Re: [PATCH] x86: tell the world boot_params is 16-byte aligned

From: H. Peter Anvin
Date: Fri May 08 2015 - 14:37:12 EST

On 05/08/2015 10:40 AM, Borislav Petkov wrote:
> On Fri, May 08, 2015 at 09:26:49AM -0700, H. Peter Anvin wrote:
>> NAK. This could break in the case of careless bootloaders...
> Please elaborate. You mean, they'll go with the max alignment too and
> search boot_params there?

A careless bootloader may not align this data structure to any
particular alignment.

Of course, for x86 it doesn't matter too much, as it just hurts performance.


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