xen_console: support the new extended xenstore protocol
Since CS 21994 on xen-unstable.hg and CS
466608f3a32e1f9808acdf832a5843af37e5fcec on qemu-xen-unstable.git, few
changes have been introduced to the PV console xenstore protocol, as
described by the document docs/misc/console.txt under xen-unstable.hg.
From the Qemu point of view, very few modifications are needed to
correctly support the protocol: read from xenstore the "output" node
that tell us what the output of the PV console is going to be.
In case the output is a tty, write to xenstore the device name.
Changes in v2:
- fix error paths: free malloc'ed strings and close the xenstore
connection before returning;
- remove useless snprintf in xenstore_store_pv_console_info if i == 0.
Changes in v3:
- replace xs_daemon_open/xs_daemon_close with xs_open/xs_close.
Changes in v4:
- add a compatibility implementation of xs_open/xs_close.
Changes in v5:
- fix code style.
[agraf] fix build error due to missing stub
Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
diff --git a/xen-stub.c b/xen-stub.c
index a4f35a1..efe2ab5 100644
--- a/xen-stub.c
+++ b/xen-stub.c
@@ -9,6 +9,10 @@
#include "qemu-common.h"
#include "hw/xen.h"
+void xenstore_store_pv_console_info(int i, CharDriverState *chr)
+{
+}
+
int xen_pci_slot_get_pirq(PCIDevice *pci_dev, int irq_num)
{
return -1;
