On Mon, Feb 17, 2025 at 11:19:45AM +0800, RuiRui Yang wrote: > On Thu, 6 Feb 2025 at 21:34, Mike Rapoport <rppt@xxxxxxxxxx> wrote: > > == Limitations == > > > > Currently KHO is only implemented for file based kexec. The kernel > > interfaces in the patch set are already in place to support user space > > kexec as well, but it is still not implemented it yet inside kexec tools. > > > > What architecture exactly does this KHO work fine? Device Tree > should be ok on arm*, x86 and power*, but how about s390? KHO does not use device tree as the boot protocol, it uses FDT as a data structure and adds architecture specific bits to the boot structures to point to that data, very similar to how IMA_KEXEC works. Currently KHO is implemented on arm64 and x86, but there is no fundamental reason why it wouldn't work on any architecture that supports kexec. > Thanks > Dae > -- Sincerely yours, Mike.
