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[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [Embedded-pv-devel] [PATCH RFC 3/6] libxl: implementation of PV tty device interface.
PV tty device interface is implemented in libxl and xl with
full support for device control. No JSON parser for domain
configuration yet.
Signed-off-by: Iurii Mykhalskyi <iurii.mykhalskyi@xxxxxxxxxxxxxxx>
Signed-off-by: Iurii Konovalenko <iurii.konovalenko@xxxxxxxxxxxxxxx>
---
tools/libxl/libxl.c | 282 +++++++++++++++++++++++++++++++++++
tools/libxl/libxl.h | 17 +++
tools/libxl/libxl_create.c | 37 ++++-
tools/libxl/libxl_device.c | 2 +
tools/libxl/libxl_internal.h | 13 +-
tools/libxl/libxl_types.idl | 19 +++
tools/libxl/libxl_types_internal.idl | 1 +
tools/libxl/libxl_utils.h | 3 +
tools/libxl/xl.h | 3 +
tools/libxl/xl_cmdimpl.c | 160 +++++++++++++++++++-
tools/libxl/xl_cmdtable.c | 15 ++
11 files changed, 549 insertions(+), 3 deletions(-)
diff --git a/tools/libxl/libxl.c b/tools/libxl/libxl.c
index d96172d..1426bf6 100644
--- a/tools/libxl/libxl.c
+++ b/tools/libxl/libxl.c
@@ -2595,6 +2595,276 @@ exit:
/******************************************************************************/
+int libxl__device_vtty_setdefault(libxl__gc *gc, libxl_device_vtty *vtty)
+{
+ int rc;
+
+ rc = libxl__resolve_domid(gc, vtty->backend_domname, &vtty->backend_domid);
+
+ return rc;
+}
+
+static int libxl__device_from_vtty(libxl__gc *gc, uint32_t domid,
libxl_device_vtty *vtty, libxl__device *device)
+{
+ device->backend_devid = vtty->devid;
+ device->backend_domid = vtty->backend_domid;
+ device->backend_kind = LIBXL__DEVICE_KIND_VTTY;
+ device->devid = vtty->devid;
+ device->domid = domid;
+ device->kind = LIBXL__DEVICE_KIND_VTTY;
+
+ return 0;
+}
+
+static int libxl__device_vtty_from_xs_be(libxl__gc *gc,
+ const char *be_path,
+ libxl_device_vtty *vtty)
+{
+ const char *tmp;
+ int rc;
+
+ libxl_device_vtty_init(vtty);
+
+ tmp = READ_BACKEND(gc, "device-id");
+ if (tmp)
+ vtty->devid = atoi(tmp);
+ else
+ vtty->devid = 0;
+
+ rc = 0;
+ out:
+ return rc;
+}
+
+int libxl_devid_to_device_vtty(libxl_ctx *ctx, uint32_t domid,
+ int devid, libxl_device_vtty *vtty)
+{
+ GC_INIT(ctx);
+ char *dompath, *path;
+ int rc = ERROR_FAIL;
+
+ libxl_device_vtty_init(vtty);
+ dompath = libxl__xs_get_dompath(gc, domid);
+ if (!dompath)
+ goto out;
+
+ path = libxl__xs_read(gc, XBT_NULL,
+ libxl__sprintf(gc, "%s/device/vtty/%d/backend",
+ dompath, devid));
+ if (!path)
+ goto out;
+
+ rc = libxl__device_vtty_from_xs_be(gc, path, vtty);
+ if (rc) goto out;
+
+ rc = 0;
+out:
+ GC_FREE;
+ return rc;
+}
+
+void libxl__device_vtty_add(libxl__egc *egc, uint32_t domid, libxl_device_vtty
*vtty, 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_vtty vtty_saved;
