From: Peter Xu <peterx@redhat.com>
To: Steve Sistare <steven.sistare@oracle.com>
Cc: qemu-devel@nongnu.org, Fabiano Rosas <farosas@suse.de>,
David Hildenbrand <david@redhat.com>,
Marcel Apfelbaum <marcel.apfelbaum@gmail.com>,
Eduardo Habkost <eduardo@habkost.net>,
Philippe Mathieu-Daude <philmd@linaro.org>,
Paolo Bonzini <pbonzini@redhat.com>,
"Daniel P. Berrange" <berrange@redhat.com>,
Markus Armbruster <armbru@redhat.com>
Subject: Re: [PATCH V3 02/16] migration: cpr-state
Date: Wed, 13 Nov 2024 15:36:07 -0500 [thread overview]
Message-ID: <ZzUNt38DfU_Pr2To@x1n> (raw)
In-Reply-To: <1730468875-249970-3-git-send-email-steven.sistare@oracle.com>
On Fri, Nov 01, 2024 at 06:47:41AM -0700, Steve Sistare wrote:
> CPR must save state that is needed after QEMU is restarted, when devices
> are realized. Thus the extra state cannot be saved in the migration stream,
> as objects must already exist before that stream can be loaded. Instead,
> define auxilliary state structures and vmstate descriptions, not associated
> with any registered object, and serialize the aux state to a cpr-specific
> stream in cpr_state_save. Deserialize in cpr_state_load after QEMU
> restarts, before devices are realized.
>
> Provide accessors for clients to register file descriptors for saving.
> The mechanism for passing the fd's to the new process will be specific
> to each migration mode, and added in subsequent patches.
>
> Signed-off-by: Steve Sistare <steven.sistare@oracle.com>
> Reviewed-by: Fabiano Rosas <farosas@suse.de>
Reviewed-by: Peter Xu <peterx@redhat.com>
--
Peter Xu
next prev parent reply other threads:[~2024-11-13 20:36 UTC|newest]
Thread overview: 86+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-11-01 13:47 [PATCH V3 00/16] Live update: cpr-transfer Steve Sistare
2024-11-01 13:47 ` [PATCH V3 01/16] machine: anon-alloc option Steve Sistare
2024-11-01 14:06 ` Peter Xu
2024-11-04 10:39 ` David Hildenbrand
2024-11-04 10:45 ` David Hildenbrand
2024-11-04 17:38 ` Steven Sistare
2024-11-04 19:51 ` David Hildenbrand
2024-11-04 20:14 ` Peter Xu
2024-11-04 20:17 ` David Hildenbrand
2024-11-04 20:41 ` Peter Xu
2024-11-04 20:15 ` David Hildenbrand
2024-11-04 20:56 ` Steven Sistare
2024-11-04 21:36 ` David Hildenbrand
2024-11-06 20:12 ` Steven Sistare
2024-11-06 20:41 ` Peter Xu
2024-11-06 20:59 ` Steven Sistare
2024-11-06 21:21 ` Peter Xu
2024-11-07 14:03 ` Steven Sistare
2024-11-07 13:05 ` David Hildenbrand
2024-11-07 14:04 ` Steven Sistare
2024-11-07 16:19 ` David Hildenbrand
2024-11-07 18:13 ` Steven Sistare
2024-11-07 16:32 ` Peter Xu
2024-11-07 16:38 ` David Hildenbrand
2024-11-07 17:48 ` Peter Xu
2024-11-07 13:23 ` David Hildenbrand
2024-11-07 16:02 ` Steven Sistare
2024-11-07 16:26 ` David Hildenbrand
2024-11-07 16:40 ` Steven Sistare
2024-11-08 11:31 ` David Hildenbrand
2024-11-08 13:43 ` Peter Xu
2024-11-08 14:14 ` Steven Sistare
2024-11-08 14:32 ` Peter Xu
2024-11-08 14:18 ` David Hildenbrand
2024-11-08 15:01 ` Peter Xu
2024-11-08 13:56 ` Steven Sistare
2024-11-08 14:20 ` David Hildenbrand
2024-11-08 14:37 ` Steven Sistare
2024-11-08 14:54 ` David Hildenbrand
2024-11-08 15:07 ` Peter Xu
2024-11-08 15:09 ` David Hildenbrand
2024-11-08 15:15 ` David Hildenbrand
2024-11-01 13:47 ` [PATCH V3 02/16] migration: cpr-state Steve Sistare
2024-11-13 20:36 ` Peter Xu [this message]
2024-11-01 13:47 ` [PATCH V3 03/16] physmem: preserve ram blocks for cpr Steve Sistare
2024-11-01 13:47 ` [PATCH V3 04/16] hostmem-memfd: preserve " Steve Sistare
2024-11-01 13:47 ` [PATCH V3 05/16] migration: SCM_RIGHTS for QEMUFile Steve Sistare
2024-11-13 20:54 ` Peter Xu
2024-11-14 18:34 ` Steven Sistare
2024-11-01 13:47 ` [PATCH V3 06/16] migration: VMSTATE_FD Steve Sistare
2024-11-13 20:55 ` Peter Xu
2024-11-01 13:47 ` [PATCH V3 07/16] migration: cpr-transfer save and load Steve Sistare
2024-11-01 13:47 ` [PATCH V3 08/16] migration: cpr-uri parameter Steve Sistare
2024-11-01 13:47 ` [PATCH V3 09/16] migration: cpr-uri option Steve Sistare
2024-11-01 13:47 ` [PATCH V3 10/16] migration: split qmp_migrate Steve Sistare
2024-11-13 21:11 ` Peter Xu
2024-11-14 18:33 ` Steven Sistare
2024-11-01 13:47 ` [PATCH V3 11/16] migration: cpr-transfer mode Steve Sistare
2024-11-13 21:58 ` Peter Xu
2024-11-14 18:36 ` Steven Sistare
2024-11-14 19:04 ` Peter Xu
2024-11-19 19:50 ` Steven Sistare
2024-11-19 20:16 ` Peter Xu
2024-11-19 20:32 ` Steven Sistare
2024-11-19 20:51 ` Peter Xu
2024-11-19 21:03 ` Steven Sistare
2024-11-19 21:29 ` Peter Xu
2024-11-19 21:41 ` Steven Sistare
2024-11-19 21:48 ` Peter Xu
2024-11-19 21:51 ` Steven Sistare
2024-11-20 9:38 ` Daniel P. Berrangé
2024-11-20 16:12 ` Steven Sistare
2024-11-20 16:26 ` Daniel P. Berrangé
2024-11-01 13:47 ` [PATCH V3 12/16] tests/migration-test: memory_backend Steve Sistare
2024-11-13 22:19 ` Fabiano Rosas
2024-11-01 13:47 ` [PATCH V3 13/16] tests/qtest: defer connection Steve Sistare
2024-11-13 22:36 ` Fabiano Rosas
2024-11-14 18:45 ` Steven Sistare
2024-11-13 22:53 ` Peter Xu
2024-11-14 18:31 ` Steven Sistare
2024-11-01 13:47 ` [PATCH V3 14/16] tests/migration-test: " Steve Sistare
2024-11-14 12:46 ` Fabiano Rosas
2024-11-01 13:47 ` [PATCH V3 15/16] migration-test: cpr-transfer Steve Sistare
2024-11-01 13:47 ` [PATCH V3 16/16] migration: cpr-transfer documentation Steve Sistare
2024-11-13 22:02 ` Peter Xu
2024-11-14 18:31 ` Steven Sistare
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