On 2012-6-16 0:51, Yinghai Lu wrote:
>
> still have some problem:
> pci_mmcfg_check_reserved==>is_mmconf_reserved
>
> will update cfg->end_bus.
Hi Yinghai,
How about following patch for this issue? I guess we need to
keep current behavior at boot time for backward compatibility, right?
---
@@ -472,6 +472,14 @@ static int __devinit is_mmconf_reserved(check_reserved_t is_reserved,
break;
}
+ /*
+ * For backward compatibility, we will adjust the MMCONFIG region
+ * at boot time if it's only partially reserved by firmware.
+ * For PCI host bridge hotplug at runtime, just reject it.
+ */
+ if (pci_mmcfg_running_state && old_size != size)
+ return 0;
+
if (size < (16UL<<20) && size != old_size)
return 0;
---
>
> Thanks
>
> Yinghai
>
> .
>
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