Extend parameter list of PciHostBridgeUtilityInitRootBridge() with
DmaAbove4G and NoExtendedConfigSpace to prepare for sharing with
ArmVirtPkg.
BZ: https://bugzilla.tianocore.org/show_bug.cgi?id=3059
Cc: Jordan Justen <jordan.l.justen@intel.com>
Cc: Laszlo Ersek <lersek@redhat.com>
Cc: Ard Biesheuvel <ard.biesheuvel@arm.com>
Cc: Anthony Perard <anthony.perard@citrix.com>
Cc: Julien Grall <julien@xen.org>
Signed-off-by: Jiahui Cen <cenjiahui@huawei.com>
Signed-off-by: Yubo Miao <miaoyubo@huawei.com>
---
OvmfPkg/Library/PciHostBridgeLib/PciHostBridgeLib.inf | 1 +
OvmfPkg/Library/PciHostBridgeUtilityLib/PciHostBridgeUtilityLib.inf | 4 --
OvmfPkg/Include/Library/PciHostBridgeUtilityLib.h | 56 +++++++++--------
OvmfPkg/Library/PciHostBridgeLib/PciHostBridgeLib.c | 5 ++
OvmfPkg/Library/PciHostBridgeLib/XenSupport.c | 1 +
OvmfPkg/Library/PciHostBridgeUtilityLib/PciHostBridgeUtilityLib.c | 63 +++++++++++---------
6 files changed, 73 insertions(+), 57 deletions(-)
diff --git a/OvmfPkg/Library/PciHostBridgeLib/PciHostBridgeLib.inf b/OvmfPkg/Library/PciHostBridgeLib/PciHostBridgeLib.inf
index 7944f94b7743..72458262cb42 100644
--- a/OvmfPkg/Library/PciHostBridgeLib/PciHostBridgeLib.inf
+++ b/OvmfPkg/Library/PciHostBridgeLib/PciHostBridgeLib.inf
@@ -50,4 +50,5 @@ [Pcd]
gUefiOvmfPkgTokenSpaceGuid.PcdPciMmio32Size
gUefiOvmfPkgTokenSpaceGuid.PcdPciMmio64Base
gUefiOvmfPkgTokenSpaceGuid.PcdPciMmio64Size
+ gUefiOvmfPkgTokenSpaceGuid.PcdOvmfHostBridgePciDevId
gEfiMdeModulePkgTokenSpaceGuid.PcdPciDisableBusEnumeration
diff --git a/OvmfPkg/Library/PciHostBridgeUtilityLib/PciHostBridgeUtilityLib.inf b/OvmfPkg/Library/PciHostBridgeUtilityLib/PciHostBridgeUtilityLib.inf
index e3d0a3740952..4d6764b702f4 100644
--- a/OvmfPkg/Library/PciHostBridgeUtilityLib/PciHostBridgeUtilityLib.inf
+++ b/OvmfPkg/Library/PciHostBridgeUtilityLib/PciHostBridgeUtilityLib.inf
@@ -39,7 +39,3 @@ [LibraryClasses]
DebugLib
DevicePathLib
MemoryAllocationLib
- PcdLib
-
-[Pcd]
- gUefiOvmfPkgTokenSpaceGuid.PcdOvmfHostBridgePciDevId
diff --git a/OvmfPkg/Include/Library/PciHostBridgeUtilityLib.h b/OvmfPkg/Include/Library/PciHostBridgeUtilityLib.h
index 8a1ddc2f5e02..a44ad5034520 100644
--- a/OvmfPkg/Include/Library/PciHostBridgeUtilityLib.h
+++ b/OvmfPkg/Include/Library/PciHostBridgeUtilityLib.h
@@ -20,43 +20,49 @@
/**
Utility function to initialize a PCI_ROOT_BRIDGE structure.
- @param[in] Supports Supported attributes.
+ @param[in] Supports Supported attributes.
- @param[in] Attributes Initial attributes.
+ @param[in] Attributes Initial attributes.
- @param[in] AllocAttributes Allocation attributes.
+ @param[in] AllocAttributes Allocation attributes.
- @param[in] RootBusNumber The bus number to store in RootBus.
