Commit 7714e16f authored by Alexander Gordeev's avatar Alexander Gordeev Committed by Heiko Carstens
Browse files

s390/smp: sort out physical vs virtual CPU0 lowcore pointer 



SPX instruction called from set_prefix() expects physical
address of the lowcore to be installed, but instead the
virtual address is passed.

Note: this does not fix a bug currently, since virtual and
physical addresses are identical.

Reviewed-by: default avatarHeiko Carstens <hca@linux.ibm.com>
Signed-off-by: default avatarAlexander Gordeev <agordeev@linux.ibm.com>
Signed-off-by: default avatarHeiko Carstens <hca@linux.ibm.com>
parent 28d3417a

arch/s390/kernel/setup.c

+1 −1
Original line number Diff line number Diff line
@@ -494,7 +494,7 @@ static void __init setup_lowcore_dat_off(void) 
	lc->return_mcck_lpswe = gen_lpswe(__LC_RETURN_MCCK_PSW);

	lc->preempt_count = PREEMPT_DISABLED;



	set_prefix((u32)(unsigned long) lc);

	set_prefix(__pa(lc));

	lowcore_ptr[0] = lc;

}