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[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [Xen-devel] [PATCH v10 17/19] libxl: convert libxl_device_vkb_add to an async operation
Split libxl_device_vkb_add into libxl__device_vkb_add (to be used
inside already running ao's), and make libxl_device_vkb_add a stub to
call libxl__device_vkb_add.
Changes since v9:
* Fixed Ocaml bindings.
* Don't abort if num_vkbs > 0.
Cc: Ian Jackson <ian.jackson@xxxxxxxxxxxxx>
Signed-off-by: Roger Pau Monne <roger.pau@xxxxxxxxxx>
---
tools/libxl/libxl.c | 26 +++++++++++++++++++-------
tools/libxl/libxl.h | 3 ++-
tools/libxl/libxl_create.c | 18 ++++++++++--------
tools/libxl/libxl_device.c | 2 ++
tools/libxl/libxl_dm.c | 9 ++++-----
tools/libxl/libxl_internal.h | 9 +++++++++
tools/ocaml/libs/xl/xenlight_stubs.c | 2 +-
7 files changed, 47 insertions(+), 22 deletions(-)
diff --git a/tools/libxl/libxl.c b/tools/libxl/libxl.c
index 25d9786..7de82a9 100644
--- a/tools/libxl/libxl.c
+++ b/tools/libxl/libxl.c
@@ -2831,12 +2831,13 @@ static int libxl__device_from_vkb(libxl__gc *gc,
uint32_t domid,
return 0;
}
-int libxl_device_vkb_add(libxl_ctx *ctx, uint32_t domid, libxl_device_vkb *vkb)
+void libxl__device_vkb_add(libxl__egc *egc, uint32_t domid,
+ libxl_device_vkb *vkb, libxl__ao_device *aodev)
{
- GC_INIT(ctx);
+ STATE_AO_GC(aodev->ao);
flexarray_t *front;
flexarray_t *back;
- libxl__device device;
+ libxl__device *device;
int rc;
rc = libxl__device_vkb_setdefault(gc, vkb);
@@ -2853,7 +2854,8 @@ int libxl_device_vkb_add(libxl_ctx *ctx, uint32_t domid,
libxl_device_vkb *vkb)
goto out_free;
}
- rc = libxl__device_from_vkb(gc, domid, vkb, &device);
+ GCNEW(device);
+ rc = libxl__device_from_vkb(gc, domid, vkb, device);
if (rc != 0) goto out_free;
flexarray_append(back, "frontend-id");
@@ -2870,16 +2872,22 @@ int libxl_device_vkb_add(libxl_ctx *ctx, uint32_t
domid, libxl_device_vkb *vkb)
flexarray_append(front, "state");
flexarray_append(front, libxl__sprintf(gc, "%d", 1));
- libxl__device_generic_add(gc, XBT_NULL, &device,
+ libxl__device_generic_add(gc, XBT_NULL, device,
libxl__xs_kvs_of_flexarray(gc, back, back->count),
libxl__xs_kvs_of_flexarray(gc, front,
front->count));
+
+ aodev->dev = device;
+ aodev->action = DEVICE_CONNECT;
+ libxl__wait_device_connection(egc, aodev);
+
rc = 0;
out_free:
flexarray_free(back);
flexarray_free(front);
out:
- GC_FREE;
- return rc;
+ aodev->rc = rc;
+ if (rc) aodev->callback(egc, aodev);
+ return;
}
/******************************************************************************/
@@ -3046,6 +3054,7 @@ DEFINE_DEVICE_REMOVE(vfb, destroy, 1)
/* The following functions are defined:
* libxl_device_disk_add
* libxl_device_nic_add
+ * libxl_device_vkb_add
*/
#define DEFINE_DEVICE_ADD(type) \
@@ -3072,6 +3081,9 @@ DEFINE_DEVICE_ADD(disk)
/* nic */
DEFINE_DEVICE_ADD(nic)
+/* vkb */
+DEFINE_DEVICE_ADD(vkb)
+
#undef DEFINE_DEVICE_ADD
