On Aug 7, 2014, at 3:08 PM, Chris Cuthbert <nd6...@hotmail.com> wrote:
> Hi Laszlo,
>
> I don't understand. When I break into UEFI shell, and run 'dh', I can see
> device driver handles. This means that 'BdsConnectAllDrivers' was called and
> that in turn called 'CoreConnectController'. Now the question is, if a driver
> generates a child handle, 'CoreConnectController' should be called on that
> child handle. From the code, I see that is only possible if protocol has not
> been opened by child handle.
> What do you think ?
>
I can’t remember the behavior of the new shell, but the old shell would connect
devices as it was loaded so the state before the shell loaded, and after the
shell loaded where not the same.
Thanks,
Andrew Fish
>
> Date: Thu, 7 Aug 2014 23:29:46 +0200
> From: ler...@redhat.com
> To: edk2-devel@lists.sourceforge.net
> Subject: Re: [edk2] UEFI Shell Command "ifconfig" Error
>
> On 08/07/14 23:05, Chris Cuthbert wrote:
> > This is ARM from edk2. All open source, nothing proprietary.
>
> Ah. Yes. I recall that. Actually I have a downstream hack that is
> related. I'll attach it just as illustration (the other tree patches
> just increase the convenience). The point is (IIRC!) that ARM BDS does
> not call BdsConnectAllDrivers() before reaching the boot menu. I guess
> that's probably the issue.
>
> In my case I wanted to auto-generate a boot option (for the boot menu)
> for whatever disk partition that looked like an EFI System Partition.
> The disk in question that I had was a virtio-blk disk, and the patch
> didn't work initially. The reason was that at that point the disk had
> not been connected yet. So, IMHO you can solve this by inserting a call
> to BdsConnectAllDrivers() in a strategic point. You should probably find
> that point yourself; for me it was DefineDefaultBootEntries().
>
> (Note: I haven't tested this patch in a while, but the above was
> certainly the case when I last run it.)
>
> Laszlo
>
>
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