On 10/09/2015 03:36 AM, Xishi Qiu wrote: > I mean the mirrored region can not at the middle or end of the zone, > BIOS should report the memory like this, > > e.g. > BIOS > node0: 0-4G mirrored, 4-8G mirrored, 8-16G non-mirrored > node1: 16-24G mirrored, 24-32G non-mirrored > > OS > node0: DMA DMA32 are both mirrored, NORMAL(4-8G), MOVABLE(8-16G) > node1: NORMAL(16-24G), MOVABLE(24-32G)
I understand if the mirrored regions are always at the start of the zone today, but is that somehow guaranteed going forward on all future hardware? I think it's important to at least consider what we would do if DMA32 turned out to be non-reliable. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
