linux-kernel - Re: [PATCH v11 14/20] x86/virt/tdx: Configure TDX module with the TDMRs and global KeyID

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <20230608235341.7zr2dazup7p7mjd7@box.shutemov.name>
Date:   Fri, 9 Jun 2023 02:53:41 +0300
From:   kirill.shutemov@...ux.intel.com
To:     Kai Huang <kai.huang@...el.com>
Cc:     linux-kernel@...r.kernel.org, kvm@...r.kernel.org,
        linux-mm@...ck.org, dave.hansen@...el.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 14/20] x86/virt/tdx: Configure TDX module with the
 TDMRs and global KeyID

On Mon, Jun 05, 2023 at 02:27:27AM +1200, Kai Huang wrote:
> The TDX module uses a private KeyID as the "global KeyID" for mapping
> things like the PAMT and other TDX metadata.  This KeyID has already
> been reserved when detecting TDX during the kernel early boot.
> 
> After the list of "TD Memory Regions" (TDMRs) has been constructed to
> cover all TDX-usable memory regions, the next step is to pass them to
> the TDX module together with the global KeyID.
> 
> Signed-off-by: Kai Huang <kai.huang@...el.com>
> Reviewed-by: Isaku Yamahata <isaku.yamahata@...el.com>

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

-- 
  Kiryl Shutsemau / Kirill A. Shutemov