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[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [Xen-devel] [PATCH v4 03/13] libxl: add vdispl device
From: Oleksandr Grytsov <oleksandr_grytsov@xxxxxxxx>
Signed-off-by: Oleksandr Grytsov <oleksandr_grytsov@xxxxxxxx>
---
tools/libxl/Makefile | 2 +-
tools/libxl/libxl.h | 24 +++
tools/libxl/libxl_create.c | 1 +
tools/libxl/libxl_internal.h | 1 +
tools/libxl/libxl_types.idl | 38 ++++-
tools/libxl/libxl_types_internal.idl | 1 +
tools/libxl/libxl_utils.h | 4 +
tools/libxl/libxl_vdispl.c | 289 +++++++++++++++++++++++++++++++++++
8 files changed, 358 insertions(+), 2 deletions(-)
create mode 100644 tools/libxl/libxl_vdispl.c
diff --git a/tools/libxl/Makefile b/tools/libxl/Makefile
index 1bf6b8c..6f57e65 100644
--- a/tools/libxl/Makefile
+++ b/tools/libxl/Makefile
@@ -138,7 +138,7 @@ LIBXL_OBJS = flexarray.o libxl.o libxl_create.o libxl_dm.o
libxl_pci.o \
libxl_dom_suspend.o libxl_dom_save.o libxl_usb.o \
libxl_vtpm.o libxl_nic.o libxl_disk.o libxl_console.o \
libxl_cpupool.o libxl_mem.o libxl_sched.o libxl_tmem.o \
- libxl_9pfs.o libxl_domain.o \
+ libxl_9pfs.o libxl_domain.o libxl_vdispl.o \
$(LIBXL_OBJS-y)
LIBXL_OBJS += libxl_genid.o
LIBXL_OBJS += _libxl_types.o libxl_flask.o _libxl_types_internal.o
diff --git a/tools/libxl/libxl.h b/tools/libxl/libxl.h
index cf8687a..4c0d612 100644
--- a/tools/libxl/libxl.h
+++ b/tools/libxl/libxl.h
@@ -1851,6 +1851,30 @@ libxl_device_vtpm *libxl_device_vtpm_list(libxl_ctx
*ctx, uint32_t domid, int *n
int libxl_device_vtpm_getinfo(libxl_ctx *ctx, uint32_t domid,
libxl_device_vtpm *vtpm, libxl_vtpminfo
*vtpminfo);
+/* Virtual displays */
+int libxl_device_vdispl_add(libxl_ctx *ctx, uint32_t domid,
+ libxl_device_vdispl *displ,
+ const libxl_asyncop_how *ao_how)
+ LIBXL_EXTERNAL_CALLERS_ONLY;
+int libxl_device_vdispl_remove(libxl_ctx *ctx, uint32_t domid,
+ libxl_device_vdispl *vdispl,
+ const libxl_asyncop_how *ao_how)
+ LIBXL_EXTERNAL_CALLERS_ONLY;
+int libxl_device_vdispl_destroy(libxl_ctx *ctx, uint32_t domid,
+ libxl_device_vdispl *vdispl,
+ const libxl_asyncop_how *ao_how)
+ LIBXL_EXTERNAL_CALLERS_ONLY;
+
+libxl_device_vdispl *libxl_device_vdispl_list(libxl_ctx *ctx,
+ uint32_t domid, int *num)
+ LIBXL_EXTERNAL_CALLERS_ONLY;
+void libxl_device_vdispl_list_free(libxl_device_vdispl* list, int num)
+ LIBXL_EXTERNAL_CALLERS_ONLY;
+int libxl_device_vdispl_getinfo(libxl_ctx *ctx, uint32_t domid,
+ libxl_device_vdispl *vdispl,
+ libxl_vdisplinfo *vdisplinfo)
+ LIBXL_EXTERNAL_CALLERS_ONLY;
+
/* Keyboard */
int libxl_device_vkb_add(libxl_ctx *ctx, uint32_t domid, libxl_device_vkb *vkb,
const libxl_asyncop_how *ao_how)
