This extends the MSR[RI]=0 window a little further into the system call in order to pair RI and EE enabling with a single mtmsrd.
XXX: May need to make this radix-only opt. - might take SLB or HPT faults on the context tracking, etc. Signed-off-by: Nicholas Piggin <npig...@gmail.com> --- arch/powerpc/kernel/exceptions-64s.S | 2 -- 1 file changed, 2 deletions(-) diff --git a/arch/powerpc/kernel/exceptions-64s.S b/arch/powerpc/kernel/exceptions-64s.S index ea7bb7cc0db1..ad9f51e49806 100644 --- a/arch/powerpc/kernel/exceptions-64s.S +++ b/arch/powerpc/kernel/exceptions-64s.S @@ -1905,8 +1905,6 @@ END_FTR_SECTION_IFSET(CPU_FTR_REAL_LE) mtctr r10 bctr .else - li r10,MSR_RI - mtmsrd r10,1 /* Set RI (EE=0) */ #ifdef CONFIG_RELOCATABLE __LOAD_HANDLER(r10, system_call_common) mtctr r10 -- 2.23.0