@@ -173,7 +173,7 @@ obj-y = vl.o monitor.o pci.o isa_mmio.o machine.o \
gdbstub.o gdbstub-xml.o
# virtio has to be here due to weird dependency between PCI and virtio-net.
# need to fix this properly
-obj-y += virtio-blk.o virtio-balloon.o virtio-net.o virtio-console.o virtio-console-bus.o virtio-pci.o
+obj-y += virtio-blk.o virtio-balloon.o virtio-net.o virtio-console.o virtio-console-port.o virtio-console-bus.o virtio-pci.o
obj-$(CONFIG_KVM) += kvm.o kvm-all.o
LIBS+=-lz
new file mode 100644
@@ -0,0 +1,54 @@
+/*
+ * Virtio Serial Port
+ *
+ * Copyright Red Hat, Inc. 2009
+ *
+ * Authors:
+ * Amit Shah <amit.shah@redhat.com>
+ *
+ * This work is licensed under the terms of the GNU GPL, version 2. See
+ * the COPYING file in the top-level directory.
+ *
+ */
+
+#include "hw.h"
+#include "qemu-char.h"
+#include "virtio-console.h"
+
+typedef struct VirtIOConsole
+{
+ VirtConPort port;
+} VirtIOConsole;
+
+static size_t flush_buf(VirtConPort *port, const uint8_t *buf, size_t len)
+{
+ return qemu_chr_write(port->chr, buf, len);
+}
+
+static int vcon_port_initfn(VirtConDevice *dev)
+{
+ VirtConPort *port = DO_UPCAST(VirtConPort, dev, &dev->qdev);
+
+ port->info = dev->info;
+
+ return 0;
+}
+
+static VirtConPortInfo virtcon_port_info = {
+ .qdev.name = "virtconport",
+ .qdev.size = sizeof(VirtConPort),
+ .init = vcon_port_initfn,
+ .have_data = flush_buf,
+ .qdev.props = (Property[]) {
+ DEFINE_PROP_CHR("chardev", VirtConPort, chr),
+ DEFINE_PROP_STRING("name", VirtConPort, name),
+ DEFINE_PROP_INT32("flush_buffers", VirtConPort, flush_buffers, 0),
+ DEFINE_PROP_END_OF_LIST(),
+ },
+};
+
+static void virtcon_port_register(void)
+{
+ virtcon_port_qdev_register(&virtcon_port_info);
+}
+device_init(virtcon_port_register)
This is a new device that uses the virtio-console bus. Sample uses for such a device can be obtaining info from the guest like the file systems used, apps installed, etc. for offline usage and logged-in users, clipboard copy-paste, etc. for online usage. For requirements, use-cases and some history see http://www.linux-kvm.org/page/VMchannel_Requirements Signed-off-by: Amit Shah <amit.shah@redhat.com> --- Makefile.target | 2 +- hw/virtio-console-port.c | 54 ++++++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 55 insertions(+), 1 deletions(-) create mode 100644 hw/virtio-console-port.c