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Kexec HandOver "KHO" Looks Like It Might Be Ready For The Linux 6.16 Kernel
Being worked on for a while now by engineers from Amazon, Microsoft, and Google has been Kexec HandOver 'KHO' as a means of allowing some kernel state to be retained when Kexec'ing into a new kernel such as for maintenance/security updates
The KHO patches in recent days were queued up into Andrew Morton's "MM" staging area leading to hope that this work is ready for mainlining with the Linux 6.16 kernel cycle this summer. With this patch set applied, memory that was reserved using "reserve_mem" command line options remains intact after kexec and it is guaranteed to reside at the same physical address." With the KHO patches now part of Andrew Morton's MM code, we'll see if it's submitted for the upcoming Linux 6.16 merge window in late May or early June if no last minute issues arise.
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