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OvmfPkg: factor the IO aperture shared by all PCI root bridges into PCDs 

At the moment we don't intend to customize this aperture at runtime, but
going forward, two modules will need to know about it: PlatformPei (as
before), and OVMF's upcoming PciHostBridgeLib instance (because the core
PciHostBridgeDxe driver requires the library to state the exact apertures
for all root bridges).

On QEMU, all root bridges share the same IO port aperture, hence one pair
of PCDs suffices.

Cc: Jordan Justen <jordan.l.justen@intel.com>
Cc: Ruiyu Ni <ruiyu.ni@intel.com>
Cc: Marcel Apfelbaum <marcel@redhat.com>
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>
This commit is contained in:
Laszlo Ersek 2016-02-26 16:29:19 +01:00
parent d54c5fdcaa
commit e705f899af
3 changed files with 9 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
OvmfPkg/OvmfPkg.dec
View File

@ -114,6 +114,11 @@
gUefiOvmfPkgTokenSpaceGuid.PcdGuidedExtractHandlerTableSize|0x0|UINT32|0x1a
gUefiOvmfPkgTokenSpaceGuid.PcdOvmfDecompressionScratchEnd|0x0|UINT32|0x1f
## The IO port aperture shared by all PCI root bridges.
#
gUefiOvmfPkgTokenSpaceGuid.PcdPciIoBase|0xC000|UINT64|0x22
gUefiOvmfPkgTokenSpaceGuid.PcdPciIoSize|0x4000|UINT64|0x23
[PcdsDynamic, PcdsDynamicEx]
gUefiOvmfPkgTokenSpaceGuid.PcdEmuVariableEvent|0|UINT64|2
gUefiOvmfPkgTokenSpaceGuid.PcdOvmfFlashVariablesEnable|FALSE|BOOLEAN|0x10

4
OvmfPkg/PlatformPei/Platform.c
View File

@ -201,8 +201,8 @@ MemMapInitialization (
EFI_RESOURCE_IO,
EFI_RESOURCE_ATTRIBUTE_PRESENT |
EFI_RESOURCE_ATTRIBUTE_INITIALIZED,
0xC000,
0x4000
PcdGet64 (PcdPciIoBase),
PcdGet64 (PcdPciIoSize)
);
//

2
OvmfPkg/PlatformPei/PlatformPei.inf
View File

@ -75,6 +75,8 @@
gUefiOvmfPkgTokenSpaceGuid.PcdOvmfLockBoxStorageSize
gUefiOvmfPkgTokenSpaceGuid.PcdGuidedExtractHandlerTableSize
gUefiOvmfPkgTokenSpaceGuid.PcdOvmfHostBridgePciDevId
gUefiOvmfPkgTokenSpaceGuid.PcdPciIoBase
gUefiOvmfPkgTokenSpaceGuid.PcdPciIoSize
gUefiOvmfPkgTokenSpaceGuid.PcdOvmfDecompressionScratchEnd
gUefiOvmfPkgTokenSpaceGuid.PcdQ35TsegMbytes
gEfiIntelFrameworkModulePkgTokenSpaceGuid.PcdS3AcpiReservedMemorySize