diff options
| author |   Angelos Mouzakitis <a.mouzakitis@virtualopensystems.com> | 2023-10-10 14:33:42 +0000 |
|---|---|---|
| committer | Angelos Mouzakitis <a.mouzakitis@virtualopensystems.com> | 2023-10-10 14:33:42 +0000 |
| commit | af1a266670d040d2f4083ff309d732d648afba2a (patch) | |
| tree | 2fc46203448ddcc6f81546d379abfaeb323575e9 /roms/edk2/OvmfPkg/Include/IndustryStandard/QemuPciBridgeCapabilities.h | |
| parent | e02cda008591317b1625707ff8e115a4841aa889 (diff) | |
Change-Id: Iaf8d18082d3991dec7c0ebbea540f092188eb4ec
Diffstat (limited to 'roms/edk2/OvmfPkg/Include/IndustryStandard/QemuPciBridgeCapabilities.h')
| -rw-r--r-- | roms/edk2/OvmfPkg/Include/IndustryStandard/QemuPciBridgeCapabilities.h | 54 |
1 files changed, 54 insertions, 0 deletions
diff --git a/roms/edk2/OvmfPkg/Include/IndustryStandard/QemuPciBridgeCapabilities.h b/roms/edk2/OvmfPkg/Include/IndustryStandard/QemuPciBridgeCapabilities.h new file mode 100644 index 000000000..e4fc5df26 --- /dev/null +++ b/roms/edk2/OvmfPkg/Include/IndustryStandard/QemuPciBridgeCapabilities.h @@ -0,0 +1,54 @@ +/** @file
+ Macro and type definitions for QEMU's Red Hat vendor-specific PCI
+ capabilities that provide various hints about PCI Bridges.
+
+ Refer to "docs/pcie_pci_bridge.txt" in the QEMU source directory.
+
+ Copyright (C) 2017, Red Hat, Inc.
+
+ SPDX-License-Identifier: BSD-2-Clause-Patent
+**/
+
+#ifndef __QEMU_PCI_BRIDGE_CAPABILITIES_H__
+#define __QEMU_PCI_BRIDGE_CAPABILITIES_H__
+
+#include <IndustryStandard/Pci23.h>
+
+//
+// The hints apply to PCI Bridges whose PCI_DEVICE_INDEPENDENT_REGION.VendorId
+// equals the following value.
+//
+#define QEMU_PCI_BRIDGE_VENDOR_ID_REDHAT 0x1B36
+
+//
+// Common capability header for all hints.
+//
+#pragma pack (1)
+typedef struct {
+ EFI_PCI_CAPABILITY_VENDOR_HDR VendorHdr;
+ UINT8 Type;
+} QEMU_PCI_BRIDGE_CAPABILITY_HDR;
+#pragma pack ()
+
+//
+// Values defined for QEMU_PCI_BRIDGE_CAPABILITY_HDR.Type.
+//
+#define QEMU_PCI_BRIDGE_CAPABILITY_TYPE_RESOURCE_RESERVATION 0x01
+
+//
+// PCI Resource Reservation structure for when
+// QEMU_PCI_BRIDGE_CAPABILITY_HDR.Type equals
+// QEMU_PCI_BRIDGE_CAPABILITY_TYPE_RESOURCE_RESERVATION.
+//
+#pragma pack (1)
+typedef struct {
+ QEMU_PCI_BRIDGE_CAPABILITY_HDR BridgeHdr;
+ UINT32 BusNumbers;
+ UINT64 Io;
+ UINT32 NonPrefetchable32BitMmio;
+ UINT32 Prefetchable32BitMmio;
+ UINT64 Prefetchable64BitMmio;
+} QEMU_PCI_BRIDGE_CAPABILITY_RESOURCE_RESERVATION;
+#pragma pack ()
+
+#endif
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