/******************************************************************************/
diff --git a/tools/libxl/libxl.h b/tools/libxl/libxl.h
index d548090..84d4efd 100644
--- a/tools/libxl/libxl.h
+++ b/tools/libxl/libxl.h
@@ -710,7 +710,8 @@ int libxl_device_nic_getinfo(libxl_ctx *ctx, uint32_t domid,
libxl_device_nic *nic, libxl_nicinfo *nicinfo);
/* Keyboard */
-int libxl_device_vkb_add(libxl_ctx *ctx, uint32_t domid, libxl_device_vkb
*vkb);
+int libxl_device_vkb_add(libxl_ctx *ctx, uint32_t domid, libxl_device_vkb *vkb,
+ const libxl_asyncop_how *ao_how);
int libxl_device_vkb_remove(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 7db9457..39c858a 100644
--- a/tools/libxl/libxl_create.c
+++ b/tools/libxl/libxl_create.c
@@ -904,10 +904,18 @@ static void domcreate_rebuild_done(libxl__egc *egc,
store_libxl_entry(gc, domid, &d_config->b_info);
- dcs->aodevs.size = d_config->num_disks;
+ if (d_config->c_info.type == LIBXL_DOMAIN_TYPE_HVM && !d_config->num_vkbs)
{
+ d_config->vkbs = libxl__zalloc(NOGC, sizeof(*d_config->vkbs));
+ libxl_device_vkb_init(&d_config->vkbs[0]);
+ d_config->num_vkbs = 1;
+ }
+
+ dcs->aodevs.size = d_config->num_disks + d_config->num_vkbs;
dcs->aodevs.callback = domcreate_launch_dm;
libxl__prepare_ao_devices(ao, &dcs->aodevs);
libxl__add_disks(egc, ao, domid, 0, d_config, &dcs->aodevs);
+ libxl__add_vkbs(egc, ao, domid, d_config->num_disks, d_config,
+ &dcs->aodevs);
return;
@@ -930,7 +938,7 @@ static void domcreate_launch_dm(libxl__egc *egc,
libxl__ao_devices *aodevs,
libxl_ctx *const ctx = CTX;
if (ret) {
- LOG(ERROR, "unable to add disk devices");
+ LOG(ERROR, "unable to add misc devices");
goto error_out;
}
for (i = 0; i < d_config->num_nics; i++) {
@@ -944,7 +952,6 @@ static void domcreate_launch_dm(libxl__egc *egc,
libxl__ao_devices *aodevs,
case LIBXL_DOMAIN_TYPE_HVM:
{
libxl__device_console console;
- libxl_device_vkb vkb;
ret = init_console_info(&console, 0);
if ( ret )
@@ -952,10 +959,6 @@ static void domcreate_launch_dm(libxl__egc *egc,
libxl__ao_devices *aodevs,
libxl__device_console_add(gc, domid, &console, state);
libxl__device_console_dispose(&console);
- libxl_device_vkb_init(&vkb);
- libxl_device_vkb_add(ctx, domid, &vkb);
- libxl_device_vkb_dispose(&vkb);
-
dcs->dmss.dm.guest_domid = domid;
if (libxl_defbool_val(d_config->b_info.device_model_stubdomain))
libxl__spawn_stub_dm(egc, &dcs->dmss);
@@ -970,7 +973,6 @@ static void domcreate_launch_dm(libxl__egc *egc,
libxl__ao_devices *aodevs,
for (i = 0; i < d_config->num_vfbs; i++) {
libxl_device_vfb_add(ctx, domid, &d_config->vfbs[i]);
- libxl_device_vkb_add(ctx, domid, &d_config->vkbs[i]);
}
ret = init_console_info(&console, 0);
diff --git a/tools/libxl/libxl_device.c b/tools/libxl/libxl_device.c
index 4c5a7e2..65cd264 100644
--- a/tools/libxl/libxl_device.c
+++ b/tools/libxl/libxl_device.c
@@ -482,6 +482,7 @@ void libxl__ao_devices_callback(libxl__egc *egc,
libxl__ao_device *aodev)
* The following functions are defined:
