Select without SMMU iort while SMMU item is disable, Select with SMMU iort while SMMU item is enable.
Contributed-under: TianoCore Contribution Agreement 1.1 Signed-off-by: Ming Huang ming.huang@linaro.org --- Silicon/Hisilicon/Drivers/HisiAcpiPlatformDxe/UpdateAcpiTable.c | 88 ++++++++++++++++++++ 1 file changed, 88 insertions(+)
diff --git a/Silicon/Hisilicon/Drivers/HisiAcpiPlatformDxe/UpdateAcpiTable.c b/Silicon/Hisilicon/Drivers/HisiAcpiPlatformDxe/UpdateAcpiTable.c index 32878ca4f9..e0c29e0f57 100644 --- a/Silicon/Hisilicon/Drivers/HisiAcpiPlatformDxe/UpdateAcpiTable.c +++ b/Silicon/Hisilicon/Drivers/HisiAcpiPlatformDxe/UpdateAcpiTable.c @@ -24,6 +24,90 @@
#define CORECOUNT(X) ((X) * CORE_NUM_PER_SOCKET)
+#define FIELD_IORT_NODE_OFFSET 40 + +typedef enum { + NodeTypeIts = 0, + NodeTypeNameComponent, + NodeTypePciRC, + NodeTypeSmmuV1, + NodeTypeSmmuV3, + NodeTypePMCG +} IORT_NODE_TYPE; + +#pragma pack(1) +typedef struct { + UINT8 Type; + UINT16 Length; + UINT8 Revision; + UINT32 Reserved; + UINT32 IdMapNumber; + UINT32 IdArrayOffset; +} IORT_NODE_HEAD; +#pragma pack() + +BOOLEAN +IsIortWithSmmu ( + IN EFI_ACPI_DESCRIPTION_HEADER *TableHeader + ) +{ + UINT32 *NodeOffset; + UINT32 NextOffset; + IORT_NODE_HEAD *Node; + + NodeOffset = (UINT32 *)((UINT8 *)TableHeader + FIELD_IORT_NODE_OFFSET); + NextOffset = *NodeOffset; + + while (NextOffset < TableHeader->Length) { + Node = (IORT_NODE_HEAD *)((UINT8 *)TableHeader + NextOffset); + NextOffset += Node->Length; + + if ((Node->Type == NodeTypeSmmuV1) || (Node->Type == NodeTypeSmmuV3)) { + return TRUE; + } + } + + return FALSE; +} + +EFI_STATUS +SelectIort ( + IN EFI_ACPI_DESCRIPTION_HEADER *TableHeader + ) +{ + EFI_STATUS Status; + UINTN Size; + OEM_CONFIG_DATA Configuration; + + Configuration.EnableSmmu = 0; + Size = sizeof (OEM_CONFIG_DATA); + Status = gRT->GetVariable ( + OEM_CONFIG_NAME, + &gOemConfigGuid, + NULL, + &Size, + &Configuration + ); + if (EFI_ERROR (Status)) { + DEBUG ((DEBUG_ERROR, "Get OemConfig variable (%r).\n", Status)); + } + + Status = EFI_SUCCESS; + if (IsIortWithSmmu (TableHeader)) { + if (!Configuration.EnableSmmu) { + Status = EFI_ABORTED; + } + } else { + if (Configuration.EnableSmmu) { + Status = EFI_ABORTED; + } + } + DEBUG ((DEBUG_INFO, "SmmuEnable=%x, return %r for Iort table.\n", + Configuration.EnableSmmu, Status)); + + return Status; +} + STATIC VOID RemoveUnusedMemoryNode ( @@ -151,6 +235,10 @@ UpdateAcpiTable ( case EFI_ACPI_6_0_SYSTEM_LOCALITY_INFORMATION_TABLE_SIGNATURE: Status = UpdateSlit (TableHeader); break; + + case EFI_ACPI_6_2_IO_REMAPPING_TABLE_SIGNATURE: + Status = SelectIort (TableHeader); + break; case EFI_ACPI_6_2_SERIAL_PORT_CONSOLE_REDIRECTION_TABLE_SIGNATURE: Status = IsNeedSpcr (TableHeader); break;