From: Bhupinder Thakur <bhupinder.thakur@linaro.org>
To: xen-devel@lists.xenproject.org
Cc: Wei Liu <wei.liu2@citrix.com>,
Julien Grall <julien.grall@arm.com>,
Stefano Stabellini <sstabellini@kernel.org>,
Ian Jackson <ian.jackson@eu.citrix.com>
Subject: [PATCH 07/14 v4] xen/arm: vpl011: Add a new vuart node in the xenstore
Date: Tue, 6 Jun 2017 22:55:22 +0530 [thread overview]
Message-ID: <1496769929-23355-8-git-send-email-bhupinder.thakur@linaro.org> (raw)
In-Reply-To: <1496769929-23355-1-git-send-email-bhupinder.thakur@linaro.org>
Add a new vuart console node to xenstore. This node is added at
/local/domain/$DOMID/vuart/0.
The node contains information such as the ring-ref, event channel,
buffer limit and type of console.
Xenconsole reads the node information to setup the ring buffer and
event channel for sending/receiving vuart data.
Signed-off-by: Bhupinder Thakur <bhupinder.thakur@linaro.org>
---
CC: ij
CC: wl
CC: ss
CC: jg
Changes since v3:
- Added a backend node for vpl011.
- Removed libxl__device_vuart_add() for HVM guest. It is called only for PV guest.
tools/libxl/libxl_console.c | 44 ++++++++++++++++++++++++++++++++++++
tools/libxl/libxl_create.c | 12 ++++++++--
tools/libxl/libxl_device.c | 9 ++++++--
tools/libxl/libxl_internal.h | 4 ++++
tools/libxl/libxl_types_internal.idl | 1 +
5 files changed, 66 insertions(+), 4 deletions(-)
diff --git a/tools/libxl/libxl_console.c b/tools/libxl/libxl_console.c
index 853be15..259f865 100644
--- a/tools/libxl/libxl_console.c
+++ b/tools/libxl/libxl_console.c
@@ -344,6 +344,50 @@ out:
return rc;
}
+int libxl__device_vuart_add(libxl__gc *gc, uint32_t domid,
+ libxl__device_console *console,
+ libxl__domain_build_state *state,
+ libxl__device *device)
+{
+ flexarray_t *ro_front;
+ flexarray_t *back;
+ int rc;
+
+ ro_front = flexarray_make(gc, 16, 1);
+ back = flexarray_make(gc, 16, 1);
+
+ device->backend_devid = console->devid;
+ device->backend_domid = console->backend_domid;
+ device->backend_kind = LIBXL__DEVICE_KIND_VUART;
+ device->devid = console->devid;
+ device->domid = domid;
+ device->kind = LIBXL__DEVICE_KIND_VUART;
+
+ flexarray_append(back, "frontend-id");
+ flexarray_append(back, GCSPRINTF("%d", domid));
+ flexarray_append(back, "online");
+ flexarray_append(back, "1");
+ flexarray_append(back, "state");
+ flexarray_append(back, GCSPRINTF("%d", XenbusStateInitialising));
+ flexarray_append(back, "protocol");
+ flexarray_append(back, LIBXL_XENCONSOLE_PROTOCOL);
+
+ flexarray_append(ro_front, "port");
+ flexarray_append(ro_front, GCSPRINTF("%"PRIu32, state->vuart_port));
+ flexarray_append(ro_front, "ring-ref");
+ flexarray_append(ro_front, GCSPRINTF("%lu", state->vuart_gfn));
+ flexarray_append(ro_front, "limit");
+ flexarray_append(ro_front, GCSPRINTF("%d", LIBXL_XENCONSOLE_LIMIT));
+ flexarray_append(ro_front, "type");
+ flexarray_append(ro_front, "xenconsoled");
+
+ rc = libxl__device_generic_add(gc, XBT_NULL, device,
+ libxl__xs_kvs_of_flexarray(gc, back),
+ NULL,
+ libxl__xs_kvs_of_flexarray(gc, ro_front));
+ return rc;
+}
+
int libxl__init_console_from_channel(libxl__gc *gc,
libxl__device_console *console,
int dev_num,
diff --git a/tools/libxl/libxl_create.c b/tools/libxl/libxl_create.c
index bffbc45..091a661 100644
--- a/tools/libxl/libxl_create.c
+++ b/tools/libxl/libxl_create.c
@@ -1367,14 +1367,22 @@ static void domcreate_launch_dm(libxl__egc *egc, libxl__multidev *multidev,
}
case LIBXL_DOMAIN_TYPE_PV:
{
- libxl__device_console console;
