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[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [Embedded-pv-devel] [PATCH RFC 4/6] libxl: implementation of PV event device interface
From: Pavlo Suikov <pavlo.suikov@xxxxxxxxxxxxxxx>
Touchscreen events device configuration support. Can be further
extended to support any event device whatsoever.
Signed-off-by: Pavlo Suikov <pavlo.suikov@xxxxxxxxxxxxxxx>
Signed-off-by: Iurii Konovalenko <iurii.konovalenko@xxxxxxxxxxxxxxx>
Signed-off-by: Iurii Mykhalskyi <iurii.mykhalskyi@xxxxxxxxxxxxxxx>
---
tools/libxl/libxl.c | 289 ++++++++++++++++++++++++++++++++++-
tools/libxl/libxl.h | 17 +++
tools/libxl/libxl_create.c | 39 ++++-
tools/libxl/libxl_device.c | 2 +
tools/libxl/libxl_internal.c | 4 +
tools/libxl/libxl_internal.h | 20 ++-
tools/libxl/libxl_types.idl | 21 +++
tools/libxl/libxl_types_internal.idl | 1 +
tools/libxl/libxl_utils.h | 4 +
tools/libxl/xl.h | 3 +
tools/libxl/xl_cmdimpl.c | 170 ++++++++++++++++++++-
tools/libxl/xl_cmdtable.c | 15 ++
12 files changed, 580 insertions(+), 5 deletions(-)
diff --git a/tools/libxl/libxl.c b/tools/libxl/libxl.c
index 1426bf6..b64815e 100644
--- a/tools/libxl/libxl.c
+++ b/tools/libxl/libxl.c
@@ -5003,6 +5003,282 @@ out:
/******************************************************************************/
+int libxl__device_vevent_setdefault(libxl__gc *gc, libxl_device_vevent *vevent)
+{
+ int rc;
+ rc = libxl__resolve_domid(gc, vevent->backend_domname,
&vevent->backend_domid);
+ return rc;
+}
+
+static int libxl__device_from_vevent(libxl__gc *gc, uint32_t domid,
+ libxl_device_vevent *vevent,
+ libxl__device *device)
+{
+ device->backend_devid = vevent->devid;
+ device->backend_domid = vevent->backend_domid;
+ device->backend_kind = LIBXL__DEVICE_KIND_VEVENT;
+ device->devid = vevent->devid;
+ device->domid = domid;
+ device->kind = LIBXL__DEVICE_KIND_VEVENT;
+
+ return 0;
+}
+
+static int libxl__device_vevent_from_xs_be(libxl__gc *gc,
+ const char *be_path,
+ libxl_device_vevent *vevent)
+{
+ const char *tmp;
+ int rc;
+
+ libxl_device_vevent_init(vevent);
+
+ tmp = READ_BACKEND(gc, "device-id");
+ if (tmp)
+ vevent->devid = atoi(tmp);
+ else
+ vevent->devid = 0;
+
+ rc = 0;
+out:
+ return rc;
+}
+
+int libxl_devid_to_device_vevent(libxl_ctx *ctx, uint32_t domid,
+ int devid, libxl_device_vevent *vevent)
+{
+ GC_INIT(ctx);
+ char *dompath, *path;
+ int rc = ERROR_FAIL;
+
+ libxl_device_vevent_init(vevent);
+ dompath = libxl__xs_get_dompath(gc, domid);
+ if (!dompath)
+ goto out;
+
+ path = libxl__xs_read(gc, XBT_NULL,
+ libxl__sprintf(gc, "%s/device/vevent/%d/backend",
+ dompath, devid));
+ if (!path)
+ goto out;
+
+ rc = libxl__device_vevent_from_xs_be(gc, path, vevent);
+ if (rc) goto out;
+
+ rc = 0;
+out:
+ GC_FREE;
+ return rc;
+}
+
+void libxl__device_vevent_add(libxl__egc *egc, uint32_t domid,
+ libxl_device_vevent *vevent,
+ libxl__ao_device *aodev)
+{
+ STATE_AO_GC(aodev->ao);
+ flexarray_t *front;
+ flexarray_t *back;
+ libxl__device *device;
+ int rc;
+ xs_transaction_t t = XBT_NULL;
+ libxl_domain_config d_config;
+ libxl_device_vevent vevent_saved;
+ libxl__domain_userdata_lock *lock = NULL;
+
+ libxl_domain_config_init(&d_config);
+ libxl_device_vevent_init(&vevent_saved);
+ libxl_device_vevent_copy(CTX, &vevent_saved, vevent);
+