diff --git a/tools/libxl/libxl_create.c b/tools/libxl/libxl_create.c
index b2163cd..912bd21 100644
--- a/tools/libxl/libxl_create.c
+++ b/tools/libxl/libxl_create.c
@@ -1443,6 +1443,7 @@ const struct libxl_device_type *device_type_tbl[] = {
&libxl__usbdev_devtype,
&libxl__pcidev_devtype,
&libxl__dtdev_devtype,
+ &libxl__vdispl_devtype,
NULL
};
diff --git a/tools/libxl/libxl_internal.h b/tools/libxl/libxl_internal.h
index 271ac89..68c08aa 100644
--- a/tools/libxl/libxl_internal.h
+++ b/tools/libxl/libxl_internal.h
@@ -3564,6 +3564,7 @@ extern const struct libxl_device_type libxl__vtpm_devtype;
extern const struct libxl_device_type libxl__usbctrl_devtype;
extern const struct libxl_device_type libxl__usbdev_devtype;
extern const struct libxl_device_type libxl__pcidev_devtype;
+extern const struct libxl_device_type libxl__vdispl_devtype;
extern const struct libxl_device_type *device_type_tbl[];
diff --git a/tools/libxl/libxl_types.idl b/tools/libxl/libxl_types.idl
index 2204425..25563cf 100644
--- a/tools/libxl/libxl_types.idl
+++ b/tools/libxl/libxl_types.idl
@@ -755,7 +755,21 @@ libxl_device_vtpm = Struct("device_vtpm", [
("backend_domname", string),
("devid", libxl_devid),
("uuid", libxl_uuid),
-])
+ ])
+
+libxl_connector_param = Struct("connector_param", [
+ ("id", string),
+ ("width", uint32),
+ ("height", uint32)
+ ])
+
+libxl_device_vdispl = Struct("device_vdispl", [
+ ("backend_domid", libxl_domid),
+ ("backend_domname", string),
+ ("devid", libxl_devid),
+ ("be_alloc", bool),
+ ("connectors", Array(libxl_connector_param, "num_connectors"))
+ ])
libxl_device_p9 = Struct("device_p9", [
("backend_domid", libxl_domid),
@@ -791,6 +805,7 @@ libxl_domain_config = Struct("domain_config", [
("vkbs", Array(libxl_device_vkb, "num_vkbs")),
("vtpms", Array(libxl_device_vtpm, "num_vtpms")),
("p9", Array(libxl_device_p9, "num_p9s")),
+ ("vdispls", Array(libxl_device_vdispl, "num_vdispls")),
# a channel manifests as a console with a name,
# see docs/misc/channels.txt
("channels", Array(libxl_device_channel, "num_channels")),
@@ -887,6 +902,27 @@ libxl_physinfo = Struct("physinfo", [
("cap_hvm_directio", bool),
], dir=DIR_OUT)
+libxl_connectorinfo = Struct("connectorinfo", [
+ ("id", string),
+ ("width", uint32),
+ ("height", uint32),
+ ("req_evtch", integer),
+ ("req_rref", integer),
+ ("evt_evtch", integer),
+ ("evt_rref", integer),
+ ], dir=DIR_OUT)
+
+libxl_vdisplinfo = Struct("vdisplinfo", [
+ ("backend", string),
+ ("backend_id", uint32),
+ ("frontend", string),
+ ("frontend_id", uint32),
+ ("devid", libxl_devid),
+ ("state", integer),
+ ("be_alloc", bool),
+ ("connectors", Array(libxl_connectorinfo, "num_connectors"))
+ ], dir=DIR_OUT)
