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OvmfPkg/PlatformPei: set PCI IO port aperture dynamically

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Make PcdPciIoBase and PcdPciIoSize dynamic PCDs, and set them in
MemMapInitialization(), where we produce our EFI_RESOURCE_IO descriptor
HOB. (The PCD is consumed by the core PciHostBridgeDxe driver, through our
PciHostBridgeLib instance.)

Take special care to keep the GCD IO space map unchanged on all platforms
OVMF runs on.

Cc: Gabriel Somlo <somlo@cmu.edu>
Cc: Jordan Justen <jordan.l.justen@intel.com>
Ref: https://bugzilla.redhat.com/show_bug.cgi?id=1333238
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>
Tested-by: Gabriel Somlo <somlo@cmu.edu>
This commit is contained in:
Laszlo Ersek
2016-05-09 22:39:44 +02:00
parent 1466b76f93
commit c4df7fd01f
5 changed files with 30 additions and 16 deletions
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2
OvmfPkg/OvmfPkgX64.dsc
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@@ -465,6 +465,8 @@
gEfiMdeModulePkgTokenSpaceGuid.PcdVideoVerticalResolution|600
gEfiMdeModulePkgTokenSpaceGuid.PcdAcpiS3Enable|FALSE
gUefiOvmfPkgTokenSpaceGuid.PcdOvmfHostBridgePciDevId|0
gUefiOvmfPkgTokenSpaceGuid.PcdPciIoBase|0x0
gUefiOvmfPkgTokenSpaceGuid.PcdPciIoSize|0x0
gUefiOvmfPkgTokenSpaceGuid.PcdPciMmio32Base|0x0
gUefiOvmfPkgTokenSpaceGuid.PcdPciMmio32Size|0x0
gUefiOvmfPkgTokenSpaceGuid.PcdPciMmio64Base|0x0