From: Laszlo Ersek <lersek@redhat.com>
To: Andrew Fish <afish@apple.com>, "David F." <df7729@gmail.com>
Cc: edk2-devel@lists.01.org
Subject: Re: Boot####, Key####
Date: Fri, 8 Sep 2017 00:12:11 +0200 [thread overview]
Message-ID: <ae4ff45b-f7c3-99dd-0c63-c33ffd3d0577@redhat.com> (raw)
In-Reply-To: <D30458DF-1FA6-412A-B522-2E9F400E25AA@apple.com>
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
prev parent reply other threads:[~2017-09-07 22:09 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <CAGRSmLunzkLoNGU6T6bGN9KGbTHyiZ3fBeVCi+xAgRnpNJZJpQ@mail.gmail.com>
2017-09-07 20:01 ` Boot####, Key#### David F.
2017-09-07 20:32 ` Andrew Fish
2017-09-07 22:12 ` Laszlo Ersek [this message]
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