+ @param[in] DmaAbove4G DMA above 4GB memory.
- @param[in] MaxSubBusNumber The inclusive maximum bus number that can be
- assigned to any subordinate bus found behind any
- PCI bridge hanging off this root bus.
+ @param[in] NoExtendedConfigSpace No Extended Config Space.
- The caller is repsonsible for ensuring that
- RootBusNumber <= MaxSubBusNumber. If
- RootBusNumber equals MaxSubBusNumber, then the
- root bus has no room for subordinate buses.
+ @param[in] RootBusNumber The bus number to store in RootBus.
- @param[in] Io IO aperture.
+ @param[in] MaxSubBusNumber The inclusive maximum bus number that can
+ be assigned to any subordinate bus found
+ behind any PCI bridge hanging off this
+ root bus.
- @param[in] Mem MMIO aperture.
+ The caller is repsonsible for ensuring
+ that RootBusNumber <= MaxSubBusNumber. If
+ RootBusNumber equals MaxSubBusNumber, then
+ the root bus has no room for subordinate
+ buses.
- @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.
- @param[out] RootBus The PCI_ROOT_BRIDGE structure (allocated by the
- caller) that should be filled in by this
- function.
+ @param[in] PMem Prefetchable MMIO aperture.
- @retval EFI_SUCCESS Initialization successful. A device path
- consisting of an ACPI device path node, with
- UID = RootBusNumber, has been allocated and
- linked into RootBus.
+ @param[in] PMemAbove4G Prefetchable MMIO aperture above 4G.
- @retval EFI_OUT_OF_RESOURCES Memory allocation failed.
+ @param[out] RootBus The PCI_ROOT_BRIDGE structure (allocated
+ by the caller) that should be filled in by
+ this function.
+
+ @retval EFI_SUCCESS Initialization successful. A device path
+ consisting of an ACPI device path node,
+ with UID = RootBusNumber, has been
+ allocated and linked into RootBus.
+
+ @retval EFI_OUT_OF_RESOURCES Memory allocation failed.
**/
EFI_STATUS
EFIAPI
@@ -64,6 +70,8 @@ PciHostBridgeUtilityInitRootBridge (
IN UINT64 Supports,
IN UINT64 Attributes,
IN UINT64 AllocAttributes,
+ IN BOOLEAN DmaAbove4G,
+ IN BOOLEAN NoExtendedConfigSpace,
IN UINT8 RootBusNumber,
IN UINT8 MaxSubBusNumber,
IN PCI_ROOT_BRIDGE_APERTURE *Io,
diff --git a/OvmfPkg/Library/PciHostBridgeLib/PciHostBridgeLib.c b/OvmfPkg/Library/PciHostBridgeLib/PciHostBridgeLib.c
index 07fa98110e98..8758d7c12bf0 100644
--- a/OvmfPkg/Library/PciHostBridgeLib/PciHostBridgeLib.c
+++ b/OvmfPkg/Library/PciHostBridgeLib/PciHostBridgeLib.c
@@ -10,6 +10,7 @@
#include <PiDxe.h>
#include <IndustryStandard/Pci.h>
+#include <IndustryStandard/Q35MchIch9.h>
#include <Protocol/PciHostBridgeResourceAllocation.h>
#include <Protocol/PciRootBridgeIo.h>
@@ -151,6 +152,8 @@ PciHostBridgeGetRootBridges (
Attributes,
Attributes,
AllocationAttributes,
+ FALSE,
+ PcdGet16 (PcdOvmfHostBridgePciDevId) != INTEL_Q35_MCH_DEVICE_ID,
(UINT8) LastRootBridgeNumber,
(UINT8) (RootBridgeNumber - 1),
&Io,
@@ -176,6 +179,8 @@ PciHostBridgeGetRootBridges (
Attributes,
Attributes,
AllocationAttributes,
+ FALSE,
+ PcdGet16 (PcdOvmfHostBridgePciDevId) != INTEL_Q35_MCH_DEVICE_ID,
(UINT8) LastRootBridgeNumber,
PCI_MAX_BUS,
&Io,
diff --git a/OvmfPkg/Library/PciHostBridgeLib/XenSupport.c b/OvmfPkg/Library/PciHostBridgeLib/XenSupport.c
index 5dfeba0e6e23..9ef39f01821b 100644
