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ui/vdagent: add a migration blocker 

The current implementation lacks migration support. After migration,
vdagent support will be broken (even after a restart of the daemons).
Let's try to fix it in 6.2.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20210805135715.857938-19-marcandre.lureau@redhat.com>
Acked-by: Gerd Hoffmann <kraxel@redhat.com>
This commit is contained in:
Marc-André Lureau 2021-08-05 17:57:15 +04:00
parent 8038c5b646
commit 90208bc965
1 changed files with 12 additions and 0 deletions
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12
ui/vdagent.c
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@ -6,6 +6,7 @@
#include "qemu/option.h"
#include "qemu/units.h"
#include "hw/qdev-core.h"
#include "migration/blocker.h"
#include "ui/clipboard.h"
#include "ui/console.h"
#include "ui/input.h"
@ -23,6 +24,9 @@
struct VDAgentChardev {
Chardev parent;
/* TODO: migration isn't yet supported */
Error *migration_blocker;
/* config */
bool mouse;
bool clipboard;
@ -599,6 +603,10 @@ static void vdagent_chr_open(Chardev *chr,
return;
#endif
if (migrate_add_blocker(vd->migration_blocker, errp) != 0) {
return;
}
vd->mouse = VDAGENT_MOUSE_DEFAULT;
if (cfg->has_mouse) {
vd->mouse = cfg->mouse;
@ -832,14 +840,18 @@ static void vdagent_chr_init(Object *obj)
VDAgentChardev *vd = QEMU_VDAGENT_CHARDEV(obj);
buffer_init(&vd->outbuf, "vdagent-outbuf");
error_setg(&vd->migration_blocker,
"The vdagent chardev doesn't yet support migration");
}
static void vdagent_chr_fini(Object *obj)
{
VDAgentChardev *vd = QEMU_VDAGENT_CHARDEV(obj);
migrate_del_blocker(vd->migration_blocker);
vdagent_disconnect(vd);
buffer_free(&vd->outbuf);
error_free(vd->migration_blocker);
}
static const TypeInfo vdagent_chr_type_info = {