linux-kernel - Re: [PATCH v1 0/2] firmware: dmi_scan: Make it work in kexec'ed kernel

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Message-ID: <YMd39tIPercgljll@smile.fi.intel.com>
Date:   Mon, 14 Jun 2021 18:38:30 +0300
From:   Andy Shevchenko <andy.shevchenko@...il.com>
To:     Dave Young <dyoung@...hat.com>
Cc:     Jean Delvare <jdelvare@...e.com>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Mika Westerberg <mika.westerberg@...ux.intel.com>,
        Javier Tiá <javier.tia@...il.com>,
        kexec@...ts.infradead.org, Eric Biederman <ebiederm@...ssion.com>,
        linux-efi <linux-efi@...r.kernel.org>,
        Matt Fleming <matt@...eblueprint.co.uk>,
        Ard Biesheuvel <ardb@...nel.org>
Subject: Re: [PATCH v1 0/2] firmware: dmi_scan: Make it work in kexec'ed
 kernel

On Sat, Jun 12, 2021 at 12:40:57PM +0800, Dave Young wrote:
> > Probably it is doable to have kexec on 32bit efi working
> > without runtime service support, that means no need the trick of fixed
> > mapping.
> > 
> > If I can restore my vm to boot 32bit efi on this weekend then I may provide some draft
> > patches for test.
> 
> Unfortunately I failed to setup a 32bit efi guest,  here are some
> untested draft patches, please have a try.

Thanks for the patches.

As previously, I have reverted my hacks and applied your patches (also I
dropped patches from previous mail against kernel and kexec-tools) for both
kernel and user space on first and second environments.

It does NOT solve the issue.

If there is no idea pops up soon, I'm going to resend my series that
workarounds the issue.

-- 
With Best Regards,
Andy Shevchenko