--- a/OvmfPkg/Library/PciHostBridgeLib/XenSupport.c
+++ b/OvmfPkg/Library/PciHostBridgeLib/XenSupport.c
@@ -456,6 +456,7 @@ ScanForRootBridges (
ASSERT (RootBridges != NULL);
PciHostBridgeUtilityInitRootBridge (
Attributes, Attributes, 0,
+ FALSE, PcdGet16 (PcdOvmfHostBridgePciDevId) != INTEL_Q35_MCH_DEVICE_ID,
(UINT8) PrimaryBus, (UINT8) SubBus,
&Io, &Mem, &MemAbove4G, &mNonExistAperture, &mNonExistAperture,
&RootBridges[*NumberOfRootBridges]
diff --git a/OvmfPkg/Library/PciHostBridgeUtilityLib/PciHostBridgeUtilityLib.c b/OvmfPkg/Library/PciHostBridgeUtilityLib/PciHostBridgeUtilityLib.c
index 92b42566e5f8..bed2d87ea89c 100644
--- a/OvmfPkg/Library/PciHostBridgeUtilityLib/PciHostBridgeUtilityLib.c
+++ b/OvmfPkg/Library/PciHostBridgeUtilityLib/PciHostBridgeUtilityLib.c
@@ -11,12 +11,10 @@
**/
#include <IndustryStandard/Acpi10.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>
@@ -64,43 +62,49 @@ OVMF_PCI_ROOT_BRIDGE_DEVICE_PATH mRootBridgeDevicePathTemplate = {
/**
Utility function to initialize a PCI_ROOT_BRIDGE structure.
- @param[in] Supports Supported attributes.
+ @param[in] Supports Supported attributes.
- @param[in] Attributes Initial attributes.
+ @param[in] Attributes Initial attributes.
- @param[in] AllocAttributes Allocation attributes.
+ @param[in] AllocAttributes Allocation attributes.
- @param[in] RootBusNumber The bus number to store in RootBus.
+ @param[in] DmaAbove4G DMA above 4GB memory.
- @param[in] MaxSubBusNumber The inclusive maximum bus number that can be
- assigned to any subordinate bus found behind any
- PCI bridge hanging off this root bus.
+ @param[in] NoExtendedConfigSpace No Extended Config Space.
- The caller is repsonsible for ensuring that
- RootBusNumber <= MaxSubBusNumber. If
- RootBusNumber equals MaxSubBusNumber, then the
- root bus has no room for subordinate buses.
+ @param[in] RootBusNumber The bus number to store in RootBus.
- @param[in] Io IO aperture.
+ @param[in] MaxSubBusNumber The inclusive maximum bus number that can
+ be assigned to any subordinate bus found
+ behind any PCI bridge hanging off this
+ root bus.
- @param[in] Mem MMIO aperture.
+ The caller is repsonsible for ensuring
+ that RootBusNumber <= MaxSubBusNumber. If
+ RootBusNumber equals MaxSubBusNumber, then
+ the root bus has no room for subordinate
+ buses.
- @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.
- @param[out] RootBus The PCI_ROOT_BRIDGE structure (allocated by the
- caller) that should be filled in by this
- function.
+ @param[in] PMem Prefetchable MMIO aperture.
- @retval EFI_SUCCESS Initialization successful. A device path
- consisting of an ACPI device path node, with
- UID = RootBusNumber, has been allocated and
- linked into RootBus.
+ @param[in] PMemAbove4G Prefetchable MMIO aperture above 4G.
- @retval EFI_OUT_OF_RESOURCES Memory allocation failed.
+ @param[out] RootBus The PCI_ROOT_BRIDGE structure (allocated
+ by the caller) that should be filled in by
+ this function.
+
+ @retval EFI_SUCCESS Initialization successful. A device path
+ consisting of an ACPI device path node,
+ with UID = RootBusNumber, has been
+ allocated and linked into RootBus.
+
+ @retval EFI_OUT_OF_RESOURCES Memory allocation failed.
