linux-kernel - Re: [PATCH v2 0/2] Make it possible to reserve memory on 64bit platform

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] [day] [month] [year] [list]

Message-ID: <20210118104234.GB4077@smile.fi.intel.com>
Date:   Mon, 18 Jan 2021 12:42:34 +0200
From:   Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
To:     Wesley Zhao <zhaowei1102@...ndersoft.com>
Cc:     akpm@...ux-foundation.org, keescook@...omium.org,
        tglx@...utronix.de, kerneldev@...smulder.nl, nivedita@...m.mit.edu,
        joe@...ches.com, gpiccoli@...onical.com, aquini@...hat.com,
        gustavoars@...nel.org, ojeda@...nel.org, ndesaulniers@...ogle.com,
        linux-kernel@...r.kernel.org, david@...hat.com,
        dan.j.williams@...el.com, guohanjun@...wei.com,
        mchehab+huawei@...nel.org
Subject: Re: [PATCH v2 0/2] Make it possible to reserve memory on 64bit
 platform

On Sat, Jan 16, 2021 at 02:41:11AM -0800, Wesley Zhao wrote:
> I was trying to reserve some memory to save logs incase that Android panic or hang and then
> I can read the logs from QNX side from the memory reserved before on the Qualcomm 8155 hypervisor platform,
> and I find the "reserve=" parameter only support 32bit,so I made some change and send these patches.

Your series has disrupter in-reply-to change, can you fix your tools to have
all patches in one email thread?

> testcase:
> 	I test on the qemu with some cmdline like[qemu-system-x86_64 -kernel linux-next/arch/x86_64/boot/bzImage
> 	-hda ubuntu-system.ext4 -append "root=/dev/sda init=/bin/bash console=ttyS0 reserve=0x180000000,0x123456"
> 	-nographic]	and check the /proc/iomem with 180000000-180123455 : reserved.
> 	And some other tests with the get_option with the parameter(-12345678) and so on

It's good but I was talking about unit test. Look into cmdline_kunit.c.

> Wesley Zhao (2):
>   lib/cmdline: add new function get_option_ull()
>   resource: Make it possible to reserve memory on 64bit platform

-- 
With Best Regards,
Andy Shevchenko