- libxl__device device;
+ libxl__device_console console, vuart;
+ libxl__device device, vuart_device;
for (i = 0; i < d_config->num_vfbs; i++) {
libxl__device_vfb_add(gc, domid, &d_config->vfbs[i]);
libxl__device_vkb_add(gc, domid, &d_config->vkbs[i]);
}
+ if (d_config->b_info.arch_arm.vuart)
+ {
+ init_console_info(gc, &vuart, 0);
+ vuart.backend_domid = state->console_domid;
+ libxl__device_vuart_add(gc, domid, &vuart, state, &vuart_device);
+ libxl__device_console_dispose(&vuart);
+ }
+
init_console_info(gc, &console, 0);
console.backend_domid = state->console_domid;
libxl__device_console_add(gc, domid, &console, state, &device);
diff --git a/tools/libxl/libxl_device.c b/tools/libxl/libxl_device.c
index 5e96676..b110041 100644
--- a/tools/libxl/libxl_device.c
+++ b/tools/libxl/libxl_device.c
@@ -26,6 +26,9 @@ static char *libxl__device_frontend_path(libxl__gc *gc, libxl__device *device)
if (device->kind == LIBXL__DEVICE_KIND_CONSOLE && device->devid == 0)
return GCSPRINTF("%s/console", dom_path);
+ if (device->kind == LIBXL__DEVICE_KIND_VUART)
+ return GCSPRINTF("%s/vuart/%d", dom_path, device->devid);
+
return GCSPRINTF("%s/device/%s/%d", dom_path,
libxl__device_kind_to_string(device->kind),
device->devid);
@@ -170,7 +173,8 @@ retry_transaction:
* historically contained other information, such as the
* vnc-port, which we don't want the guest fiddling with.
*/
- if (device->kind == LIBXL__DEVICE_KIND_CONSOLE && device->devid == 0)
+ if ((device->kind == LIBXL__DEVICE_KIND_CONSOLE && device->devid == 0) ||
+ (device->kind == LIBXL__DEVICE_KIND_VUART))
xs_set_permissions(ctx->xsh, t, frontend_path,
ro_frontend_perms, ARRAY_SIZE(ro_frontend_perms));
else
@@ -800,7 +804,8 @@ void libxl__devices_destroy(libxl__egc *egc, libxl__devices_remove_state *drs)
dev->domid = domid;
dev->kind = kind;
dev->devid = atoi(devs[j]);
- if (dev->backend_kind == LIBXL__DEVICE_KIND_CONSOLE) {
+ if (dev->backend_kind == LIBXL__DEVICE_KIND_CONSOLE ||
+ dev->backend_kind == LIBXL__DEVICE_KIND_VUART) {
/* Currently console devices can be destroyed
* synchronously by just removing xenstore entries,
* this is what libxl__device_destroy does.
diff --git a/tools/libxl/libxl_internal.h b/tools/libxl/libxl_internal.h
index 4e2c247..7a22db0 100644
--- a/tools/libxl/libxl_internal.h
+++ b/tools/libxl/libxl_internal.h
@@ -1202,6 +1202,10 @@ _hidden int libxl__device_console_add(libxl__gc *gc, uint32_t domid,
libxl__device_console *console,
libxl__domain_build_state *state,
libxl__device *device);
+_hidden int libxl__device_vuart_add(libxl__gc *gc, uint32_t domid,
+ libxl__device_console *console,
+ libxl__domain_build_state *state,
+ libxl__device *device);
/* Returns 1 if device exists, 0 if not, ERROR_* (<0) on error. */
_hidden int libxl__device_exists(libxl__gc *gc, xs_transaction_t t,
diff --git a/tools/libxl/libxl_types_internal.idl b/tools/libxl/libxl_types_internal.idl
index 7dc4d0f..c463c33 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, "VUART"),
])
libxl__console_backend = Enumeration("console_backend", [
--
2.7.4
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next prev parent reply other threads:[~2017-06-06 17:25 UTC|newest]
Thread overview: 65+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-06-06 17:25 [PATCH 00/14 v4] PL011 emulation support in Xen Bhupinder Thakur
2017-06-06 17:25 ` [PATCH 01/14 v4] xen/arm: vpl011: Move vgic register access functions to vreg.h Bhupinder Thakur