**/
EFI_STATUS
EFIAPI
@@ -108,6 +112,8 @@ PciHostBridgeUtilityInitRootBridge (
IN UINT64 Supports,
IN UINT64 Attributes,
IN UINT64 AllocAttributes,
+ IN BOOLEAN DmaAbove4G,
+ IN BOOLEAN NoExtendedConfigSpace,
IN UINT8 RootBusNumber,
IN UINT8 MaxSubBusNumber,
IN PCI_ROOT_BRIDGE_APERTURE *Io,
@@ -130,7 +136,7 @@ PciHostBridgeUtilityInitRootBridge (
RootBus->Supports = Supports;
RootBus->Attributes = Attributes;
- RootBus->DmaAbove4G = FALSE;
+ RootBus->DmaAbove4G = DmaAbove4G;
RootBus->AllocationAttributes = AllocAttributes;
RootBus->Bus.Base = RootBusNumber;
@@ -141,8 +147,7 @@ PciHostBridgeUtilityInitRootBridge (
CopyMem (&RootBus->PMem, PMem, sizeof (*PMem));
CopyMem (&RootBus->PMemAbove4G, PMemAbove4G, sizeof (*PMemAbove4G));
- RootBus->NoExtendedConfigSpace = (PcdGet16 (PcdOvmfHostBridgePciDevId) !=
- INTEL_Q35_MCH_DEVICE_ID);
+ RootBus->NoExtendedConfigSpace = NoExtendedConfigSpace;
DevicePath = AllocateCopyPool (sizeof mRootBridgeDevicePathTemplate,
&mRootBridgeDevicePathTemplate);
--
2.29.2
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-=-=-=-=-=-=-=-=-=-=-=-
On 01/19/21 02:12, Jiahui Cen via groups.io wrote:
> Extend parameter list of PciHostBridgeUtilityInitRootBridge() with
> DmaAbove4G and NoExtendedConfigSpace to prepare for sharing with
> ArmVirtPkg.
>
> BZ: https://bugzilla.tianocore.org/show_bug.cgi?id=3059
>
> Cc: Jordan Justen <jordan.l.justen@intel.com>
> Cc: Laszlo Ersek <lersek@redhat.com>
> Cc: Ard Biesheuvel <ard.biesheuvel@arm.com>
> Cc: Anthony Perard <anthony.perard@citrix.com>
> Cc: Julien Grall <julien@xen.org>
> Signed-off-by: Jiahui Cen <cenjiahui@huawei.com>
> Signed-off-by: Yubo Miao <miaoyubo@huawei.com>
> ---
> OvmfPkg/Library/PciHostBridgeLib/PciHostBridgeLib.inf | 1 +
> OvmfPkg/Library/PciHostBridgeUtilityLib/PciHostBridgeUtilityLib.inf | 4 --
> OvmfPkg/Include/Library/PciHostBridgeUtilityLib.h | 56 +++++++++--------
> OvmfPkg/Library/PciHostBridgeLib/PciHostBridgeLib.c | 5 ++
> OvmfPkg/Library/PciHostBridgeLib/XenSupport.c | 1 +
> OvmfPkg/Library/PciHostBridgeUtilityLib/PciHostBridgeUtilityLib.c | 63 +++++++++++---------
> 6 files changed, 73 insertions(+), 57 deletions(-)
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Thanks
Laszlo
>
> diff --git a/OvmfPkg/Library/PciHostBridgeLib/PciHostBridgeLib.inf b/OvmfPkg/Library/PciHostBridgeLib/PciHostBridgeLib.inf
> index 7944f94b7743..72458262cb42 100644
> --- a/OvmfPkg/Library/PciHostBridgeLib/PciHostBridgeLib.inf
> +++ b/OvmfPkg/Library/PciHostBridgeLib/PciHostBridgeLib.inf
> @@ -50,4 +50,5 @@ [Pcd]
> gUefiOvmfPkgTokenSpaceGuid.PcdPciMmio32Size
> gUefiOvmfPkgTokenSpaceGuid.PcdPciMmio64Base
> gUefiOvmfPkgTokenSpaceGuid.PcdPciMmio64Size
> + gUefiOvmfPkgTokenSpaceGuid.PcdOvmfHostBridgePciDevId
> gEfiMdeModulePkgTokenSpaceGuid.PcdPciDisableBusEnumeration
> diff --git a/OvmfPkg/Library/PciHostBridgeUtilityLib/PciHostBridgeUtilityLib.inf b/OvmfPkg/Library/PciHostBridgeUtilityLib/PciHostBridgeUtilityLib.inf
> index e3d0a3740952..4d6764b702f4 100644
