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[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [Xen-devel] [PATCH v2 3/6] libxl: vkb add list and info functions
From: Oleksandr Grytsov <oleksandr_grytsov@xxxxxxxx>
Signed-off-by: Oleksandr Grytsov <oleksandr_grytsov@xxxxxxxx>
Acked-by: Wei Liu <wei.liu2@xxxxxxxxxx>
---
tools/libxl/libxl.h | 10 +++
tools/libxl/libxl_types.idl | 11 ++++
tools/libxl/libxl_utils.h | 3 +
tools/libxl/libxl_vkb.c | 127 +++++++++++++++++++++++++++++++++++-
4 files changed, 149 insertions(+), 2 deletions(-)
diff --git a/tools/libxl/libxl.h b/tools/libxl/libxl.h
index a09d069358..123b46078b 100644
--- a/tools/libxl/libxl.h
+++ b/tools/libxl/libxl.h
@@ -2013,6 +2013,16 @@ int libxl_device_vkb_destroy(libxl_ctx *ctx, uint32_t
domid,
const libxl_asyncop_how *ao_how)
LIBXL_EXTERNAL_CALLERS_ONLY;
+libxl_device_vkb *libxl_device_vkb_list(libxl_ctx *ctx,
+ uint32_t domid, int *num)
+ LIBXL_EXTERNAL_CALLERS_ONLY;
+void libxl_device_vkb_list_free(libxl_device_vkb* list, int num)
+ LIBXL_EXTERNAL_CALLERS_ONLY;
+int libxl_device_vkb_getinfo(libxl_ctx *ctx, uint32_t domid,
+ libxl_device_vkb *vkb,
+ libxl_vkbinfo *vkbinfo)
+ LIBXL_EXTERNAL_CALLERS_ONLY;
+
/* Framebuffer */
int libxl_device_vfb_add(libxl_ctx *ctx, uint32_t domid, libxl_device_vfb *vfb,
const libxl_asyncop_how *ao_how)
diff --git a/tools/libxl/libxl_types.idl b/tools/libxl/libxl_types.idl
index 66c9444101..b7fa42fba0 100644
--- a/tools/libxl/libxl_types.idl
+++ b/tools/libxl/libxl_types.idl
@@ -963,6 +963,17 @@ libxl_vdisplinfo = Struct("vdisplinfo", [
("connectors", Array(libxl_connectorinfo, "num_connectors"))
], dir=DIR_OUT)
+libxl_vkbinfo = Struct("vkbinfo", [
+ ("backend", string),
+ ("backend_id", uint32),
+ ("frontend", string),
+ ("frontend_id", uint32),
+ ("devid", libxl_devid),
+ ("state", integer),
+ ("evtch", integer),
+ ("rref", integer)
+ ], 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_utils.h b/tools/libxl/libxl_utils.h
index 9e743dc598..91df06ec81 100644
--- a/tools/libxl/libxl_utils.h
+++ b/tools/libxl/libxl_utils.h
@@ -79,6 +79,9 @@ int libxl_devid_to_device_vtpm(libxl_ctx *ctx, uint32_t domid,
int libxl_devid_to_device_usbctrl(libxl_ctx *ctx, uint32_t domid,
int devid, libxl_device_usbctrl *usbctrl);
+int libxl_devid_to_device_vkb(libxl_ctx *ctx, uint32_t domid,
+ int devid, libxl_device_vkb *vkb);
+
int libxl_devid_to_device_vdispl(libxl_ctx *ctx, uint32_t domid,
int devid, libxl_device_vdispl *vdispl);
diff --git a/tools/libxl/libxl_vkb.c b/tools/libxl/libxl_vkb.c
index beaf17475d..d2ffc74c0d 100644
--- a/tools/libxl/libxl_vkb.c
+++ b/tools/libxl/libxl_vkb.c
@@ -50,6 +50,45 @@ static int libxl__set_xenstore_vkb(libxl__gc *gc, uint32_t
domid,
return 0;
}
+static int libxl__vkb_from_xenstore(libxl__gc *gc, const char *libxl_path,
+ libxl_devid devid,
+ libxl_device_vkb *vkb)
+{
+ const char *be_path, *be_type, *fe_path;
+ int rc;
+
+ vkb->devid = devid;
