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From: Thomas Abraham <thomas.abraham@arm.com>
To: edk2-devel@lists.01.org
Cc: ard.biesheuvel@linaro.org, leif.lindholm@linaro.org
Subject: [PATCH edk2-platforms v5 8/9] Platform/ARM/Sgi: implement PciHostBridgeLib support
Date: Wed, 23 May 2018 09:59:35 +0530	[thread overview]
Message-ID: <1527049776-27425-9-git-send-email-thomas.abraham@arm.com> (raw)
In-Reply-To: <1527049776-27425-1-git-send-email-thomas.abraham@arm.com>

SGI platforms include a PCIe root complex to which a AHCI controller
is attached as an endpoint. So implement the PciHostBridgeLib glue
layer and enable support for PCIe and AHCI controllers.

Change-Id: I11e808a8eeb550b0147dc5bbb4615d805db7f24a
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Thomas Abraham <thomas.abraham@arm.com>
---
 .../ARM/SgiPkg/AcpiTables/Sgi575/AcpiTables.inf    |   4 +
 .../Library/PciHostBridgeLib/PciHostBridgeLib.c    | 188 +++++++++++++++++++++
 .../Library/PciHostBridgeLib/PciHostBridgeLib.inf  |  63 +++++++
 .../ARM/SgiPkg/Library/PlatformLib/PlatformLib.inf |   8 +
 .../SgiPkg/Library/PlatformLib/PlatformLibMem.c    |  10 +-
 Platform/ARM/SgiPkg/SgiPlatform.dsc                |  48 ++++++
 Platform/ARM/SgiPkg/SgiPlatform.fdf                |  20 +++
 7 files changed, 340 insertions(+), 1 deletion(-)
 create mode 100644 Platform/ARM/SgiPkg/Library/PciHostBridgeLib/PciHostBridgeLib.c
 create mode 100644 Platform/ARM/SgiPkg/Library/PciHostBridgeLib/PciHostBridgeLib.inf