> --- a/OvmfPkg/Library/PciHostBridgeUtilityLib/PciHostBridgeUtilityLib.inf
> +++ b/OvmfPkg/Library/PciHostBridgeUtilityLib/PciHostBridgeUtilityLib.inf
> @@ -39,7 +39,3 @@ [LibraryClasses]
> DebugLib
> DevicePathLib
> MemoryAllocationLib
> - PcdLib
> -
> -[Pcd]
> - gUefiOvmfPkgTokenSpaceGuid.PcdOvmfHostBridgePciDevId
> diff --git a/OvmfPkg/Include/Library/PciHostBridgeUtilityLib.h b/OvmfPkg/Include/Library/PciHostBridgeUtilityLib.h
> index 8a1ddc2f5e02..a44ad5034520 100644
> --- a/OvmfPkg/Include/Library/PciHostBridgeUtilityLib.h
> +++ b/OvmfPkg/Include/Library/PciHostBridgeUtilityLib.h
> @@ -20,43 +20,49 @@
> /**
> Utility function to initialize a PCI_ROOT_BRIDGE structure.
>
> - @param[in] Supports Supported attributes.
> + @param[in] Supports Supported attributes.
>
> - @param[in] Attributes Initial attributes.
> + @param[in] Attributes Initial attributes.
>
> - @param[in] AllocAttributes Allocation attributes.
> + @param[in] AllocAttributes Allocation attributes.
>
> - @param[in] RootBusNumber The bus number to store in RootBus.
> + @param[in] DmaAbove4G DMA above 4GB memory.
>
> - @param[in] MaxSubBusNumber The inclusive maximum bus number that can be
> - assigned to any subordinate bus found behind any
> - PCI bridge hanging off this root bus.
> + @param[in] NoExtendedConfigSpace No Extended Config Space.
>
> - The caller is repsonsible for ensuring that
> - RootBusNumber <= MaxSubBusNumber. If
> - RootBusNumber equals MaxSubBusNumber, then the
> - root bus has no room for subordinate buses.
> + @param[in] RootBusNumber The bus number to store in RootBus.
>
> - @param[in] Io IO aperture.
> + @param[in] MaxSubBusNumber The inclusive maximum bus number that can
> + be assigned to any subordinate bus found
> + behind any PCI bridge hanging off this
> + root bus.
>
> - @param[in] Mem MMIO aperture.
> + The caller is repsonsible for ensuring
> + that RootBusNumber <= MaxSubBusNumber. If
> + RootBusNumber equals MaxSubBusNumber, then
> + the root bus has no room for subordinate
> + buses.
>
> - @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.
>
> - @param[out] RootBus The PCI_ROOT_BRIDGE structure (allocated by the
> - caller) that should be filled in by this
> - function.
> + @param[in] PMem Prefetchable MMIO aperture.
>
> - @retval EFI_SUCCESS Initialization successful. A device path
> - consisting of an ACPI device path node, with
> - UID = RootBusNumber, has been allocated and
> - linked into RootBus.
> + @param[in] PMemAbove4G Prefetchable MMIO aperture above 4G.
>
> - @retval EFI_OUT_OF_RESOURCES Memory allocation failed.
> + @param[out] RootBus The PCI_ROOT_BRIDGE structure (allocated
> + by the caller) that should be filled in by
> + this function.
> +
> + @retval EFI_SUCCESS Initialization successful. A device path
> + consisting of an ACPI device path node,
> + with UID = RootBusNumber, has been
> + allocated and linked into RootBus.
> +
> + @retval EFI_OUT_OF_RESOURCES Memory allocation failed.
