From: Juergen Gross <jgross@suse.com>
To: Frediano Ziglio <freddy77@gmail.com>, xen-devel@lists.xenproject.org
Cc: "Frediano Ziglio" <frediano.ziglio@citrix.com>,
"Jan Beulich" <jbeulich@suse.com>,
"Andrew Cooper" <andrew.cooper3@citrix.com>,
"Roger Pau Monné" <roger.pau@citrix.com>,
"Teddy Astie" <teddy.astie@vates.tech>,
"Anthony PERARD" <anthony.perard@vates.tech>
Subject: Re: [PATCH Linux v6 16/16] xen/privcmd: Add new ABI to allow copying foreign memory
Date: Thu, 9 Jul 2026 12:53:25 +0200 [thread overview]
Message-ID: <c4d2eac0-9a44-468f-985d-4d3617c199e3@suse.com> (raw)
In-Reply-To: <20260619130501.272832-17-frediano.ziglio@citrix.com>
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On 19.06.26 15:05, Frediano Ziglio wrote:
> This new ABI allows to copy foreign domain memory to/from a buffer.
> This avoids having to map/copy/unmap foreign memory which is
> expensive.
> This operation is done particularly when migrating VMs.
>
> Signed-off-by: Frediano Ziglio <frediano.ziglio@citrix.com>
Reviewed-by: Juergen Gross <jgross@suse.com>
Juergen
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next prev parent reply other threads:[~2026-07-09 10:53 UTC|newest]
Thread overview: 61+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-06-19 13:04 [PATCH v6 00/16] xenguest optimisations Frediano Ziglio
2026-06-19 13:04 ` [PATCH v6 01/16] libs/guest: Reduce number of parts in write_split_record Frediano Ziglio
2026-06-30 16:35 ` Andrew Cooper
2026-07-08 9:07 ` Anthony PERARD
2026-06-19 13:04 ` [PATCH v6 02/16] libs/guest: Reduce number of I/O vectors in write_batch Frediano Ziglio
2026-06-30 16:40 ` Andrew Cooper
2026-07-02 12:31 ` Frediano Ziglio
2026-07-01 13:52 ` [PATCH v6 1.9/16] libs/guest: Allocate rec_pfns earlier in write_batch() Andrew Cooper
2026-07-08 9:08 ` Anthony PERARD
2026-07-01 13:57 ` [PATCH v6.1 02/16] libs/guest: Reduce number of iovecs " Andrew Cooper
2026-07-08 9:09 ` Anthony PERARD
2026-06-19 13:04 ` [PATCH v6 03/16] libs/guest: Reduce number of I/O vectors in write_batch Frediano Ziglio
2026-06-30 16:46 ` Andrew Cooper
2026-07-02 12:33 ` Frediano Ziglio
2026-07-08 9:34 ` Anthony PERARD
2026-06-19 13:04 ` [PATCH v6 04/16] libs/guest: Use a single write_exact in write_headers Frediano Ziglio
2026-06-30 16:47 ` Andrew Cooper
2026-07-08 9:35 ` Anthony PERARD
2026-06-19 13:04 ` [PATCH v6 05/16] libs/guest: allocate various migration arrays just once Frediano Ziglio
2026-07-01 11:34 ` Andrew Cooper
2026-06-19 13:04 ` [PATCH v6 06/16] libs/call: cache up to 4 pages in hypercall bounce buffers Frediano Ziglio
2026-07-07 13:51 ` Anthony PERARD
2026-07-07 14:05 ` Anthony PERARD
2026-07-07 14:47 ` Frediano Ziglio
2026-07-08 13:19 ` Anthony PERARD
2026-07-09 7:13 ` Frediano Ziglio
2026-06-19 13:04 ` [PATCH v6 07/16] libs/guest: avoids using 2 indexes Frediano Ziglio
2026-07-08 13:19 ` Anthony PERARD
2026-06-19 13:04 ` [PATCH v6 08/16] libs/guest: fill directly iov structure Frediano Ziglio
2026-07-01 11:47 ` Andrew Cooper
2026-06-19 13:04 ` [PATCH v6 09/16] libs/ctrl: Allows writev_exact to change iov array Frediano Ziglio
2026-06-30 17:08 ` Andrew Cooper
2026-06-19 13:04 ` [PATCH v6 10/16] libs/guest: add xg_foreignmemory_copy_{from,to} Frediano Ziglio
2026-07-08 13:32 ` Anthony PERARD
2026-07-09 10:07 ` Frediano Ziglio
2026-06-19 13:04 ` [PATCH v6 11/16] PoC: libs/guest: use foreign copy during migration Frediano Ziglio
2026-07-08 13:55 ` Anthony PERARD
2026-07-09 9:35 ` Frediano Ziglio
2026-06-19 13:04 ` [PATCH v6 12/16] xen: implement new foreign copy hypercall Frediano Ziglio
2026-06-22 10:34 ` Jan Beulich
2026-06-23 10:55 ` Frediano Ziglio
2026-06-23 13:21 ` Jan Beulich
2026-06-23 21:18 ` Frediano Ziglio
2026-06-24 6:44 ` Jan Beulich
2026-06-26 14:14 ` Frediano Ziglio
2026-06-29 6:59 ` Jan Beulich
2026-08-03 14:51 ` Frediano Ziglio
2026-06-22 10:44 ` Jan Beulich
2026-06-23 20:37 ` Daniel P. Smith
2026-06-19 13:04 ` [PATCH v6 13/16] privcmd: Add definition for new Linux privcmd to access new Xen hypercall Frediano Ziglio
2026-07-08 13:59 ` Anthony PERARD
2026-07-09 9:37 ` Frediano Ziglio
2026-06-19 13:04 ` [PATCH v6 14/16] libs/guest: use new hypercall if available Frediano Ziglio
2026-06-19 13:05 ` [PATCH v6 15/16] libs/guest: finalize PoC Frediano Ziglio
2026-07-08 14:12 ` Anthony PERARD
2026-07-09 9:39 ` Frediano Ziglio
2026-06-19 13:05 ` [PATCH Linux v6 16/16] xen/privcmd: Add new ABI to allow copying foreign memory Frediano Ziglio
2026-07-09 10:53 ` Juergen Gross [this message]
2026-08-03 14:05 ` Juergen Gross
2026-08-03 14:23 ` Frediano Ziglio
2026-08-03 14:52 ` Juergen Gross
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