Commit 093ddccb authored Apr 01, 2019 by Vasily Gorbik Committed by Martin Schwidefsky Apr 10, 2019

s390/protvirt: block kernel command line alteration



Disallow kernel command line alteration via ipl parameter block if
running in protected virtualization environment.

Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>

parent db9492ce

arch/s390/boot/ipl_parm.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -144,7 +144,7 @@ void setup_boot_command_line(void)
		strcpy(early_command_line, strim(COMMAND_LINE));

		/* append IPL PARM data to the boot command line */
		if (ipl_block_valid)
		if (!is_prot_virt_guest() && ipl_block_valid)
		append_ipl_block_parm();
		}