[edk2-devel] UefiPayloadPkg and over-eager PCI resource allocation?

[Guo Dong]

> -----Original Message-----
> From: devel at edk2.groups.io <devel at edk2.groups.io> On Behalf Of Matthew
> Garrett
> Sent: Thursday, January 7, 2021 3:40 PM
> To: Laszlo Ersek <lersek at redhat.com>
> Cc: devel at edk2.groups.io; You, Benjamin <benjamin.you at intel.com>; Dong,
> Guo <guo.dong at intel.com>; patrick.rudolph at 9elements.com
> Subject: Re: [edk2-devel] UefiPayloadPkg and over-eager PCI resource
> allocation?
> 
> On Thu, Jan 07, 2021 at 11:28:13PM +0100, Laszlo Ersek wrote:
> 
> > But then I run a git-log on
> >
> >   UefiPayloadPkg/Library/PciHostBridgeLib
> >
> > and I find *one* commit, namely the *ridiculously* huge commit
> > 04af8bf262f1 ("UefiPayloadPkg: Enhance UEFI payload for coreboot and
> > Slim Bootloader", 2019-04-15).
> 
> Yeah, that commit is present in my working tree. And there don't seem to
> be any recent changes to PciHostBridgeDxe. Hmm, now I'm confused.
> 
I don't remember we changed PciHostBridgeDxe recently. And also don't know
how it could work if the PCI resource has a big range including PCI CFG space.

Anyway, maybe you could narrow down which commit caused this issue.
Every time we made change, we tried to make it as compatible change.
But I did remove some hardcoded values in the UEFI payload from a big 
patch "UefiPayloadPkg: Remove PEI phase from Payload". But I don't know
how they could be related with your current issue.

Thanks,
Guo

> 
> 



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