linux-kernel - Re: [PATCH v5 09/16] kexec: enable KHO support for memory preservation

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Message-ID: <20250328125345.GA10839@nvidia.com>
Date: Fri, 28 Mar 2025 09:53:45 -0300
From: Jason Gunthorpe <jgg@...dia.com>
To: Pratyush Yadav <ptyadav@...zon.de>
Cc: Changyuan Lyu <changyuanl@...gle.com>, linux-kernel@...r.kernel.org,
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Subject: Re: [PATCH v5 09/16] kexec: enable KHO support for memory
 preservation

On Thu, Mar 27, 2025 at 05:28:40PM +0000, Pratyush Yadav wrote:
> > Otherwise we are going to be spending months just polishing this one
> > patch without any actual data on where the performance issues and hot
> > spots actually are.
> 
> The memblock_reserve side we can optimize later, I agree. But the memory
> preservation format is ABI 

I think the agreement was that nothing is ABI at this point..

> and I think that is worth spending a little
> more time on. And I don't think it should be that much more complex than
> the current format.

Maybe!

Jason