qemu-patch-raspberry4/include/hw/scsi
Mark Cave-Ayland 0bd005be78 esp: add vmstate_esp version to embedded ESPState
The QOM object representing ESPState is currently embedded within both the
SYSBUS_ESP and PCI_ESP devices with migration state handled by embedding
vmstate_esp within each device using VMSTATE_STRUCT.

Since the vmstate_esp fields are embedded directly within the migration
stream, the incoming vmstate_esp version_id is lost. The only version information
available is that from vmstate_sysbus_esp_scsi and vmstate_esp_pci_scsi, but
those versions represent their respective devices and not that of the underlying
ESPState.

Resolve this by adding a new version-dependent field in vmstate_sysbus_esp_scsi
and vmstate_esp_pci_scsi which stores the vmstate_esp version_id field within
ESPState to be used to allow migration from older QEMU versions.

Finally bump the vmstate_esp version to 5 to cover the upcoming ESPState changes
within this patch series.

Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <20210304221103.6369-5-mark.cave-ayland@ilande.co.uk>
2021-03-07 10:39:05 +00:00
..
emulation.h Normalize header guard symbol definition. 2019-05-13 08:58:55 +02:00
esp.h esp: add vmstate_esp version to embedded ESPState 2021-03-07 10:39:05 +00:00
scsi.h scsi: drop 'result' argument from command_complete callback 2021-02-25 14:14:32 +01:00