diff options
Diffstat (limited to 'docs/devel/migration/CPR.rst')
| -rw-r--r-- | docs/devel/migration/CPR.rst | 5 |
1 files changed, 2 insertions, 3 deletions
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. |