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[PATCH v2] spice: delay starting until display are initialized
From: |
marcandre . lureau |
Subject: |
[PATCH v2] spice: delay starting until display are initialized |
Date: |
Fri, 29 Jan 2021 19:23:51 +0400 |
From: Marc-André Lureau <marcandre.lureau@redhat.com>
QEMU used to run qemu_spice.display_init() before vm_start(), and
QXL/display interfaces where started then. Now, vm_start() happens
before QXL/display interfaces are added and Spice server doesn't
automatically start them in this case (fixed in spice git)
Fixes Spice regression introduced after 5.2, with refactoring commits
b4e1a34211 ("vl: remove separate preconfig main_loop") and
facf7c60ee ("vl: initialize displays _after_ exiting preconfiguration"),
probably others.
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
---
include/ui/qemu-spice.h | 1 +
ui/spice-core.c | 9 ++++++++-
ui/spice-display.c | 2 ++
3 files changed, 11 insertions(+), 1 deletion(-)
diff --git a/include/ui/qemu-spice.h b/include/ui/qemu-spice.h
index 2beb792972..71ecd6cfd1 100644
--- a/include/ui/qemu-spice.h
+++ b/include/ui/qemu-spice.h
@@ -28,6 +28,7 @@
void qemu_spice_input_init(void);
void qemu_spice_display_init(void);
+void qemu_spice_display_init_done(void);
bool qemu_spice_have_display_interface(QemuConsole *con);
int qemu_spice_add_display_interface(QXLInstance *qxlin, QemuConsole *con);
int qemu_spice_migrate_info(const char *hostname, int port, int tls_port,
diff --git a/ui/spice-core.c b/ui/spice-core.c
index 514c0f9754..beee932f55 100644
--- a/ui/spice-core.c
+++ b/ui/spice-core.c
@@ -625,6 +625,14 @@ static void vm_change_state_handler(void *opaque, int
running,
}
}
+void qemu_spice_display_init_done(void)
+{
+ if (runstate_is_running()) {
+ qemu_spice_display_start();
+ }
+ qemu_add_vm_change_state_handler(vm_change_state_handler, NULL);
+}
+
static void qemu_spice_init(void)
{
QemuOpts *opts = QTAILQ_FIRST(&qemu_spice_opts.head);
@@ -796,7 +804,6 @@ static void qemu_spice_init(void)
qemu_spice_input_init();
- qemu_add_vm_change_state_handler(vm_change_state_handler, NULL);
qemu_spice_display_stop();
g_free(x509_key_file);
diff --git a/ui/spice-display.c b/ui/spice-display.c
index 0178d5766d..3d3e3bcb22 100644
--- a/ui/spice-display.c
+++ b/ui/spice-display.c
@@ -1188,4 +1188,6 @@ void qemu_spice_display_init(void)
}
qemu_spice_display_init_one(con);
}
+
+ qemu_spice_display_init_done();
}
--
2.29.0
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