linux-kernel - Re: [PATCH v2 2/2] xen/pvh: correctly setup the PV EFI interface for dom0

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] [thread-next>] [day] [month] [year] [list]

Date:   Wed, 24 Apr 2019 11:36:41 -0400
From:   Boris Ostrovsky <boris.ostrovsky@...cle.com>
To:     Roger Pau Monne <roger.pau@...rix.com>,
        linux-kernel@...r.kernel.org
Cc:     Juergen Gross <jgross@...e.com>,
        Stefano Stabellini <sstabellini@...nel.org>,
        Darren Hart <dvhart@...radead.org>,
        Andy Shevchenko <andy@...radead.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        Ingo Molnar <mingo@...hat.com>, Borislav Petkov <bp@...en8.de>,
        "H. Peter Anvin" <hpa@...or.com>, x86@...nel.org,
        xen-devel@...ts.xenproject.org, platform-driver-x86@...r.kernel.org
Subject: Re: [PATCH v2 2/2] xen/pvh: correctly setup the PV EFI interface for
 dom0

On 4/23/19 9:04 AM, Roger Pau Monne wrote:
> This involves initializing the boot params EFI related fields and the
> efi global variable.
>
> Without this fix a PVH dom0 doesn't detect when booted from EFI, and
> thus doesn't support accessing any of the EFI related data.
>
> Reported-by: PGNet Dev <pgnet.dev@...il.com>
> Signed-off-by: Roger Pau Monné <roger.pau@...rix.com>

Hmm.. This seems to be breaking save/restore for me (for domU), and I
can't see any obvious reasons.

Can you try it?

-boris