+ rc = libxl__device_vevent_setdefault(gc, vevent);
+ if (rc) goto out;
+
+ front = flexarray_make(gc, 16, 1);
+ back = flexarray_make(gc, 16, 1);
+ if (vevent->devid == -1) {
+ if ((vevent->devid = libxl__device_nextid(gc, domid, "vevent")) < 0) {
+ rc = ERROR_FAIL;
+ goto out;
+ }
+ }
+
+ libxl__update_config_vevent(gc, &vevent_saved, vevent);
+
+ GCNEW(device);
+ rc = libxl__device_from_vevent(gc, domid, vevent, device);
+ if ( rc != 0 ) goto out;
+
+ flexarray_append(back, "feature-abs-pointer");
+ flexarray_append(back, libxl__sprintf(gc, "%d",
vevent->feature_abs_pointer));
+ flexarray_append(back, "abs-width");
+ flexarray_append(back, libxl__sprintf(gc, "%d", vevent->abs_width));
+ flexarray_append(back, "abs-height");
+ flexarray_append(back, libxl__sprintf(gc, "%d", vevent->abs_height));
+ flexarray_append(back, "frontend-id");
+ flexarray_append(back, libxl__sprintf(gc, "%d", domid));
+ flexarray_append(back, "online");
+ flexarray_append(back, "1");
+ flexarray_append(back, "state");
+ flexarray_append(back, libxl__sprintf(gc, "%d", 1));
+
+ flexarray_append(front, "device-id");
+ flexarray_append(front, GCSPRINTF("%d", vevent->devid));
+ flexarray_append(front, "backend-id");
+ flexarray_append(front, libxl__sprintf(gc, "%d", vevent->backend_domid));
+ flexarray_append(front, "state");
+ flexarray_append(front, libxl__sprintf(gc, "%d", 1));
+
+ if (aodev->update_json) {
+ lock = libxl__lock_domain_userdata(gc, domid);
+ if (!lock) {
+ rc = ERROR_LOCK_FAIL;
+ goto out;
+ }
+
+ rc = libxl__get_domain_configuration(gc, domid, &d_config);
+ LOG(INFO, "aodev updates JSON, libxl__get_domain_configuration
returned %d", rc);
+ if (rc) goto out;
+
+ DEVICE_ADD(vevent, vevents, domid, &vevent_saved, COMPARE_DEVID,
&d_config);
+ }
+
+ for (;;) {
+ rc = libxl__xs_transaction_start(gc, &t);
+ if (rc) goto out;
+
+ rc = libxl__device_exists(gc, t, device);
+ if (rc < 0) goto out;
+ if (rc == 1) { /* already exists in xenstore */
+ LOG(ERROR, "device already exists in xenstore");
+ aodev->action = LIBXL__DEVICE_ACTION_ADD; /* for error message */
+ rc = ERROR_DEVICE_EXISTS;
+ goto out;
+ }
+
+ if (aodev->update_json) {
+ rc = libxl__set_domain_configuration(gc, domid, &d_config);
+ if (rc) goto out;
+ }
+
+ libxl__device_generic_add(gc, t, device,
+ libxl__xs_kvs_of_flexarray(gc, back,
+ back->count),
+ libxl__xs_kvs_of_flexarray(gc, front,
+ front->count),
+ NULL);
+
+ rc = libxl__xs_transaction_commit(gc, &t);
+
+ if (!rc) break;
+ if (rc < 0) goto out;
+ }
+
+ aodev->dev = device;
+ aodev->action = LIBXL__DEVICE_ACTION_ADD;
+ libxl__wait_device_connection(egc, aodev);
+
+ rc = 0;
+out:
+ libxl__xs_transaction_abort(gc, &t);
+ if (lock) libxl__unlock_domain_userdata(lock);
+ libxl_device_vevent_dispose(&vevent_saved);
+ libxl_domain_config_dispose(&d_config);
+ aodev->rc = rc;
+ if(rc) aodev->callback(egc, aodev);
+ return;
+}
+
+libxl_device_vevent *libxl_device_vevent_list(libxl_ctx *ctx, uint32_t domid,
int *num)
+{
+ GC_INIT(ctx);
+
+ libxl_device_vevent* vevents = NULL;
+ char* fe_path = NULL;
+ char** dir = NULL;
+ unsigned int ndirs = 0;
+
+ *num = 0;
+
+ fe_path = libxl__sprintf(gc, "%s/device/vevent", libxl__xs_get_dompath(gc,
domid));
+ dir = libxl__xs_directory(gc, XBT_NULL, fe_path, &ndirs);
+ if (dir && ndirs) {
+ vevents = malloc(sizeof(*vevents) * ndirs);
