Re: [PATCH 1/3] x86/boot: Add bit fields into xloadflags for 5-level kernel checking

From: H. Peter Anvin
Date: Tue Sep 04 2018 - 02:38:46 EST


On 09/03/18 23:06, Baoquan He wrote:
>>
>> That makes no sense. I'm talking about *entering* the kernel; the second
>> kernel should switch to 5-level mode as necessary.
>
> OK, I didn't get your point. I forget what difficulty was met so that
> Kirill need to take this way. In that way, we will never have chance to
> put kernel above 64TB even from 5-level kernel to jump to 5-level
> kernel.
>

It sounds like you have no intent of doing that anyway? Now, that is
something one could use an xloadflag for, as I previously stated: "this kernel
supports being entered in 5-level mode."

-hpa