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Diffstat (limited to 'OvmfPkg/Include/IndustryStandard/Virtio.h')
| -rw-r--r-- | OvmfPkg/Include/IndustryStandard/Virtio.h | 175 |
1 files changed, 0 insertions, 175 deletions
diff --git a/OvmfPkg/Include/IndustryStandard/Virtio.h b/OvmfPkg/Include/IndustryStandard/Virtio.h deleted file mode 100644 index fcf7b67431..0000000000 --- a/OvmfPkg/Include/IndustryStandard/Virtio.h +++ /dev/null @@ -1,175 +0,0 @@ -/** @file
-
- Generic type and macro definitions corresponding to the virtio-0.9.5
- specification.
-
- Copyright (C) 2012, Red Hat, Inc.
- Portion of Copyright (C) 2013, ARM Ltd.
-
- 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.
-
-**/
-
-#ifndef _VIRTIO_H_
-#define _VIRTIO_H_
-
-#include <Base.h>
-
-//
-// VirtIo Subsystem Device IDs
-//
-#define VIRTIO_SUBSYSTEM_NETWORK_CARD 1
-#define VIRTIO_SUBSYSTEM_BLOCK_DEVICE 2
-#define VIRTIO_SUBSYSTEM_CONSOLE 3
-#define VIRTIO_SUBSYSTEM_ENTROPY_SOURCE 4
-#define VIRTIO_SUBSYSTEM_MEMORY_BALLOONING 5
-#define VIRTIO_SUBSYSTEM_IO_MEMORY 6
-#define VIRTIO_SUBSYSTEM_RPMSG 7
-#define VIRTIO_SUBSYSTEM_SCSI_HOST 8
-#define VIRTIO_SUBSYSTEM_9P_TRANSPORT 9
-#define VIRTIO_SUBSYSTEM_MAC80211_WLAN 10
-
-//
-// Virtio IDs
-//
-#define VIRTIO_VENDOR_ID 0x1AF4
-#define VIRTIO_MMIO_MAGIC 0x74726976 // "virt"
-
-
-//
-// VirtIo Device Specific Configuration Offsets
-//
-#define VIRTIO_DEVICE_SPECIFIC_CONFIGURATION_OFFSET_PCI 20
-#define VIRTIO_DEVICE_SPECIFIC_CONFIGURATION_OFFSET_PCI_WITH_MSI_X 24
-#define VIRTIO_DEVICE_SPECIFIC_CONFIGURATION_OFFSET_MMIO 0x100
-
-//
-// PCI VirtIo Header Offsets
-//
-#define VIRTIO_PCI_OFFSET_DEVICE_FEATURES 0x00
-#define VIRTIO_PCI_OFFSET_GUEST_FEATURES 0x04
-#define VIRTIO_PCI_OFFSET_QUEUE_ADDRESS 0x08
-#define VIRTIO_PCI_OFFSET_QUEUE_SIZE 0x0C
-#define VIRTIO_PCI_OFFSET_QUEUE_SELECT 0x0E
-#define VIRTIO_PCI_OFFSET_QUEUE_NOTIFY 0x10
-#define VIRTIO_PCI_OFFSET_QUEUE_DEVICE_STATUS 0x12
-#define VIRTIO_PCI_OFFSET_QUEUE_DEVICE_ISR 0x13
-
-//
-// MMIO VirtIo Header Offsets
-//
-#define VIRTIO_MMIO_OFFSET_MAGIC 0x00
-#define VIRTIO_MMIO_OFFSET_VERSION 0x04
-#define VIRTIO_MMIO_OFFSET_DEVICE_ID 0x08
-#define VIRTIO_MMIO_OFFSET_VENDOR_ID 0x0C
-#define VIRTIO_MMIO_OFFSET_HOST_FEATURES 0x10
-#define VIRTIO_MMIO_OFFSET_HOST_FEATURES_SEL 0x14
-#define VIRTIO_MMIO_OFFSET_GUEST_FEATURES 0x20
-#define VIRTIO_MMIO_OFFSET_GUEST_FEATURES_SEL 0x24
-#define VIRTIO_MMIO_OFFSET_GUEST_PAGE_SIZE 0x28
-#define VIRTIO_MMIO_OFFSET_QUEUE_SEL 0x30
-#define VIRTIO_MMIO_OFFSET_QUEUE_NUM_MAX 0x34
-#define VIRTIO_MMIO_OFFSET_QUEUE_NUM 0x38
-#define VIRTIO_MMIO_OFFSET_QUEUE_ALIGN 0x3C
-#define VIRTIO_MMIO_OFFSET_QUEUE_PFN 0x40
-#define VIRTIO_MMIO_OFFSET_QUEUE_NOTIFY 0x50
-#define VIRTIO_MMIO_OFFSET_INTERRUPT_STATUS 0x60
-#define VIRTIO_MMIO_OFFSET_INTERRUPT_ACK 0x64
-#define VIRTIO_MMIO_OFFSET_STATUS 0x70
-
-//
-// Data in the communication area is defined as packed and accessed as
-// volatile.
