The lmg overwrites r3 which we later use to reference the fprs and fpc. Let's do the lmg at the end where overwriting is fine. Signed-off-by: Janosch Frank <frankja@xxxxxxxxxxxxx> --- Finding this took me longer than I'd like to admit. :) --- s390x/cpu.S | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/s390x/cpu.S b/s390x/cpu.S index e2ad56c8..82b5e25d 100644 --- a/s390x/cpu.S +++ b/s390x/cpu.S @@ -81,11 +81,11 @@ sie64a: stg %r3,__SF_SIE_SAVEAREA(%r15) # save guest register save area # Load guest's gprs, fprs and fpc - lmg %r0,%r13,SIE_SAVEAREA_GUEST_GRS(%r3) .irp i, 0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15 ld \i, \i * 8 + SIE_SAVEAREA_GUEST_FPRS(%r3) .endr lfpc SIE_SAVEAREA_GUEST_FPC(%r3) + lmg %r0,%r13,SIE_SAVEAREA_GUEST_GRS(%r3) # Move scb ptr into r14 for the sie instruction lg %r14,__SF_SIE_CONTROL(%r15) -- 2.30.2
