esp: fix migration version check in esp_is_version_5()

Commit 4e78f3bf35 "esp: defer command completion interrupt on incoming data
transfers" added a version check for use with VMSTATE_*_TEST macros to allow
migration from older QEMU versions. Unfortunately the version check fails to
work in its current form since if the VMStateDescription version_id is
incremented, the test returns false and so the fields are not included in the
outgoing migration stream.

Change the version check to use >= rather == to ensure that migration works
correctly when the ESPState VMStateDescription has version_id > 5.

Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Fixes: 4e78f3bf35 ("esp: defer command completion interrupt on incoming data transfers")
Message-Id: <20210613102614.5438-1-mark.cave-ayland@ilande.co.uk>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Mark Cave-Ayland 2021-06-13 11:26:14 +01:00 committed by Paolo Bonzini
parent c348458f35
commit 0bcd5a1894

View file

@ -1128,7 +1128,7 @@ static bool esp_is_version_5(void *opaque, int version_id)
ESPState *s = ESP(opaque);
version_id = MIN(version_id, s->mig_version_id);
return version_id == 5;
return version_id >= 5;
}
int esp_pre_save(void *opaque)