On 12/17/2012 02:47 PM, Yinghai Lu wrote:
Peter, can you check that branch again? I moved the early_trap_init after init_mem_mapping. so for 64bit native, init_mem_mapping will setup page table for ram from blank.
Looks better, at first glance at least. There are a couple of unnecessary changes (the counter in head_64.S cannot exceed 32 bits once computed, so the change from %rcx to %ecx change is pointless.)
There is another bug in my patch: it either needs to mask off the NX bit if we are running on non-NX-enabled hardware, or it needs to not set the NX bit (which is mostly okay that early on, I suspect.)
-hpa -- H. Peter Anvin, Intel Open Source Technology Center I work for Intel. I don't speak on their behalf. -- To unsubscribe from this list: send the line "unsubscribe linux-tip-commits" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
|