diff --git a/Platform/ARM/SgiPkg/AcpiTables/Sgi575/AcpiTables.inf b/Platform/ARM/SgiPkg/AcpiTables/Sgi575/AcpiTables.inf
index ec47f94..3694de9 100644
--- a/Platform/ARM/SgiPkg/AcpiTables/Sgi575/AcpiTables.inf
+++ b/Platform/ARM/SgiPkg/AcpiTables/Sgi575/AcpiTables.inf
@@ -49,3 +49,7 @@
   gArmTokenSpaceGuid.PcdGicRedistributorsBase
   gArmTokenSpaceGuid.PcdGenericWatchdogControlBase
   gArmTokenSpaceGuid.PcdGenericWatchdogRefreshBase
+  gArmTokenSpaceGuid.PcdPciBusMin
+  gArmTokenSpaceGuid.PcdPciBusMax
+
+  gEfiMdePkgTokenSpaceGuid.PcdPciExpressBaseAddress
diff --git a/Platform/ARM/SgiPkg/Library/PciHostBridgeLib/PciHostBridgeLib.c b/Platform/ARM/SgiPkg/Library/PciHostBridgeLib/PciHostBridgeLib.c
new file mode 100644
index 0000000..ddda194
--- /dev/null
+++ b/Platform/ARM/SgiPkg/Library/PciHostBridgeLib/PciHostBridgeLib.c
@@ -0,0 +1,188 @@
+/** @file
+*  PCI Host Bridge Library instance for ARM SGI platforms
+*
+*  Copyright (c) 2018, ARM Limited. All rights reserved.
+*
+*  This program and the accompanying materials are licensed and made available
+*  under the terms and conditions of the BSD License which accompanies this
+*  distribution.  The full text of the license may be found at
+*  http://opensource.org/licenses/bsd-license.php
+*
+*  THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+*  WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+*
+**/
+
+#include <PiDxe.h>
+#include <Library/DebugLib.h>
+#include <Library/DevicePathLib.h>
+#include <Library/MemoryAllocationLib.h>
+#include <Library/PcdLib.h>
+#include <Library/PciHostBridgeLib.h>
+#include <Protocol/PciHostBridgeResourceAllocation.h>
+#include <Protocol/PciRootBridgeIo.h>
+
+GLOBAL_REMOVE_IF_UNREFERENCED
+STATIC CHAR16 CONST * CONST mPciHostBridgeLibAcpiAddressSpaceTypeStr[] = {
+  L"Mem", L"I/O", L"Bus"
+};
+
+#pragma pack(1)
+typedef struct {
+  ACPI_HID_DEVICE_PATH     AcpiDevicePath;
+  EFI_DEVICE_PATH_PROTOCOL EndDevicePath;
+} EFI_PCI_ROOT_BRIDGE_DEVICE_PATH;
+#pragma pack ()
+
+STATIC EFI_PCI_ROOT_BRIDGE_DEVICE_PATH mEfiPciRootBridgeDevicePath = {
+  {
+    {
+      ACPI_DEVICE_PATH,
+      ACPI_DP,
+      {
+        (UINT8) (sizeof (ACPI_HID_DEVICE_PATH)),
+        (UINT8) ((sizeof (ACPI_HID_DEVICE_PATH)) >> 8)
+      }
+    },
+    EISA_PNP_ID (0x0A08), // PCIe
+    0
+  }, {
+    END_DEVICE_PATH_TYPE,
+    END_ENTIRE_DEVICE_PATH_SUBTYPE,
+    {
+      END_DEVICE_PATH_LENGTH,
+      0
+    }
+  }
+};
+
+STATIC PCI_ROOT_BRIDGE mPciRootBridge[] = {
+  {
+    0,                                              // Segment
+    0,                                              // Supports
+    0,                                              // Attributes
+    TRUE,                                           // DmaAbove4G
+    FALSE,                                          // NoExtendedConfigSpace
+    FALSE,                                          // ResourceAssigned
+    EFI_PCI_HOST_BRIDGE_COMBINE_MEM_PMEM |          // AllocationAttributes
+    EFI_PCI_HOST_BRIDGE_MEM64_DECODE,
+    {
+      // Bus
+      FixedPcdGet32 (PcdPciBusMin),
+      FixedPcdGet32 (PcdPciBusMax)
+    }, {
+      // Io
+      FixedPcdGet64 (PcdPciIoBase),
+      FixedPcdGet64 (PcdPciIoBase) + FixedPcdGet64 (PcdPciIoSize) - 1
+    }, {
+      // Mem
