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| author | Laszlo Ersek <lersek@redhat.com> | 2015-02-23 16:03:32 +0000 |
|---|---|---|
| committer | lersek <lersek@Edk2> | 2015-02-23 16:03:32 +0000 |
| commit | 1ff2b5a833ab9000f73dfc771a5d730f3c3a8db1 (patch) | |
| tree | afa8afcfe448d64be299c0fb3558b744e6f341de /ArmPlatformPkg | |
| parent | 286c88bcce13dc88fffbcedd0fd2455790078e97 (diff) | |
| download | edk2-platforms-1ff2b5a833ab9000f73dfc771a5d730f3c3a8db1.tar.xz | |
ArmVirtualizationPkg/ArmVirtualizationQemu: enable IO addressing
Set gEmbeddedTokenSpaceGuid.PcdPrePiCpuIoSize to 16, which determines the
maximum "I/O address width".
This ensures, through the BuildCpuHob() call in
"ArmPkg/Drivers/CpuPei/CpuPei.c", that the inital I/O Space Map will
consist of a 16-bit wide "splittable" entry, when the DXE core starts (see
CoreInitializeGcdServices() in "MdeModulePkg/Core/Dxe/Gcd/Gcd.c"):
GCD:Initial GCD I/O Space Map
GCDIoType Range
========== =================================
NonExist 0000000000000000-000000000000FFFF
Otherwise this range would have size 0, and (since it could not be split)
any gDS->AddIoSpace() calls would fail.
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Olivier Martin <Olivier.martin@arm.com>
git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@16902 6f19259b-4bc3-4df7-8a09-765794883524
Diffstat (limited to 'ArmPlatformPkg')
| -rw-r--r-- | ArmPlatformPkg/ArmVirtualizationPkg/ArmVirtualizationQemu.dsc | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/ArmPlatformPkg/ArmVirtualizationPkg/ArmVirtualizationQemu.dsc b/ArmPlatformPkg/ArmVirtualizationPkg/ArmVirtualizationQemu.dsc index 29d07788dc..19776100a5 100644 --- a/ArmPlatformPkg/ArmVirtualizationPkg/ArmVirtualizationQemu.dsc +++ b/ArmPlatformPkg/ArmVirtualizationPkg/ArmVirtualizationQemu.dsc @@ -156,6 +156,12 @@ gEfiIntelFrameworkModulePkgTokenSpaceGuid.PcdShellFile|{ 0x83, 0xA5, 0x04, 0x7C, 0x3E, 0x9E, 0x1C, 0x4F, 0xAD, 0x65, 0xE0, 0x52, 0x68, 0xD0, 0xB4, 0xD1 }
!endif
+ #
+ # The maximum physical I/O addressability of the processor, set with
+ # BuildCpuHob().
+ #
+ gEmbeddedTokenSpaceGuid.PcdPrePiCpuIoSize|16
+
[PcdsDynamicDefault.common]
## If TRUE, OvmfPkg/AcpiPlatformDxe will not wait for PCI
# enumeration to complete before installing ACPI tables.
|