+ libxl_device_vevent* vevent;
+ libxl_device_vevent* end = vevents + ndirs;
+ for(vevent = vevents; vevent < end; ++vevent, ++dir) {
+ char* tmp;
+
+ libxl_device_vevent_init(vevent);
+
+ vevent->devid = atoi(*dir);
+
+ tmp = libxl__xs_read(gc, XBT_NULL,
+ GCSPRINTF("%s/%s/backend-id",
+ fe_path, *dir));
+ vevent->backend_domid = atoi(tmp);
+ }
+ }
+ *num = ndirs;
+
+ GC_FREE;
+ return vevents;
+}
+
+int libxl_device_vevent_getinfo(libxl_ctx *ctx, uint32_t domid,
libxl_device_vevent *vevent, libxl_veventinfo *veventinfo)
+{
+ GC_INIT(ctx);
+ char *dompath, *veventpath;
+ char *val;
+ int rc = 0;
+
+ libxl_veventinfo_init(veventinfo);
+ dompath = libxl__xs_get_dompath(gc, domid);
+ veventinfo->devid = vevent->devid;
+
+ veventpath = GCSPRINTF("%s/device/vevent/%d", dompath, veventinfo->devid);
+ veventinfo->backend = xs_read(ctx->xsh, XBT_NULL,
+ GCSPRINTF("%s/backend", veventpath), NULL);
+
+ if (!veventinfo->backend) {
+ goto err;
+ }
+
+ if(!libxl__xs_read(gc, XBT_NULL, veventinfo->backend)) {
+ goto err;
+ }
+
+ val = libxl__xs_read(gc, XBT_NULL,
+ GCSPRINTF("%s/backend-id", veventpath));
+ veventinfo->backend_id = val ? strtoul(val, NULL, 10) : -1;
+
+ val = libxl__xs_read(gc, XBT_NULL,
+ GCSPRINTF("%s/state", veventpath));
+ veventinfo->state = val ? strtoul(val, NULL, 10) : -1;
+
+ val = libxl__xs_read(gc, XBT_NULL,
+ GCSPRINTF("%s/event-channel", veventpath));
+ veventinfo->evtch = val ? strtoul(val, NULL, 10) : -1;
+
+ val = libxl__xs_read(gc, XBT_NULL,
+ GCSPRINTF("%s/ring-ref", veventpath));
+ veventinfo->rref = val ? strtoul(val, NULL, 10) : -1;
+
+ veventinfo->frontend = xs_read(ctx->xsh, XBT_NULL,
+ GCSPRINTF("%s/frontend", veventinfo->backend), NULL);
+
+ val = libxl__xs_read(gc, XBT_NULL,
+ GCSPRINTF("%s/frontend-id", veventinfo->backend));
+ veventinfo->frontend_id = val ? strtoul(val, NULL, 10) : -1;
+
+ goto exit;
+err:
+ rc = ERROR_FAIL;
+exit:
+ GC_FREE;
+ return rc;
+}
+
+/******************************************************************************/
+
/* Macro for defining device remove/destroy functions in a compact way */
/* The following functions are defined:
* libxl_device_disk_remove
@@ -5021,6 +5297,8 @@ out:
* libxl_device_vsnd_destroy
* libxl_device_vtty_remove
* libxl_device_vtty_destroy
+ * libxl_device_vevent_remove
+ * libxl_device_vevent_destroy
*/
#define DEFINE_DEVICE_REMOVE(type, removedestroy, f) \
int libxl_device_##type##_##removedestroy(libxl_ctx *ctx, \
@@ -5064,7 +5342,6 @@ DEFINE_DEVICE_REMOVE(vkb, remove, 0)
DEFINE_DEVICE_REMOVE(vkb, destroy, 1)
/* vfb */
-
DEFINE_DEVICE_REMOVE(vfb, remove, 0)
DEFINE_DEVICE_REMOVE(vfb, destroy, 1)
@@ -5084,6 +5361,10 @@ DEFINE_DEVICE_REMOVE(vsnd, destroy, 1)
DEFINE_DEVICE_REMOVE(vtty, remove, 0)
DEFINE_DEVICE_REMOVE(vtty, destroy, 1)
+/* vevent */
+DEFINE_DEVICE_REMOVE(vevent, remove, 0)
+DEFINE_DEVICE_REMOVE(vevent, destroy, 1)
+
/* channel/console hotunplug is not implemented. There are 2 possibilities:
* 1. add support for secondary consoles to xenconsoled
* 2. dynamically add/remove qemu chardevs via qmp messages. */
@@ -5100,6 +5381,7 @@ DEFINE_DEVICE_REMOVE(vtty, destroy, 1)
* libxl_device_vrtc_add
* libxl_device_vsnd_add
* libxl_device_vtty_add
+ * libxl_device_vevent_add
*/
#define DEFINE_DEVICE_ADD(type) \
@@ -5140,6 +5422,9 @@ DEFINE_DEVICE_ADD(vsnd)