+      FixedPcdGet32 (PcdPciMmio32Base),
+      FixedPcdGet32 (PcdPciMmio32Base) + FixedPcdGet32 (PcdPciMmio32Size) - 1
+    }, {
+      // MemAbove4G
+      FixedPcdGet64 (PcdPciMmio64Base),
+      FixedPcdGet64 (PcdPciMmio64Base) + FixedPcdGet64 (PcdPciMmio64Size) - 1
+    }, {
+      // PMem
+      MAX_UINT64,
+      0
+    }, {
+      // PMemAbove4G
+      MAX_UINT64,
+      0
+    },
+    (EFI_DEVICE_PATH_PROTOCOL *)&mEfiPciRootBridgeDevicePath
+  },
+};
+
+/**
+  Return all the root bridge instances in an array.
+
+  @param Count  Return the count of root bridge instances.
+
+  @return All the root bridge instances in an array.
+          The array should be passed into PciHostBridgeFreeRootBridges()
+          when it's not used.
+**/
+PCI_ROOT_BRIDGE *
+EFIAPI
+PciHostBridgeGetRootBridges (
+  UINTN *Count
+  )
+{
+  *Count = ARRAY_SIZE (mPciRootBridge);
+  return mPciRootBridge;
+}
+
+/**
+  Free the root bridge instances array returned from PciHostBridgeGetRootBridges().
+
+  @param Bridges The root bridge instances array.
+  @param Count   The count of the array.
+**/
+VOID
+EFIAPI
+PciHostBridgeFreeRootBridges (
+  PCI_ROOT_BRIDGE *Bridges,
+  UINTN           Count
+  )
+{
+}
+
+/**
+  Inform the platform that the resource conflict happens.
+
+  @param HostBridgeHandle Handle of the Host Bridge.
+  @param Configuration    Pointer to PCI I/O and PCI memory resource
+                          descriptors. The Configuration contains the resources
+                          for all the root bridges. The resource for each root
+                          bridge is terminated with END descriptor and an
+                          additional END is appended indicating the end of the
+                          entire resources. The resource descriptor field
+                          values follow the description in
+                          EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL
+                          .SubmitResources().
+**/
+VOID
+EFIAPI
+PciHostBridgeResourceConflict (
+  EFI_HANDLE                        HostBridgeHandle,
+  VOID                              *Configuration
+  )
+{
+  EFI_ACPI_ADDRESS_SPACE_DESCRIPTOR *Descriptor;
+  UINTN                             RootBridgeIndex;
+  DEBUG ((DEBUG_ERROR, "PciHostBridge: Resource conflict happens!\n"));
+
+  RootBridgeIndex = 0;
+  Descriptor = (EFI_ACPI_ADDRESS_SPACE_DESCRIPTOR *) Configuration;
+  while (Descriptor->Desc == ACPI_ADDRESS_SPACE_DESCRIPTOR) {
+    DEBUG ((DEBUG_ERROR, "RootBridge[%d]:\n", RootBridgeIndex++));
+    for (; Descriptor->Desc == ACPI_ADDRESS_SPACE_DESCRIPTOR; Descriptor++) {
+      ASSERT (Descriptor->ResType <
+              (sizeof (mPciHostBridgeLibAcpiAddressSpaceTypeStr) /
+               sizeof (mPciHostBridgeLibAcpiAddressSpaceTypeStr[0])
+               )
+              );
+      DEBUG ((DEBUG_ERROR, " %s: Length/Alignment = 0x%lx / 0x%lx\n",
+              mPciHostBridgeLibAcpiAddressSpaceTypeStr[Descriptor->ResType],
+              Descriptor->AddrLen, Descriptor->AddrRangeMax
+              ));
+      if (Descriptor->ResType == ACPI_ADDRESS_SPACE_TYPE_MEM) {
+        DEBUG ((DEBUG_ERROR, "     Granularity/SpecificFlag = %ld / %02x%s\n",
+                Descriptor->AddrSpaceGranularity, Descriptor->SpecificFlag,
