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| author | Abner Chang <abner.chang@hpe.com> | 2021-10-11 21:39:13 +0800 |
|---|---|---|
| committer | mergify[bot] <37929162+mergify[bot]@users.noreply.github.com> | 2021-10-14 06:25:52 +0000 |
| commit | e0c23cba5eaeb6c934a10ecdabcb235ef5d63799 (patch) | |
| tree | f9ac286c1a35b5b3c4658b6015d83cb598b74dfe /OvmfPkg/Fdt | |
| parent | b21c6794de7903f4ead34d8a7ed57f675380676d (diff) | |
| download | edk2-e0c23cba5eaeb6c934a10ecdabcb235ef5d63799.tar.gz edk2-e0c23cba5eaeb6c934a10ecdabcb235ef5d63799.tar.bz2 edk2-e0c23cba5eaeb6c934a10ecdabcb235ef5d63799.zip | |
ArmVirtPkg/VirtioFdtDxe: Relocate VirtioFdtDxe to OvmfPkg/Fdt
Relocate VirtioFdtDxe to OvmfPkg/Fdt, this driver is leverage by
both ARM and RISC-V archs.
Signed-off-by: Abner Chang <abner.chang@hpe.com>
Cc: Ard Biesheuvel <ardb+tianocore@kernel.org>
Cc: Leif Lindholm <leif@nuviainc.com>
Cc: Sami Mujawar <sami.mujawar@arm.com>
Cc: Jiewen Yao <jiewen.yao@intel.com>
Cc: Jordan Justen <jordan.l.justen@intel.com>
Cc: Gerd Hoffmann <kraxel@redhat.com>
Cc: Daniel Schaefer <daniel.schaefer@hpe.com>
Cc: Sunil V L <sunilvl@ventanamicro.com>
Reviewed-by: Daniel Schaefer <daniel.schaefer@hpe.com>
Reviewed-by: Sunil V L <sunilvl@ventanamicro.com>
Acked-by: Gerd Hoffmann <kraxel@redhat.com>
Acked-by: Jiewen Yao <jiewen.yao@intel.com>
Diffstat (limited to 'OvmfPkg/Fdt')
| -rw-r--r-- | OvmfPkg/Fdt/VirtioFdtDxe/VirtioFdtDxe.c | 118 | ||||
| -rw-r--r-- | OvmfPkg/Fdt/VirtioFdtDxe/VirtioFdtDxe.inf | 45 |
2 files changed, 163 insertions, 0 deletions
diff --git a/OvmfPkg/Fdt/VirtioFdtDxe/VirtioFdtDxe.c b/OvmfPkg/Fdt/VirtioFdtDxe/VirtioFdtDxe.c new file mode 100644 index 0000000000..9625693b15 --- /dev/null +++ b/OvmfPkg/Fdt/VirtioFdtDxe/VirtioFdtDxe.c @@ -0,0 +1,118 @@ +/** @file
+* Virtio FDT client protocol driver for virtio,mmio DT node
+*
+* Copyright (c) 2014 - 2016, Linaro Ltd. All rights reserved.<BR>
+*
+* SPDX-License-Identifier: BSD-2-Clause-Patent
+*
+**/
+
+#include <Library/BaseLib.h>
+#include <Library/BaseMemoryLib.h>
+#include <Library/DebugLib.h>
+#include <Library/DevicePathLib.h>
+#include <Library/MemoryAllocationLib.h>
+#include <Library/UefiBootServicesTableLib.h>
+#include <Library/UefiDriverEntryPoint.h>
+#include <Library/VirtioMmioDeviceLib.h>
+
+#include <Guid/VirtioMmioTransport.h>
+
+#include <Protocol/FdtClient.h>
+
+#pragma pack (1)
+typedef struct {
+ VENDOR_DEVICE_PATH Vendor;
+ UINT64 PhysBase;
+ EFI_DEVICE_PATH_PROTOCOL End;
+} VIRTIO_TRANSPORT_DEVICE_PATH;
+#pragma pack ()
+
+EFI_STATUS
+EFIAPI
+InitializeVirtioFdtDxe (
+ IN EFI_HANDLE ImageHandle,
+ IN EFI_SYSTEM_TABLE *SystemTable
+ )
+{
+ EFI_STATUS Status, FindNodeStatus;
+ FDT_CLIENT_PROTOCOL *FdtClient;
+ INT32 Node;
+ CONST UINT64 *Reg;
+ UINT32 RegSize;
+ VIRTIO_TRANSPORT_DEVICE_PATH *DevicePath;
+ EFI_HANDLE Handle;
+ UINT64 RegBase;
+
+ Status = gBS->LocateProtocol (&gFdtClientProtocolGuid, NULL,
+ (VOID **)&FdtClient);
+ ASSERT_EFI_ERROR (Status);
+
+ for (FindNodeStatus = FdtClient->FindCompatibleNode (FdtClient,
+ "virtio,mmio", &Node);