/* vtty */
DEFINE_DEVICE_ADD(vtty)
+/* vevent */
+DEFINE_DEVICE_ADD(vevent)
+
#undef DEFINE_DEVICE_ADD
/******************************************************************************/
@@ -7663,6 +7948,8 @@ int libxl_retrieve_domain_configuration(libxl_ctx *ctx,
uint32_t domid,
MERGE(vtty, vttys, COMPARE_DEVID, {});
+ MERGE(vevent, vevents, COMPARE_DEVID, {});
+
/* Take care of removable device. We maintain invariant in the
* insert / remove operation so that:
* 1. if xenstore is "empty" while JSON is not, the result
diff --git a/tools/libxl/libxl.h b/tools/libxl/libxl.h
index 47829dd..7799374 100644
--- a/tools/libxl/libxl.h
+++ b/tools/libxl/libxl.h
@@ -1511,6 +1511,23 @@ int libxl_device_vfb_destroy(libxl_ctx *ctx, uint32_t
domid,
const libxl_asyncop_how *ao_how)
LIBXL_EXTERNAL_CALLERS_ONLY;
+/* Event device (e.g. touchscreen) */
+int libxl_device_vevent_add(libxl_ctx *ctx, uint32_t domid,
libxl_device_vevent *vevent,
+ const libxl_asyncop_how *ao_how)
+ LIBXL_EXTERNAL_CALLERS_ONLY;
+int libxl_device_vevent_remove(libxl_ctx *ctx, uint32_t domid,
+ libxl_device_vevent *vevent,
+ const libxl_asyncop_how *ao_how)
+ LIBXL_EXTERNAL_CALLERS_ONLY;
+int libxl_device_vevent_destroy(libxl_ctx *ctx, uint32_t domid,
+ libxl_device_vevent *vevent,
+ const libxl_asyncop_how *ao_how)
+ LIBXL_EXTERNAL_CALLERS_ONLY;
+
+libxl_device_vevent *libxl_device_vevent_list(libxl_ctx *ctx, uint32_t domid,
int *num);
+int libxl_device_vevent_getinfo(libxl_ctx *ctx, uint32_t domid,
+ libxl_device_vevent *vevent, libxl_veventinfo
*veventinfo);
+
/* PCI Passthrough */
int libxl_device_pci_add(libxl_ctx *ctx, uint32_t domid,
libxl_device_pci *pcidev,
diff --git a/tools/libxl/libxl_create.c b/tools/libxl/libxl_create.c
index 38d9b12..1752499 100644
--- a/tools/libxl/libxl_create.c
+++ b/tools/libxl/libxl_create.c
@@ -740,6 +740,8 @@ static void domcreate_attach_vttys(libxl__egc *egc,
libxl__multidev *multidev,
int ret);
static void domcreate_attach_vsnds(libxl__egc *egc, libxl__multidev *multidev,
int ret);
+static void domcreate_attach_vevents(libxl__egc *egc, libxl__multidev
*multidev,
+ int ret);
static void domcreate_attach_pci(libxl__egc *egc, libxl__multidev *aodevs,
int ret);
static void domcreate_attach_dtdev(libxl__egc *egc,
@@ -1497,12 +1499,45 @@ static void domcreate_attach_vsnds(libxl__egc *egc,
if (d_config->num_vsnds > 0) {
/* Attach vsnds */
libxl__multidev_begin(ao, &dcs->multidev);
- dcs->multidev.callback = domcreate_attach_pci;
+ dcs->multidev.callback = domcreate_attach_vevents;
libxl__add_vsnds(egc, ao, domid, d_config, &dcs->multidev);
libxl__multidev_prepared(egc, &dcs->multidev, 0);
return;
}
+ domcreate_attach_vevents(egc, multidev, 0);
+ return;
+
+error_out:
+ assert(ret);
+ domcreate_complete(egc, dcs, ret);
+}
+
+static void domcreate_attach_vevents(libxl__egc *egc,
+ libxl__multidev *multidev,
+ int ret)
+{
+ libxl__domain_create_state *dcs = CONTAINER_OF(multidev, *dcs, multidev);
+ STATE_AO_GC(dcs->ao);
+ int domid = dcs->guest_domid;
+
+ libxl_domain_config* const d_config = dcs->guest_config;
+
+ if(ret) {
+ LOG(ERROR, "unable to add vsnd devices");
+ goto error_out;
+ }
+
+ /* Plug vevent devices */
+ if (d_config->num_vevents > 0) {
+ /* Attach vevents */
+ libxl__multidev_begin(ao, &dcs->multidev);
