Lines Matching full:kho

9 #define pr_fmt(fmt) "KHO: " fmt
25  * KHO is tightly coupled with mm init and needs access to some of mm
31 #define KHO_FDT_COMPATIBLE "kho-v1"
47 early_param("kho", kho_parse_enable);
50  * Keep track of memory that is to be preserved across KHO.
233  * but the KHO successor kernel only needs to process them once in order.
376  * With KHO enabled, memory can become fragmented because KHO regions may
378  * safe zones that we will never see KHO allocations from. This is where we
499  * With KHO we can preserve arbitrary pages in the system. To ensure we still
503  * problem for us during KHO because we can just move them somewhere else.
603  * kho_add_subtree - record the physical address of a sub FDT in KHO root tree.
604  * @ser: serialization control object passed by KHO notifiers.
608  * Creates a new child node named @name in KHO root FDT and records
610  * by KHO for the new kernel to retrieve it after kexec.
613  * ``/sys/kernel/debug/kho/out/sub_fdts/@name``.
639 	struct mutex lock; /* protects KHO FDT finalization */
673  * Instructs KHO to preserve the whole folio across kexec. The order
696  * Instructs KHO to preserve the memory range from @phys to @phys + @size
736 /* Handling for debug/kho/out */
787 		pr_err("Failed to abort KHO finalization: %d\n", err);  in kho_abort()
805 	 * KHO callers.  in kho_finalize()
834 		pr_err("Failed to convert KHO state tree: %d\n", err);  in kho_finalize()
990 /* Handling for debugfs/kho/in */
1054 	debugfs_root = debugfs_create_dir("kho", NULL);  in kho_init()
1067 		 * Failure to create /sys/kernel/debug/kho/in does not prevent  in kho_init()
1068 		 * reviving state from KHO and setting up KHO for the next  in kho_init()
1140 			pr_warn("failed to restore folio for KHO fdt\n");  in kho_memory_init()
1225 		pr_warn("disabling KHO revival: %d\n", err);  in kho_populate()
1239 	image->kho.fdt = page_to_phys(kho_out.ser.fdt);  in kho_fill_kimage()
1255 	image->kho.scratch = &image->segment[image->nr_segments - 1];  in kho_fill_kimage()
1272 		/* Try to fit the kimage into our KHO scratch region */  in kho_walk_scratch()