5:53 a.m.
Hi,
I'd like to use IKGT in a UEFI environment, but we require access to the
UEFI runtime services and to boot via the Linux UEFI handover protocol.
My understanding is that this is made difficult by the Multiboot
specification only providing 32-bit support and not passing ImageHandle.
So:
1) Other than these boot limitations, is there anything else in xmon
that assumes 32-bit?
2) I'm considering just implementing a replacement loader as an EFI
executable rather than worrying about the limitations of the multiboot
spec. Do you have any better ideas?
--
Matthew Garrett | mjg59(a)srcf.ucam.org
4:51 a.m.
New subject: UEFI support
Hi,
We have a test EFI loader that we use for our testing. We are evaluating to see if that
can be open soured. We will send out an update regarding this soon.
Thanks
Kuo-Lang Tseng
-----Original Message-----
From: Intel-KGT [mailto:intel-kgt-bounces@lists.01.org] On Behalf Of Matthew Garrett
Sent: Sunday, September 06, 2015 12:53 PM
To: intel-kgt(a)ml01.01.org
Subject: Re: [iKGT] UEFI support
Hi,
I'd like to use IKGT in a UEFI environment, but we require access to the UEFI runtime
services and to boot via the Linux UEFI handover protocol.
My understanding is that this is made difficult by the Multiboot specification only
providing 32-bit support and not passing ImageHandle.
So:
1) Other than these boot limitations, is there anything else in xmon that assumes 32-bit?
2) I'm considering just implementing a replacement loader as an EFI executable rather
than worrying about the limitations of the multiboot spec. Do you have any better ideas?
--
Matthew Garrett | mjg59(a)srcf.ucam.org
_______________________________________________
Intel-KGT mailing list
Intel-KGT(a)lists.01.org
https://lists.01.org/mailman/listinfo/intel-kgt
10:10 a.m.
New subject: UEFI support
1) Other than these boot limitations, is there anything else in xmon
that
assumes 32-bit?
There is nothing in xmon that assumes 32 bit. xmon itself is purely 64 bit and has no
BIOS, Firmware or EFI dependencies. We contain all of those dependencies in the loader.
We assumed a 32 bit boot path partly due to some history and the need to support 32 bit
Operating Systems. That is not the best idea when you are already in 64 bit.
2) I'm considering just implementing a replacement loader as an
EFI
executable rather than worrying about the limitations of the multiboot spec.
Do you have any better ideas?
In a pure EFI environment, that will work. You should be able to create an EFI loader and
have a pure 64 bit boot path.
We need to (and will) document the xmon handoff spec better so that you can kick it off in
any environment.
Hopefully the 64 bit EFI loader that we plan to open source will help in that regard.
-manohar
6:11 a.m.
New subject: UEFI support
On Tue, Sep 08, 2015 at 06:51:23PM +0000, Tseng, Kuo-Lang wrote:
Hi,
We have a test EFI loader that we use for our testing. We are evaluating to see if that
can be open soured. We will send out an update regarding this soon.
Great! Do you have any kind of timeline for that?
Thanks,
--
Matthew Garrett | mjg59(a)srcf.ucam.org
6:13 a.m.
New subject: UEFI support
Tentatively Monday.
Thanks
Kuo
-----Original Message-----
From: Matthew Garrett [mailto:mjg59@srcf.ucam.org]
Sent: Friday, September 11, 2015 1:11 PM
To: Tseng, Kuo-Lang
Cc: intel-kgt(a)ml01.01.org
Subject: Re: [iKGT] UEFI support
On Tue, Sep 08, 2015 at 06:51:23PM +0000, Tseng, Kuo-Lang wrote:
Hi,
We have a test EFI loader that we use for our testing. We are evaluating to see if that
can be open soured. We will send out an update regarding this soon.
Great! Do you have any kind of timeline for that?
Thanks,
--
Matthew Garrett | mjg59(a)srcf.ucam.org
2564
days inactive
2569
days old
4 comments
3 participants
participants (3)
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Castelino, Manohar R -
Matthew Garrett -
Tseng, Kuo-Lang