+ dcs->multidev.callback = domcreate_attach_pci;
+ libxl__add_vevents(egc, ao, domid, d_config, &dcs->multidev);
+ libxl__multidev_prepared(egc, &dcs->multidev, 0);
+ return;
+ }
+
domcreate_attach_pci(egc, multidev, 0);
return;
@@ -1524,7 +1559,7 @@ static void domcreate_attach_pci(libxl__egc *egc,
libxl__multidev *multidev,
libxl_domain_config *const d_config = dcs->guest_config;
if (ret) {
- LOG(ERROR, "unable to add vsnd devices");
+ LOG(ERROR, "unable to add vevent devices");
goto error_out;
}
diff --git a/tools/libxl/libxl_device.c b/tools/libxl/libxl_device.c
index df50fdb..65569e1 100644
--- a/tools/libxl/libxl_device.c
+++ b/tools/libxl/libxl_device.c
@@ -547,6 +547,7 @@ void libxl__multidev_prepared(libxl__egc *egc,
* libxl__add_vrtcs
* libxl__add_vsnds
* libxl__add_vttys
+ * libxl__add_vevents
*/
#define DEFINE_DEVICES_ADD(type) \
@@ -569,6 +570,7 @@ DEFINE_DEVICES_ADD(vtpm)
DEFINE_DEVICES_ADD(vrtc)
DEFINE_DEVICES_ADD(vsnd)
DEFINE_DEVICES_ADD(vtty)
+DEFINE_DEVICES_ADD(vevent)
#undef DEFINE_DEVICES_ADD
diff --git a/tools/libxl/libxl_internal.c b/tools/libxl/libxl_internal.c
index f75840d..32ce8bd 100644
--- a/tools/libxl/libxl_internal.c
+++ b/tools/libxl/libxl_internal.c
@@ -551,6 +551,10 @@ void libxl__update_domain_configuration(libxl__gc *gc,
for (i = 0; i < src->num_vsnds; i++)
libxl__update_config_vsnd(gc, &dst->vsnds[i], &src->vsnds[i]);
+ /* update vevent information */
+ for (i = 0; i < src->num_vevents; i++)
+ libxl__update_config_vevent(gc, &dst->vevents[i], &src->vevents[i]);
+
/* update guest UUID */
libxl_uuid_copy(CTX, &dst->c_info.uuid, &src->c_info.uuid);
diff --git a/tools/libxl/libxl_internal.h b/tools/libxl/libxl_internal.h
index 1bacc73..330d56f 100644
--- a/tools/libxl/libxl_internal.h
+++ b/tools/libxl/libxl_internal.h
@@ -479,7 +479,8 @@ typedef struct {
(dev)->backend_kind == LIBXL__DEVICE_KIND_VKBD || \
(dev)->backend_kind == LIBXL__DEVICE_KIND_VRTC || \
(dev)->backend_kind == LIBXL__DEVICE_KIND_VSND || \
- (dev)->backend_kind == LIBXL__DEVICE_KIND_VTTY)
+ (dev)->backend_kind == LIBXL__DEVICE_KIND_VTTY || \
+ (dev)->backend_kind == LIBXL__DEVICE_KIND_VEVENT)
#define XC_PCI_BDF "0x%x, 0x%x, 0x%x, 0x%x"
#define PCI_DEVFN(slot, func) ((((slot) & 0x1f) << 3) | ((func) & 0x07))
@@ -1193,6 +1194,7 @@ _hidden int libxl__device_vrtc_setdefault(libxl__gc *gc,
libxl_device_vrtc *vrtc
_hidden int libxl__device_vsnd_setdefault(libxl__gc *gc, libxl_device_vsnd
*vsnd);
_hidden int libxl__device_vtty_setdefault(libxl__gc *gc, libxl_device_vtty
*vtty);
_hidden int libxl__device_vfb_setdefault(libxl__gc *gc, libxl_device_vfb *vfb);
+_hidden int libxl__device_vevent_setdefault(libxl__gc *gc, libxl_device_vevent
*vevent);
_hidden int libxl__device_vkb_setdefault(libxl__gc *gc, libxl_device_vkb *vkb);
_hidden int libxl__device_pci_setdefault(libxl__gc *gc, libxl_device_pci *pci);
_hidden void libxl__rdm_setdefault(libxl__gc *gc,
@@ -2594,6 +2596,11 @@ _hidden int libxl__device_vkb_add(libxl__gc *gc,
uint32_t domid,
_hidden int libxl__device_vfb_add(libxl__gc *gc, uint32_t domid,
libxl_device_vfb *vfb);
+/* AO operation to connect a vevent device */
+_hidden void libxl__device_vevent_add(libxl__egc *egc, uint32_t domid,
+ libxl_device_vevent *vevent,
+ libxl__ao_device *aodev);
+
/* Waits for the passed device to reach state XenbusStateInitWait.
