On 11/28/14 00:19, Laszlo Ersek wrote:
> Qemu's firmware configuration interface consists of two MMIO registers, a
> 16-bit selector and an 8-bit data register. Parse their addresses and
> verify their sizes from the DTB, and expose them to the rest of DXE by
> storing them in dynamic PCDs.
>
> Contributed-under: TianoCore Contribution Agreement 1.0
> Signed-off-by: Laszlo Ersek <ler...@redhat.com>
> ---
> ArmPlatformPkg/ArmVirtualizationPkg/VirtFdtDxe/VirtFdtDxe.inf | 2 ++
> ArmPlatformPkg/ArmVirtualizationPkg/VirtFdtDxe/VirtFdtDxe.c | 26
> ++++++++++++++++++++++++++
> ArmPlatformPkg/ArmVirtualizationPkg/ArmVirtualizationPkg.dec | 3 +++
> ArmPlatformPkg/ArmVirtualizationPkg/ArmVirtualizationQemu.dsc | 3 +++
> 4 files changed, 34 insertions(+)
>
> diff --git a/ArmPlatformPkg/ArmVirtualizationPkg/VirtFdtDxe/VirtFdtDxe.inf
> b/ArmPlatformPkg/ArmVirtualizationPkg/VirtFdtDxe/VirtFdtDxe.inf
> index 1c9dd20..daafe6c 100644
> --- a/ArmPlatformPkg/ArmVirtualizationPkg/VirtFdtDxe/VirtFdtDxe.inf
> +++ b/ArmPlatformPkg/ArmVirtualizationPkg/VirtFdtDxe/VirtFdtDxe.inf
> @@ -47,6 +47,8 @@
> [Pcd]
> gArmVirtualizationTokenSpaceGuid.PcdDeviceTreeBaseAddress
> gArmVirtualizationTokenSpaceGuid.PcdArmPsciMethod
> + gArmVirtualizationTokenSpaceGuid.PcdFwCfgSelectorAddress
> + gArmVirtualizationTokenSpaceGuid.PcdFwCfgDataAddress
> gArmTokenSpaceGuid.PcdGicDistributorBase
> gArmTokenSpaceGuid.PcdGicInterruptInterfaceBase
> gArmTokenSpaceGuid.PcdArmArchTimerSecIntrNum
> diff --git a/ArmPlatformPkg/ArmVirtualizationPkg/VirtFdtDxe/VirtFdtDxe.c
> b/ArmPlatformPkg/ArmVirtualizationPkg/VirtFdtDxe/VirtFdtDxe.c
> index d002e66..f1b5283 100644
> --- a/ArmPlatformPkg/ArmVirtualizationPkg/VirtFdtDxe/VirtFdtDxe.c
> +++ b/ArmPlatformPkg/ArmVirtualizationPkg/VirtFdtDxe/VirtFdtDxe.c
> @@ -44,6 +44,7 @@ typedef enum {
> PropertyTypeUart,
> PropertyTypeTimer,
> PropertyTypePsci,
> + PropertyTypeFwCfg,
> } PROPERTY_TYPE;
>
> typedef struct {
> @@ -59,6 +60,7 @@ STATIC CONST PROPERTY CompatibleProperties[] = {
> { PropertyTypeTimer, "arm,armv7-timer" },
> { PropertyTypeTimer, "arm,armv8-timer" },
> { PropertyTypePsci, "arm,psci-0.2" },
> + { PropertyTypeFwCfg, "fw-cfg,mmio" },
The part of the DTB that exposes this device was slightly changed. Since
there were no review comments thus far, I'll post a v2 of this edk2 series.
Thanks
Laszlo
