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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/ArmVirtXen.dsc | |
| parent | 6add86ab5967931ef9bca871931443e69f9cc09d (diff) | |
| download | edk2-50b91449a3a073af3a7c87af83002016e7e34cc4.tar.gz edk2-50b91449a3a073af3a7c87af83002016e7e34cc4.tar.bz2 edk2-50b91449a3a073af3a7c87af83002016e7e34cc4.zip | |
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/ArmVirtXen.dsc')
| -rw-r--r-- | ArmVirtPkg/ArmVirtXen.dsc | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/ArmVirtPkg/ArmVirtXen.dsc b/ArmVirtPkg/ArmVirtXen.dsc index 5c19afca30..ac37cd2a43 100644 --- a/ArmVirtPkg/ArmVirtXen.dsc +++ b/ArmVirtPkg/ArmVirtXen.dsc @@ -144,6 +144,7 @@ gArmVirtTokenSpaceGuid.PcdFwCfgSelectorAddress|0x0
gArmVirtTokenSpaceGuid.PcdFwCfgDataAddress|0x0
+ gArmVirtTokenSpaceGuid.PcdFwCfgDmaAddress|0x0
gArmVirtTokenSpaceGuid.PcdArmPsciMethod|0
|