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

[Baoquan He]

On 09/03/18 at 11:36pm, H. Peter Anvin wrote:
> 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."

I am willing to take any better way to improve. May need to make clear
why that was not taken. Not sure if Kirill still has the details.

Thanks
Baoquan