From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <sigmaepsilon92@gmail.com>
Received-SPF: Pass (sender SPF authorized) identity=mailfrom;
 client-ip=2607:f8b0:4003:c0f::229; helo=mail-ot0-x229.google.com;
 envelope-from=sigmaepsilon92@gmail.com; receiver=edk2-devel@lists.01.org 
Received: from mail-ot0-x229.google.com (mail-ot0-x229.google.com
 [IPv6:2607:f8b0:4003:c0f::229])
 (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits))
 (No client certificate requested)
 by ml01.01.org (Postfix) with ESMTPS id 245E020352AA2
 for <edk2-devel@lists.01.org>; Sun, 10 Dec 2017 14:13:47 -0800 (PST)
Received: by mail-ot0-x229.google.com with SMTP id h9so13288424oti.0
 for <edk2-devel@lists.01.org>; Sun, 10 Dec 2017 14:18:24 -0800 (PST)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025;
 h=mime-version:in-reply-to:references:from:date:message-id:subject:to
 :cc; bh=rYEI2sfklG0PeUULrYR0D7AsyXoTONr8xLeCA98MFwU=;
 b=cj8sPU7z8qwZyUB9rSZVPIawiUAR90fdt8Un4lfjdMzV+VFi6wlxiS2git9Yqel56c
 2DYBDjvj9BAjuyO+OZRNJ5A3mjafNZIX3Cck3SigoZMQzIGcvpz7QwGmlZGEYr1BScP4
 LERetodvI15an/lFTMOfXuxHjtAn/f9aymur7WRPvx+nrV2vpIZwKZrFQzcuTrmAgf7Q
 PuClwHfx46k95br9lABE6I5S7UiwtuWrccRSr+8RhPz2OdRkg0YZKKx3sH64NzTrU87Y
 eSQuw0W5ncQWdLfKojVOMhIemr6OsuiD/ObHbWRnOPvy1pNuKsLlkTitITAPV3OnQpvY
 nKZA==
X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed;
 d=1e100.net; s=20161025;
 h=x-gm-message-state:mime-version:in-reply-to:references:from:date
 :message-id:subject:to:cc;
 bh=rYEI2sfklG0PeUULrYR0D7AsyXoTONr8xLeCA98MFwU=;
 b=qu4SVPxVzLWPKQx5r/O9A9QI0o2NfDvkip4QlKoQI9+MJHYHEpmgoyxuZIh+4U0qna
 TJ5/ZdWia/0KV4eMzkyi6JGuNAjLNmOwKiDiW48gEO1FzzAzaH5cQMHqEXxyQJUYjGQk
 Zg3rPHmgknZ6s90drprkN8X7OP2tdxEiIeih0hmyPHTouvTdy8Ja0YF5KOWxSHzstHCg
 5B+H+81D0VRQKC9Wxsu+gT+zXubhCsmybWyl9z9Ppo9RTcOool3BkUeBX0JYT+pDXeKS
 3mm61tRW3o6sKAOcbkF37KyEgRUImbAAWrGN5JIFvZEuXgvRifRhwGocOezIobncGOhz
 y2kg==
X-Gm-Message-State: AJaThX5TWQTiUrF3w0569jqVj+Ngn1tyx+oHxzXGfdojSEtvRK+WMIQD
 uVtBavs3JIrjwAIM3zTG3tqq98tcBwGcb+QMXm0=
X-Google-Smtp-Source: AGs4zMaBHH2I+XAiAV19slJI9bnuoJKEyYvDMJG7Gd/PJVWV4lTUm4Bs1xrJ5tv52PqwlwhUHhhJVaQi/PD++I2lUsI=
X-Received: by 10.157.47.247 with SMTP id b52mr35888306otd.311.1512944304299; 
 Sun, 10 Dec 2017 14:18:24 -0800 (PST)
MIME-Version: 1.0
Received: by 10.157.1.204 with HTTP; Sun, 10 Dec 2017 14:18:23 -0800 (PST)
Received: by 10.157.1.204 with HTTP; Sun, 10 Dec 2017 14:18:23 -0800 (PST)
In-Reply-To: <CAN9vWDJWshkMbfkBSc2pgyqWqWfc8QsfQT7pUM=Zx6VLx_5qZg@mail.gmail.com>
References: <CAN9vWD+O5=06gCVhxuZ=S2kxVBjkw3nrJMdo-zUKfNx0TzWPeg@mail.gmail.com>
