From 7437caad2052d920452ff7b9b7bc84f5e8e55c90 Mon Sep 17 00:00:00 2001 From: Steve Sistare Date: Wed, 2 Jul 2025 14:58:58 -0700 Subject: vfio: doc changes for cpr MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Update documentation to say that cpr-transfer supports vfio and iommufd. Signed-off-by: Steve Sistare Reviewed-by: Cédric Le Goater Reviewed-by: Fabiano Rosas Link: https://lore.kernel.org/qemu-devel/1751493538-202042-22-git-send-email-steven.sistare@oracle.com Signed-off-by: Cédric Le Goater --- docs/devel/migration/CPR.rst | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) (limited to 'docs') diff --git a/docs/devel/migration/CPR.rst b/docs/devel/migration/CPR.rst index 7897873..0a0fd4f 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. 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 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. -- cgit v1.1