linux-kernel - Re: [PATCHv3 02/32] x86/coco: Add API to handle encryption mask

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: <20220221231831.dukkbvjdc5e3mu7c@black.fi.intel.com>
Date:   Tue, 22 Feb 2022 02:18:31 +0300
From:   "Kirill A. Shutemov" <kirill.shutemov@...ux.intel.com>
To:     Borislav Petkov <bp@...en8.de>
Cc:     Dave Hansen <dave.hansen@...el.com>, tglx@...utronix.de,
        mingo@...hat.com, luto@...nel.org, peterz@...radead.org,
        sathyanarayanan.kuppuswamy@...ux.intel.com, aarcange@...hat.com,
        ak@...ux.intel.com, dan.j.williams@...el.com, david@...hat.com,
        hpa@...or.com, jgross@...e.com, jmattson@...gle.com,
        joro@...tes.org, jpoimboe@...hat.com, knsathya@...nel.org,
        pbonzini@...hat.com, sdeep@...are.com, seanjc@...gle.com,
        tony.luck@...el.com, vkuznets@...hat.com, wanpengli@...cent.com,
        x86@...nel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCHv3 02/32] x86/coco: Add API to handle encryption mask

On Mon, Feb 21, 2022 at 11:56:00PM +0100, Borislav Petkov wrote:
> On Tue, Feb 22, 2022 at 01:21:49AM +0300, Kirill A. Shutemov wrote:
> > Well, it actually going to be
> > 
> >  	cpa.mask_set = enc ? cc_mkenc(__pgprot(0)) : cc_mkdec(__pgprot(0));
> >  	cpa.mask_clr = enc ? cc_mkdec(__pgprot(0)) : cc_mkenc(__pgprot(0));
> > 
> > as '0' is not a valid pgprot_t.
> > 
> > Still wonna go this path?
> 
> Why "still"? What's wrong with that?

IMO, it makes these statement substantially uglier.

-- 
 Kirill A. Shutemov