Re: [Qemu-devel] The first function called after migration for a block device

[Xiongzi Ge]

Sorry for that. I planed to use the existing method in qemu to add some new mechanism after migration.

Does qemu have a IPC channel to communicate during migration?

On Mon, Jun 30, 2014 at 11:13 AM, Paolo Bonzini <address@hidden> wrote:

Il 30/06/2014 16:47, Xiongzi Ge ha scritto:

Hi,
I mean this function will be called after migration to do something for
the block device. I tried and debugged the qemu code. (like you have a
qcow2 format device. This function will be called. We can put anything
we want here. We can reopen a new device.  We have a new format block
device which has a cache created by myself. I can modify and control the
cache after migration. Do you have any suggestions? Thanks. )

As long as the cache is entirely in QEMU, yes.  This was not what your earlier messages implied.

Paolo