Commit bea048dc authored by Peter Maydell's avatar Peter Maydell
Browse files

Merge remote-tracking branch 'remotes/amit/tags/vser-for-2.7-1' into staging 



virtio-console: fix receiving data from guest

# gpg: Signature made Thu 11 Aug 2016 12:17:55 BST
# gpg:                using RSA key 0xEB0B4DFC657EF670
# gpg: Good signature from "Amit Shah <amit@amitshah.net>"
# gpg:                 aka "Amit Shah <amit@kernel.org>"
# gpg:                 aka "Amit Shah <amitshah@gmx.net>"
# Primary key fingerprint: 48CA 3722 5FE7 F4A8 B337  2735 1E9A 3B5F 8540 83B6
#      Subkey fingerprint: CC63 D332 AB8F 4617 4529  6534 EB0B 4DFC 657E F670

* remotes/amit/tags/vser-for-2.7-1:
  virtio-console: set frontend open permanently for console devs

Signed-off-by: default avatarPeter Maydell <peter.maydell@linaro.org>
parents 144a6db0 bce6261e

hw/char/virtio-console.c

+21 −4
Original line number Diff line number Diff line
@@ -85,8 +85,9 @@ static void set_guest_connected(VirtIOSerialPort *port, int guest_connected) 
{

    VirtConsole *vcon = VIRTIO_CONSOLE(port);

    DeviceState *dev = DEVICE(port);

    VirtIOSerialPortClass *k = VIRTIO_SERIAL_PORT_GET_CLASS(port);



    if (vcon->chr) {

    if (vcon->chr && !k->is_console) {

        qemu_chr_fe_set_open(vcon->chr, guest_connected);

    }
@@ -156,9 +157,25 @@ static void virtconsole_realize(DeviceState *dev, Error **errp) 
    }



    if (vcon->chr) {

        /*

         * For consoles we don't block guest data transfer just

         * because nothing is connected - we'll just let it go

         * whetherever the chardev wants - /dev/null probably.

         *

         * For serial ports we need 100% reliable data transfer

         * so we use the opened/closed signals from chardev to

         * trigger open/close of the device

         */

        if (k->is_console) {

            vcon->chr->explicit_fe_open = 0;

            qemu_chr_add_handlers(vcon->chr, chr_can_read, chr_read,

                                  NULL, vcon);

            virtio_serial_open(port);

        } else {

            vcon->chr->explicit_fe_open = 1;

        qemu_chr_add_handlers(vcon->chr, chr_can_read, chr_read, chr_event,

                              vcon);

            qemu_chr_add_handlers(vcon->chr, chr_can_read, chr_read,

                                  chr_event, vcon);

        }

    }

}