linux-kernel - Re: [PATCH v4 2/2] x86/boot/KASLR: skip the specified crashkernel region

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Message-ID: <CAFgQCTs90E-m1kZNNQOZZOeMTAVmRBsMJ_eMoyPJjYkh9tf4uA@mail.gmail.com>
Date:   Mon, 6 May 2019 18:08:05 +0800
From:   Pingfan Liu <kernelfans@...il.com>
To:     Borislav Petkov <bp@...en8.de>
Cc:     x86@...nel.org, Thomas Gleixner <tglx@...utronix.de>,
        Ingo Molnar <mingo@...hat.com>,
        "H. Peter Anvin" <hpa@...or.com>, Baoquan He <bhe@...hat.com>,
        Will Deacon <will.deacon@....com>,
        Nicolas Pitre <nico@...aro.org>,
        Vivek Goyal <vgoyal@...hat.com>,
        Chao Fan <fanc.fnst@...fujitsu.com>,
        "Kirill A. Shutemov" <kirill.shutemov@...ux.intel.com>,
        Ard Biesheuvel <ard.biesheuvel@...aro.org>,
        Hari Bathini <hbathini@...ux.vnet.ibm.com>,
        LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v4 2/2] x86/boot/KASLR: skip the specified crashkernel region

On Thu, Apr 18, 2019 at 8:32 PM Borislav Petkov <bp@...en8.de> wrote:
>
> On Thu, Apr 18, 2019 at 03:56:09PM +0800, Pingfan Liu wrote:
> > Then in my case, either no @offset or invalid argument will keep
> > "*crash_base = 0", and KASLR does not care about either of them.
>
> Ok.
>
> > It is not elegant. Will try a separate patch to fix it firstly.
>
> That's appreciated, thanks. It is about time that whole kexec/kaslr/...
> code gets some much needed cleaning up and streamlining.
>
I had tried it v1 on https://patchwork.kernel.org/patch/10909627/ and
v2 on https://patchwork.kernel.org/patch/10914169/. It seems no more
feed back and hard to push forward.

Since "x86/boot/KASLR: skip the specified crashkernel region" has no
dependency on the above patch, I would like to send the next version
for it.

Regards,
Pingfan