linux/arch/um/kernel/um_arch.h

/* SPDX-License-Identifier: GPL-2.0-only */

#ifndef __UML_ARCH_H__
#define __UML_ARCH_H__

extern void * __init uml_load_file(const char *filename, unsigned long long *size);

#ifdef CONFIG_OF
extern void __init uml_dtb_init(void);
#else
static inline void uml_dtb_init(void) { }
#endif

#endif
um: Extract load file helper from initrd.c The file loading support in initrd.c can be re-used for loading devicetrees. Move it out of initrd.c. Signed-off-by: Vincent Whitchurch <vincent.whitchurch@axis.com> Signed-off-by: Richard Weinberger <richard@nod.at> 2021-12-08 16:11:22 +01:00			`/* SPDX-License-Identifier: GPL-2.0-only */`

			`#ifndef __UML_ARCH_H__`
			`#define __UML_ARCH_H__`

			`extern void * __init uml_load_file(const char filename, unsigned long long size);`

um: Add devicetree support Add a dtb=<filename> option to boot UML with a devicetree blob. This can be used for testing driver code using UML. Signed-off-by: Vincent Whitchurch <vincent.whitchurch@axis.com> [rw: Add dependency on CONFIG_OF] Signed-off-by: Richard Weinberger <richard@nod.at> 2021-12-08 16:11:23 +01:00			`#ifdef CONFIG_OF`
			`extern void __init uml_dtb_init(void);`
			`#else`
			`static inline void uml_dtb_init(void) { }`
			`#endif`

um: Extract load file helper from initrd.c The file loading support in initrd.c can be re-used for loading devicetrees. Move it out of initrd.c. Signed-off-by: Vincent Whitchurch <vincent.whitchurch@axis.com> Signed-off-by: Richard Weinberger <richard@nod.at> 2021-12-08 16:11:22 +01:00			`#endif`