+ libxl__domain_userdata_lock *lock = NULL;
+
+ libxl_domain_config_init(&d_config);
+ libxl_device_vtty_init(&vtty_saved);
+ libxl_device_vtty_copy(CTX, &vtty_saved, vtty);
+
+ rc = libxl__device_vtty_setdefault(gc, vtty);
+ if (rc) goto out;
+
+ front = flexarray_make(gc, 16, 1);
+ back = flexarray_make(gc, 32, 1);
+
+ if ((vtty->devid = libxl__device_nextid(gc, domid, "vtty")) < 0) {
+ rc = ERROR_FAIL;
+ goto out;
+ }
+
+ GCNEW(device);
+ rc = libxl__device_from_vtty(gc, domid, vtty, device);
+ if ( rc != 0 ) goto out;
+
+ flexarray_append(back, "device-id");
+ flexarray_append(back, GCSPRINTF("%d", vtty->devid));
+ flexarray_append(back, "frontend-id");
+ flexarray_append(back, GCSPRINTF("%d", domid));
+ flexarray_append(back, "device");
+ flexarray_append(back, vtty->device);
+ flexarray_append(back, "online");
+ flexarray_append(back, "1");
+ flexarray_append(back, "state");
+ flexarray_append(back, GCSPRINTF("%d", 1));
+
+ flexarray_append(front, "device-id");
+ flexarray_append(front, GCSPRINTF("%d", vtty->devid));
+ flexarray_append(front, "backend-id");
+ flexarray_append(front, GCSPRINTF("%d", vtty->backend_domid));
+ flexarray_append(front, "state");
+ flexarray_append(front, GCSPRINTF("%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(vtty, vttys, domid, &vtty_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_vtty_dispose(&vtty_saved);
+ libxl_domain_config_dispose(&d_config);
+ aodev->rc = rc;
+ if(rc) aodev->callback(egc, aodev);
+ return;
+
+}
+
+libxl_device_vtty *libxl_device_vtty_list(libxl_ctx *ctx, uint32_t domid, int
*num)
+{
+ GC_INIT(ctx);
+
+ libxl_device_vtty* vttys = NULL;
+ char* fe_path = NULL;
+ char** dir = NULL;
+ unsigned int ndirs = 0;
+
+ *num = 0;
+
+ fe_path = libxl__sprintf(gc, "%s/device/vtty", libxl__xs_get_dompath(gc,
domid));
+ dir = libxl__xs_directory(gc, XBT_NULL, fe_path, &ndirs);
+ if (dir && ndirs) {
+ vttys = malloc(sizeof(*vttys) * ndirs);
+ libxl_device_vtty* vtty;
+ libxl_device_vtty* end = vttys + ndirs;
+ for(vtty = vttys; vtty < end; ++vtty, ++dir) {
+ char* tmp;
+
+ libxl_device_vtty_init(vtty);
+
+ vtty->devid = atoi(*dir);
+
+ tmp = libxl__xs_read(gc, XBT_NULL,
+ GCSPRINTF("%s/%s/backend-id",
+ fe_path, *dir));
+ vtty->backend_domid = atoi(tmp);
+ }
+ }
+ *num = ndirs;
+
+ GC_FREE;
+ return vttys;
+}
+
+int libxl_device_vtty_getinfo(libxl_ctx *ctx, uint32_t domid,
libxl_device_vtty *vtty, libxl_vttyinfo *vttyinfo)
+{
+ GC_INIT(ctx);
+ char *dompath, *vttypath;
+ char *val;
+ int rc = 0;
+
+ libxl_vttyinfo_init(vttyinfo);
+ dompath = libxl__xs_get_dompath(gc, domid);
+ vttyinfo->devid = vtty->devid;
+
+ vttypath = GCSPRINTF("%s/device/vtty/%d", dompath, vttyinfo->devid);
+ vttyinfo->backend = xs_read(ctx->xsh, XBT_NULL,
+ GCSPRINTF("%s/backend", vttypath), NULL);
+
