linux-kernel - Re: [RFC PATCH v2 06/11] riscv: pgtable: Add DMA

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 for Android: free password hash cracker in your pocket

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

Date:   Sun, 6 Jun 2021 23:08:35 +0800
From:   Guo Ren <guoren@...nel.org>
To:     Christoph Hellwig <hch@....de>
Cc:     Anup Patel <anup.patel@....com>,
        Palmer Dabbelt <palmerdabbelt@...gle.com>,
        Arnd Bergmann <arnd@...db.de>, wens@...e.org,
        maxime@...no.tech, Drew Fustini <drew@...gleboard.org>,
        liush@...winnertech.com,
        Wei Wu (吴伟) <lazyparser@...il.com>,
        wefu@...hat.com, linux-riscv <linux-riscv@...ts.infradead.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        linux-arch <linux-arch@...r.kernel.org>,
        linux-sunxi@...ts.linux.dev, Guo Ren <guoren@...ux.alibaba.com>
Subject: Re: [RFC PATCH v2 06/11] riscv: pgtable: Add DMA_COHERENT with custom
 PTE attributes

On Sun, Jun 6, 2021 at 10:39 PM Christoph Hellwig <hch@....de> wrote:
>
> NAK, no SOC must ever mess with pagetable attributes.

I don't think it messes with page table attributes. _PAGE_BASE
contains variable won't cause any problem.

-- 
Best Regards
 Guo Ren

ML: https://lore.kernel.org/linux-csky/