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[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [Xen-devel] [PATCH 02/19] xen: Create a new file xen_frontend.c
Its purpose is to store frontend related functions.
Signed-off-by: Quan Xu <quan.xu@xxxxxxxxx>
Signed-off-by: Emil Condrea <emilcondrea@xxxxxxxxx>
---
hw/block/xen_disk.c | 1 +
hw/display/xenfb.c | 1 +
hw/net/xen_nic.c | 1 +
hw/xen/Makefile.objs | 2 +-
hw/xen/xen_backend.c | 47 +----------------------------
hw/xen/xen_frontend.c | 70 +++++++++++++++++++++++++++++++++++++++++++
include/hw/xen/xen_backend.h | 3 --
include/hw/xen/xen_frontend.h | 10 +++++++
8 files changed, 85 insertions(+), 50 deletions(-)
create mode 100644 hw/xen/xen_frontend.c
create mode 100644 include/hw/xen/xen_frontend.h
diff --git a/hw/block/xen_disk.c b/hw/block/xen_disk.c
index 90aca73..28fbf24 100644
--- a/hw/block/xen_disk.c
+++ b/hw/block/xen_disk.c
@@ -25,6 +25,7 @@
#include "hw/hw.h"
#include "hw/xen/xen_backend.h"
+#include "hw/xen/xen_frontend.h"
#include "xen_blkif.h"
#include "sysemu/blockdev.h"
#include "sysemu/block-backend.h"
diff --git a/hw/display/xenfb.c b/hw/display/xenfb.c
index 46b7d5e..5751113 100644
--- a/hw/display/xenfb.c
+++ b/hw/display/xenfb.c
@@ -30,6 +30,7 @@
#include "ui/console.h"
#include "sysemu/char.h"
#include "hw/xen/xen_backend.h"
+#include "hw/xen/xen_frontend.h"
#include <xen/event_channel.h>
#include <xen/io/fbif.h>
diff --git a/hw/net/xen_nic.c b/hw/net/xen_nic.c
index 0b4ddae..bdfa789 100644
--- a/hw/net/xen_nic.c
+++ b/hw/net/xen_nic.c
@@ -29,6 +29,7 @@
#include "net/checksum.h"
#include "net/util.h"
#include "hw/xen/xen_backend.h"
+#include "hw/xen/xen_frontend.h"
#include <xen/io/netif.h>
diff --git a/hw/xen/Makefile.objs b/hw/xen/Makefile.objs
index 591cdc2..1000294 100644
--- a/hw/xen/Makefile.objs
+++ b/hw/xen/Makefile.objs
@@ -1,5 +1,5 @@
# xen backend driver support
-common-obj-$(CONFIG_XEN_BACKEND) += xen_backend.o xen_devconfig.o xen_pvdev.o
+common-obj-$(CONFIG_XEN_BACKEND) += xen_backend.o xen_frontend.o
xen_devconfig.o xen_pvdev.o
obj-$(CONFIG_XEN_PCI_PASSTHROUGH) += xen-host-pci-device.o
obj-$(CONFIG_XEN_PCI_PASSTHROUGH) += xen_pt.o xen_pt_config_init.o
xen_pt_graphics.o xen_pt_msi.o
diff --git a/hw/xen/xen_backend.c b/hw/xen/xen_backend.c
index a251a4a..7a83a7d 100644
--- a/hw/xen/xen_backend.c
+++ b/hw/xen/xen_backend.c
@@ -30,6 +30,7 @@
#include "sysemu/char.h"
#include "qemu/log.h"
#include "hw/xen/xen_backend.h"
+#include "hw/xen/xen_frontend.h"
#include "hw/xen/xen_pvdev.h"
#include <xen/grant_table.h>
@@ -124,21 +125,6 @@ int xenstore_read_be_int(struct XenDevice *xendev, const
char *node, int *ival)
return xenstore_read_int(xendev->be, node, ival);
}
-char *xenstore_read_fe_str(struct XenDevice *xendev, const char *node)
-{
- return xenstore_read_str(xendev->fe, node);
-}
-
-int xenstore_read_fe_int(struct XenDevice *xendev, const char *node, int *ival)
-{
- return xenstore_read_int(xendev->fe, node, ival);
-}
-
-int xenstore_read_fe_uint64(struct XenDevice *xendev, const char *node,
uint64_t *uval)
-{
- return xenstore_read_uint64(xendev->fe, node, uval);
-}
-
/* ------------------------------------------------------------- */
int xen_be_set_state(struct XenDevice *xendev, enum xenbus_state state)
@@ -301,37 +287,6 @@ static void xen_be_backend_changed(struct XenDevice
*xendev, const char *node)
}
}
-static void xen_be_frontend_changed(struct XenDevice *xendev, const char *node)
-{
- int fe_state;
-
- if (node == NULL || strcmp(node, "state") == 0) {
- if (xenstore_read_fe_int(xendev, "state", &fe_state) == -1) {
- fe_state = XenbusStateUnknown;
- }
- if (xendev->fe_state != fe_state) {
- xen_be_printf(xendev, 1, "frontend state: %s -> %s\n",
- xenbus_strstate(xendev->fe_state),
- xenbus_strstate(fe_state));
- }
- xendev->fe_state = fe_state;
- }
- if (node == NULL || strcmp(node, "protocol") == 0) {
- g_free(xendev->protocol);
- xendev->protocol = xenstore_read_fe_str(xendev, "protocol");
