[edk2-devel] [PATCH v4 4/9] OvmfPkg/PciHostBridgeUtilityLib: Extend parameter list of InitRootBridge
Jiahui Cen via groups.io
cenjiahui=huawei.com at groups.io
Tue Jan 12 09:45:44 UTC 2021
Extend parameter list of PciHostBridgeUtilityInitRootBridge() with
DmaAbove4G and NoExtendedConfigSpace to prepare for support of 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>
Cc: Anthony Perard <anthony.perard at citrix.com>
Cc: Julien Grall <julien at xen.org>
Signed-off-by: Jiahui Cen <cenjiahui at huawei.com>
Signed-off-by: Yubo Miao <miaoyubo at huawei.com>
---
OvmfPkg/Library/PciHostBridgeLib/PciHostBridgeLib.inf | 1 +
OvmfPkg/Library/PciHostBridgeUtilityLib/PciHostBridgeUtilityLib.inf | 3 -
OvmfPkg/Include/Library/PciHostBridgeUtilityLib.h | 56 ++++++++++--------
OvmfPkg/Library/PciHostBridgeLib/PciHostBridgeLib.c | 5 ++
OvmfPkg/Library/PciHostBridgeLib/XenSupport.c | 1 +
OvmfPkg/Library/PciHostBridgeUtilityLib/PciHostBridgeUtilityLib.c | 62 +++++++++++---------
6 files changed, 73 insertions(+), 55 deletions(-)
diff --git a/OvmfPkg/Library/PciHostBridgeLib/PciHostBridgeLib.inf b/OvmfPkg/Library/PciHostBridgeLib/PciHostBridgeLib.inf
index d09429d9f0fb..463c05c94b07 100644
--- a/OvmfPkg/Library/PciHostBridgeLib/PciHostBridgeLib.inf
+++ b/OvmfPkg/Library/PciHostBridgeLib/PciHostBridgeLib.inf
@@ -49,4 +49,5 @@ [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 32a10e99c3e0..4d6764b702f4 100644
--- a/OvmfPkg/Library/PciHostBridgeUtilityLib/PciHostBridgeUtilityLib.inf
+++ b/OvmfPkg/Library/PciHostBridgeUtilityLib/PciHostBridgeUtilityLib.inf
@@ -39,6 +39,3 @@ [LibraryClasses]
DebugLib
DevicePathLib
MemoryAllocationLib
-
-[Pcd]
- gUefiOvmfPkgTokenSpaceGuid.PcdOvmfHostBridgePciDevId
diff --git a/OvmfPkg/Include/Library/PciHostBridgeUtilityLib.h b/OvmfPkg/Include/Library/PciHostBridgeUtilityLib.h
index f02cec812a50..13c591641d7a 100644
--- a/OvmfPkg/Include/Library/PciHostBridgeUtilityLib.h
+++ b/OvmfPkg/Include/Library/PciHostBridgeUtilityLib.h
@@ -20,49 +20,57 @@
/**
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
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 f284244448bb..d9c057021598 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>
@@ -150,6 +151,8 @@ PciHostBridgeGetRootBridges (
Attributes,
Attributes,
AllocationAttributes,
+ FALSE,
+ PcdGet16 (PcdOvmfHostBridgePciDevId) != INTEL_Q35_MCH_DEVICE_ID,
(UINT8) LastRootBridgeNumber,
(UINT8) (RootBridgeNumber - 1),
&Io,
@@ -175,6 +178,8 @@ 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 4bd27211ec37..252e30fb06d2 100644
--- a/OvmfPkg/Library/PciHostBridgeLib/XenSupport.c
+++ b/OvmfPkg/Library/PciHostBridgeLib/XenSupport.c
@@ -455,6 +455,7 @@ 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 e3db4b766181..9101aedc8888 100644
--- a/OvmfPkg/Library/PciHostBridgeUtilityLib/PciHostBridgeUtilityLib.c
+++ b/OvmfPkg/Library/PciHostBridgeUtilityLib/PciHostBridgeUtilityLib.c
@@ -11,7 +11,6 @@
**/
#include <IndustryStandard/Acpi10.h>
-#include <IndustryStandard/Q35MchIch9.h>
#include <Library/BaseMemoryLib.h>
#include <Library/DebugLib.h>
#include <Library/DevicePathLib.h>
@@ -63,49 +62,57 @@ PCI_ROOT_BRIDGE_DEVICE_PATH mRootBridgeDevicePath = {
/**
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
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,
@@ -128,7 +135,7 @@ PciHostBridgeUtilityInitRootBridge (
RootBus->Supports = Supports;
RootBus->Attributes = Attributes;
- RootBus->DmaAbove4G = FALSE;
+ RootBus->DmaAbove4G = DmaAbove4G;
RootBus->AllocationAttributes = AllocAttributes;
RootBus->Bus.Base = RootBusNumber;
@@ -139,8 +146,7 @@ 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 mRootBridgeDevicePath,
&mRootBridgeDevicePath);
--
2.29.2
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