linux-kernel - Re: [PATCH v2] x86/efi: unconditionally hold the whole low-1MB memory regions

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Message-ID: <YLTTR5bpOv3XNu32@kernel.org>
Date:   Mon, 31 May 2021 15:15:03 +0300
From:   Mike Rapoport <rppt@...nel.org>
To:     Borislav Petkov <bp@...en8.de>
Cc:     Lianbo Jiang <lijiang@...hat.com>, linux-kernel@...r.kernel.org,
        x86@...nel.org, linux-efi@...r.kernel.org,
        platform-driver-x86@...r.kernel.org, kexec@...ts.infradead.org,
        ardb@...nel.org, dvhart@...radead.org, andy@...radead.org,
        tglx@...utronix.de, mingo@...hat.com, hpa@...or.com,
        luto@...capital.net, bhe@...hat.com, dyoung@...hat.com
Subject: Re: [PATCH v2] x86/efi: unconditionally hold the whole low-1MB
 memory regions

On Mon, May 31, 2021 at 12:52:06PM +0200, Borislav Petkov wrote:
> On Mon, May 31, 2021 at 12:58:40PM +0300, Mike Rapoport wrote:
> > Right, but TBH, I didn't update efi_free_boot_services() in my initial
> > version. I've added similar change there now and I'm waiting now to see if
> > kbuild is happy with this:
> > 
> > https://git.kernel.org/pub/scm/linux/kernel/git/rppt/linux.git/log/?h=x86/reservelow
> 
> Right, also I'm guessing that first patch should be
> 
> Cc: <stable@...r.kernel.org>
> 
> as there was one report with failing boot, right?

Hmm, why?
The regression is from v5.13-rc1, isn't it?

-- 
Sincerely yours,
Mike.