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OvmfPkg/OvmfPkg.dec: Add 8259-related PCDs in OVMF DEC file 

REF:https://bugzilla.tianocore.org/show_bug.cgi?id=1496

According to the DEC file in PcAtChipsetPkg, this commit adds the two
8259-driver-related PCDs into the OvmfPkg DEC file.

Please note that, instead of adding the two PCDs under section:
[PcdsFixedAtBuild, PcdsDynamic, PcdsDynamicEx, PcdsPatchableInModule]

as in PcAtChipsetPkg.dec file, they are added in section:
[PcdsFixedAtBuild]

in OvmfPkg.dec instead.

Cc: Jordan Justen <jordan.l.justen@intel.com>
Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Cc: David Woodhouse <dwmw2@infradead.org>
Cc: Ray Ni <ray.ni@intel.com>
Signed-off-by: Hao Wu <hao.a.wu@intel.com>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
This commit is contained in:
Hao Wu 2019-04-02 15:28:50 +08:00
parent 10fa47e538
commit 460ffed242
1 changed files with 26 additions and 0 deletions
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26
OvmfPkg/OvmfPkg.dec
View File

@ -122,6 +122,32 @@
gUefiOvmfPkgTokenSpaceGuid.PcdGuidedExtractHandlerTableSize|0x0|UINT32|0x1a
gUefiOvmfPkgTokenSpaceGuid.PcdOvmfDecompressionScratchEnd|0x0|UINT32|0x1f
## Pcd8259LegacyModeMask defines the default mask value for platform. This
# value is determined.
# 1) If platform only support pure UEFI, value should be set to 0xFFFF or
# 0xFFFE; Because only clock interrupt is allowed in legacy mode in pure
# UEFI platform.
# 2) If platform install CSM and use thunk module:
# a) If thunk call provided by CSM binary requires some legacy interrupt
# support, the corresponding bit should be opened as 0.
# For example, if keyboard interfaces provided CSM binary use legacy
# keyboard interrupt in 8259 bit 1, then the value should be set to
# 0xFFFC.
# b) If all thunk call provied by CSM binary do not require legacy
# interrupt support, value should be set to 0xFFFF or 0xFFFE.
#
# The default value of legacy mode mask could be changed by
# EFI_LEGACY_8259_PROTOCOL->SetMask(). But it is rarely need change it
# except some special cases such as when initializing the CSM binary, it
# should be set to 0xFFFF to mask all legacy interrupt. Please restore the
# original legacy mask value if changing is made for these special case.
gUefiOvmfPkgTokenSpaceGuid.Pcd8259LegacyModeMask|0xFFFF|UINT16|0x3
## Pcd8259LegacyModeEdgeLevel defines the default edge level for legacy
# mode's interrrupt controller.
# For the corresponding bits, 0 = Edge triggered and 1 = Level triggered.
gUefiOvmfPkgTokenSpaceGuid.Pcd8259LegacyModeEdgeLevel|0x0000|UINT16|0x5
[PcdsDynamic, PcdsDynamicEx]
gUefiOvmfPkgTokenSpaceGuid.PcdEmuVariableEvent|0|UINT64|2
gUefiOvmfPkgTokenSpaceGuid.PcdOvmfFlashVariablesEnable|FALSE|BOOLEAN|0x10