From: Ard Biesheuvel <ard.biesheuvel@linaro.org>
To: "Carsey, Jaben" <jaben.carsey@intel.com>
Cc: "Gao, Liming" <liming.gao@intel.com>,
"Ni, Ruiyu" <ruiyu.ni@intel.com>,
"Zimmer, Vincent" <vincent.zimmer@intel.com>,
"Dong, Eric" <eric.dong@intel.com>,
"edk2-devel@lists.01.org" <edk2-devel@lists.01.org>,
"agraf@suse.de" <agraf@suse.de>, Andrew Fish <afish@apple.com>,
"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
Date: Wed, 12 Sep 2018 17:11:20 +0200 [thread overview]
Message-ID: <CAKv+Gu8_ciGhp3xV8RnG27rTs89wVkt+wTF51-P6CTtQWDaXsQ@mail.gmail.com> (raw)
In-Reply-To: <CB6E33457884FA40993F35157061515CA41384F9@FMSMSX103.amr.corp.intel.com>
On 12 September 2018 at 17:07, Carsey, Jaben <jaben.carsey@intel.com> wrote:
> Ard,
>
> What happens when more than one emulators want to co-exist?
>
The protocol does not support that at the moment, and it is doubtful
that it would work in practice: the X86-on-AARCH64 emulator works by
mapping the X86 PE/COFF code regions as non-executable, and trapping
the resulting exception to invoke the emulator. Running multiple
emulators side by side would require a considerable amount of
synchronization, so it only makes sense to consider that if there is a
compelling use case. And if there is, we could still abstract from
this at the top level (i.e., this protocol)
next prev parent reply other threads:[~2018-09-12 15:11 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-09-12 13:21 [PATCH 0/4] MdeModulePkg: add support for dispatching foreign arch PE/COFF images Ard Biesheuvel
2018-09-12 13:21 ` [PATCH 1/4] MdeModulePkg: introduce PE/COFF image emulator protocol Ard Biesheuvel
2018-09-13 10:05 ` Zeng, Star
2018-09-13 10:36 ` Ard Biesheuvel
2018-09-12 13:21 ` [PATCH 2/4] MdeModulePkg/DxeCore: invoke the emulator protocol for foreign images Ard Biesheuvel
2018-09-13 10:23 ` Zeng, Star
2018-09-13 10:37 ` Ard Biesheuvel
2018-09-12 13:21 ` [PATCH 3/4] MdeModulePkg/PciBusDxe: invoke PE/COFF emulator for foreign option ROMs Ard Biesheuvel
2018-09-13 10:24 ` Zeng, Star
2018-09-13 10:46 ` Ard Biesheuvel
2018-09-12 13:21 ` [PATCH 4/4] MdeModulePkg/UefiBootManagerLib: allow foreign Driver#### images Ard Biesheuvel
2018-09-12 14:55 ` [PATCH 0/4] MdeModulePkg: add support for dispatching foreign arch PE/COFF images Gao, Liming
2018-09-12 14:56 ` Ard Biesheuvel
2018-09-12 15:07 ` Carsey, Jaben
2018-09-12 15:11 ` Ard Biesheuvel [this message]
2018-09-12 15:10 ` Kinney, Michael D
2018-09-13 10:36 ` Ard Biesheuvel
2018-09-13 17:20 ` Kinney, Michael D
2018-09-15 13:28 ` Ard Biesheuvel
2018-09-17 4:03 ` Kinney, Michael D
2018-09-19 19:35 ` Andrew Fish
2018-09-19 20:43 ` Ard Biesheuvel
2018-09-21 18:51 ` Andrew Fish
2018-09-12 15:48 ` Carsey, Jaben
2018-09-12 18:50 ` Zimmer, Vincent
2018-09-13 0:47 ` Shi, Steven
2018-09-13 5:18 ` Ard Biesheuvel
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