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vhost: add vhost_has_free_slot() interface

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it will allow for other parts of QEMU check if it's safe
to map memory region during hotplug/runtime.
That way hotplug path will have a chance to cancel
hotplug operation instead of crashing in vhost_commit().

Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
This commit is contained in:
Igor Mammedov 2015-10-06 10:37:27 +02:00 • committed by Michael S. Tsirkin
parent 052bd52fa9
commit 2ce68e4cf5
7 changed files with 57 additions and 0 deletions
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6
stubs/vhost.c Normal file
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@ -0,0 +1,6 @@
#include "hw/virtio/vhost.h"
bool vhost_has_free_slot(void)
{
return true;
}