 */
},{
.id = xen_domid,
.perms = p,
}};
if (!xs_mkdir(xenstore, 0, dev)) {
xen_be_printf(NULL, 0, "xs_mkdir %s: failed\n", dev);
return -1;
}
xen_config_cleanup_dir(g_strdup(dev));
if (!xs_set_permissions(xenstore, 0, dev, perms, 2)) {
xen_be_printf(NULL, 0, "xs_set_permissions %s: failed\n", dev);
return -1;
}
return 0;
}
static int xen_config_dev_dirs(const char *ftype, const char *btype, int vdev,
char *fe, char *be, int len)
{
@ -66,8 +18,8 @@ static int xen_config_dev_dirs(const char *ftype, const char *btype, int vdev,
snprintf(be, len, "%s/backend/%s/%d/%d", dom, btype, xen_domid, vdev);
free(dom);
xen_config_dev_mkdir(fe, XS_PERM_READ | XS_PERM_WRITE);
xen_config_dev_mkdir(be, XS_PERM_READ);
xenstore_mkdir(fe, XS_PERM_READ | XS_PERM_WRITE);
xenstore_mkdir(be, XS_PERM_READ);
return 0;
}

43
hw/xenpv/xen_machine_pv.c
View File

@ -25,10 +25,15 @@
#include "qemu/osdep.h"
#include "hw/hw.h"
#include "hw/boards.h"
#include "hw/sysbus.h"
#include "hw/xen/xen_backend.h"
#include "xen_domainbuild.h"
#include "sysemu/block-backend.h"
#define TYPE_XENSYSDEV "xensysdev"
DeviceState *xen_sysdev;
static void xen_init_pv(MachineState *machine)
{
DriveInfo *dinfo;
@ -67,11 +72,17 @@ static void xen_init_pv(MachineState *machine)
break;
}
xen_sysdev = qdev_create(NULL, TYPE_XENSYSDEV);
qdev_init_nofail(xen_sysdev);
xen_be_register("console", &xen_console_ops);
xen_be_register("vkbd", &xen_kbdmouse_ops);
xen_be_register("vfb", &xen_framebuffer_ops);
xen_be_register("qdisk", &xen_blkdev_ops);
xen_be_register("qnic", &xen_netdev_ops);
#ifdef CONFIG_USB_LIBUSB
xen_be_register("qusb", &xen_usb_ops);
#endif
/* configure framebuffer */
if (xenfb_enabled) {
@ -101,6 +112,38 @@ static void xen_init_pv(MachineState *machine)
xen_init_display(xen_domid);
}
static int xen_sysdev_init(SysBusDevice *dev)
{
return 0;
}
static Property xen_sysdev_properties[] = {
{/* end of property list */},
};
static void xen_sysdev_class_init(ObjectClass *klass, void *data)
{
DeviceClass *dc = DEVICE_CLASS(klass);
SysBusDeviceClass *k = SYS_BUS_DEVICE_CLASS(klass);
k->init = xen_sysdev_init;
dc->props = xen_sysdev_properties;
}
static const TypeInfo xensysdev_info = {
.name = TYPE_XENSYSDEV,
.parent = TYPE_SYS_BUS_DEVICE,
.instance_size = sizeof(SysBusDevice),
.class_init = xen_sysdev_class_init,
};
static void xenpv_register_types(void)
{
type_register_static(&xensysdev_info);
}
type_init(xenpv_register_types);
static void xenpv_machine_init(MachineClass *mc)
{
mc->desc = "Xen Para-virtualized PC";

6
include/hw/xen/xen_backend.h
View File

@ -28,6 +28,7 @@ struct XenDevOps {
int (*free)(struct XenDevice *xendev);
void (*backend_changed)(struct XenDevice *xendev, const char *node);
void (*frontend_changed)(struct XenDevice *xendev, const char *node);
int (*backend_register)(void);
};
struct XenDevice {
@ -60,8 +61,10 @@ extern xc_interface *xen_xc;
extern xenforeignmemory_handle *xen_fmem;
extern struct xs_handle *xenstore;
extern const char *xen_protocol;
extern DeviceState *xen_sysdev;
/* xenstore helper functions */
int xenstore_mkdir(char *path, int p);
int xenstore_write_str(const char *base, const char *node, const char *val);
int xenstore_write_int(const char *base, const char *node, int ival);
int xenstore_write_int64(const char *base, const char *node, int64_t ival);
@ -98,6 +101,9 @@ extern struct XenDevOps xen_kbdmouse_ops; /* xen_framebuffer.c */
extern struct XenDevOps xen_framebuffer_ops; /* xen_framebuffer.c */
extern struct XenDevOps xen_blkdev_ops; /* xen_disk.c */
extern struct XenDevOps xen_netdev_ops; /* xen_nic.c */
#ifdef CONFIG_USB_LIBUSB
extern struct XenDevOps xen_usb_ops; /* xen-usb.c */
#endif
void xen_init_display(int domid);

2
include/hw/xen/xen_common.h
View File

@ -49,6 +49,8 @@ typedef xc_gnttab xengnttab_handle;
#define xengnttab_unmap(h, a, n) xc_gnttab_munmap(h, a, n)
#define xengnttab_map_grant_refs(h, c, d, r, p) \
xc_gnttab_map_grant_refs(h, c, d, r, p)
#define xengnttab_map_domain_grant_refs(h, c, d, r, p) \
xc_gnttab_map_domain_grant_refs(h, c, d, r, p)
#define xenforeignmemory_open(l, f) xen_xc