-//
-// Some structures contain arrays with dynamically determined size. In such
-// cases the array and its sibling fields are replaced with pointers.
-//
-// All indices (variables and fields named *Idx) are free-running and wrap
-// around after 0xFFFF. The queue size reported by the host is always an
-// integral power of 2, not greater than 32768. Actual array indices are
-// consistently calculated by taking the remainder of a given Idx object modulo
-// QueueSize. Since 0x10000 is an integral multiple of the QueueSize, UINT16
-// wraparound is a correct wraparound modulo QueueSize too (it doesn't offset
-// the remainder class).
-//
-// virtio-0.9.5, 2.3.4 Available Ring
-//
-#define VRING_AVAIL_F_NO_INTERRUPT BIT0
-
-typedef struct {
- volatile UINT16 *Flags;
- volatile UINT16 *Idx;
-
- volatile UINT16 *Ring; // QueueSize elements
- volatile UINT16 *UsedEvent; // unused as per negotiation
-} VRING_AVAIL;
-
-
-//
-// virtio-0.9.5, 2.3.5 Used Ring
-//
-#define VRING_USED_F_NO_NOTIFY BIT0
-
-#pragma pack(1)
-typedef struct {
- UINT32 Id;
- UINT32 Len;
-} VRING_USED_ELEM;
-#pragma pack()
-
-typedef struct {
- volatile UINT16 *Flags;
- volatile UINT16 *Idx;
- volatile VRING_USED_ELEM *UsedElem; // QueueSize elements
- volatile UINT16 *AvailEvent; // unused as per negotiation
-} VRING_USED;
-
-
-//
-// virtio-0.9.5, 2.3.2 Descriptor Table
-//
-#define VRING_DESC_F_NEXT BIT0 // more descriptors in this request
-#define VRING_DESC_F_WRITE BIT1 // buffer to be written *by the host*
-#define VRING_DESC_F_INDIRECT BIT2 // unused
-
-#pragma pack(1)
-typedef struct {
- UINT64 Addr;
- UINT32 Len;
- UINT16 Flags;
- UINT16 Next;
-} VRING_DESC;
-#pragma pack()
-
-typedef struct {
- UINTN NumPages;
- VOID *Base; // deallocate only this field
- volatile VRING_DESC *Desc; // QueueSize elements
- VRING_AVAIL Avail;
- VRING_USED Used;
- UINT16 QueueSize;
-} VRING;
-
-//
-// virtio-0.9.5, 2.2.2.1 Device Status
-//
-#define VSTAT_ACK BIT0
-#define VSTAT_DRIVER BIT1
-#define VSTAT_DRIVER_OK BIT2
-#define VSTAT_FAILED BIT7
-
-//
-// virtio-0.9.5, Appendix B: Reserved (Device-Independent) Feature Bits
-//
-#define VIRTIO_F_NOTIFY_ON_EMPTY BIT24
-#define VIRTIO_F_RING_INDIRECT_DESC BIT28
-#define VIRTIO_F_RING_EVENT_IDX BIT29
-
-
-#endif // _VIRTIO_H_
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