+ if (!vttyinfo->backend) {
+ goto err;
+ }
+
+ if(!libxl__xs_read(gc, XBT_NULL, vttyinfo->backend)) {
+ goto err;
+ }
+
+ val = libxl__xs_read(gc, XBT_NULL,
+ GCSPRINTF("%s/backend-id", vttypath));
+ vttyinfo->backend_id = val ? strtoul(val, NULL, 10) : -1;
+
+ val = libxl__xs_read(gc, XBT_NULL,
+ GCSPRINTF("%s/state", vttypath));
+ vttyinfo->state = val ? strtoul(val, NULL, 10) : -1;
+
+ val = libxl__xs_read(gc, XBT_NULL,
+ GCSPRINTF("%s/event-channel", vttypath));
+ vttyinfo->evtch = val ? strtoul(val, NULL, 10) : -1;
+
+ val = libxl__xs_read(gc, XBT_NULL,
+ GCSPRINTF("%s/ring-ref", vttypath));
+ vttyinfo->rref = val ? strtoul(val, NULL, 10) : -1;
+
+ vttyinfo->frontend = xs_read(ctx->xsh, XBT_NULL,
+ GCSPRINTF("%s/frontend", vttyinfo->backend), NULL);
+
+ val = libxl__xs_read(gc, XBT_NULL,
+ GCSPRINTF("%s/frontend-id", vttyinfo->backend));
+ vttyinfo->frontend_id = val ? strtoul(val, NULL, 10) : -1;
+
+ goto exit;
+err:
+ rc = ERROR_FAIL;
+exit:
+ GC_FREE;
+ return rc;
+}
+
+/******************************************************************************/
+
int libxl__device_vsnd_setdefault(libxl__gc *gc, libxl_device_vsnd *vsnd)
{
int rc;
@@ -4749,6 +5019,8 @@ out:
* libxl_device_vrtc_destroy
* libxl_device_vsnd_remove
* libxl_device_vsnd_destroy
+ * libxl_device_vtty_remove
+ * libxl_device_vtty_destroy
*/
#define DEFINE_DEVICE_REMOVE(type, removedestroy, f) \
int libxl_device_##type##_##removedestroy(libxl_ctx *ctx, \
@@ -4808,6 +5080,10 @@ DEFINE_DEVICE_REMOVE(vrtc, destroy, 1)
DEFINE_DEVICE_REMOVE(vsnd, remove, 0)
DEFINE_DEVICE_REMOVE(vsnd, destroy, 1)
+/* vtty */
+DEFINE_DEVICE_REMOVE(vtty, remove, 0)
+DEFINE_DEVICE_REMOVE(vtty, 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. */
@@ -4823,6 +5099,7 @@ DEFINE_DEVICE_REMOVE(vsnd, destroy, 1)
* libxl_device_vtpm_add
* libxl_device_vrtc_add
* libxl_device_vsnd_add
+ * libxl_device_vtty_add
*/
#define DEFINE_DEVICE_ADD(type) \
@@ -4860,6 +5137,9 @@ DEFINE_DEVICE_ADD(vrtc)
/* vsnd */
DEFINE_DEVICE_ADD(vsnd)
+/* vtty */
+DEFINE_DEVICE_ADD(vtty)
+
#undef DEFINE_DEVICE_ADD
/******************************************************************************/
@@ -7381,6 +7661,8 @@ int libxl_retrieve_domain_configuration(libxl_ctx *ctx,
uint32_t domid,
MERGE(pci, pcidevs, COMPARE_PCI, {});
+ MERGE(vtty, vttys, 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 3cb67e2..47829dd 100644
--- a/tools/libxl/libxl.h
+++ b/tools/libxl/libxl.h
@@ -1468,6 +1468,23 @@ libxl_device_vsnd *libxl_device_vsnd_list(libxl_ctx
*ctx, uint32_t domid, int *n
int libxl_device_vsnd_getinfo(libxl_ctx *ctx, uint32_t domid,
libxl_device_vsnd *vsnd, libxl_vsndinfo
*vsndinfo);
+/* TTY */
+int libxl_device_vtty_add(libxl_ctx *ctx, uint32_t domid, libxl_device_vtty
*vtty,
+ const libxl_asyncop_how *ao_how)
