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ArmVirtPkg: implement DT-based ArmGicArchLib

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Since it is arguably incorrect to infer the GIC revision from CPU
ID and GIC feature registers on platforms that describe the GIC in
the device tree, this implements the library class ArmGicArchLib
tailored for such platforms.

The supported GIC revision is retrieved from the dynamic PCD that
is set based on the GIC DT node.

This means this library can only execute post DXE core, but this is
not a problem for any of the virt platforms.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Leif Lindholm <leif.lindholm@linaro.org>
Tested-by: Leif Lindholm <leif.lindholm@linaro.org>

git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@18102 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
Ard Biesheuvel
2015-07-28 20:45:36 +00:00
committed by abiesheuvel
parent ae26410e28
commit 15c9b25e5d
3 changed files with 116 additions and 1 deletions
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2
ArmVirtPkg/ArmVirt.dsc.inc
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@@ -76,7 +76,7 @@
ArmDisassemblerLib|ArmPkg/Library/ArmDisassemblerLib/ArmDisassemblerLib.inf
DmaLib|ArmPkg/Library/ArmDmaLib/ArmDmaLib.inf
ArmGicLib|ArmPkg/Drivers/ArmGic/ArmGicLib.inf
ArmGicArchLib|ArmPkg/Library/ArmGicArchLib/ArmGicArchLib.inf
ArmGicArchLib|ArmVirtPkg/Library/ArmVirtGicArchLib/ArmVirtGicArchLib.inf
ArmPlatformStackLib|ArmPlatformPkg/Library/ArmPlatformStackLib/ArmPlatformStackLib.inf
ArmSmcLib|ArmPkg/Library/ArmSmcLib/ArmSmcLib.inf
ArmHvcLib|ArmPkg/Library/ArmHvcLib/ArmHvcLib.inf