> **/
> EFI_STATUS
> EFIAPI
> @@ -64,6 +70,8 @@ PciHostBridgeUtilityInitRootBridge (
> IN UINT64 Supports,
> IN UINT64 Attributes,
> IN UINT64 AllocAttributes,
> + IN BOOLEAN DmaAbove4G,
> + IN BOOLEAN NoExtendedConfigSpace,
> IN UINT8 RootBusNumber,
> IN UINT8 MaxSubBusNumber,
> IN PCI_ROOT_BRIDGE_APERTURE *Io,
> diff --git a/OvmfPkg/Library/PciHostBridgeLib/PciHostBridgeLib.c b/OvmfPkg/Library/PciHostBridgeLib/PciHostBridgeLib.c
> index 07fa98110e98..8758d7c12bf0 100644
> --- a/OvmfPkg/Library/PciHostBridgeLib/PciHostBridgeLib.c
> +++ b/OvmfPkg/Library/PciHostBridgeLib/PciHostBridgeLib.c
> @@ -10,6 +10,7 @@
> #include <PiDxe.h>
>
> #include <IndustryStandard/Pci.h>
> +#include <IndustryStandard/Q35MchIch9.h>
>
> #include <Protocol/PciHostBridgeResourceAllocation.h>
> #include <Protocol/PciRootBridgeIo.h>
> @@ -151,6 +152,8 @@ PciHostBridgeGetRootBridges (
> Attributes,
> Attributes,
> AllocationAttributes,
> + FALSE,
> + PcdGet16 (PcdOvmfHostBridgePciDevId) != INTEL_Q35_MCH_DEVICE_ID,
> (UINT8) LastRootBridgeNumber,
> (UINT8) (RootBridgeNumber - 1),
> &Io,
> @@ -176,6 +179,8 @@ PciHostBridgeGetRootBridges (
> Attributes,
> Attributes,
> AllocationAttributes,
> + FALSE,
> + PcdGet16 (PcdOvmfHostBridgePciDevId) != INTEL_Q35_MCH_DEVICE_ID,
> (UINT8) LastRootBridgeNumber,
> PCI_MAX_BUS,
> &Io,
> diff --git a/OvmfPkg/Library/PciHostBridgeLib/XenSupport.c b/OvmfPkg/Library/PciHostBridgeLib/XenSupport.c
> index 5dfeba0e6e23..9ef39f01821b 100644
> --- a/OvmfPkg/Library/PciHostBridgeLib/XenSupport.c
> +++ b/OvmfPkg/Library/PciHostBridgeLib/XenSupport.c
> @@ -456,6 +456,7 @@ ScanForRootBridges (
> ASSERT (RootBridges != NULL);
> PciHostBridgeUtilityInitRootBridge (
> Attributes, Attributes, 0,
> + FALSE, PcdGet16 (PcdOvmfHostBridgePciDevId) != INTEL_Q35_MCH_DEVICE_ID,
> (UINT8) PrimaryBus, (UINT8) SubBus,
> &Io, &Mem, &MemAbove4G, &mNonExistAperture, &mNonExistAperture,
> &RootBridges[*NumberOfRootBridges]
> diff --git a/OvmfPkg/Library/PciHostBridgeUtilityLib/PciHostBridgeUtilityLib.c b/OvmfPkg/Library/PciHostBridgeUtilityLib/PciHostBridgeUtilityLib.c
> index 92b42566e5f8..bed2d87ea89c 100644
> --- a/OvmfPkg/Library/PciHostBridgeUtilityLib/PciHostBridgeUtilityLib.c
> +++ b/OvmfPkg/Library/PciHostBridgeUtilityLib/PciHostBridgeUtilityLib.c
> @@ -11,12 +11,10 @@
> **/
>
> #include <IndustryStandard/Acpi10.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>
>
>
> @@ -64,43 +62,49 @@ OVMF_PCI_ROOT_BRIDGE_DEVICE_PATH mRootBridgeDevicePathTemplate = {
> /**
> Utility function to initialize a PCI_ROOT_BRIDGE structure.
>
> - @param[in] Supports Supported attributes.
