linux-kernel - Re: ARM: static kernel in vmalloc space (was Re: [PATCH 0/3] Highmem support for 32-bit RISC-V)

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: <CAK8P3a0=+aBJLTvHOskTv=tba_s5b5MzWrYG8mxH3iLNy4hfBw@mail.gmail.com>
Date:   Mon, 11 May 2020 17:29:29 +0200
From:   Arnd Bergmann <arnd@...db.de>
To:     afzal mohammed <afzal.mohd.ma@...il.com>
Cc:     Russell King <linux@...linux.org.uk>,
        Linux ARM <linux-arm-kernel@...ts.infradead.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: ARM: static kernel in vmalloc space (was Re: [PATCH 0/3] Highmem
 support for 32-bit RISC-V)

On Mon, May 11, 2020 at 4:21 PM afzal mohammed <afzal.mohd.ma@...il.com> wrote:
>
> Hi,
>
> Kernel now boots to prompt w/ static kernel mapping moved to vmalloc
> space.
>
> Changes currently done have a couple of platform specific things, this
> has to be modified to make it multiplatform friendly (also to be taken
> care is ARM_PATCH_PHYS_VIRT case).

Nice!

> Module address space has to be taken care as well.

What do you currently do with the module address space? I suppose the
easiest way is to just always put modules into vmalloc space, as we already
do with CONFIG_ARM_MODULE_PLTS when the special area gets full,
but that could be optimized once the rest works.

        Arnd