commit: 8c2a381734fc9718f127f4aba958e8a7958d4028 From: Michael Neuling <mikey@xxxxxxxxxxx> Date: Wed, 24 Apr 2013 21:00:37 +0000 Subject: powerpc/power8: Fix secondary CPUs hanging on boot for HV=0 In __restore_cpu_power8 we determine if we are HV and if not, we return before setting HV only resources. Unfortunately we forgot to restore the link register from r11 before returning. This will happen on boot and with secondary CPUs not coming online. This adds the missing link register restore. Signed-off-by: Michael Neuling <mikey@xxxxxxxxxxx> CC: <stable@xxxxxxxxxxxxxxx> Signed-off-by: Benjamin Herrenschmidt <benh@xxxxxxxxxxxxxxxxxxx> --- arch/powerpc/kernel/cpu_setup_power.S | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/powerpc/kernel/cpu_setup_power.S b/arch/powerpc/kernel/cpu_setup_power.S index 2e6ad11..4daa5b7 100644 --- a/arch/powerpc/kernel/cpu_setup_power.S +++ b/arch/powerpc/kernel/cpu_setup_power.S @@ -67,6 +67,7 @@ _GLOBAL(__restore_cpu_power8) bl __init_FSCR mfmsr r3 rldicl. r0,r3,4,63 + mtlr r11 beqlr li r0,0 mtspr SPRN_LPID,r0 -- 1.7.10.4 -- To unsubscribe from this list: send the line "unsubscribe stable" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html