[SeaBIOS] Re: [PATCH v2 1/3] csm: Call pci_probe_devices() late until PrepareToBoot is invoked by UEFI

[Bin Gao]

On Thu, Dec 19, 2019 at 09:11:22AM +0100, Gerd Hoffmann wrote:
> On Wed, Dec 18, 2019 at 11:04:26AM -0800, Bin Gao wrote:
> > On physical hardware, some PCI devices are not detectable when UEFI
> > BIOS invokes our InitializeYourself() function. But they are
> > guaranteed to be available before UEFI invokes our PreparToBoot()
> > function. So in the case of running CSM on physical hardware, we execute
> > pci_probe_devices() at PrepareToBoot() stage.
>
> Hmm, I'm wondering whenever we can just move the pci_probe_devices()
> call unconditionally (i.e. do it for qemu too).

In QEMU/OVMF case, all PCI devices are already available before the first call
InitializeYourself() comes from BIOS. So I think there is no need to apply this
change to QEMU.
> cheers,
>   Gerd