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Commit 78333d1f authored by Vasily Gorbik's avatar Vasily Gorbik Committed by Martin Schwidefsky
Browse files

s390/kasan: add support for mem= kernel parameter 



Handle mem= kernel parameter in kasan to limit physical memory.

Reviewed-by: default avatarMartin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: default avatarVasily Gorbik <gor@linux.ibm.com>
Signed-off-by: default avatarMartin Schwidefsky <schwidefsky@de.ibm.com>
parent 12e55fa1

arch/s390/mm/kasan_init.c

+3 −0
Original line number Diff line number Diff line
@@ -268,6 +268,9 @@ void __init kasan_early_init(void) 
	memsize = get_mem_detect_end();

	if (!memsize)

		kasan_early_panic("cannot detect physical memory size\n");

	/* respect mem= cmdline parameter */

	if (memory_end_set && memsize > memory_end)

		memsize = memory_end;

	memsize = min(memsize, KASAN_SHADOW_START);



	if (IS_ENABLED(CONFIG_KASAN_S390_4_LEVEL_PAGING)) {