On Wed, Oct 15, 2025 at 07:50:59AM -0400, Pasha Tatashin wrote:
On Wed, Oct 15, 2025 at 4:09 AM Mike Rapoport rppt@kernel.org wrote:
On Tue, Oct 07, 2025 at 03:30:59AM +0000, Pasha Tatashin wrote:
Move KHO to kernel/liveupdate/ in preparation of placing all Live Update core kernel related files to the same place.
Signed-off-by: Pasha Tatashin pasha.tatashin@soleen.com Reviewed-by: Jason Gunthorpe jgg@nvidia.com
Reviewed-by: Mike Rapoport (Microsoft) rppt@kernel.org
Thank you.
One comment below.
Documentation/core-api/kho/concepts.rst | 2 +- MAINTAINERS | 2 +- init/Kconfig | 2 ++ kernel/Kconfig.kexec | 25 ---------------- kernel/Makefile | 3 +- kernel/liveupdate/Kconfig | 30 +++++++++++++++++++ kernel/liveupdate/Makefile | 4 +++ kernel/{ => liveupdate}/kexec_handover.c | 6 ++-- .../{ => liveupdate}/kexec_handover_debug.c | 0 .../kexec_handover_internal.h | 0 10 files changed, 42 insertions(+), 32 deletions(-) create mode 100644 kernel/liveupdate/Kconfig create mode 100644 kernel/liveupdate/Makefile rename kernel/{ => liveupdate}/kexec_handover.c (99%) rename kernel/{ => liveupdate}/kexec_handover_debug.c (100%) rename kernel/{ => liveupdate}/kexec_handover_internal.h (100%)
diff --git a/kernel/liveupdate/Kconfig b/kernel/liveupdate/Kconfig new file mode 100644 index 000000000000..522b9f74d605 --- /dev/null +++ b/kernel/liveupdate/Kconfig @@ -0,0 +1,30 @@ +# SPDX-License-Identifier: GPL-2.0-only
+menu "Live Update"
KHO can be used without Live Update, let's make this "Kexec HandOver and Live Update"
IMO the current menu name is OK, as it is an option presented only to users configuring the kernel, my rational for that thinking is that KHO is an independent module, but it should be enabled as a dependency by other kernel features that require it.
I think that we should allow enabling KHO on its own. For example, preserving tracing data in reserve_mem usecase does not have a strict dependency on KHO and it surely does not drive it.