OvmfPkg: PlatformBdsLib: debug log interrupt line assignments
OvmfPkg: PlatformBdsLib: debug log interrupt line assignments

These messages are helpful for comparing the assignments made by OVMF
against those made by SeaBIOS. To SeaBIOS a small debug patch like the
following can be applied:

> diff --git a/src/fw/pciinit.c b/src/fw/pciinit.c
> index ac39d23..9e61c22 100644
> --- a/src/fw/pciinit.c
> +++ b/src/fw/pciinit.c
> @@ -308,8 +308,12 @@ static void pci_bios_init_device(struct pci_device *pci)
>
>      /* map the interrupt */
>      int pin = pci_config_readb(bdf, PCI_INTERRUPT_PIN);
> -    if (pin != 0)
> -        pci_config_writeb(bdf, PCI_INTERRUPT_LINE, pci_slot_get_irq(pci, pin));
> +    if (pin != 0) {
> +        int irqline = pci_slot_get_irq(pci, pin);
> +
> +        pci_config_writeb(bdf, PCI_INTERRUPT_LINE, irqline);
> +        dprintf(1, "assigned irq line %d\n", irqline);
> +    }
>
>      pci_init_device(pci_device_tbl, pci, NULL);
>

Cc: Jordan Justen <jordan.l.justen@intel.com>
Cc: Gabriel Somlo <somlo@cmu.edu>
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Acked-by: Gabriel Somlo <somlo@cmu.edu>
Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>

git-svn-id: 3158a46dfd52e07d1fda3e32e1ab2e353a00b20f@17952 6f19259b-4bc3-4df7-8a09-765794883524

MattDevo/edk2,MattDevo/edk2,MattDevo/edk2,MattDevo/edk2,MattDevo/edk2,MattDevo/edk2,MattDevo/edk2,MattDevo/edk2