 <CAKv+Gu9TcfRbwZK61JHwDWc5z-fo4dQhD_Aq6+pFFkdHRWDOJA@mail.gmail.com>
 <CAKv+Gu-U6kxiw46kr4O=iTusNg_BK6Vg6_snzqjCrNWU-OTVhA@mail.gmail.com>
 <CAN9vWDKZeNTdYqYFVL3YwvQfpRs1E7NDcN3QH4HDpuLCbNcLdA@mail.gmail.com>
 <CAKv+Gu9LD9N2GtCah4ogy2qbrQ-a=wz0+LE8endRy5AtWcL28g@mail.gmail.com>
 <CAN9vWDJepuOSsdsfGsuqsvNepQDiwn6=FPxFtSL=n1g3d6OkMg@mail.gmail.com>
 <CAKv+Gu-uYkWW_uPuQ5YRej3_VhdAQt-QOR91igLw_S=DxDc1bw@mail.gmail.com>
 <CAN9vWDK5MmyvinRXx5XQoNTnGi90rgDCFDqdGBk1t-QZ=NqNQg@mail.gmail.com>
 <CAN9vWDLKTRjZ88uyiD0x8__Fm9y1Zx1W1z+Si9T9-REQFSeZXQ@mail.gmail.com>
 <CAN9vWDKKKaCGL9nRnqVWR8T60ABpCP7tH723EjXaHfc2bWsa1A@mail.gmail.com>
 <CAN9vWDJWshkMbfkBSc2pgyqWqWfc8QsfQT7pUM=Zx6VLx_5qZg@mail.gmail.com>
From: Michael Zimmermann <sigmaepsilon92@gmail.com>
Date: Sun, 10 Dec 2017 23:18:23 +0100
Message-ID: <CAN9vWD+yfqZxRcsMqSiKMrHXf8BAvYLYcUhbU9S+akBnF_rCOg@mail.gmail.com>
To: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Cc: "Gao, Liming" <liming.gao@intel.com>, Yonghong Zhu <yonghong.zhu@intel.com>,
 edk2-devel-01 <edk2-devel@lists.01.org>,
 Leif Lindholm <leif.lindholm@linaro.org>
X-Content-Filtered-By: Mailman/MimeDel 2.1.22
Subject: Re: PrePiLib's FwVol.c can't handle padding before volume header
X-BeenThere: edk2-devel@lists.01.org
X-Mailman-Version: 2.1.22
Precedence: list
List-Id: EDK II Development  <edk2-devel.lists.01.org>
List-Unsubscribe: <https://lists.01.org/mailman/options/edk2-devel>,
 <mailto:edk2-devel-request@lists.01.org?subject=unsubscribe>
List-Archive: <http://lists.01.org/pipermail/edk2-devel/>
List-Post: <mailto:edk2-devel@lists.01.org>
List-Help: <mailto:edk2-devel-request@lists.01.org?subject=help>
List-Subscribe: <https://lists.01.org/mailman/listinfo/edk2-devel>,
 <mailto:edk2-devel-request@lists.01.org?subject=subscribe>
X-List-Received-Date: Sun, 10 Dec 2017 22:13:48 -0000
Content-Type: text/plain; charset="UTF-8"

Exactly. If I shift the pointer by 4 bytes from within PrePiLib the device
boots just fine.

I'm not sure if the size is the root cause but right now it only happens
when adding a ~15mb binary efi to the end of fvmain.

On Dec 10, 2017 11:13 PM, "Ard Biesheuvel" <ard.biesheuvel@linaro.org>
wrote:

On 10 December 2017 at 21:58, Michael Zimmermann
<sigmaepsilon92@gmail.com> wrote:
> VolInfo doesn't seem to complain about FVMAIN_COMPACT.Fv:
> https://pastebin.com/ueUnepXF
>
> Does VolInfo support Fs's as well? because it fails on mine(even on a
> working one).
>

You mean to dissect the FFS that contains the FV? Not sure.

 So the _FVH signature is there but shifted by 4 bytes, right? Does
that only happen with large FVs?