mirror of https://github.com/acidanthera/audk.git
100 lines
3.1 KiB
C
100 lines
3.1 KiB
C
/** @file
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Partition information description as specfied in the FF-A v1.2 specification.
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Copyright (c) 2024, Arm Limited. All rights reserved.
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SPDX-License-Identifier: BSD-2-Clause-Patent
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@par Glossary:
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- FF-A - Firmware Framework for Arm A-profile
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- ST - Start idx and Tag
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- IM - Information Metadata
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- PART - Partition
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- PROP - Property
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- PE - Processing Element
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- INDEP - Independent
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- AUX - Auxiliary
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@par Reference(s):
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- FF-A Version 1.2 [https://developer.arm.com/documentation/den0077/latest]
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**/
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#ifndef ARM_FFA_PART_INFO_H_
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#define ARM_FFA_PART_INFO_H_
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/** Partition info flags used in FFA_PARTITION_INFO_GET
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* See FF-A spec chapter 13.8 FFA_PARTITION_INFO_GET
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*/
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#define FFA_PART_INFO_FLAG_TYPE_SHIFT 0
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#define FFA_PART_INFO_FLAG_TYPE_MASK 1
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#define FFA_PART_INFO_FLAG_TYPE_COUNT 1
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#define FFA_PART_INFO_FLAG_TYPE_DESC 0
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#define FFA_PART_INFO_IDX_MASK 0xffff
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#define FFA_PART_INFO_START_TAG_MASK 0xffff
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/** macro used in FFA_PARTITION_INFO_GET_REGS request
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* See FF-A spec chapter 13.9 FFA_PARTITION_INFO_GET_REGS
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*/
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#define FFA_PART_INFO_START_IDX_SHIFT 0
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#define FFA_PART_INFO_START_TAG_SHIFT 16
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/** macro used in FFA_PARTITION_INFO_GET_REGS response
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* See FF-A spec chapter 13.9 FFA_PARTITION_INFO_GET_REGS
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*/
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#define FFA_PART_INFO_METADATA_LAST_IDX_SHIFT 0
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#define FFA_PART_INFO_METADATA_CURRENT_IDX_SHIFT 16
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#define FFA_PART_INFO_METADATA_TAG_SHIFT 32
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/** Partition properties values in EFI_FFA_PART_INFO_DESC->PartitionProps
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* See FF-A spec chapter 6.2 partition discovery.
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*/
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#define FFA_PART_PROP_RECV_DIRECT_REQ (1 << 0)
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#define FFA_PART_PROP_SEND_DIRECT_REQ (1 << 1)
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#define FFA_PART_PROP_SEND_INDIRECT_REQ (1 << 2)
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#define FFA_PART_PROP_RECV_INDIRECT_REQ (1 << 3)
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#define FFA_PART_PROP_ID_TYPE_SHIFT 4
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#define FFA_PART_PROP_ID_TYPE_MASK 0x3
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#define FFA_PART_PROP_ID_PE_EP 0x00
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#define FFA_PART_PROP_ID_STREAM_EP_INDEPENDENT 0x01
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#define FFA_PART_PROP_ID_STREAM_EP_DEPENDENT 0x02
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#define FFA_PART_PROP_ID_AUX 0x03
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#define FFA_PART_PROP_VM_STATUS_CREATED (1 << 6)
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#define FFA_PART_PROP_VM_STATUS_DESTROYED (1 << 7)
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#define FFA_PART_PROP_EXECUTE_STATE (1 << 8)
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#define FFA_PART_PROP_RECV_DIRECT_REQ2 (1 << 9)
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#define FFA_PART_PROP_SEND_DIRECT_REQ2 (1 << 10)
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typedef union {
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/// Number of Execution context
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UINT16 ExecContextCount;
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/// ID of proxy endpoint for a dependent peripheral device
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UINT16 ProxyPartitionId;
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} EXEC_CONTEXT;
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/** Partition information Descriptor in the FF-A v1.2 spec.
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* See FF-A spec chapter 6.2 partition discovery.
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*/
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typedef struct {
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/// Partition id
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UINT16 PartitionId;
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/// Execution context count or Proxy partition id
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EXEC_CONTEXT ExecContextCountOrProxyPartitionId;
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/// Flags to determine partition properties
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UINT32 PartitionProps;
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/// UUID of partition
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UINT32 PartitionUuid[4];
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} EFI_FFA_PART_INFO_DESC;
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#endif
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