[edk2-devel] [PATCH v6 08/11] OvmfPkg/PciHostBridgeUtilityLib: Extend parameter list of GetRootBridges

Laszlo Ersek lersek at redhat.com
Wed Jan 20 13:34:05 UTC 2021


On 01/19/21 02:12, Jiahui Cen via groups.io wrote:
> Extend parameter list of PciHostBridgeUtilityGetRootBridges() with
> DmaAbove4G, NoExtendedConfigSpace to support for ArmVirtPkg.
> 
> BZ: https://bugzilla.tianocore.org/show_bug.cgi?id=3059
> 
> Cc: Jordan Justen <jordan.l.justen at intel.com>
> Cc: Laszlo Ersek <lersek at redhat.com>
> Cc: Ard Biesheuvel <ard.biesheuvel at arm.com>
> Signed-off-by: Jiahui Cen <cenjiahui at huawei.com>
> Signed-off-by: Yubo Miao <miaoyubo at huawei.com>
> ---
>  OvmfPkg/Library/PciHostBridgeUtilityLib/PciHostBridgeUtilityLib.inf |  4 ---
>  OvmfPkg/Include/Library/PciHostBridgeUtilityLib.h                   | 24 ++++++++------
>  OvmfPkg/Library/PciHostBridgeLib/PciHostBridgeLib.c                 |  5 +++
>  OvmfPkg/Library/PciHostBridgeUtilityLib/PciHostBridgeUtilityLib.c   | 34 +++++++++++---------
>  4 files changed, 39 insertions(+), 28 deletions(-)
> 
> diff --git a/OvmfPkg/Library/PciHostBridgeUtilityLib/PciHostBridgeUtilityLib.inf b/OvmfPkg/Library/PciHostBridgeUtilityLib/PciHostBridgeUtilityLib.inf
> index fdae8cfe872e..83a734c1725e 100644
> --- a/OvmfPkg/Library/PciHostBridgeUtilityLib/PciHostBridgeUtilityLib.inf
> +++ b/OvmfPkg/Library/PciHostBridgeUtilityLib/PciHostBridgeUtilityLib.inf
> @@ -39,9 +39,5 @@ [LibraryClasses]
>    DebugLib
>    DevicePathLib
>    MemoryAllocationLib
> -  PcdLib
>    PciLib
>    QemuFwCfgLib
> -
> -[Pcd]
> -  gUefiOvmfPkgTokenSpaceGuid.PcdOvmfHostBridgePciDevId
> diff --git a/OvmfPkg/Include/Library/PciHostBridgeUtilityLib.h b/OvmfPkg/Include/Library/PciHostBridgeUtilityLib.h
> index 2b7d5d3725c3..a0ea44d96a67 100644
> --- a/OvmfPkg/Include/Library/PciHostBridgeUtilityLib.h
> +++ b/OvmfPkg/Include/Library/PciHostBridgeUtilityLib.h
> @@ -102,23 +102,27 @@ PciHostBridgeUtilityUninitRootBridge (
>  /**
>    Utility function to return all the root bridge instances in an array.
>  
> -  @param[out] Count            The number of root bridge instances.
> +  @param[out] Count                  The number of root bridge instances.
>  
> -  @param[in]  Attributes       Initial attributes.
> +  @param[in]  Attributes             Initial attributes.
>  
> -  @param[in]  AllocAttributes  Allocation attributes.
> +  @param[in]  AllocAttributes        Allocation attributes.
>  
> -  @param[in]  Io               IO aperture.
> +  @param[in]  DmaAbove4G             DMA above 4GB memory.
>  
> -  @param[in]  Mem              MMIO aperture.
> +  @param[in]  NoExtendedConfigSpace  No Extended Config Space.
>  
> -  @param[in]  MemAbove4G       MMIO aperture above 4G.
> +  @param[in]  Io                     IO aperture.
>  
> -  @param[in]  PMem             Prefetchable MMIO aperture.
> +  @param[in]  Mem                    MMIO aperture.
>  
> -  @param[in]  PMemAbove4G      Prefetchable MMIO aperture above 4G.
> +  @param[in]  MemAbove4G             MMIO aperture above 4G.
>  
> -  @return                      All the root bridge instances in an array.
> +  @param[in]  PMem                   Prefetchable MMIO aperture.
> +
> +  @param[in]  PMemAbove4G            Prefetchable MMIO aperture above 4G.
> +
> +  @return                            All the root bridge instances in an array.
>  **/
>  PCI_ROOT_BRIDGE *
>  EFIAPI
> @@ -126,6 +130,8 @@ PciHostBridgeUtilityGetRootBridges (
>    OUT UINTN                    *Count,
>    IN  UINT64                   Attributes,
>    IN  UINT64                   AllocationAttributes,
> +  IN  BOOLEAN                  DmaAbove4G,
> +  IN  BOOLEAN                  NoExtendedConfigSpace,
>    IN  PCI_ROOT_BRIDGE_APERTURE *Io,
>    IN  PCI_ROOT_BRIDGE_APERTURE *Mem,
>    IN  PCI_ROOT_BRIDGE_APERTURE *MemAbove4G,
> diff --git a/OvmfPkg/Library/PciHostBridgeLib/PciHostBridgeLib.c b/OvmfPkg/Library/PciHostBridgeLib/PciHostBridgeLib.c
> index 6ac41ff853a9..91b9e6baa1e8 100644
> --- a/OvmfPkg/Library/PciHostBridgeLib/PciHostBridgeLib.c
> +++ b/OvmfPkg/Library/PciHostBridgeLib/PciHostBridgeLib.c
> @@ -9,6 +9,9 @@
>  **/
>  #include <PiDxe.h>
>  
> +#include <IndustryStandard/Pci.h>

(1) This #include directive does not belong in this patch. It is needed
in the next patch in the series (i.e., #9), where a reference to
PCI_MAX_BUS is added to this source file.

