[Xen-devel] Xen: ARM: Support for mapping ECAM PCIe Config Space Specified In Static ACPI Table

[Jiandi An <anjiandi@xxxxxxxxxxxxxx>]

Hi Guys,

Xen currently doesn't map ECAM space specified in static ACPI table.  Seeking 
opinion on how this should be handled properly.  Each root complex ECAM region 
takes up 64K 4K pages (256MB).  For some platforms there might be multiple root 
complexes.  Is the plan to map all at once?  Julien has mentioned support for 
mapping ECAM may come when support for PCI passthrough is added, is that right? 
What mechanism will it be? Will Xen or dom0 be the one that parses the staic 
ACPI tables and map the ECAM space?

Thanks.

-- 
Jiandi An
Qualcomm Datacenter Technologies, Inc. as an affiliate of Qualcomm 
Technologies, Inc.
Qualcomm Technologies, Inc. is a member of the Code Aurora Forum, a Linux 
Foundation Collaborative Project.

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