linux-kernel - Re: [PATCH v12 12/22] x86/virt/tdx: Allocate and set up PAMTs for TDMRs

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: <3abfb722-a0c1-dcad-55f9-dfff7167c501@redhat.com>
Date:   Tue, 11 Jul 2023 13:55:48 +0200
From:   David Hildenbrand <david@...hat.com>
To:     "Huang, Kai" <kai.huang@...el.com>,
        "kvm@...r.kernel.org" <kvm@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Cc:     "Raj, Ashok" <ashok.raj@...el.com>,
        "Hansen, Dave" <dave.hansen@...el.com>,
        "Luck, Tony" <tony.luck@...el.com>,
        "bagasdotme@...il.com" <bagasdotme@...il.com>,
        "ak@...ux.intel.com" <ak@...ux.intel.com>,
        "Wysocki, Rafael J" <rafael.j.wysocki@...el.com>,
        "kirill.shutemov@...ux.intel.com" <kirill.shutemov@...ux.intel.com>,
        "Chatre, Reinette" <reinette.chatre@...el.com>,
        "Christopherson,, Sean" <seanjc@...gle.com>,
        "pbonzini@...hat.com" <pbonzini@...hat.com>,
        "linux-mm@...ck.org" <linux-mm@...ck.org>,
        "tglx@...utronix.de" <tglx@...utronix.de>,
        "Yamahata, Isaku" <isaku.yamahata@...el.com>,
        "mingo@...hat.com" <mingo@...hat.com>,
        "nik.borisov@...e.com" <nik.borisov@...e.com>,
        "hpa@...or.com" <hpa@...or.com>,
        "peterz@...radead.org" <peterz@...radead.org>,
        "Shahar, Sagi" <sagis@...gle.com>,
        "imammedo@...hat.com" <imammedo@...hat.com>,
        "bp@...en8.de" <bp@...en8.de>, "Gao, Chao" <chao.gao@...el.com>,
        "Brown, Len" <len.brown@...el.com>,
        "sathyanarayanan.kuppuswamy@...ux.intel.com" 
        <sathyanarayanan.kuppuswamy@...ux.intel.com>,
        "Huang, Ying" <ying.huang@...el.com>,
        "Williams, Dan J" <dan.j.williams@...el.com>,
        "x86@...nel.org" <x86@...nel.org>
Subject: Re: [PATCH v12 12/22] x86/virt/tdx: Allocate and set up PAMTs for
 TDMRs

On 11.07.23 13:49, Huang, Kai wrote:
> On Tue, 2023-07-11 at 13:42 +0200, David Hildenbrand wrote:
>>> -		ret = add_tdx_memblock(tmb_list, start_pfn, end_pfn);
>>> +		ret = add_tdx_memblock(tmb_list, start_pfn, end_pfn, nid);
>>>     		if (ret)
>>>     			goto err;
>>
>> Why did you decide to defer remembering the nid as well? I'd just move
>> that part to the patch that adds add_tdx_memblock().
> 
> Thanks for the review.
> 
> The @nid is used to try to allocate the PAMT from local node.  It only gets used
> in this patch.  Originally (in v7) I had it in patch 09 but Dave suggested to
> move to this patch (see the first comment in below link):
> 
> https://lore.kernel.org/lkml/8e6803f5-bec6-843d-f3c4-75006ffd0d2f@intel.com/

Okay, thanks.

-- 
Cheers,

David / dhildenb