IOW, you didn't split patch v4 7/9 entirely correctly.

I guess I'm too tired to obsess about this though.

Reviewed-by: Laszlo Ersek <lersek at redhat.com>

Laszlo


> +#include <IndustryStandard/Q35MchIch9.h>
> +
>  #include <Protocol/PciHostBridgeResourceAllocation.h>
>  #include <Protocol/PciRootBridgeIo.h>
>  
> @@ -80,6 +83,8 @@ PciHostBridgeGetRootBridges (
>      Count,
>      Attributes,
>      AllocationAttributes,
> +    FALSE,
> +    PcdGet16 (PcdOvmfHostBridgePciDevId) != INTEL_Q35_MCH_DEVICE_ID,
>      &Io,
>      &Mem,
>      &MemAbove4G,
> diff --git a/OvmfPkg/Library/PciHostBridgeUtilityLib/PciHostBridgeUtilityLib.c b/OvmfPkg/Library/PciHostBridgeUtilityLib/PciHostBridgeUtilityLib.c
> index b1e74a469d50..1d78984b83ad 100644
> --- a/OvmfPkg/Library/PciHostBridgeUtilityLib/PciHostBridgeUtilityLib.c
> +++ b/OvmfPkg/Library/PciHostBridgeUtilityLib/PciHostBridgeUtilityLib.c
> @@ -12,12 +12,10 @@
>  
>  #include <IndustryStandard/Acpi10.h>
>  #include <IndustryStandard/Pci.h>
> -#include <IndustryStandard/Q35MchIch9.h>
>  #include <Library/BaseMemoryLib.h>
>  #include <Library/DebugLib.h>
>  #include <Library/DevicePathLib.h>
>  #include <Library/MemoryAllocationLib.h>
> -#include <Library/PcdLib.h>
>  #include <Library/PciHostBridgeUtilityLib.h>
>  #include <Library/PciLib.h>
>  #include <Library/QemuFwCfgLib.h>
> @@ -192,23 +190,27 @@ PciHostBridgeUtilityUninitRootBridge (
>  /**
>    Utility function to return all the root bridge instances in an array.
>  
> -  @param[out] Count            The number of root bridge instances.
> +  @param[out] Count                  The number of root bridge instances.
>  
> -  @param[in]  Attributes       Initial attributes.
> +  @param[in]  Attributes             Initial attributes.
>  
> -  @param[in]  AllocAttributes  Allocation attributes.
> +  @param[in]  AllocAttributes        Allocation attributes.
>  
> -  @param[in]  Io               IO aperture.
> +  @param[in]  DmaAbove4G             DMA above 4GB memory.
>  
> -  @param[in]  Mem              MMIO aperture.
> +  @param[in]  NoExtendedConfigSpace  No Extended Config Space.
>  
> -  @param[in]  MemAbove4G       MMIO aperture above 4G.
> +  @param[in]  Io                     IO aperture.
>  
> -  @param[in]  PMem             Prefetchable MMIO aperture.
> +  @param[in]  Mem                    MMIO aperture.
>  
> -  @param[in]  PMemAbove4G      Prefetchable MMIO aperture above 4G.
> +  @param[in]  MemAbove4G             MMIO aperture above 4G.
>  
> -  @return                      All the root bridge instances in an array.
> +  @param[in]  PMem                   Prefetchable MMIO aperture.
> +
> +  @param[in]  PMemAbove4G            Prefetchable MMIO aperture above 4G.
> +
> +  @return                            All the root bridge instances in an array.
>  **/
>  PCI_ROOT_BRIDGE *
>  EFIAPI
> @@ -216,6 +218,8 @@ PciHostBridgeUtilityGetRootBridges (
>    OUT UINTN                    *Count,
>    IN  UINT64                   Attributes,
>    IN  UINT64                   AllocationAttributes,
> +  IN  BOOLEAN                  DmaAbove4G,
> +  IN  BOOLEAN                  NoExtendedConfigSpace,
>    IN  PCI_ROOT_BRIDGE_APERTURE *Io,
>    IN  PCI_ROOT_BRIDGE_APERTURE *Mem,
>    IN  PCI_ROOT_BRIDGE_APERTURE *MemAbove4G,
> @@ -295,8 +299,8 @@ PciHostBridgeUtilityGetRootBridges (
>          Attributes,
>          Attributes,
>          AllocationAttributes,
> -        FALSE,
> -        PcdGet16 (PcdOvmfHostBridgePciDevId) != INTEL_Q35_MCH_DEVICE_ID,
> +        DmaAbove4G,
> +        NoExtendedConfigSpace,
>          (UINT8) LastRootBridgeNumber,
>          (UINT8) (RootBridgeNumber - 1),
>          Io,
> @@ -322,8 +326,8 @@ PciHostBridgeUtilityGetRootBridges (
>      Attributes,
>      Attributes,
>      AllocationAttributes,
> -    FALSE,
> -    PcdGet16 (PcdOvmfHostBridgePciDevId) != INTEL_Q35_MCH_DEVICE_ID,
> +    DmaAbove4G,
> +    NoExtendedConfigSpace,
>      (UINT8) LastRootBridgeNumber,
>      PCI_MAX_BUS,
>      Io,
> 



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