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| author | Laszlo Ersek <lersek@redhat.com> | 2015-09-24 21:40:36 +0000 |
|---|---|---|
| committer | lersek <lersek@Edk2> | 2015-09-24 21:40:36 +0000 |
| commit | 50b91449a3a073af3a7c87af83002016e7e34cc4 (patch) | |
| tree | cd8f396193928b044d9a5d1cd841d0bf5293dcfb /ArmVirtPkg/ArmVirtPkg.dec | |
| parent | 6add86ab5967931ef9bca871931443e69f9cc09d (diff) | |
| download | edk2-50b91449a3a073af3a7c87af83002016e7e34cc4.tar.gz | |
ArmVirtPkg: VirtFdtDxe: detect fw-cfg DMA interface from the DTB
A DMA-like transfer interface has recently been implemented in QEMU for
fw-cfg. For ARM and AARCH64 virtual machines, the binding prescribes a new
8-byte wide register at offset 0x10 in the register block. Make VirtFdtDxe
expose this register if it is present.
Please see "docs/specs/fw_cfg.txt" in the QEMU tree for more information.
Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@18544 6f19259b-4bc3-4df7-8a09-765794883524
Diffstat (limited to 'ArmVirtPkg/ArmVirtPkg.dec')
| -rw-r--r-- | ArmVirtPkg/ArmVirtPkg.dec | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/ArmVirtPkg/ArmVirtPkg.dec b/ArmVirtPkg/ArmVirtPkg.dec index d987035515..89e8448a84 100644 --- a/ArmVirtPkg/ArmVirtPkg.dec +++ b/ArmVirtPkg/ArmVirtPkg.dec @@ -67,6 +67,7 @@ gArmVirtTokenSpaceGuid.PcdFwCfgSelectorAddress|0x0|UINT64|0x00000004
gArmVirtTokenSpaceGuid.PcdFwCfgDataAddress|0x0|UINT64|0x00000005
+ gArmVirtTokenSpaceGuid.PcdFwCfgDmaAddress|0x0|UINT64|0x00000009
#
# Supported GIC revision (2, 3, ...)
|