From: "Dr. David Alan Gilbert" <dgilbert@redhat.com>
To: ali saeedi <ali.saeedi56@gmail.com>
Cc: qemu-devel@nongnu.org
Subject: Re: [Qemu-devel] vmstate_save_state
Date: Mon, 8 May 2017 09:51:30 +0100 [thread overview]
Message-ID: <20170508085130.GD2446@work-vm> (raw)
In-Reply-To: <CAGKXQyfu6_wHmXiJZ2_19BpCkGJ60twdHQ74MV9=up7v-co1Jg@mail.gmail.com>
* ali saeedi (ali.saeedi56@gmail.com) wrote:
> what does "vmstate_save_state(f, &vmstate_configuration, &savevm_state, 0)"
> function call do in "qemu_savevm_state_header" function in savevm.c at line
> 968 ?
> why has "savevm_state" been passed to this function?
> thanks a lot
vmstate_save_state serialises a data structure to the migration stream
using a description. In this case it's saving some of the data in
'savevm_state' using 'vmstate_configuration'. If you follow
the two you can see that 'savevm_state' is of type 'SaveState'.
If you look at 'vmstate_configuration' it defines that two fields
from that strcture are saved 'len' and 'name' and also the
target_page_bits fields.
Dave
--
Dr. David Alan Gilbert / dgilbert@redhat.com / Manchester, UK
prev parent reply other threads:[~2017-05-08 8:51 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-05-06 11:33 [Qemu-devel] vmstate_save_state ali saeedi
2017-05-08 8:51 ` Dr. David Alan Gilbert [this message]
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