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| author | Olivier Martin <olivier.martin@arm.com> | 2013-10-29 06:08:39 +0000 |
|---|---|---|
| committer | oliviermartin <oliviermartin@6f19259b-4bc3-4df7-8a09-765794883524> | 2013-10-29 06:08:39 +0000 |
| commit | d092ba8e71fb3516ad4965ebf55aaa90692f3cd0 (patch) | |
| tree | fe44c045c4cd6838c994d395eb03be3f2d84fc6e /OvmfPkg/Include | |
| parent | b342c97dfc49f47accb243124fba208f63d3ce57 (diff) | |
| download | edk2-platforms-d092ba8e71fb3516ad4965ebf55aaa90692f3cd0.tar.xz | |
OvmfPkg/Virtio.h: Added PCI/MMIO Virtio Headers Offsets
Offsets are different between the PCI and MMIO transport layer.
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Olivier Martin <olivier.martin@arm.com>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Tested-by: Laszlo Ersek <lersek@redhat.com>
git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@14808 6f19259b-4bc3-4df7-8a09-765794883524
Diffstat (limited to 'OvmfPkg/Include')
| -rw-r--r-- | OvmfPkg/Include/IndustryStandard/Virtio.h | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/OvmfPkg/Include/IndustryStandard/Virtio.h b/OvmfPkg/Include/IndustryStandard/Virtio.h index e5abe1bd6e..f1eb2ea120 100644 --- a/OvmfPkg/Include/IndustryStandard/Virtio.h +++ b/OvmfPkg/Include/IndustryStandard/Virtio.h @@ -4,6 +4,7 @@ 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
@@ -42,6 +43,40 @@ #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.
//
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