[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[Qemu-devel] [PATCH v2 5/5] xenfb: Add "feature-no-console"
From: |
Owen smith |
Subject: |
[Qemu-devel] [PATCH v2 5/5] xenfb: Add "feature-no-console" |
Date: |
Wed, 17 Sep 2014 15:30:42 +0100 |
Added feature to allow vkbd connection without waiting for vfb device.
Windows PV frontend requires connection without a vfb device, Ubuntu HVM
would not start correctly without the wait for vfb device.
backend: feature-no-console
Value: 0/1 (boolean)
Default Value: 0
A value of "1" indicates that the backend supports vkbd devices
without waiting for the corresponding vfb device. Frontends
set "request-no-console" before connect to allow the backend to
connect without waiting for the vfb device.
frontend: request-no-console
Value: 0/1 (boolean)
Default Value: 0
A frontend sets a value of "1" to prevent the backend waiting for
the vfb device to become available and attach to a console.
Signed-off-by: Owen smith <address@hidden>
---
hw/display/xenfb.c | 12 ++++++++++--
1 file changed, 10 insertions(+), 2 deletions(-)
diff --git a/hw/display/xenfb.c b/hw/display/xenfb.c
index 0794075..501fe72 100644
--- a/hw/display/xenfb.c
+++ b/hw/display/xenfb.c
@@ -390,6 +390,7 @@ static int input_init(struct XenDevice *xendev)
{
xenstore_write_be_int(xendev, "feature-abs-pointer", 1);
xenstore_write_be_int(xendev, "feature-no-abs-rescale", 1);
+ xenstore_write_be_int(xendev, "feature-no-console", 1);
return 0;
}
@@ -399,8 +400,15 @@ static int input_initialise(struct XenDevice *xendev)
int rc;
if (!in->c.con) {
- xen_be_printf(xendev, 1, "ds not set (yet)\n");
- return -1;
+ int no_console;
+ rc = xenstore_read_fe_int(xendev, "request-no-console", &no_console);
+ if (rc == -1) {
+ no_console = 0;
+ }
+ if (!no_console) {
+ xen_be_printf(xendev, 1, "ds not set (yet)\n");
+ return -1;
+ }
}
rc = common_bind(&in->c);
--
2.1.0