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To: Andrew Fish <afish@apple.com>, "David F." <df7729@gmail.com>
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From: Laszlo Ersek <lersek@redhat.com>
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Date: Fri, 8 Sep 2017 00:12:11 +0200
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 (mx1.redhat.com [10.5.110.27]); Thu, 07 Sep 2017 22:12:13 +0000 (UTC)
Subject: Re: Boot####, Key####
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On 09/07/17 22:32, Andrew Fish wrote:
> 
>> On Sep 7, 2017, at 1:01 PM, David F. <df7729@gmail.com> wrote:
>>
>> Hi,
>>
>> Implementing support for UEFI inside different OS environments, I
>> don't see anything in the spec about being able to find the various
>> Boot#### and Key#### values without trying 0-0xFFFF which is slow
>> (takes 10+ seconds).    What's the better way?
>>
> 
> Usually there is another variable that implies the Boot#### value that is in use, like BootOrder. 

There's also GetNextVariableName() -- iterating through, say, ~50
variables that all exist is likely faster than querying ~65500 that don't.

Laszlo