* This is not really useful by itself, but is important when executing
* hotplug scripts, since we need to be sure the device is in the correct
@@ -3313,6 +3320,10 @@ _hidden void libxl__add_vttys(libxl__egc *egc, libxl__ao
*ao, uint32_t domid,
_hidden void libxl__add_vsnds(libxl__egc *egc, libxl__ao *ao, uint32_t domid,
libxl_domain_config *d_config,
libxl__multidev *multidev);
+
+_hidden void libxl__add_vevents(libxl__egc *egc, libxl__ao *ao, uint32_t domid,
+ libxl_domain_config *d_config,
+ libxl__multidev *multidev);
/*----- device model creation -----*/
/* First layer; wraps libxl__spawn_spawn. */
@@ -3983,6 +3994,13 @@ static inline void libxl__update_config_vsnd(libxl__gc
*gc,
dst->devid = src->devid;
}
+static inline void libxl__update_config_vevent(libxl__gc *gc,
+ libxl_device_vevent *dst,
+ libxl_device_vevent *src)
+{
+ dst->devid = src->devid;
+}
+
/* Macros used to compare device identifier. Returns true if the two
* devices have same identifier. */
#define COMPARE_DEVID(a, b) ((a)->devid == (b)->devid)
diff --git a/tools/libxl/libxl_types.idl b/tools/libxl/libxl_types.idl
index 4477297..23fcf50 100644
--- a/tools/libxl/libxl_types.idl
+++ b/tools/libxl/libxl_types.idl
@@ -538,6 +538,15 @@ libxl_device_vfb = Struct("device_vfb", [
("keymap", string),
])
+libxl_device_vevent = Struct("device_vevent", [
+ ("backend_domid", libxl_domid),
+ ("backend_domname", string),
+ ("devid", libxl_devid),
+ ("feature_abs_pointer", integer),
+ ("abs_width", integer),
+ ("abs_height", integer),
+ ])
+
libxl_device_vkb = Struct("device_vkb", [
("backend_domid", libxl_domid),
("backend_domname", string),
@@ -663,6 +672,7 @@ libxl_domain_config = Struct("domain_config", [
("rdms", Array(libxl_device_rdm, "num_rdms")),
("dtdevs", Array(libxl_device_dtdev, "num_dtdevs")),
("vfbs", Array(libxl_device_vfb, "num_vfbs")),
+ ("vevents", Array(libxl_device_vevent, "num_vevents")),
("vkbs", Array(libxl_device_vkb, "num_vkbs")),
("vtpms", Array(libxl_device_vtpm, "num_vtpms")),
("vrtcs", Array(libxl_device_vrtc, "num_vrtcs")),
@@ -746,6 +756,17 @@ libxl_vttyinfo = Struct("vttyinfo", [
("rref", integer),
], dir=DIR_OUT)
+libxl_veventinfo = Struct("veventinfo", [
+ ("backend", string),
+ ("backend_id", uint32),
+ ("frontend", string),
+ ("frontend_id", uint32),
+ ("devid", libxl_devid),
+ ("state", integer),
+ ("evtch", integer),
+ ("rref", integer),
+ ], dir=DIR_OUT)
+
libxl_vcpuinfo = Struct("vcpuinfo", [
("vcpuid", uint32),
("cpu", uint32),
diff --git a/tools/libxl/libxl_types_internal.idl
b/tools/libxl/libxl_types_internal.idl
index 182aeee..a86325c 100644
--- a/tools/libxl/libxl_types_internal.idl
+++ b/tools/libxl/libxl_types_internal.idl
@@ -25,6 +25,7 @@ libxl__device_kind = Enumeration("device_kind", [
(9, "VRTC"),
(10, "VSND"),
(11, "VTTY"),
+ (12, "VEVENT"),
])
libxl__console_backend = Enumeration("console_backend", [
diff --git a/tools/libxl/libxl_utils.h b/tools/libxl/libxl_utils.h
index 3d47534..24a8205 100644
--- a/tools/libxl/libxl_utils.h
+++ b/tools/libxl/libxl_utils.h
@@ -86,6 +86,10 @@ int libxl_devid_to_device_vsnd(libxl_ctx *ctx, uint32_t
domid,
int libxl_devid_to_device_vtty(libxl_ctx *ctx, uint32_t domid,
int devid, libxl_device_vtty *vtty);
+int libxl_devid_to_device_vevent(libxl_ctx *ctx, uint32_t domid,
+ int devid, libxl_device_vevent *vevent);
+
+
int libxl_bitmap_alloc(libxl_ctx *ctx, libxl_bitmap *bitmap, int n_bits);
/* Allocated bimap is from malloc, libxl_bitmap_dispose() to be
