linux-stable/arch/s390/boot/boot.h

/* SPDX-License-Identifier: GPL-2.0 */
#ifndef BOOT_BOOT_H
#define BOOT_BOOT_H

void startup_kernel(void);

#endif /* BOOT_BOOT_H */
s390: remove decompressor's head.S Decompressor's head.S provided "data mover" sole purpose of which has been to safely move uncompressed kernel at 0x100000 and jump to it. With current bzImage layout entire decompressor's code guaranteed to be in a safe location under 0x100000, and hence could not be overwritten during kernel move. For that reason head.S could be replaced with simple memmove function. To do so introduce early boot code phase which is executed from arch/s390/boot/head.S after "verify_facilities" and takes care of optional kernel image decompression and transition to it. Reviewed-by: Martin Schwidefsky <schwidefsky@de.ibm.com> Signed-off-by: Vasily Gorbik <gor@linux.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com> 2018-07-19 11:11:28 +00:00			`/* SPDX-License-Identifier: GPL-2.0 */`
			`#ifndef BOOT_BOOT_H`
			`#define BOOT_BOOT_H`

			`void startup_kernel(void);`

			`#endif /* BOOT_BOOT_H */`