* libxl__add_disks
* libxl__add_nics
+ * libxl__add_vkbs
*/
#define DEFINE_DEVICES_ADD(type)
\
@@ -501,6 +502,7 @@ void libxl__ao_devices_callback(libxl__egc *egc,
libxl__ao_device *aodev)
DEFINE_DEVICES_ADD(disk)
DEFINE_DEVICES_ADD(nic)
+DEFINE_DEVICES_ADD(vkb)
#undef DEFINE_DEVICES_ADD
diff --git a/tools/libxl/libxl_dm.c b/tools/libxl/libxl_dm.c
index cbe518f..a6ee080 100644
--- a/tools/libxl/libxl_dm.c
+++ b/tools/libxl/libxl_dm.c
@@ -833,10 +833,12 @@ retry_transaction:
if (errno == EAGAIN)
goto retry_transaction;
- sdss->aodevs.size = dm_config->num_disks;
+ sdss->aodevs.size = dm_config->num_disks + dm_config->num_vkbs;
sdss->aodevs.callback = spawn_stub_launch_dm;
libxl__prepare_ao_devices(ao, &sdss->aodevs);
libxl__add_disks(egc, ao, dm_domid, 0, dm_config, &sdss->aodevs);
+ libxl__add_vkbs(egc, ao, dm_domid, dm_config->num_disks, dm_config,
+ &sdss->aodevs);
free(args);
return;
@@ -866,7 +868,7 @@ static void spawn_stub_launch_dm(libxl__egc *egc,
uint32_t dm_domid = sdss->pvqemu.guest_domid;
if (ret) {
- LOG(ERROR, "error connecting disk devices");
+ LOG(ERROR, "error connecting misc devices");
goto out;
}
@@ -880,9 +882,6 @@ static void spawn_stub_launch_dm(libxl__egc *egc,
ret = libxl_device_vfb_add(ctx, dm_domid, &dm_config->vfbs[0]);
if (ret)
goto out;
- ret = libxl_device_vkb_add(ctx, dm_domid, &dm_config->vkbs[0]);
- if (ret)
- goto out;
if (guest_config->b_info.u.hvm.serial)
num_console++;
diff --git a/tools/libxl/libxl_internal.h b/tools/libxl/libxl_internal.h
index cfe9dc0..41c5e5b 100644
--- a/tools/libxl/libxl_internal.h
+++ b/tools/libxl/libxl_internal.h
@@ -1909,6 +1909,11 @@ _hidden void libxl__device_nic_add(libxl__egc *egc,
uint32_t domid,
libxl_device_nic *nic,
libxl__ao_device *aodev);
+/* AO operation to connect a vkb device */
+_hidden void libxl__device_vkb_add(libxl__egc *egc, uint32_t domid,
+ libxl_device_vkb *vkb,
+ 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
@@ -2329,6 +2334,10 @@ _hidden void libxl__add_nics(libxl__egc *egc, libxl__ao
*ao, uint32_t domid,
int start, libxl_domain_config *d_config,
libxl__ao_devices *aodevs);
+_hidden void libxl__add_vkbs(libxl__egc *egc, libxl__ao *ao, uint32_t domid,
+ int start, libxl_domain_config *d_config,
+ libxl__ao_devices *aodevs);
+
/*----- device model creation -----*/
/* First layer; wraps libxl__spawn_spawn. */
diff --git a/tools/ocaml/libs/xl/xenlight_stubs.c
b/tools/ocaml/libs/xl/xenlight_stubs.c
index 0e9c65e..3d2493b 100644
--- a/tools/ocaml/libs/xl/xenlight_stubs.c
+++ b/tools/ocaml/libs/xl/xenlight_stubs.c
@@ -315,7 +315,7 @@ value stub_xl_device_vkb_add(value info, value domid)
device_vkb_val(&gc, &lg, &c_info, info);
INIT_CTX();
- ret = libxl_device_vkb_add(ctx, Int_val(domid), &c_info);
+ ret = libxl_device_vkb_add(ctx, Int_val(domid), &c_info, 0);
if (ret != 0)
failwith_xl("vkb_add", &lg);
FREE_CTX();
--
1.7.7.5 (Apple Git-26)
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