+ LIBXL_EXTERNAL_CALLERS_ONLY;
+int libxl_device_vtty_remove(libxl_ctx *ctx, uint32_t domid,
+ libxl_device_vtty *vtty,
+ const libxl_asyncop_how *ao_how)
+ LIBXL_EXTERNAL_CALLERS_ONLY;
+int libxl_device_vtty_destroy(libxl_ctx *ctx, uint32_t domid,
+ libxl_device_vtty *vtty,
+ const libxl_asyncop_how *ao_how)
+ LIBXL_EXTERNAL_CALLERS_ONLY;
+
+libxl_device_vtty *libxl_device_vtty_list(libxl_ctx *ctx, uint32_t domid, int
*num);
+int libxl_device_vtty_getinfo(libxl_ctx *ctx, uint32_t domid,
+ libxl_device_vtty *vtty, libxl_vttyinfo
*vttyinfo);
+
/* 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 8ff4178..38d9b12 100644
--- a/tools/libxl/libxl_create.c
+++ b/tools/libxl/libxl_create.c
@@ -736,6 +736,8 @@ static void domcreate_attach_vtpms(libxl__egc *egc,
libxl__multidev *multidev,
int ret);
static void domcreate_attach_vrtcs(libxl__egc *egc, libxl__multidev *multidev,
int ret);
+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_pci(libxl__egc *egc, libxl__multidev *aodevs,
@@ -1429,12 +1431,45 @@ static void domcreate_attach_vrtcs(libxl__egc *egc,
if (d_config->num_vrtcs > 0) {
/* Attach vrtcs */
libxl__multidev_begin(ao, &dcs->multidev);
- dcs->multidev.callback = domcreate_attach_vsnds;
+ dcs->multidev.callback = domcreate_attach_vttys;
libxl__add_vrtcs(egc, ao, domid, d_config, &dcs->multidev);
libxl__multidev_prepared(egc, &dcs->multidev, 0);
return;
}
+ domcreate_attach_vttys(egc, multidev, 0);
+ return;
+
+error_out:
+ assert(ret);
+ domcreate_complete(egc, dcs, ret);
+}
+
+static void domcreate_attach_vttys(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 vtty devices");
+ goto error_out;
+ }
+
+ /* Plug vtty devices */
+ if (d_config->num_vttys > 0) {
+ /* Attach vttys */
+ libxl__multidev_begin(ao, &dcs->multidev);
+ dcs->multidev.callback = domcreate_attach_vsnds;
+ libxl__add_vttys(egc, ao, domid, d_config, &dcs->multidev);
+ libxl__multidev_prepared(egc, &dcs->multidev, 0);
+ return;
+ }
+
domcreate_attach_vsnds(egc, multidev, 0);
return;
diff --git a/tools/libxl/libxl_device.c b/tools/libxl/libxl_device.c
index 419af16..df50fdb 100644
--- a/tools/libxl/libxl_device.c
+++ b/tools/libxl/libxl_device.c
@@ -546,6 +546,7 @@ void libxl__multidev_prepared(libxl__egc *egc,
* libxl__add_vtpms
* libxl__add_vrtcs
* libxl__add_vsnds
+ * libxl__add_vttys
*/
#define DEFINE_DEVICES_ADD(type) \
@@ -567,6 +568,7 @@ DEFINE_DEVICES_ADD(nic)
DEFINE_DEVICES_ADD(vtpm)
DEFINE_DEVICES_ADD(vrtc)
DEFINE_DEVICES_ADD(vsnd)
+DEFINE_DEVICES_ADD(vtty)
#undef DEFINE_DEVICES_ADD
diff --git a/tools/libxl/libxl_internal.h b/tools/libxl/libxl_internal.h
index d78dd79..1bacc73 100644
--- a/tools/libxl/libxl_internal.h
+++ b/tools/libxl/libxl_internal.h
@@ -478,7 +478,8 @@ typedef struct {
(dev)->backend_kind == LIBXL__DEVICE_KIND_VFB || \