- if (xendev->protocol) {
- xen_be_printf(xendev, 1, "frontend protocol: %s\n",
xendev->protocol);
- }
- }
-
- if (node) {
- xen_be_printf(xendev, 2, "frontend update: %s\n", node);
- if (xendev->ops->frontend_changed) {
- xendev->ops->frontend_changed(xendev, node);
- }
- }
-}
-
/* ------------------------------------------------------------- */
/* Check for possible state transitions and perform them. */
diff --git a/hw/xen/xen_frontend.c b/hw/xen/xen_frontend.c
new file mode 100644
index 0000000..b4bf8da
--- /dev/null
+++ b/hw/xen/xen_frontend.c
@@ -0,0 +1,70 @@
+/*
+ * Xen frontend driver infrastructure
+ *
+ * (c) 2008 Gerd Hoffmann <kraxel@xxxxxxxxxx>
+ *
+ * This library 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; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library 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.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, see <http://www.gnu.org/licenses/>
+ */
+
+#include "qemu/osdep.h"
+
+#include "hw/xen/xen_pvdev.h"
+#include "hw/xen/xen_frontend.h"
+#include "hw/xen/xen_backend.h"
+
+char *xenstore_read_fe_str(struct XenDevice *xendev, const char *node)
+{
+ return xenstore_read_str(xendev->fe, node);
+}
+
+int xenstore_read_fe_int(struct XenDevice *xendev, const char *node, int *ival)
+{
+ return xenstore_read_int(xendev->fe, node, ival);
+}
+
+int xenstore_read_fe_uint64(struct XenDevice *xendev, const char *node,
uint64_t *uval)
+{
+ return xenstore_read_uint64(xendev->fe, node, uval);
+}
+
+void xen_be_frontend_changed(struct XenDevice *xendev, const char *node)
+{
+ int fe_state;
+
+ if (node == NULL || strcmp(node, "state") == 0) {
+ if (xenstore_read_fe_int(xendev, "state", &fe_state) == -1) {
+ fe_state = XenbusStateUnknown;
+ }
+ if (xendev->fe_state != fe_state) {
+ xen_be_printf(xendev, 1, "frontend state: %s -> %s\n",
+ xenbus_strstate(xendev->fe_state),
+ xenbus_strstate(fe_state));
+ }
+ xendev->fe_state = fe_state;
+ }
+ if (node == NULL || strcmp(node, "protocol") == 0) {
+ g_free(xendev->protocol);
+ xendev->protocol = xenstore_read_fe_str(xendev, "protocol");
+ if (xendev->protocol) {
+ xen_be_printf(xendev, 1, "frontend protocol: %s\n",
xendev->protocol);
+ }
+ }
+
+ if (node) {
+ xen_be_printf(xendev, 2, "frontend update: %s\n", node);
+ if (xendev->ops->frontend_changed) {
+ xendev->ops->frontend_changed(xendev, node);
+ }
+ }
+}
diff --git a/include/hw/xen/xen_backend.h b/include/hw/xen/xen_backend.h
index 0f009e3..0daaf7c 100644
--- a/include/hw/xen/xen_backend.h
+++ b/include/hw/xen/xen_backend.h
@@ -19,9 +19,6 @@ int xenstore_write_be_int(struct XenDevice *xendev, const
char *node, int ival);
int xenstore_write_be_int64(struct XenDevice *xendev, const char *node,
int64_t ival);
char *xenstore_read_be_str(struct XenDevice *xendev, const char *node);
int xenstore_read_be_int(struct XenDevice *xendev, const char *node, int
*ival);
-char *xenstore_read_fe_str(struct XenDevice *xendev, const char *node);
-int xenstore_read_fe_int(struct XenDevice *xendev, const char *node, int
*ival);
-int xenstore_read_fe_uint64(struct XenDevice *xendev, const char *node,
uint64_t *uval);
struct XenDevice *xen_be_find_xendev(const char *type, int dom, int dev);
void xen_be_check_state(struct XenDevice *xendev);
diff --git a/include/hw/xen/xen_frontend.h b/include/hw/xen/xen_frontend.h
new file mode 100644
index 0000000..46485b9
--- /dev/null
+++ b/include/hw/xen/xen_frontend.h
@@ -0,0 +1,10 @@
+#ifndef QEMU_HW_XEN_FRONTEND_H
+#define QEMU_HW_XEN_FRONTEND_H 1
+
+char *xenstore_read_fe_str(struct XenDevice *xendev, const char *node);
+int xenstore_read_fe_int(struct XenDevice *xendev, const char *node, int
*ival);
+int xenstore_read_fe_uint64(struct XenDevice *xendev, const char *node,
uint64_t *uval);
+
+void xen_be_frontend_changed(struct XenDevice *xendev, const char *node);
+
+#endif /* QEMU_HW_XEN_FRONTEND_H */
--
1.9.1
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