X-Git-Url: https://git.proxmox.com/?a=blobdiff_plain;f=OvmfPkg%2FVirtioPciDeviceDxe%2FVirtioPciDevice.c;h=c5c8d5ebef1d82345cc2f2cfcff9c2b3693d917e;hb=HEAD;hp=25b06fcfd5ae263cc6ea6778eb4afa41d0ce49cc;hpb=235be6a0f197d6c103615ae2bf7b329ece890da1;p=mirror_edk2.git
diff --git a/OvmfPkg/VirtioPciDeviceDxe/VirtioPciDevice.c b/OvmfPkg/VirtioPciDeviceDxe/VirtioPciDevice.c
index 25b06fcfd5..b4ac195b0d 100644
--- a/OvmfPkg/VirtioPciDeviceDxe/VirtioPciDevice.c
+++ b/OvmfPkg/VirtioPciDeviceDxe/VirtioPciDevice.c
@@ -3,16 +3,11 @@
This driver produces Virtio Device Protocol instances for Virtio PCI devices.
Copyright (C) 2012, Red Hat, Inc.
- Copyright (c) 2012, Intel Corporation. All rights reserved.
+ Copyright (c) 2012 - 2016, Intel Corporation. All rights reserved.
Copyright (C) 2013, ARM Ltd.
+ Copyright (C) 2017, AMD Inc, All rights reserved.
- 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.
+ SPDX-License-Identifier: BSD-2-Clause-Patent
**/
@@ -25,7 +20,7 @@
#include "VirtioPciDevice.h"
-STATIC VIRTIO_DEVICE_PROTOCOL mDeviceProtocolTemplate = {
+STATIC VIRTIO_DEVICE_PROTOCOL mDeviceProtocolTemplate = {
0, // Revision
0, // SubSystemDeviceId
VirtioPciGetDeviceFeatures, // GetDeviceFeatures
@@ -40,7 +35,11 @@ STATIC VIRTIO_DEVICE_PROTOCOL mDeviceProtocolTemplate = {
VirtioPciGetDeviceStatus, // GetDeviceStatus
VirtioPciSetDeviceStatus, // SetDeviceStatus
VirtioPciDeviceWrite, // WriteDevice
- VirtioPciDeviceRead // ReadDevice
+ VirtioPciDeviceRead, // ReadDevice
+ VirtioPciAllocateSharedPages, // AllocateSharedPages
+ VirtioPciFreeSharedPages, // FreeSharedPages
+ VirtioPciMapSharedBuffer, // MapSharedBuffer
+ VirtioPciUnmapSharedBuffer, // UnmapSharedBuffer
};
/**
@@ -68,16 +67,16 @@ STATIC VIRTIO_DEVICE_PROTOCOL mDeviceProtocolTemplate = {
EFI_STATUS
EFIAPI
VirtioPciIoRead (
- IN VIRTIO_PCI_DEVICE *Dev,
- IN UINTN FieldOffset,
- IN UINTN FieldSize,
- IN UINTN BufferSize,
- OUT VOID *Buffer
+ IN VIRTIO_PCI_DEVICE *Dev,
+ IN UINTN FieldOffset,
+ IN UINTN FieldSize,
+ IN UINTN BufferSize,
+ OUT VOID *Buffer
)
{
- UINTN Count;
- EFI_PCI_IO_PROTOCOL_WIDTH Width;
- EFI_PCI_IO_PROTOCOL *PciIo;
+ UINTN Count;
+ EFI_PCI_IO_PROTOCOL_WIDTH Width;
+ EFI_PCI_IO_PROTOCOL *PciIo;
ASSERT (FieldSize == BufferSize);
@@ -106,9 +105,9 @@ VirtioPciIoRead (
//
Count = 2;
- //
- // fall through
- //
+ //
+ // fall through
+ //
case 4:
Width = EfiPciIoWidthUint32;
break;
@@ -151,15 +150,15 @@ VirtioPciIoRead (
EFI_STATUS
EFIAPI
VirtioPciIoWrite (
- IN VIRTIO_PCI_DEVICE *Dev,
- IN UINTN FieldOffset,
- IN UINTN FieldSize,
- IN UINT64 Value
+ IN VIRTIO_PCI_DEVICE *Dev,
+ IN UINTN FieldOffset,
+ IN UINTN FieldSize,
+ IN UINT64 Value
)
{
- UINTN Count;
- EFI_PCI_IO_PROTOCOL_WIDTH Width;
- EFI_PCI_IO_PROTOCOL *PciIo;
+ UINTN Count;
+ EFI_PCI_IO_PROTOCOL_WIDTH Width;
+ EFI_PCI_IO_PROTOCOL *PciIo;
PciIo = Dev->PciIo;
Count = 1;
@@ -186,9 +185,9 @@ VirtioPciIoWrite (
//
Count = Count * 2;
- //
- // fall through
- //
+ //
+ // fall through
+ //
case 4:
Width = EfiPciIoWidthUint32;
break;
@@ -237,14 +236,14 @@ STATIC
EFI_STATUS
EFIAPI
VirtioPciDeviceBindingSupported (
- IN EFI_DRIVER_BINDING_PROTOCOL *This,
- IN EFI_HANDLE DeviceHandle,
- IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath
+ IN EFI_DRIVER_BINDING_PROTOCOL *This,
+ IN EFI_HANDLE DeviceHandle,
+ IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath
)
{
- EFI_STATUS Status;
- EFI_PCI_IO_PROTOCOL *PciIo;
- PCI_TYPE00 Pci;
+ EFI_STATUS Status;
+ EFI_PCI_IO_PROTOCOL *PciIo;
+ PCI_TYPE00 Pci;
//
// Attempt to open the device with the PciIo set of interfaces. On success,
@@ -285,7 +284,8 @@ VirtioPciDeviceBindingSupported (
if ((Pci.Hdr.VendorId == VIRTIO_VENDOR_ID) &&
(Pci.Hdr.DeviceId >= 0x1000) &&
(Pci.Hdr.DeviceId <= 0x103F) &&
- (Pci.Hdr.RevisionID == 0x00)) {
+ (Pci.Hdr.RevisionID == 0x00))
+ {
Status = EFI_SUCCESS;
} else {
Status = EFI_UNSUPPORTED;
@@ -296,8 +296,12 @@ VirtioPciDeviceBindingSupported (
// We needed PCI IO access only transitorily, to see whether we support the
// device or not.