+                ((Descriptor->SpecificFlag &
+                  EFI_ACPI_MEMORY_RESOURCE_SPECIFIC_FLAG_CACHEABLE_PREFETCHABLE
+                  ) != 0) ? L" (Prefetchable)" : L""
+                ));
+      }
+    }
+    //
+    // Skip the END descriptor for root bridge
+    //
+    ASSERT (Descriptor->Desc == ACPI_END_TAG_DESCRIPTOR);
+    Descriptor = (EFI_ACPI_ADDRESS_SPACE_DESCRIPTOR *)(
+                   (EFI_ACPI_END_TAG_DESCRIPTOR *)Descriptor + 1
+                   );
+  }
+}
diff --git a/Platform/ARM/SgiPkg/Library/PciHostBridgeLib/PciHostBridgeLib.inf b/Platform/ARM/SgiPkg/Library/PciHostBridgeLib/PciHostBridgeLib.inf
new file mode 100644
index 0000000..16c2295
--- /dev/null
+++ b/Platform/ARM/SgiPkg/Library/PciHostBridgeLib/PciHostBridgeLib.inf
@@ -0,0 +1,63 @@
+## @file
+#  PCI Host Bridge Library instance for ARM SGI platforms.
+#
+#  Copyright (c) 2016, Intel Corporation. All rights reserved.
+#  Copyright (c) 2017, ARM Limited. All rights reserved.
+#
+#  This program and the accompanying materials are licensed and made available
+#  under the terms and conditions of the BSD License which accompanies this
+#  distribution. The full text of the license may be found at
+#  http://opensource.org/licenses/bsd-license.php
+#  THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR
+#  IMPLIED.
+#
+##
+
+[Defines]
+  INF_VERSION                    = 0x00010005
+  BASE_NAME                      = PciHostBridgeLib
+  FILE_GUID                      = 6879CEAD-DC94-42EB-895C-096D36B8083C
+  MODULE_TYPE                    = DXE_DRIVER
+  VERSION_STRING                 = 1.0
+  LIBRARY_CLASS                  = PciHostBridgeLib|DXE_DRIVER
+
+#
+# The following information is for reference only and not required by the build
+# tools.
+#
+#  VALID_ARCHITECTURES           = AARCH64 ARM
+#
+
+[Sources]
+  PciHostBridgeLib.c
+
+[Packages]
+  MdePkg/MdePkg.dec
+  MdeModulePkg/MdeModulePkg.dec
+  ArmPkg/ArmPkg.dec
+
+[LibraryClasses]
+  BaseLib
+  DebugLib
+  DevicePathLib
+  IoLib
+  MemoryAllocationLib
+  UefiBootServicesTableLib
+
+[FixedPcd]
+  gArmTokenSpaceGuid.PcdPciBusMin
+  gArmTokenSpaceGuid.PcdPciBusMax
+  gArmTokenSpaceGuid.PcdPciIoBase
+  gArmTokenSpaceGuid.PcdPciIoSize
+  gArmTokenSpaceGuid.PcdPciMmio32Base
+  gArmTokenSpaceGuid.PcdPciMmio32Size
+  gArmTokenSpaceGuid.PcdPciMmio32Translation
+  gArmTokenSpaceGuid.PcdPciMmio64Base
+  gArmTokenSpaceGuid.PcdPciMmio64Size
+
+[Protocols]
+  gEfiCpuIo2ProtocolGuid          ## CONSUMES
+
+[Depex]
+  gEfiCpuIo2ProtocolGuid
diff --git a/Platform/ARM/SgiPkg/Library/PlatformLib/PlatformLib.inf b/Platform/ARM/SgiPkg/Library/PlatformLib/PlatformLib.inf
index 853f56e..42e14d5 100644
--- a/Platform/ARM/SgiPkg/Library/PlatformLib/PlatformLib.inf
+++ b/Platform/ARM/SgiPkg/Library/PlatformLib/PlatformLib.inf
@@ -51,6 +51,14 @@
   gArmTokenSpaceGuid.PcdFvBaseAddress
   gArmTokenSpaceGuid.PcdArmPrimaryCore
   gArmTokenSpaceGuid.PcdArmPrimaryCoreMask
+  gArmTokenSpaceGuid.PcdPciBusMin
+  gArmTokenSpaceGuid.PcdPciBusMax
+  gArmTokenSpaceGuid.PcdPciMmio32Base
+  gArmTokenSpaceGuid.PcdPciMmio32Size
+  gArmTokenSpaceGuid.PcdPciMmio64Base
+  gArmTokenSpaceGuid.PcdPciMmio64Size
+
+  gEfiMdePkgTokenSpaceGuid.PcdPciExpressBaseAddress
 
