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charset="utf-8" Content-Transfer-Encoding: quoted-printable X-Scanned-By: MIMEDefang 3.0 on 10.30.177.12 Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=170.10.133.124; envelope-from=clg@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -18 X-Spam_score: -1.9 X-Spam_bar: - X-Spam_report: (-1.9 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.001, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H5=0.001, RCVD_IN_MSPIKE_WL=0.001, RCVD_IN_VALIDITY_CERTIFIED_BLOCKED=0.237, RCVD_IN_VALIDITY_RPBL_BLOCKED=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @redhat.com) X-ZM-MESSAGEID: 1751619211552116600 From: Steve Sistare Update documentation to say that cpr-transfer supports vfio and iommufd. Signed-off-by: Steve Sistare Reviewed-by: C=C3=A9dric Le Goater Reviewed-by: Fabiano Rosas Link: https://lore.kernel.org/qemu-devel/1751493538-202042-22-git-send-emai= l-steven.sistare@oracle.com Signed-off-by: C=C3=A9dric Le Goater --- docs/devel/migration/CPR.rst | 5 ++--- qapi/migration.json | 6 ++++-- 2 files changed, 6 insertions(+), 5 deletions(-) diff --git a/docs/devel/migration/CPR.rst b/docs/devel/migration/CPR.rst index 7897873c86e6cfdf9760a26a3c150d05d02b7518..0a0fd4f6dc31912b6f5ad52d8bc= e7b4d36da0e9f 100644 --- a/docs/devel/migration/CPR.rst +++ b/docs/devel/migration/CPR.rst @@ -152,8 +152,7 @@ cpr-transfer mode This mode allows the user to transfer a guest to a new QEMU instance on the same host with minimal guest pause time, by preserving guest RAM in place, albeit with new virtual addresses in new QEMU. Devices -and their pinned memory pages will also be preserved in a future QEMU -release. +and their pinned memory pages are also preserved for VFIO and IOMMUFD. =20 The user starts new QEMU on the same host as old QEMU, with command- line arguments to create the same machine, plus the ``-incoming`` @@ -322,6 +321,6 @@ Futures =20 cpr-transfer mode is based on a capability to transfer open file descriptors from old to new QEMU. In the future, descriptors for -vfio, iommufd, vhost, and char devices could be transferred, +vhost, and char devices could be transferred, preserving those devices and their kernel state without interruption, even if they do not explicitly support live migration. diff --git a/qapi/migration.json b/qapi/migration.json index 4963f6ca1275b60ee6dc86948f7f6f7d6c42aeee..e8a7d3b2a95cf932d2e697756f1= 50d28e23f0439 100644 --- a/qapi/migration.json +++ b/qapi/migration.json @@ -620,8 +620,10 @@ # # @cpr-transfer: This mode allows the user to transfer a guest to a # new QEMU instance on the same host with minimal guest pause -# time by preserving guest RAM in place. Devices and their pinned -# pages will also be preserved in a future QEMU release. +# time by preserving guest RAM in place. +# +# Devices and their pinned pages are also preserved for VFIO and +# IOMMUFD. (since 10.1) # # The user starts new QEMU on the same host as old QEMU, with # command-line arguments to create the same machine, plus the --=20 2.50.0