2017-06-09 12:49 ` Julien Grall
2017-06-06 17:25 ` [PATCH 02/14 v4] xen/arm: vpl011: Define generic vreg_reg* access functions in vreg.h Bhupinder Thakur
2017-06-09 12:54 ` Julien Grall
2017-06-19 9:33 ` Andre Przywara
2017-06-19 16:53 ` Bhupinder Thakur
2017-06-19 16:59 ` Andre Przywara
2017-06-06 17:25 ` [PATCH 03/14 v4] xen/arm: vpl011: Add pl011 uart emulation in Xen Bhupinder Thakur
2017-06-06 23:02 ` Stefano Stabellini
2017-06-09 13:15 ` Julien Grall
2017-06-09 18:02 ` Stefano Stabellini
2017-06-13 8:58 ` Bhupinder Thakur
2017-06-13 9:25 ` Julien Grall
2017-06-09 13:54 ` Julien Grall
2017-06-13 10:57 ` Bhupinder Thakur
2017-06-13 12:44 ` Julien Grall
2017-06-13 17:50 ` Stefano Stabellini
2017-06-14 5:47 ` Bhupinder Thakur
2017-06-14 9:33 ` Julien Grall
2017-06-19 10:14 ` Andre Przywara
2017-06-22 5:16 ` Bhupinder Thakur
2017-06-23 12:45 ` Julien Grall
2017-06-06 17:25 ` [PATCH 04/14 v4] xen/arm: vpl011: Add support for vuart in libxl Bhupinder Thakur
2017-06-06 23:07 ` Stefano Stabellini
2017-06-06 17:25 ` [PATCH 05/14 v4] xen/arm: vpl011: Allocate a new GFN in the toolstack for vuart Bhupinder Thakur
2017-06-06 23:17 ` Stefano Stabellini
2017-06-07 16:43 ` Wei Liu
2017-06-06 17:25 ` [PATCH 06/14 v4] xen/arm: vpl011: Add a new domctl API to initialize vpl011 Bhupinder Thakur
2017-06-06 23:26 ` Stefano Stabellini
2017-06-09 14:06 ` Julien Grall
2017-06-09 18:32 ` Stefano Stabellini
2017-06-14 7:35 ` Bhupinder Thakur
2017-06-14 8:34 ` Bhupinder Thakur
2017-06-09 14:13 ` Julien Grall
2017-06-14 9:16 ` Bhupinder Thakur
2017-06-14 10:15 ` Julien Grall
2017-06-15 6:33 ` Bhupinder Thakur
2017-06-19 10:59 ` Bhupinder Thakur
2017-06-19 11:01 ` Julien Grall
2017-06-19 11:47 ` Wei Liu
2017-06-19 13:11 ` Bhupinder Thakur
2017-06-20 11:16 ` Julien Grall
2017-06-20 11:42 ` Wei Liu
2017-06-21 10:18 ` Bhupinder Thakur
2017-06-06 17:25 ` Bhupinder Thakur [this message]
2017-06-06 23:38 ` [PATCH 07/14 v4] xen/arm: vpl011: Add a new vuart node in the xenstore Stefano Stabellini
2017-06-06 17:25 ` [PATCH 08/14 v4] xen/arm: vpl011: Modify xenconsole to define and use a new console structure Bhupinder Thakur
2017-06-07 1:13 ` Stefano Stabellini
2017-06-06 17:25 ` [PATCH 09/14 v4] xen/arm: vpl011: Modify xenconsole functions to take console structure as input Bhupinder Thakur
2017-06-07 0:43 ` Stefano Stabellini
2017-06-06 17:25 ` [PATCH 10/14 v4] xen/arm: vpl011: Modify xenconsole to support multiple consoles Bhupinder Thakur
2017-06-07 1:03 ` Stefano Stabellini
2017-06-07 3:51 ` Bhupinder Thakur
2017-06-07 16:46 ` Wei Liu
2017-06-07 17:54 ` Stefano Stabellini
2017-06-06 17:25 ` [PATCH 11/14 v4] xen/arm: vpl011: Add support for vuart console in xenconsole Bhupinder Thakur
2017-06-07 1:08 ` Stefano Stabellini
2017-06-07 16:44 ` Wei Liu
2017-06-06 17:25 ` [PATCH 12/14 v4] xen/arm: vpl011: Add a new vuart console type to xenconsole client Bhupinder Thakur
2017-06-06 23:41 ` Stefano Stabellini
2017-06-06 17:25 ` [PATCH 13/14 v4] xen/arm: vpl011: Add a pl011 uart DT node in the guest device tree Bhupinder Thakur
2017-06-06 17:25 ` [PATCH 14/14 v4] xen/arm: vpl011: Update documentation for vuart console support Bhupinder Thakur
2017-06-09 13:58 ` [PATCH 00/14 v4] PL011 emulation support in Xen Julien Grall
-- strict thread matches above, loose matches on Subject: below --
2017-06-06 10:03 [PATCH 07/14 v4] xen/arm: vpl011: Add a new vuart node in the xenstore Bhupinder Thakur
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