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Date: Tue, 24 Mar 2015 06:47:02 -0700
From: Sergey Fedorov <serge.fdrv@gmail.com>
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Subject: Re: [Qemu-devel] GSoC Proposal: ARM Virtualization Extensions
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To: Merten Sach <msach@mailbox.tu-berlin.de>, Peter Maydell <peter.maydell@linaro.org>
Cc: "Edgar E. Iglesias" <edgar.iglesias@gmail.com>, QEMU Developers <qemu-devel@nongnu.org>

On 23.03.2015 04:29, Merten Sach wrote:
> On 21/03/15 04:16, Sergey Fedorov wrote:
>> Hi!
>>
>> I am currently working on AArch64 EL2 support. There is a plan to submit
>> the changes to the community. Merten, IIUYC, you are going to support
>> only AArch32 EL2?
>>
>> Best regards,
>> Sergey
> Hi
>
> Yes, my intention is to focus on AArch32 as I'm more familiar with that
> architecture.
>
> Thanks for the insight into the current state. As I understand, some parts of
> AArch64 and AArch32 EL2 modes share a some functionality. For example,
> * VGIC - compatible
> * Exception Routing - different interface but same function
> * Pagetable format - implemented with LPAE
> * Generic Timer - different interface but same function
>
> Are these assumptions correct? I hope I didn't simplify it to much.
>
> And also: does it make sense to work with your code? Are you planing to commit
> the changes before May?
>
> Would someone mentor this project?
>
> Best regards,
> Merten
>

Hi,

I didn't investigate the difference between AArch64 and AArch32. But I
believe that AArch64 should be better structured. As of GIC and Generic
Timer, I think you are right.

I plan to start committing it in coherent chunks as soon as I can. And
yes, I hope I finish it before May.

Best regards,
Sergey