 [Guids]
   gEfiHobListGuid          ## CONSUMES  ## SystemTable
diff --git a/Platform/ARM/SgiPkg/Library/PlatformLib/PlatformLibMem.c b/Platform/ARM/SgiPkg/Library/PlatformLib/PlatformLibMem.c
index 166f914..03c206b 100644
--- a/Platform/ARM/SgiPkg/Library/PlatformLib/PlatformLibMem.c
+++ b/Platform/ARM/SgiPkg/Library/PlatformLib/PlatformLibMem.c
@@ -22,7 +22,7 @@
 #include <SgiPlatform.h>
 
 // Total number of descriptors, including the final "end-of-table" descriptor.
-#define MAX_VIRTUAL_MEMORY_MAP_DESCRIPTORS  9
+#define MAX_VIRTUAL_MEMORY_MAP_DESCRIPTORS  10
 
 /**
   Returns the Virtual Memory Map of the platform.
@@ -100,6 +100,14 @@ ArmPlatformGetVirtualMemoryMap (
   VirtualMemoryTable[Index].Length          = PcdGet64 (PcdSystemMemorySize);
   VirtualMemoryTable[Index].Attributes      = ARM_MEMORY_REGION_ATTRIBUTE_WRITE_BACK;
 
+  // PCI Configuration Space
+  VirtualMemoryTable[++Index].PhysicalBase  = PcdGet64 (PcdPciExpressBaseAddress);
+  VirtualMemoryTable[Index].VirtualBase     = PcdGet64 (PcdPciExpressBaseAddress);
+  VirtualMemoryTable[Index].Length          = (FixedPcdGet32 (PcdPciBusMax) -
+                                               FixedPcdGet32 (PcdPciBusMin) + 1) *
+                                               SIZE_1MB;
+  VirtualMemoryTable[Index].Attributes      = ARM_MEMORY_REGION_ATTRIBUTE_DEVICE;
+
   // End of Table
   VirtualMemoryTable[++Index].PhysicalBase  = 0;
   VirtualMemoryTable[Index].VirtualBase     = 0;
diff --git a/Platform/ARM/SgiPkg/SgiPlatform.dsc b/Platform/ARM/SgiPkg/SgiPlatform.dsc
index b20090b..4ac94ce 100644
--- a/Platform/ARM/SgiPkg/SgiPlatform.dsc
+++ b/Platform/ARM/SgiPkg/SgiPlatform.dsc
@@ -76,6 +76,10 @@
 
 [LibraryClasses.common.DXE_DRIVER]
   FdtLib|EmbeddedPkg/Library/FdtLib/FdtLib.inf
+  PciHostBridgeLib|Platform/ARM/SgiPkg/Library/PciHostBridgeLib/PciHostBridgeLib.inf
+  PciSegmentLib|MdePkg/Library/BasePciSegmentLibPci/BasePciSegmentLibPci.inf
+  PciLib|MdePkg/Library/BasePciLibPciExpress/BasePciLibPciExpress.inf
+  PciExpressLib|MdePkg/Library/BasePciExpressLib/BasePciExpressLib.inf
 
 [LibraryClasses.common.DXE_RUNTIME_DRIVER]
   BaseMemoryLib|MdePkg/Library/BaseMemoryLib/BaseMemoryLib.inf
@@ -120,6 +124,24 @@
   gArmTokenSpaceGuid.PcdGicDistributorBase|0x30000000
   gArmTokenSpaceGuid.PcdGicRedistributorsBase|0x300C0000
 
+  #
+  # PCIe
+  #
+  gArmTokenSpaceGuid.PcdPciBusMin|0
+  gArmTokenSpaceGuid.PcdPciBusMax|255
+  gArmTokenSpaceGuid.PcdPciIoBase|0x0
+  gArmTokenSpaceGuid.PcdPciIoSize|0x00800000
+  gArmTokenSpaceGuid.PcdPciIoTranslation|0x77800000
+  gArmTokenSpaceGuid.PcdPciMmio32Base|0x70000000
+  gArmTokenSpaceGuid.PcdPciMmio32Size|0x07800000
+  gArmTokenSpaceGuid.PcdPciMmio32Translation|0x0
+  gArmTokenSpaceGuid.PcdPciMmio64Base|0x500000000
+  gArmTokenSpaceGuid.PcdPciMmio64Size|0x300000000
+  gArmTokenSpaceGuid.PcdPciMmio64Translation|0x0
+  gEfiMdePkgTokenSpaceGuid.PcdPciExpressBaseAddress|0x60000000
+  gEmbeddedTokenSpaceGuid.PcdPrePiCpuIoSize|24
+  gEmbeddedTokenSpaceGuid.PcdPrePiCpuMemorySize|40
+
   ## PL011 - Serial Terminal
   gEfiMdeModulePkgTokenSpaceGuid.PcdSerialRegisterBase|0x7FF80000
   gEfiMdePkgTokenSpaceGuid.PcdUartDefaultBaudRate|115200
@@ -236,6 +258,7 @@
   MdeModulePkg/Universal/Disk/DiskIoDxe/DiskIoDxe.inf
   MdeModulePkg/Universal/Disk/PartitionDxe/PartitionDxe.inf
   MdeModulePkg/Universal/Disk/UnicodeCollation/EnglishDxe/EnglishDxe.inf
+  FatPkg/EnhancedFatDxe/Fat.inf
 
