When resuming after a migration, the backend sends CMD_INIT to the
emulator from the startup callback, then it sends the migration state
from the vmstate to the emulator, then it sends CMD_INIT again. Skip the
first CMD_INIT during a migration to avoid initializing the TPM twice.
Signed-off-by: Ross Lagerwall <ross.lagerwall@citrix.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Tested-by: Stefan Berger <stefanb@linux.ibm.com>
Signed-off-by: Stefan Berger <stefanb@linux.ibm.com>
#include "qemu/sockets.h"
#include "qemu/lockable.h"
#include "io/channel-socket.h"
+#include "sysemu/runstate.h"
#include "sysemu/tpm_backend.h"
#include "sysemu/tpm_util.h"
#include "tpm_int.h"
static int tpm_emulator_startup_tpm(TPMBackend *tb, size_t buffersize)
{
+ /* TPM startup will be done from post_load hook */
+ if (runstate_check(RUN_STATE_INMIGRATE)) {
+ if (buffersize != 0) {
+ return tpm_emulator_set_buffer_size(tb, buffersize, NULL);
+ }
+
+ return 0;
+ }
+
return tpm_emulator_startup_tpm_resume(tb, buffersize, false);
}