+
# NUMA node characteristics: size and free are how much memory it has, and how
# much of it is free, respectively. dists is an array of distances from this
# node to each other node.
diff --git a/tools/libxl/libxl_types_internal.idl
b/tools/libxl/libxl_types_internal.idl
index 7dc4d0f..673a6d5 100644
--- a/tools/libxl/libxl_types_internal.idl
+++ b/tools/libxl/libxl_types_internal.idl
@@ -26,6 +26,7 @@ libxl__device_kind = Enumeration("device_kind", [
(9, "VUSB"),
(10, "QUSB"),
(11, "9PFS"),
+ (12, "VDISPL"),
])
libxl__console_backend = Enumeration("console_backend", [
diff --git a/tools/libxl/libxl_utils.h b/tools/libxl/libxl_utils.h
index 25773d8..9e743dc 100644
--- a/tools/libxl/libxl_utils.h
+++ b/tools/libxl/libxl_utils.h
@@ -78,6 +78,10 @@ int libxl_devid_to_device_vtpm(libxl_ctx *ctx, uint32_t
domid,
int devid, libxl_device_vtpm *vtpm);
int libxl_devid_to_device_usbctrl(libxl_ctx *ctx, uint32_t domid,
int devid, libxl_device_usbctrl *usbctrl);
+
+int libxl_devid_to_device_vdispl(libxl_ctx *ctx, uint32_t domid,
+ int devid, libxl_device_vdispl *vdispl);
+
int libxl_ctrlport_to_device_usbdev(libxl_ctx *ctx, uint32_t domid,
int ctrl, int port,
libxl_device_usbdev *usbdev);
diff --git a/tools/libxl/libxl_vdispl.c b/tools/libxl/libxl_vdispl.c
new file mode 100644
index 0000000..e75e797
--- /dev/null
+++ b/tools/libxl/libxl_vdispl.c
@@ -0,0 +1,289 @@
+/*
+ * Copyright (C) 2016 EPAM Systems Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published
+ * by the Free Software Foundation; version 2.1 only. with the special
+ * exception on linking described in file LICENSE.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Lesser General Public License for more details.
+ */
+
+#include "libxl_internal.h"
+
+static int libxl__device_vdispl_setdefault(libxl__gc *gc, uint32_t domid,
+ libxl_device_vdispl *vdispl,
+ bool hotplug)
+{
+ return libxl__resolve_domid(gc, vdispl->backend_domname,
+ &vdispl->backend_domid);
+}
+
+static int libxl__device_from_vdispl(libxl__gc *gc, uint32_t domid,
+ libxl_device_vdispl *vdispl,
+ libxl__device *device)
+{
+ device->backend_devid = vdispl->devid;
+ device->backend_domid = vdispl->backend_domid;
+ device->backend_kind = LIBXL__DEVICE_KIND_VDISPL;
+ device->devid = vdispl->devid;
+ device->domid = domid;
+ device->kind = LIBXL__DEVICE_KIND_VDISPL;
+
+ return 0;
+}
+
+static int libxl__vdispl_from_xenstore(libxl__gc *gc, const char *libxl_path,
+ libxl_devid devid,
+ libxl_device_vdispl *vdispl)
+{
+ char *be_path;
+
+ vdispl->devid = devid;
+ be_path = libxl__xs_read(gc, XBT_NULL, GCSPRINTF("%s/backend",
libxl_path));
+
+ return libxl__backendpath_parse_domid(gc, be_path, &vdispl->backend_domid);
+}
+
+static void libxl__update_config_vdispl(libxl__gc *gc,
+ libxl_device_vdispl *dst,
+ libxl_device_vdispl *src)
+{
+ dst->devid = src->devid;
+ dst->be_alloc = src->be_alloc;
+}
+
+static int libxl_device_vdispl_compare(libxl_device_vdispl *d1,
+ libxl_device_vdispl *d2)
+{
+ return COMPARE_DEVID(d1, d2);
+}