* called by the application when done. */
diff --git a/tools/libxl/xl.h b/tools/libxl/xl.h
index cc990c1..905276d 100644
--- a/tools/libxl/xl.h
+++ b/tools/libxl/xl.h
@@ -91,6 +91,9 @@ int main_vsnddetach(int argc, char **argv);
int main_vttyattach(int argc, char **argv);
int main_vttylist(int argc, char **argv);
int main_vttydetach(int argc, char **argv);
+int main_veventattach(int argc, char **argv);
+int main_veventlist(int argc, char **argv);
+int main_veventdetach(int argc, char **argv);
int main_vtpmattach(int argc, char **argv);
int main_vtpmlist(int argc, char **argv);
int main_vtpmdetach(int argc, char **argv);
diff --git a/tools/libxl/xl_cmdimpl.c b/tools/libxl/xl_cmdimpl.c
index 5ac9b81..f8f9edf 100644
--- a/tools/libxl/xl_cmdimpl.c
+++ b/tools/libxl/xl_cmdimpl.c
@@ -1271,7 +1271,8 @@ static void parse_config_data(const char *config_source,
const char *buf;
long l, vcpus = 0;
XLU_Config *config;
- XLU_ConfigList *cpus, *vbds, *nics, *pcis, *cvfbs, *cpuids, *vtpms,
*vrtcs, *vttys, *vsnds;
+ XLU_ConfigList *cpus, *cpuids, *vbds, *nics, *pcis;
+ XLU_ConfigList *cvfbs, *vevents, *vtpms, *vrtcs, *vttys, *vsnds;
XLU_ConfigList *channels, *ioports, *irqs, *iomem, *viridian, *dtdevs;
int num_ioports, num_irqs, num_iomem, num_cpus, num_viridian;
int pci_power_mgmt = 0;
@@ -2195,6 +2196,61 @@ skip_vfb:
}
}
+ if (!xlu_cfg_get_list(config, "vevent", &vevents, 0, 0)) {
+ d_config->num_vevents = 0;
+ d_config->vevents = NULL;
+ while ((buf = xlu_cfg_get_listitem(vevents, d_config->num_vevents)) !=
NULL) {
+ libxl_device_vevent *vevent;
+ libxl_string_list pairs;
+ char *path = NULL;
+ int len;
+
+ vevent = ARRAY_EXTEND_INIT(d_config->vevents,
d_config->num_vevents,
+ libxl_device_vevent_init);
+
+ split_string_into_string_list(buf, ",", &pairs);
+ len = libxl_string_list_length(&pairs);
+
+ for (i = 0; i < len; i++) {
+ char *key, *key_untrimmed, *value, *value_untrimmed;
+ int rc;
+ rc = split_string_into_pair(pairs[i], "=",
+ &key_untrimmed,
+ &value_untrimmed);
+ if (rc != 0) {
+ fprintf(stderr, "failed to parse vevent configuration: %s",
+ pairs[i]);
+ exit(1);
+ }
+ trim(isspace, key_untrimmed, &key);
+ trim(isspace, value_untrimmed, &value);
+
+ if (!strcmp(key, "backendid")) {
+ vevent->backend_domid = atoi(value);
+ } else if (!strcmp(key, "backend")) {
+ replace_string(&vevent->backend_domname, value);
+ } else if (!strcmp(key, "devid")) {
+ vevent->devid = atoi(value);
+ } else if (!strcmp(key, "featureabsptr")) {
+ vevent->feature_abs_pointer = atoi(value);
+ } else if (!strcmp(key, "abswidth")) {
+ vevent->abs_width = atoi(value);
+ } else if (!strcmp(key, "absheight")) {
+ vevent->abs_height = atoi(value);
+ } else {
+ fprintf(stderr, "unknown vevent parameter '%s',"
+ " ignoring\n", key);
+ }
+ free(key);
+ free(key_untrimmed);
+ free(value);
+ free(value_untrimmed);
+ }
+ libxl_string_list_dispose(&pairs);
+ free(path);
+ }
+ }
+
if (!xlu_cfg_get_long (config, "pci_msitranslate", &l, 0))
pci_msitranslate = l;
@@ -7279,6 +7335,118 @@ int main_vttydetach(int argc, char **argv)
return rc;
}
+int main_veventattach(int argc, char **argv)
+{
+ int opt;
+ uint32_t fe_domid;
+ libxl_device_vevent vevent;
+ char *oparg;
+
+ SWITCH_FOREACH_OPT(opt, "", NULL, "vevent-attach", 1) {
+ /* No options */
+ }
+
+ if (libxl_domain_qualifier_to_domid(ctx, argv[optind], &fe_domid) < 0) {
+ fprintf(stderr, "%s is an invalid domain identifier\n", argv[optind]);
