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authorLaurent Vivier2017-11-03 20:38:02 +0100
committerLaurent Vivier2018-01-23 14:20:52 +0100
commitbfdec7f80e639cb858ed7df77da763cca85e1e61 (patch)
tree940c52143e3ccd6e31ed0fb062be1d4037466723 /hw/core/qdev-fw.c
parentlinux-user: Add getcpu() support (diff)
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linux-user: remove nmi.c and fw-path-provider.c
linux-user binaries don't need firmware and NMI, so don't add them in this case, move QDEV firmware functions to qdev-fw.c Signed-off-by: Laurent Vivier <laurent@vivier.eu> Acked-by: Paolo Bonzini <pbonzini@redhat.com> Message-Id: <20171103193802.11876-1-laurent@vivier.eu>
Diffstat (limited to 'hw/core/qdev-fw.c')
-rw-r--r--hw/core/qdev-fw.c96
1 files changed, 96 insertions, 0 deletions
diff --git a/hw/core/qdev-fw.c b/hw/core/qdev-fw.c
new file mode 100644
index 0000000000..aa35e9d0ac
--- /dev/null
+++ b/hw/core/qdev-fw.c
@@ -0,0 +1,96 @@
+/*
+ * qdev fw helpers
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License,
+ * or (at your option) any later version.
+ *
+ * This program 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "qemu/osdep.h"
+#include "hw/qdev.h"
+#include "hw/fw-path-provider.h"
+
+const char *qdev_fw_name(DeviceState *dev)
+{
+ DeviceClass *dc = DEVICE_GET_CLASS(dev);
+
+ if (dc->fw_name) {
+ return dc->fw_name;
+ }
+
+ return object_get_typename(OBJECT(dev));
+}
+
+static char *bus_get_fw_dev_path(BusState *bus, DeviceState *dev)
+{
+ BusClass *bc = BUS_GET_CLASS(bus);
+
+ if (bc->get_fw_dev_path) {
+ return bc->get_fw_dev_path(dev);
+ }
+
+ return NULL;
+}
+
+static char *qdev_get_fw_dev_path_from_handler(BusState *bus, DeviceState *dev)
+{
+ Object *obj = OBJECT(dev);
+ char *d = NULL;
+
+ while (!d && obj->parent) {
+ obj = obj->parent;
+ d = fw_path_provider_try_get_dev_path(obj, bus, dev);
+ }
+ return d;
+}
+
+char *qdev_get_own_fw_dev_path_from_handler(BusState *bus, DeviceState *dev)
+{
+ Object *obj = OBJECT(dev);
+
+ return fw_path_provider_try_get_dev_path(obj, bus, dev);
+}
+
+static int qdev_get_fw_dev_path_helper(DeviceState *dev, char *p, int size)
+{
+ int l = 0;
+
+ if (dev && dev->parent_bus) {
+ char *d;
+ l = qdev_get_fw_dev_path_helper(dev->parent_bus->parent, p, size);
+ d = qdev_get_fw_dev_path_from_handler(dev->parent_bus, dev);
+ if (!d) {
+ d = bus_get_fw_dev_path(dev->parent_bus, dev);
+ }
+ if (d) {
+ l += snprintf(p + l, size - l, "%s", d);
+ g_free(d);
+ } else {
+ return l;
+ }
+ }
+ l += snprintf(p + l , size - l, "/");
+
+ return l;
+}
+
+char *qdev_get_fw_dev_path(DeviceState *dev)
+{
+ char path[128];
+ int l;
+
+ l = qdev_get_fw_dev_path_helper(dev, path, 128);
+
+ path[l - 1] = '\0';
+
+ return g_strdup(path);
+}