On Wed, 22 Jul 2020 at 09:31, Zeng Guang <guang.z...@intel.com> wrote:
>
> Currently edu device doesn't support live migration. Part of PCI
> configuration information would be lost after migration.
>
> PCI device state in source VM:
> Bus 0, device 3, function 0:
> Class 0255: PCI device 1234:11e8
> PCI subsystem 1af4:1100
> IRQ 11, pin A
> BAR0: 32 bit memory at 0xfea00000 [0xfeafffff].
> id ""
>
> PCI device state in destination VM:
> Bus 0, device 3, function 0:
> Class 0255: PCI device 1234:11e8
> PCI subsystem 1af4:1100
> IRQ 0, pin A
> BAR0: 32 bit memory at 0xffffffffffffffff [0x000ffffe].
> id ""
>
> Add VMState for edu device to support migration.
>
> Signed-off-by: Gao Chao <chao....@intel.com>
> Signed-off-by: Zeng Guang <guang.z...@intel.com>
> Reviewed-by: Wei Wang <wei.w.w...@intel.com>
Hi; thanks for adding migration support for this device.
> +static const VMStateDescription vmstate_edu = {
> + .name = "edu",
> + .version_id = 1,
> + .minimum_version_id = 1,
> + .fields = (VMStateField[]) {
> + VMSTATE_PCI_DEVICE(pdev, EduState),
This isn't the only state that the device has. You
also need to migrate:
stopping, addr4, fact, status, irq_status, the struct dma_state members,
the dma_timer, dma_buf and dma_mask.
thanks
-- PMM