+ !EFI_ERROR (FindNodeStatus);
+ FindNodeStatus = FdtClient->FindNextCompatibleNode (FdtClient,
+ "virtio,mmio", Node, &Node)) {
+
+ Status = FdtClient->GetNodeProperty (FdtClient, Node, "reg",
+ (CONST VOID **)&Reg, &RegSize);
+ if (EFI_ERROR (Status)) {
+ DEBUG ((EFI_D_ERROR, "%a: GetNodeProperty () failed (Status == %r)\n",
+ __FUNCTION__, Status));
+ continue;
+ }
+
+ ASSERT (RegSize == 16);
+
+ //
+ // Create a unique device path for this transport on the fly
+ //
+ RegBase = SwapBytes64 (*Reg);
+ DevicePath = (VIRTIO_TRANSPORT_DEVICE_PATH *)CreateDeviceNode (
+ HARDWARE_DEVICE_PATH,
+ HW_VENDOR_DP,
+ sizeof (VIRTIO_TRANSPORT_DEVICE_PATH));
+ if (DevicePath == NULL) {
+ DEBUG ((EFI_D_ERROR, "%a: Out of memory\n", __FUNCTION__));
+ continue;
+ }
+
+ CopyGuid (&DevicePath->Vendor.Guid, &gVirtioMmioTransportGuid);
+ DevicePath->PhysBase = RegBase;
+ SetDevicePathNodeLength (&DevicePath->Vendor,
+ sizeof (*DevicePath) - sizeof (DevicePath->End));
+ SetDevicePathEndNode (&DevicePath->End);
+
+ Handle = NULL;
+ Status = gBS->InstallProtocolInterface (&Handle,
+ &gEfiDevicePathProtocolGuid, EFI_NATIVE_INTERFACE,
+ DevicePath);
+ if (EFI_ERROR (Status)) {
+ DEBUG ((EFI_D_ERROR, "%a: Failed to install the EFI_DEVICE_PATH "
+ "protocol on a new handle (Status == %r)\n",
+ __FUNCTION__, Status));
+ FreePool (DevicePath);
+ continue;
+ }
+
+ Status = VirtioMmioInstallDevice (RegBase, Handle);
+ if (EFI_ERROR (Status)) {
+ DEBUG ((EFI_D_ERROR, "%a: Failed to install VirtIO transport @ 0x%Lx "
+ "on handle %p (Status == %r)\n", __FUNCTION__, RegBase,
+ Handle, Status));
+
+ Status = gBS->UninstallProtocolInterface (Handle,
+ &gEfiDevicePathProtocolGuid, DevicePath);
+ ASSERT_EFI_ERROR (Status);
+ FreePool (DevicePath);
+ continue;
+ }
+ }
+
+ if (EFI_ERROR (FindNodeStatus) && FindNodeStatus != EFI_NOT_FOUND) {
+ DEBUG ((EFI_D_ERROR, "%a: Error occurred while iterating DT nodes "
+ "(FindNodeStatus == %r)\n", __FUNCTION__, FindNodeStatus));
+ }
+
+ return EFI_SUCCESS;
+}
diff --git a/OvmfPkg/Fdt/VirtioFdtDxe/VirtioFdtDxe.inf b/OvmfPkg/Fdt/VirtioFdtDxe/VirtioFdtDxe.inf new file mode 100644 index 0000000000..dece5c806b --- /dev/null +++ b/OvmfPkg/Fdt/VirtioFdtDxe/VirtioFdtDxe.inf @@ -0,0 +1,45 @@ +## @file
+# Virtio FDT client protocol driver for virtio,mmio DT node
+#
+# Copyright (c) 2014 - 2016, Linaro Ltd. All rights reserved.<BR>
+#
+# SPDX-License-Identifier: BSD-2-Clause-Patent
+#
+##
+
+[Defines]
+ INF_VERSION = 0x00010005
+ BASE_NAME = VirtioFdtDxe
+ FILE_GUID = 0049858F-8CA7-4CCD-918B-D952CBF32975
+ MODULE_TYPE = DXE_DRIVER
+ VERSION_STRING = 1.0
+
+ ENTRY_POINT = InitializeVirtioFdtDxe
+
+[Sources]
+ VirtioFdtDxe.c
+
+[Packages]
+ EmbeddedPkg/EmbeddedPkg.dec
+ MdePkg/MdePkg.dec
+ OvmfPkg/OvmfPkg.dec
+
+[LibraryClasses]
+ BaseLib
+ BaseMemoryLib
+ DebugLib
+ DevicePathLib
+ MemoryAllocationLib
+ UefiBootServicesTableLib
+ UefiDriverEntryPoint
+ VirtioMmioDeviceLib
+
+[Guids]
+ gVirtioMmioTransportGuid
+
+[Protocols]
+ gEfiDevicePathProtocolGuid ## PRODUCES
+ gFdtClientProtocolGuid ## CONSUMES
+
+[Depex]
+ gFdtClientProtocolGuid
|