(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_VSND || \
+ (dev)->backend_kind == LIBXL__DEVICE_KIND_VTTY)
#define XC_PCI_BDF "0x%x, 0x%x, 0x%x, 0x%x"
#define PCI_DEVFN(slot, func) ((((slot) & 0x1f) << 3) | ((func) & 0x07))
@@ -1190,6 +1191,7 @@ _hidden int libxl__device_nic_setdefault(libxl__gc *gc,
libxl_device_nic *nic,
_hidden int libxl__device_vtpm_setdefault(libxl__gc *gc, libxl_device_vtpm
*vtpm);
_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_vkb_setdefault(libxl__gc *gc, libxl_device_vkb *vkb);
_hidden int libxl__device_pci_setdefault(libxl__gc *gc, libxl_device_pci *pci);
@@ -2579,6 +2581,11 @@ _hidden void libxl__device_vsnd_add(libxl__egc *egc,
uint32_t domid,
libxl_device_vsnd *vsnd,
libxl__ao_device *aodev);
+/* AO operation to connect a tty device */
+_hidden void libxl__device_vtty_add(libxl__egc *egc, uint32_t domid,
+ libxl_device_vtty *vtty,
+ libxl__ao_device *aodev);
+
/* Internal function to connect a vkb device */
_hidden int libxl__device_vkb_add(libxl__gc *gc, uint32_t domid,
libxl_device_vkb *vkb);
@@ -3299,6 +3306,10 @@ _hidden void libxl__add_vrtcs(libxl__egc *egc, libxl__ao
*ao, uint32_t domid,
libxl_domain_config *d_config,
libxl__multidev *multidev);
+_hidden void libxl__add_vttys(libxl__egc *egc, libxl__ao *ao, uint32_t domid,
+ libxl_domain_config *d_config,
+ libxl__multidev *multidev);
+
_hidden void libxl__add_vsnds(libxl__egc *egc, libxl__ao *ao, uint32_t domid,
libxl_domain_config *d_config,
libxl__multidev *multidev);
diff --git a/tools/libxl/libxl_types.idl b/tools/libxl/libxl_types.idl
index 8fa29b1..4477297 100644
--- a/tools/libxl/libxl_types.idl
+++ b/tools/libxl/libxl_types.idl
@@ -571,6 +571,13 @@ libxl_device_vsnd = Struct("device_vsnd", [
("period_max", integer),
])
+libxl_device_vtty = Struct("device_vtty", [
+ ("backend_domid", libxl_domid),
+ ("backend_domname", string),
+ ("devid", libxl_devid),
+ ("device", string),
+ ])
+
libxl_device_disk = Struct("device_disk", [
("backend_domid", libxl_domid),
("backend_domname", string),
@@ -660,6 +667,7 @@ libxl_domain_config = Struct("domain_config", [
("vtpms", Array(libxl_device_vtpm, "num_vtpms")),
("vrtcs", Array(libxl_device_vrtc, "num_vrtcs")),
("vsnds", Array(libxl_device_vsnd, "num_vsnds")),
+ ("vttys", Array(libxl_device_vtty, "num_vttys")),
# a channel manifests as a console with a name,
# see docs/misc/channels.txt
("channels", Array(libxl_device_channel, "num_channels")),
@@ -727,6 +735,17 @@ libxl_vsndinfo = Struct("vsndinfo", [
("rref", integer),
], dir=DIR_OUT)
+libxl_vttyinfo = Struct("vttyinfo", [
+ ("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 ec63e23..182aeee 100644
--- a/tools/libxl/libxl_types_internal.idl
+++ b/tools/libxl/libxl_types_internal.idl
