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From: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Date: Wed, 12 Sep 2018 16:56:55 +0200
Message-ID: <CAKv+Gu9o3Hoh6zrf8Xp_xND0KHEPZaxQg=5C9_uBh=AwjLBD8A@mail.gmail.com>
To: "Gao, Liming" <liming.gao@intel.com>
Cc: "edk2-devel@lists.01.org" <edk2-devel@lists.01.org>, "Ni,
 Ruiyu" <ruiyu.ni@intel.com>, 
 "Zimmer, Vincent" <vincent.zimmer@intel.com>, "Dong,
 Eric" <eric.dong@intel.com>, 
 Andrew Fish <afish@apple.com>, "agraf@suse.de" <agraf@suse.de>, 
 "Richardson, Brian" <brian.richardson@intel.com>, 
 "Kinney, Michael D" <michael.d.kinney@intel.com>,
 Laszlo Ersek <lersek@redhat.com>, "Zeng, Star" <star.zeng@intel.com>
Subject: Re: [PATCH 0/4] MdeModulePkg: add support for dispatching foreign arch PE/COFF images
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On 12 September 2018 at 16:55, Gao, Liming <liming.gao@intel.com> wrote:
> Ard:
>   What's purpose to run the not native image in emulator? And, what should be done in the emulator driver, such as X64Emulator? Is the emulator responsible to translate the instruction between the different arch? I see X64Emualtor bases on qemu code.
>

The primary use case is option ROMs on PCIe cards.