+ return 1;
+ }
+ optind++;
+
+ for (argv += optind+1, argc -= optind+1; argc > 0; ++argv, --argc) {
+ if (MATCH_OPTION("backend", *argv, oparg)) {
+ replace_string(&vevent.backend_domname, oparg);
+ } else if (MATCH_OPTION("devid", *argv, oparg)) {
+ vevent.devid = atoi(oparg);
+ } else {
+ fprintf(stderr, "unrecognized argument `%s'\n", *argv);
+ return 1;
+ }
+ }
+
+ if (dryrun_only) {
+ char *json = libxl_device_vevent_to_json(ctx, &vevent);
+ printf("vevent: %s\n", json);
+ free(json);
+ if (ferror(stdout) || fflush(stdout)) { perror("stdout"); exit(-1); }
+ return 0;
+ }
+
+ if (libxl_device_vevent_add(ctx, fe_domid, &vevent, 0)) {
+ fprintf(stderr, "libxl_device_vevent_add failed.\n");
+ return 1;
+ }
+
+ return 0;
+}
+
+int main_veventlist(int argc, char **argv)
+{
+ int opt;
+ int i, nb;
+ libxl_device_vevent *vevents;
+ libxl_veventinfo veventinfo;
+
+ SWITCH_FOREACH_OPT(opt, "", NULL, "vevent-list", 1) {
+ /* No options */
+ }
+
+ printf("%-5s %-3s %-6s %-5s %-6s %-8s %-40s %-40s\n",
+ "Vdev", "BE", "handle", "state", "evt-ch",
+ "ring-ref", "BE-path", "FE-path");
+ for (argv += optind, argc -= optind; argc > 0; --argc, ++argv) {
+ uint32_t domid;
+ if (libxl_domain_qualifier_to_domid(ctx, *argv, &domid) < 0) {
+ fprintf(stderr, "%s is an invalid domain identifier\n", *argv);
+ continue;
+ }
+ vevents = libxl_device_vevent_list(ctx, domid, &nb);
+ if (!vevents) {
+ continue;
+ }
+ for (i=0; i<nb; i++) {
+ if (!libxl_device_vevent_getinfo(ctx, domid, &vevents[i],
&veventinfo)) {
+ /* Vdev BE hdl st evch rref BE-path FE-path */
+ printf("%-5d %-3d %-6d %-5d %-6d %-8d %-40s %-40s\n",
+ veventinfo.devid, veventinfo.backend_id,
veventinfo.frontend_id,
+ veventinfo.state, veventinfo.evtch, veventinfo.rref,
+ veventinfo.backend, veventinfo.frontend);
+ libxl_veventinfo_dispose(&veventinfo);
+ }
+ libxl_device_vevent_dispose(&vevents[i]);
+ }
+ free(vevents);
+ }
+
+ return 0;
+}
+
+int main_veventdetach(int argc, char **argv)
+{
+ uint32_t domid, devid;
+ int opt, rc = 0;
+ libxl_device_vevent vevent;
+
+ SWITCH_FOREACH_OPT(opt, "", NULL, "vevent-detach", 2) {
+ /* No options */
+ }
+
+ domid = find_domain(argv[optind]);
+ devid = atoi(argv[optind+1]);
+
+ if (libxl_devid_to_device_vevent(ctx, domid, devid, &vevent)) {
+ fprintf(stderr, "Error: Device %s not connected.\n", argv[optind+1]);
+ return 1;
+ }
+
+ rc = libxl_device_vevent_remove(ctx, domid, &vevent, 0);
+ if (rc) {
+ fprintf(stderr, "libxl_device_vevent_remove failed.\n");
+ return 1;
+ }
+ libxl_device_vevent_dispose(&vevent);
+ return rc;
+}
+
int main_vtpmattach(int argc, char **argv)
{
int opt;
diff --git a/tools/libxl/xl_cmdtable.c b/tools/libxl/xl_cmdtable.c
index 7e3a8eb..bb410ca 100644
--- a/tools/libxl/xl_cmdtable.c
+++ b/tools/libxl/xl_cmdtable.c
@@ -401,6 +401,21 @@ struct cmd_spec cmd_table[] = {
"Destroy a domain's virtual rtc device",
"<Domain> <DevId>",
},
+ { "vevent-attach",
+ &main_veventattach, 1, 1,
+ "Create a new virtual event device",
+ "<Domain> [backend=<BackDomain>] [devid=<DeviceId>]",
+ },
+ { "vevent-list",
+ &main_veventlist, 0, 0,
+ "List virtual event devices for a domain",
+ "<Domain(s)>",
+ },
+ { "vevent-detach",
+ &main_veventdetach, 0, 1,
+ "Destroy a domain's virtual event device",
+ "<Domain> <DevId>",
+ },
{ "vtpm-attach",
&main_vtpmattach, 1, 1,
"Create a new virtual TPM device",
--
2.8.2
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