   #
   # Bds
@@ -254,3 +277,28 @@
 
   # SMSC LAN 91C111
   EmbeddedPkg/Drivers/Lan91xDxe/Lan91xDxe.inf
+
+  #
+  # Required by PCI
+  #
+  ArmPkg/Drivers/ArmPciCpuIo2Dxe/ArmPciCpuIo2Dxe.inf
+
+  #
+  # PCI Support
+  #
+  MdeModulePkg/Bus/Pci/PciBusDxe/PciBusDxe.inf
+  MdeModulePkg/Bus/Pci/PciHostBridgeDxe/PciHostBridgeDxe.inf {
+    <PcdsFixedAtBuild>
+      gEfiMdePkgTokenSpaceGuid.PcdDebugPrintErrorLevel|0x8010004F
+  }
+
+  #
+  # AHCI Support
+  #
+  MdeModulePkg/Bus/Ata/AtaAtapiPassThru/AtaAtapiPassThru.inf
+  MdeModulePkg/Bus/Ata/AtaBusDxe/AtaBusDxe.inf
+
+  #
+  # SATA Controller
+  #
+  MdeModulePkg/Bus/Pci/SataControllerDxe/SataControllerDxe.inf
diff --git a/Platform/ARM/SgiPkg/SgiPlatform.fdf b/Platform/ARM/SgiPkg/SgiPlatform.fdf
index 6f6e6aa..17cdf48 100644
--- a/Platform/ARM/SgiPkg/SgiPlatform.fdf
+++ b/Platform/ARM/SgiPkg/SgiPlatform.fdf
@@ -108,6 +108,26 @@ READ_LOCK_STATUS   = TRUE
   INF RuleOverride=ACPITABLE Platform/ARM/SgiPkg/AcpiTables/Sgi575/AcpiTables.inf
   INF MdeModulePkg/Universal/HiiDatabaseDxe/HiiDatabaseDxe.inf
 
+  # Required by PCI
+  INF ArmPkg/Drivers/ArmPciCpuIo2Dxe/ArmPciCpuIo2Dxe.inf
+
+  #
+  # PCI Support
+  #
+  INF MdeModulePkg/Bus/Pci/PciBusDxe/PciBusDxe.inf
+  INF MdeModulePkg/Bus/Pci/PciHostBridgeDxe/PciHostBridgeDxe.inf
+
+  #
+  # AHCI Support
+  #
+  INF MdeModulePkg/Bus/Ata/AtaAtapiPassThru/AtaAtapiPassThru.inf
+  INF MdeModulePkg/Bus/Ata/AtaBusDxe/AtaBusDxe.inf
+
+  #
+  # SATA Controller
+  #
+  INF MdeModulePkg/Bus/Pci/SataControllerDxe/SataControllerDxe.inf
+
   #
   # Multiple Console IO support
   #
-- 
2.7.4



  parent reply	other threads:[~2018-05-23  4:29 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-05-23  4:29 [PATCH edk2-platforms v5 0/9] Platform/ARM/Sgi: Add Arm's SGI platform support Thomas Abraham
2018-05-23  4:29 ` [PATCH edk2-platforms v5 1/9] Platform/ARM/Sgi: Add Platform library implementation Thomas Abraham
2018-05-23  4:29 ` [PATCH edk2-platforms v5 2/9] Platform/ARM/Sgi: add NOR flash platform " Thomas Abraham
2018-05-23  4:29 ` [PATCH edk2-platforms v5 3/9] Platform/ARM/Sgi: add initial platform dxe driver implementation Thomas Abraham
2018-05-23  4:29 ` [PATCH edk2-platforms v5 4/9] Platform/ARM/Sgi: add support for virtio block device Thomas Abraham
2018-05-23  4:29 ` [PATCH edk2-platforms v5 5/9] Platform/ARM/Sgi: add the initial set of acpi tables Thomas Abraham
2018-05-23  4:29 ` [PATCH edk2-platforms v5 6/9] Platform/ARM/Sgi: add initial support for ARM SGI platform Thomas Abraham
2018-05-23  4:29 ` [PATCH edk2-platforms v5 7/9] Platform/ARM/Sgi: add support for smsc91x ethernet controller Thomas Abraham
2018-05-23  4:29 ` Thomas Abraham [this message]
2018-05-23  4:45   ` [PATCH edk2-platforms v5 8/9] Platform/ARM/Sgi: implement PciHostBridgeLib support Ard Biesheuvel
2018-05-23  4:29 ` [PATCH edk2-platforms v5 9/9] Platform/ARM/Sgi: Add Ssdt, Iort and Mcfg tables Thomas Abraham
2018-05-23  4:43   ` Ard Biesheuvel
2018-05-23  5:09     ` Thomas Abraham
2018-05-23  6:11       ` Ard Biesheuvel

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