+
+ rc = libxl__xs_read_mandatory(gc, XBT_NULL,
+ GCSPRINTF("%s/backend", libxl_path),
+ &be_path);
+ if (rc) goto out;
+
+ rc = libxl__xs_read_mandatory(gc, XBT_NULL,
+ GCSPRINTF("%s/frontend", libxl_path),
+ &fe_path);
+ if (rc) goto out;
+
+ rc = libxl__backendpath_parse_domid(gc, be_path, &vkb->backend_domid);
+ if (rc) goto out;
+
+ rc = libxl__xs_read_mandatory(gc, XBT_NULL,
+ GCSPRINTF("%s/backend-type", be_path),
+ &be_type);
+ if (rc) goto out;
+
+ rc = libxl_vkb_backend_from_string(be_type, &vkb->backend_type);
+ if (rc) goto out;
+
+ vkb->unique_id = xs_read(CTX->xsh, XBT_NULL,
GCSPRINTF("%s/"XENKBD_FIELD_UNIQUE_ID, be_path), NULL);
+
+ rc = 0;
+
+out:
+
+ return rc;
+}
+
int libxl_device_vkb_add(libxl_ctx *ctx, uint32_t domid, libxl_device_vkb *vkb,
const libxl_asyncop_how *ao_how)
{
@@ -67,20 +106,104 @@ out:
return AO_INPROGRESS;
}
+int libxl_devid_to_device_vkb(libxl_ctx *ctx, uint32_t domid,
+ int devid, libxl_device_vkb *vkb)
+{
+ GC_INIT(ctx);
+
+ libxl_device_vkb *vkbs = NULL;
+ int n, i;
+ int rc;
+
+ libxl_device_vkb_init(vkb);
+
+ vkbs = libxl__device_list(gc, &libxl__vkb_devtype, domid, &n);
+
+ if (!vkbs) { rc = ERROR_NOTFOUND; goto out; }
+
+ for (i = 0; i < n; ++i) {
+ if (devid == vkbs[i].devid) {
+ libxl_device_vkb_copy(ctx, vkb, &vkbs[i]);
+ rc = 0;
+ goto out;
+ }
+ }
+
+ rc = ERROR_NOTFOUND;
+
+out:
+
+ if (vkbs)
+ libxl__device_list_free(&libxl__vkb_devtype, vkbs, n);
+
+ GC_FREE;
+ return rc;
+}
+
+int libxl_device_vkb_getinfo(libxl_ctx *ctx, uint32_t domid,
+ libxl_device_vkb *vkb,
+ libxl_vkbinfo *info)
+{
+ GC_INIT(ctx);
+ char *libxl_path, *dompath, *devpath;
+ char *val;
+ int rc;
+
+ libxl_vkbinfo_init(info);
+ dompath = libxl__xs_get_dompath(gc, domid);
+ info->devid = vkb->devid;
+
+ devpath = libxl__domain_device_frontend_path(gc, domid, info->devid,
+ LIBXL__DEVICE_KIND_VKBD);
+ libxl_path = libxl__domain_device_libxl_path(gc, domid, info->devid,
+ LIBXL__DEVICE_KIND_VKBD);
+
+ 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/"XENKBD_FIELD_EVT_CHANNEL, devpath));
+ info->evtch = val ? strtoul(val, NULL, 10) : -1;
+
+ val = libxl__xs_read(gc, XBT_NULL,
+ GCSPRINTF("%s/"XENKBD_FIELD_RING_GREF, devpath));
+ info->rref = val ? strtoul(val, NULL, 10) : -1;
+
+ rc = 0;
+
+out:
+ GC_FREE;
+ return rc;
+}
+
static LIBXL_DEFINE_DEVICE_FROM_TYPE(vkb)
static LIBXL_DEFINE_UPDATE_DEVID(vkb)
#define libxl__add_vkbs NULL
-#define libxl_device_vkb_list NULL
#define libxl_device_vkb_compare NULL
+LIBXL_DEFINE_DEVICE_LIST(vkb)
LIBXL_DEFINE_DEVICE_REMOVE(vkb)
DEFINE_DEVICE_TYPE_STRUCT(vkb, VKBD,
.skip_attach = 1,
.dm_needed = (device_dm_needed_fn_t)libxl__device_vkb_dm_needed,
.set_xenstore_config = (device_set_xenstore_config_fn_t)
- libxl__set_xenstore_vkb
+ libxl__set_xenstore_vkb,
+ .from_xenstore = (device_from_xenstore_fn_t)libxl__vkb_from_xenstore
);
/*
--
2.17.1
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