> + @param[in] Supports Supported attributes.
>
> - @param[in] Attributes Initial attributes.
> + @param[in] Attributes Initial attributes.
>
> - @param[in] AllocAttributes Allocation attributes.
> + @param[in] AllocAttributes Allocation attributes.
>
> - @param[in] RootBusNumber The bus number to store in RootBus.
> + @param[in] DmaAbove4G DMA above 4GB memory.
>
> - @param[in] MaxSubBusNumber The inclusive maximum bus number that can be
> - assigned to any subordinate bus found behind any
> - PCI bridge hanging off this root bus.
> + @param[in] NoExtendedConfigSpace No Extended Config Space.
>
> - The caller is repsonsible for ensuring that
> - RootBusNumber <= MaxSubBusNumber. If
> - RootBusNumber equals MaxSubBusNumber, then the
> - root bus has no room for subordinate buses.
> + @param[in] RootBusNumber The bus number to store in RootBus.
>
> - @param[in] Io IO aperture.
> + @param[in] MaxSubBusNumber The inclusive maximum bus number that can
> + be assigned to any subordinate bus found
> + behind any PCI bridge hanging off this
> + root bus.
>
> - @param[in] Mem MMIO aperture.
> + The caller is repsonsible for ensuring
> + that RootBusNumber <= MaxSubBusNumber. If
> + RootBusNumber equals MaxSubBusNumber, then
> + the root bus has no room for subordinate
> + buses.
>
> - @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.
>
> - @param[out] RootBus The PCI_ROOT_BRIDGE structure (allocated by the
> - caller) that should be filled in by this
> - function.
> + @param[in] PMem Prefetchable MMIO aperture.
>
> - @retval EFI_SUCCESS Initialization successful. A device path
> - consisting of an ACPI device path node, with
> - UID = RootBusNumber, has been allocated and
> - linked into RootBus.
> + @param[in] PMemAbove4G Prefetchable MMIO aperture above 4G.
>
> - @retval EFI_OUT_OF_RESOURCES Memory allocation failed.
> + @param[out] RootBus The PCI_ROOT_BRIDGE structure (allocated
> + by the caller) that should be filled in by
> + this function.
> +
> + @retval EFI_SUCCESS Initialization successful. A device path
> + consisting of an ACPI device path node,
> + with UID = RootBusNumber, has been
> + allocated and linked into RootBus.
> +
> + @retval EFI_OUT_OF_RESOURCES Memory allocation failed.
> **/
> EFI_STATUS
> EFIAPI
> @@ -108,6 +112,8 @@ PciHostBridgeUtilityInitRootBridge (
> IN UINT64 Supports,
> IN UINT64 Attributes,
> IN UINT64 AllocAttributes,
> + IN BOOLEAN DmaAbove4G,
> + IN BOOLEAN NoExtendedConfigSpace,
> IN UINT8 RootBusNumber,
> IN UINT8 MaxSubBusNumber,
> IN PCI_ROOT_BRIDGE_APERTURE *Io,
> @@ -130,7 +136,7 @@ PciHostBridgeUtilityInitRootBridge (
> RootBus->Supports = Supports;
> RootBus->Attributes = Attributes;
>
> - RootBus->DmaAbove4G = FALSE;
> + RootBus->DmaAbove4G = DmaAbove4G;
>
> RootBus->AllocationAttributes = AllocAttributes;
> RootBus->Bus.Base = RootBusNumber;
> @@ -141,8 +147,7 @@ PciHostBridgeUtilityInitRootBridge (
> CopyMem (&RootBus->PMem, PMem, sizeof (*PMem));
> CopyMem (&RootBus->PMemAbove4G, PMemAbove4G, sizeof (*PMemAbove4G));
>
> - RootBus->NoExtendedConfigSpace = (PcdGet16 (PcdOvmfHostBridgePciDevId) !=
> - INTEL_Q35_MCH_DEVICE_ID);
> + RootBus->NoExtendedConfigSpace = NoExtendedConfigSpace;
>
> DevicePath = AllocateCopyPool (sizeof mRootBridgeDevicePathTemplate,
> &mRootBridgeDevicePathTemplate);
>
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