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Re: Windows on ARM machines : UEFI bugs

From: Andrei Borzenkov
Subject: Re: Windows on ARM machines : UEFI bugs
Date: Tue, 23 Aug 2016 13:09:14 +0300

On Tue, Aug 23, 2016 at 12:39 PM, my123 (@never_released)
<address@hidden> wrote:
> Note that on the Surface RT, the first GOP handle is unusable, the search
> for handles has to start at handle 1. This bug doesn’t affect other WoA
> devices.

Well, someone who has access to such devices needs to find out how to
detect this condition.

> On WoA(Windows on ARM) machines, ExitBootServices doesn’t work, especially
> on nVidia devices. What action should be taken?

Not sure I understand what you say. Could you elaborate on what you
are trying to do and what does not work? For booting Windows loader is
launched as EFI executable so no ExitBootServices happens.

> (this is a part of the port of Linux to these machines, after neutralizing
> Secure Boot)

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