linux-kernel - Re: efi boot failures due to PTI with 32 bit builds and Intel CPUs

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Message-ID: <915dca84-c98a-fc63-3210-b21dd926b3d4@roeck-us.net>
Date:   Thu, 30 Aug 2018 05:20:22 -0700
From:   Guenter Roeck <linux@...ck-us.net>
To:     Joerg Roedel <jroedel@...e.de>
Cc:     linux-kernel@...r.kernel.org, Thomas Gleixner <tglx@...utronix.de>,
        Michal Hocko <mhocko@...e.com>,
        Andi Kleen <ak@...ux.intel.com>,
        Linus Torvalds <torvalds@...ux-foundation.org>, x86@...nel.org,
        Dave Hansen <dave.hansen@...el.com>,
        Pavel Machek <pavel@....cz>
Subject: Re: efi boot failures due to PTI with 32 bit builds and Intel CPUs

On 08/30/2018 04:30 AM, Joerg Roedel wrote:
> On Thu, Aug 30, 2018 at 03:11:26AM -0700, Guenter Roeck wrote:
>> OVMF image:
>>
>> https://github.com/groeck/linux-build-test/blob/master/rootfs/firmware/OVMF-pure-efi-32.fd
> 
> Thanks, with this image I can reproduce the issue. Investigating now...
> 

Excellent.

In case it matters: I can use the same 32-bit efi image to boot a 64-bit kernel
without problems.

Guenter