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authorPaolo Bonzini <pbonzini@redhat.com>2014-07-11 09:44:26 +0200
committerPaolo Bonzini <pbonzini@redhat.com>2014-08-06 17:53:05 +0200
commit5692399f0af2b48b164b3c0b5c4c532b186b33ae (patch)
treec0159e0e33570c8232489b2bf7e09d5a62f8ba33 /include/sysemu
parent41a1a9c42c4e0fb5f1b94aa8b72e42f66ebde3d9 (diff)
backends: Introduce chr-testdev
From: Paolo Bonzini <pbonzini@redhat.com> chr-testdev enables a virtio serial channel to be used for guest initiated qemu exits. hw/misc/debugexit already enables guest initiated qemu exits, but only for PC targets. chr-testdev supports any virtio-capable target. kvm-unit-tests/arm is already making use of this backend. Currently there is a single command implemented, "q". It takes a (prefix) argument for the exit code, thus an exit is implemented by writing, e.g. "1q", to the virtio-serial port. It can be used as: $QEMU ... \ -device virtio-serial-device \ -device virtserialport,chardev=ctd -chardev testdev,id=ctd or, use: $QEMU ... \ -device virtio-serial-device \ -device virtconsole,chardev=ctd -chardev testdev,id=ctd to bind it to virtio-serial port0. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Andrew Jones <drjones@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'include/sysemu')
-rw-r--r--include/sysemu/char.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/include/sysemu/char.h b/include/sysemu/char.h
index 0bbd631e72..98cd4c958e 100644
--- a/include/sysemu/char.h
+++ b/include/sysemu/char.h
@@ -358,6 +358,9 @@ CharDriverState *qemu_char_get_next_serial(void);
/* msmouse */
CharDriverState *qemu_chr_open_msmouse(void);
+/* testdev.c */
+CharDriverState *chr_testdev_init(void);
+
/* baum.c */
CharDriverState *chr_baum_init(void);