Re: [tip:x86/microcode] x86/microcode_intel_early.c: Early updateucode on Intel's CPU

[Yinghai Lu]

On Sat, Dec 15, 2012 at 1:40 PM, H. Peter Anvin <hpa@xxxxxxxxx> wrote:
> On 12/15/2012 12:55 PM, Yinghai Lu wrote:
>> Also if we set map too large, could have chance to cover mem hole near
>> 1T for AMD HT system.
>
>
> Again, should not be cachable in the MTRRs, and even so, is 1G aligned
> already.

AMD system could have all mem between TOLM and TOHM all WB, and don
need to set them in MTRRs entries.

and also your switchover change that handle cross 1G, and 512g, and it
is not 1G aligned.
for example, if kernel at 4095G+512M, it will map from 4095G+512M to
4096G + 512M.
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/