@@ -24,6 +24,7 @@ libxl__device_kind = Enumeration("device_kind", [
(8, "VTPM"),
(9, "VRTC"),
(10, "VSND"),
+ (11, "VTTY"),
])
libxl__console_backend = Enumeration("console_backend", [
diff --git a/tools/libxl/libxl_utils.h b/tools/libxl/libxl_utils.h
index f6532ce..3d47534 100644
--- a/tools/libxl/libxl_utils.h
+++ b/tools/libxl/libxl_utils.h
@@ -83,6 +83,9 @@ int libxl_devid_to_device_vrtc(libxl_ctx *ctx, uint32_t domid,
int libxl_devid_to_device_vsnd(libxl_ctx *ctx, uint32_t domid,
int devid, libxl_device_vsnd *vsnd);
+int libxl_devid_to_device_vtty(libxl_ctx *ctx, uint32_t domid,
+ int devid, libxl_device_vtty *vtty);
+
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 81a78c0..cc990c1 100644
--- a/tools/libxl/xl.h
+++ b/tools/libxl/xl.h
@@ -88,6 +88,9 @@ int main_vrtcdetach(int argc, char **argv);
int main_vsndattach(int argc, char **argv);
int main_vsndlist(int argc, char **argv);
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_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 cb2d8c6..5ac9b81 100644
--- a/tools/libxl/xl_cmdimpl.c
+++ b/tools/libxl/xl_cmdimpl.c
@@ -1271,7 +1271,7 @@ 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, *vsnds;
+ XLU_ConfigList *cpus, *vbds, *nics, *pcis, *cvfbs, *cpuids, *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;
@@ -1901,6 +1901,54 @@ static void parse_config_data(const char *config_source,
}
}
+ if (!xlu_cfg_get_list(config, "vtty", &vttys, 0, 0)) {
+ d_config->num_vttys = 0;
+ d_config->vttys = NULL;
+ while ((buf = xlu_cfg_get_listitem(vttys, d_config->num_vttys)) !=
NULL) {
+ libxl_device_vtty *vtty;
+ libxl_string_list pairs;
+ char *path = NULL;
+ int len;
+
+ vtty = ARRAY_EXTEND_INIT(d_config->vttys, d_config->num_vttys,
+ libxl_device_vtty_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 vtty configuration: %s",
+ pairs[i]);
+ exit(1);
+ }
+ trim(isspace, key_untrimmed, &key);
+ trim(isspace, value_untrimmed, &value);
+
+ if (!strcmp(key, "backendid")) {
+ vtty->backend_domid = atoi(value);
+ } else if (!strcmp(key, "backend")) {
+ replace_string(&vtty->backend_domname, value);
+ } else if (!strcmp(key, "devid")) {
+ vtty->devid = atoi(value);
+ } else if (!strcmp(key, "device")) {
+ replace_string(&vtty->device, value);
+ }
+ free(key);
+ free(key_untrimmed);
+ free(value);
+ free(value_untrimmed);
+ }
+ libxl_string_list_dispose(&pairs);
+ free(path);
+ }
+ }
+
if (!xlu_cfg_get_list(config, "vsnd", &vsnds, 0, 0)) {
d_config->num_vsnds = 0;
d_config->vsnds = NULL;
@@ -7121,6 +7169,116 @@ int main_vsnddetach(int argc, char **argv)
return rc;
}
+int main_vttyattach(int argc, char **argv)
+{
+
+ int opt;
+ uint32_t fe_domid;
+ libxl_device_vtty vtty;
+ /* XLU_Config *config = 0; */
+
+ SWITCH_FOREACH_OPT(opt, "", NULL, "vtty-attach", 2) {
+ /* 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++;
