linux-kernel - Re: [PATCH v11 09/20] x86/virt/tdx: Use all system memory when initializing TDX module as TDX memory

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Message-ID: <97b239b4-7d0d-e5e9-43f5-b9c26d6cd846@intel.com>
Date:   Wed, 7 Jun 2023 08:48:03 -0700
From:   Dave Hansen <dave.hansen@...el.com>
To:     Kai Huang <kai.huang@...el.com>, linux-kernel@...r.kernel.org,
        kvm@...r.kernel.org
Cc:     linux-mm@...ck.org, kirill.shutemov@...ux.intel.com,
        tony.luck@...el.com, peterz@...radead.org, tglx@...utronix.de,
        seanjc@...gle.com, pbonzini@...hat.com, david@...hat.com,
        dan.j.williams@...el.com, rafael.j.wysocki@...el.com,
        ying.huang@...el.com, reinette.chatre@...el.com,
        len.brown@...el.com, ak@...ux.intel.com, isaku.yamahata@...el.com,
        chao.gao@...el.com, sathyanarayanan.kuppuswamy@...ux.intel.com,
        bagasdotme@...il.com, sagis@...gle.com, imammedo@...hat.com
Subject: Re: [PATCH v11 09/20] x86/virt/tdx: Use all system memory when
 initializing TDX module as TDX memory

On 6/4/23 07:27, Kai Huang wrote:
> As a step of initializing the TDX module, the kernel needs to tell the
> TDX module which memory regions can be used by the TDX module as TDX
> guest memory.
...
> Signed-off-by: Kai Huang <kai.huang@...el.com>
> Reviewed-by: "Huang, Ying" <ying.huang@...el.com>
> Reviewed-by: Isaku Yamahata <isaku.yamahata@...el.com>

This is rather short on reviews from folks who do a lot of memory
hotplug work.  Partly because I don't see any of them cc'd.

Can you wrangle some mm reviews on this, please?

For the x86 side (and <sigh> because this patch probably took two years
to coalesce <double sigh>):

Reviewed-by: Dave Hansen <dave.hansen@...ux.intel.com>