+
+static void libxl__device_vdispl_add(libxl__egc *egc, uint32_t domid,
+ libxl_device_vdispl *vdispl,
+ libxl__ao_device *aodev)
+{
+ libxl__device_add_async(egc, domid, &libxl__vdispl_devtype, vdispl, aodev);
+}
+
+static int libxl__set_xenstore_vdispl(libxl__gc *gc, uint32_t domid,
+ libxl_device_vdispl *vdispl,
+ flexarray_t *back, flexarray_t *front,
+ flexarray_t *ro_front)
+{
+ int i;
+
+ flexarray_append_pair(ro_front, "be-alloc",
+ GCSPRINTF("%d", vdispl->be_alloc));
+
+ for (i = 0; i < vdispl->num_connectors; i++) {
+ flexarray_append_pair(ro_front, GCSPRINTF("%d/resolution", i),
+ GCSPRINTF("%dx%d", vdispl->connectors[i].width,
+
vdispl->connectors[i].height));
+ flexarray_append_pair(ro_front, GCSPRINTF("%d/id", i),
+ vdispl->connectors[i].id);
+ }
+
+ return 0;
+}
+
+libxl_device_vdispl *libxl_device_vdispl_list(libxl_ctx *ctx, uint32_t domid,
+ int *num)
+{
+ libxl_device_vdispl *r;
+
+ GC_INIT(ctx);
+
+ r = libxl__device_list(gc, &libxl__vdispl_devtype, domid, "vdispl", num);
+
+ GC_FREE;
+
+ return r;
+}
+
+void libxl_device_vdispl_list_free(libxl_device_vdispl* list, int num)
+{
+ libxl__device_list_free(&libxl__vdispl_devtype, list, num);
+}
+
+static int libxl__device_vdispl_getconnectors(libxl_ctx *ctx,
+ const char *path,
+ libxl_vdisplinfo *info)
+{
+ GC_INIT(ctx);
+ char *connector = NULL;
+ char *connector_path = NULL;
+ int i, rc;
+
+ GCNEW_ARRAY(connector_path, 128);
+
+ info->num_connectors = 0;
+
+ rc = snprintf(connector_path, 128, "%s/%d", path, info->num_connectors);
+ if (rc < 0) goto out;
+
+ while((connector = xs_read(ctx->xsh, XBT_NULL, connector_path, NULL))
+ != NULL) {
+ free(connector);
+
+ rc = snprintf(connector_path, 128, "%s/%d",
+ path, ++info->num_connectors);
+ if (rc < 0) goto out;
+ }
+
+ info->connectors = libxl__calloc(NOGC, info->num_connectors,
+ sizeof(*info->connectors));
+
+ for (i = 0; i < info->num_connectors; i++) {
+ char *value;
+
+ snprintf(connector_path, 128, "%s/%d/id", path, i);
+ info->connectors[i].id = xs_read(ctx->xsh, XBT_NULL,
+ connector_path, NULL);
+ if (info->connectors[i].id == NULL) { rc = ERROR_FAIL; goto out; }
+
+ snprintf(connector_path, 128, "%s/%d/resolution", path, i);
+ value = xs_read(ctx->xsh, XBT_NULL, connector_path, NULL);
+ if (value == NULL) { rc = ERROR_FAIL; goto out; }
+
+ rc = sscanf(value, "%ux%u", &info->connectors[i].width,
+ &info->connectors[i].height);
+ free(value);
+ if (rc != 2) {
+ rc = ERROR_FAIL; goto out;
+ }
+
+ snprintf(connector_path, 128, "%s/%d/req-ring-ref", path, i);
+ value = xs_read(ctx->xsh, XBT_NULL, connector_path, NULL);
+ info->connectors[i].req_rref = value ? strtoul(value, NULL, 10) : -1;
+ free(value);
+
+ snprintf(connector_path, 128, "%s/%d/req-event-channel", path, i);
+ value = xs_read(ctx->xsh, XBT_NULL, connector_path, NULL);
+ info->connectors[i].req_evtch = value ? strtoul(value, NULL, 10) : -1;
+ free(value);
+
+ snprintf(connector_path, 128, "%s/%d/evt-ring-ref", path, i);
+ value = xs_read(ctx->xsh, XBT_NULL, connector_path, NULL);