+
+ if (optind < argc) {
+ replace_string(&vtty.device, argv[optind]);
+ }
+
+ /* TODO: fix this temporary hardcode */
+ vtty.backend_domname = "Domain-D";
+ vtty.backend_domid = 1;
+
+ if (dryrun_only) {
+ char *json = libxl_device_vtty_to_json(ctx, &vtty);
+ printf("vtty: %s\n", json);
+ free(json);
+ if (ferror(stdout) || fflush(stdout)) { perror("stdout"); exit(-1); }
+ return 0;
+ }
+
+ if (libxl_device_vtty_add(ctx, fe_domid, &vtty, 0)) {
+ fprintf(stderr, "libxl_device_vtty_add failed.\n");
+ return 1;
+ }
+
+ return 0;
+}
+
+int main_vttylist(int argc, char **argv)
+{
+ int opt;
+ int i, nb;
+ libxl_device_vtty *vttys;
+ libxl_vttyinfo vttyinfo;
+
+ SWITCH_FOREACH_OPT(opt, "", NULL, "vtty-list", 1) {
+ /* No options */
+ }
+
+ /* vttyinfo.uuid should be outputted too */
+ 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;
+ }
+ vttys = libxl_device_vtty_list(ctx, domid, &nb);
+ if (!vttys) {
+ continue;
+ }
+ for (i=0; i<nb; i++) {
+ if (!libxl_device_vtty_getinfo(ctx, domid, &vttys[i], &vttyinfo)) {
+ /* Vdev BE hdl st evch rref BE-path FE-path UUID */
+ printf("%-5d %-3d %-6d %-5d %-6d %-8d %-40s %-40s\n",
+ vttyinfo.devid, vttyinfo.backend_id,
vttyinfo.frontend_id,
+ vttyinfo.state, vttyinfo.evtch, vttyinfo.rref,
vttyinfo.backend,
+ vttyinfo.frontend);
+ libxl_vttyinfo_dispose(&vttyinfo);
+ }
+ libxl_device_vtty_dispose(&vttys[i]);
+ }
+ free(vttys);
+ }
+ return 0;
+}
+
+int main_vttydetach(int argc, char **argv)
+{
+ uint32_t domid, devid;
+ int opt, rc = 0;
+ libxl_device_vtty vtty;
+
+ SWITCH_FOREACH_OPT(opt, "", NULL, "vtty-detach", 2) {
+ /* No options */
+ }
+
+ domid = find_domain(argv[optind]);
+ devid = atoi(argv[optind+1]);
+
+ if (libxl_devid_to_device_vtty(ctx, domid, devid, &vtty)) {
+ fprintf(stderr, "Error: Device %s not connected.\n", argv[optind+1]);
+ return 1;
+ }
+
+ rc = libxl_device_vtty_remove(ctx, domid, &vtty, 0);
+ if (rc) {
+ fprintf(stderr, "libxl_device_vtty_remove failed.\n");
+ return 1;
+ }
+
+ libxl_device_vtty_dispose(&vtty);
+ 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 78f0700..7e3a8eb 100644
--- a/tools/libxl/xl_cmdtable.c
+++ b/tools/libxl/xl_cmdtable.c
@@ -386,6 +386,21 @@ struct cmd_spec cmd_table[] = {
"Destroy a domain's virtual audio device",
"<Domain> <DevId|uuid>",
},
+ { "vtty-attach",
+ &main_vttyattach, 1, 1,
+ "Create a new virtual tty device",
+ "<Domain> <Device>",
+ },
+ { "vtty-list",
+ &main_vttylist, 0, 0,
+ "List virtual tty devices for a domain",
+ "<Domain(s)>",
+ },
+ { "vtty-detach",
+ &main_vttydetach, 0, 1,
+ "Destroy a domain's virtual rtc device",
+ "<Domain> <DevId>",
+ },
{ "vtpm-attach",
&main_vtpmattach, 1, 1,
"Create a new virtual TPM device",
--
2.8.2
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