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Date:   Fri, 9 Jun 2023 13:03:52 +0300
From:   kirill.shutemov@linux.intel.com
To:     Kai Huang <kai.huang@intel.com>
Cc:     linux-kernel@vger.kernel.org, kvm@vger.kernel.org,
        linux-mm@kvack.org, dave.hansen@intel.com, tony.luck@intel.com,
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        reinette.chatre@intel.com, len.brown@intel.com, ak@linux.intel.com,
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        sathyanarayanan.kuppuswamy@linux.intel.com, bagasdotme@gmail.com,
        sagis@google.com, imammedo@redhat.com
Subject: Re: [PATCH v11 16/20] x86/virt/tdx: Initialize all TDMRs
Message-ID: <20230609100352.6gnn5foahnppibmm@box.shutemov.name>
References: <cover.1685887183.git.kai.huang@intel.com>
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On Mon, Jun 05, 2023 at 02:27:29AM +1200, Kai Huang wrote:
> After the global KeyID has been configured on all packages, initialize
> all TDMRs to make all TDX-usable memory regions that are passed to the
> TDX module become usable.
> 
> This is the last step of initializing the TDX module.
> 
> Initializing TDMRs can be time consuming on large memory systems as it
> involves initializing all metadata entries for all pages that can be
> used by TDX guests.  Initializing different TDMRs can be parallelized.
> For now to keep it simple, just initialize all TDMRs one by one.  It can
> be enhanced in the future.
> 
> Signed-off-by: Kai Huang <kai.huang@intel.com>
> Reviewed-by: Isaku Yamahata <isaku.yamahata@intel.com>

Reviewed-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>

-- 
  Kiryl Shutsemau / Kirill A. Shutemov