+ info->connectors[i].evt_rref = value ? strtoul(value, NULL, 10) : -1;
+ free(value);
+
+ snprintf(connector_path, 128, "%s/%d/evt-event-channel", path, i);
+ value = xs_read(ctx->xsh, XBT_NULL, connector_path, NULL);
+ info->connectors[i].evt_evtch = value ? strtoul(value, NULL, 10) : -1;
+ free(value);
+ }
+
+ rc = 0;
+
+out:
+ return rc;
+}
+
+int libxl_device_vdispl_getinfo(libxl_ctx *ctx, uint32_t domid,
+ libxl_device_vdispl *vdispl,
+ libxl_vdisplinfo *info)
+{
+ GC_INIT(ctx);
+ char *libxl_path, *dompath, *devpath;
+ char *val;
+ int rc;
+
+ libxl_vdisplinfo_init(info);
+ dompath = libxl__xs_get_dompath(gc, domid);
+ info->devid = vdispl->devid;
+
+ devpath = GCSPRINTF("%s/device/vdispl/%d", dompath, info->devid);
+ libxl_path = GCSPRINTF("%s/device/vdispl/%d",
+ libxl__xs_libxl_path(gc, domid),
+ info->devid);
+ info->backend = xs_read(ctx->xsh, XBT_NULL,
+ GCSPRINTF("%s/backend", libxl_path),
+ NULL);
+ if (!info->backend) { rc = ERROR_FAIL; goto out; }
+
+ rc = libxl__backendpath_parse_domid(gc, info->backend, &info->backend_id);
+ if (rc) goto out;
+
+ val = libxl__xs_read(gc, XBT_NULL, GCSPRINTF("%s/state", devpath));
+ info->state = val ? strtoul(val, NULL, 10) : -1;
+
+ info->frontend = xs_read(ctx->xsh, XBT_NULL,
+ GCSPRINTF("%s/frontend", libxl_path),
+ NULL);
+ info->frontend_id = domid;
+
+ val = libxl__xs_read(gc, XBT_NULL, GCSPRINTF("%s/be-alloc", devpath));
+ info->be_alloc = val ? strtoul(val, NULL, 10) : 0;
+
+ rc = libxl__device_vdispl_getconnectors(ctx, devpath, info);
+ if (rc) goto out;
+
+ rc = 0;
+
+out:
+ GC_FREE;
+ return rc;
+}
+
+int libxl_devid_to_device_vdispl(libxl_ctx *ctx, uint32_t domid,
+ int devid, libxl_device_vdispl *vdispl)
+{
+ GC_INIT(ctx);
+
+ libxl_device_vdispl *vdispls = NULL;
+ int n, i;
+ int rc;
+
+ libxl_device_vdispl_init(vdispl);
+
+ vdispls = libxl__device_list(gc, &libxl__vdispl_devtype,
+ domid, "vdispl", &n);
+
+ if (!vdispls) { rc = ERROR_NOTFOUND; goto out; }
+
+ for (i = 0; i < n; ++i) {
+ if (devid == vdispls[i].devid) {
+ libxl_device_vdispl_copy(ctx, vdispl, &vdispls[i]);
+ rc = 0;
+ goto out;
+ }
+ }
+
+ rc = ERROR_NOTFOUND;
+
+out:
+
+ if (vdispls)
+ libxl__device_list_free(&libxl__vdispl_devtype, vdispls, n);
+
+ GC_FREE;
+ return rc;
+}
+
+LIBXL_DEFINE_DEVICE_ADD(vdispl)
+static LIBXL_DEFINE_DEVICES_ADD(vdispl)
+LIBXL_DEFINE_DEVICE_REMOVE(vdispl)
+static LIBXL_DEFINE_UPDATE_DEVID(vdispl, "vdispl")
+
+DEFINE_DEVICE_TYPE_STRUCT(vdispl,
+ .update_config = (void (*)(libxl__gc *, void *, void *))
+ libxl__update_config_vdispl,
+ .from_xenstore = (int (*)(libxl__gc *, const char *, libxl_devid, void *))
+ libxl__vdispl_from_xenstore,
+ .set_xenstore_config = (int (*)(libxl__gc *, uint32_t, void *,
+ flexarray_t *back, flexarray_t *front,
+ flexarray_t *ro_front))
+ libxl__set_xenstore_vdispl
+);
+
+/*
+ * Local variables:
+ * mode: C
+ * c-basic-offset: 4
+ * indent-tabs-mode: nil
+ * End:
+ */
--
2.7.4
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