//
- gBS->CloseProtocol (DeviceHandle, &gEfiPciIoProtocolGuid,
- This->DriverBindingHandle, DeviceHandle);
+ gBS->CloseProtocol (
+ DeviceHandle,
+ &gEfiPciIoProtocolGuid,
+ This->DriverBindingHandle,
+ DeviceHandle
+ );
return Status;
}
@@ -322,12 +326,12 @@ STATIC
EFI_STATUS
EFIAPI
VirtioPciInit (
- IN OUT VIRTIO_PCI_DEVICE *Device
+ IN OUT VIRTIO_PCI_DEVICE *Device
)
{
- EFI_STATUS Status;
- EFI_PCI_IO_PROTOCOL *PciIo;
- PCI_TYPE00 Pci;
+ EFI_STATUS Status;
+ EFI_PCI_IO_PROTOCOL *PciIo;
+ PCI_TYPE00 Pci;
ASSERT (Device != NULL);
PciIo = Device->PciIo;
@@ -335,13 +339,13 @@ VirtioPciInit (
ASSERT (PciIo->Pci.Read != NULL);
Status = PciIo->Pci.Read (
- PciIo, // (protocol, device)
- // handle
- EfiPciIoWidthUint32, // access width & copy
- // mode
- 0, // Offset
+ PciIo, // (protocol, device)
+ // handle
+ EfiPciIoWidthUint32, // access width & copy
+ // mode
+ 0, // Offset
sizeof (Pci) / sizeof (UINT32), // Count
- &Pci // target buffer
+ &Pci // target buffer
);
if (EFI_ERROR (Status)) {
return Status;
@@ -350,13 +354,16 @@ VirtioPciInit (
//
// Copy protocol template
//
- CopyMem (&Device->VirtioDevice, &mDeviceProtocolTemplate,
- sizeof (VIRTIO_DEVICE_PROTOCOL));
+ CopyMem (
+ &Device->VirtioDevice,
+ &mDeviceProtocolTemplate,
+ sizeof (VIRTIO_DEVICE_PROTOCOL)
+ );
//
// Initialize the protocol interface attributes
//
- Device->VirtioDevice.Revision = VIRTIO_SPEC_REVISION (0, 9, 5);
+ Device->VirtioDevice.Revision = VIRTIO_SPEC_REVISION (0, 9, 5);
Device->VirtioDevice.SubSystemDeviceId = Pci.Device.SubsystemID;
//
@@ -364,7 +371,7 @@ VirtioPciInit (
// the offset would become 24 after enabling MSI-X.
//
Device->DeviceSpecificConfigurationOffset =
- VIRTIO_DEVICE_SPECIFIC_CONFIGURATION_OFFSET_PCI;
+ VIRTIO_DEVICE_SPECIFIC_CONFIGURATION_OFFSET_PCI;
return EFI_SUCCESS;
}
@@ -377,12 +384,11 @@ VirtioPciInit (
@param[in, out] Dev The device to clean up.
**/
-
STATIC
VOID
EFIAPI
VirtioPciUninit (
- IN OUT VIRTIO_PCI_DEVICE *Device
+ IN OUT VIRTIO_PCI_DEVICE *Device
)
{
// Note: This function mirrors VirtioPciInit() that does not allocate any
@@ -393,7 +399,7 @@ VirtioPciUninit (
After we've pronounced support for a specific device in
DriverBindingSupported(), we start managing said device (passed in by the
- Driver Exeuction Environment) with the following service.
+ Driver Execution Environment) with the following service.
See DriverBindingSupported() for specification references.
@@ -421,22 +427,27 @@ STATIC
EFI_STATUS
EFIAPI
VirtioPciDeviceBindingStart (
- IN EFI_DRIVER_BINDING_PROTOCOL *This,
- IN EFI_HANDLE DeviceHandle,
- IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath
+ IN EFI_DRIVER_BINDING_PROTOCOL *This,
+ IN EFI_HANDLE DeviceHandle,
+ IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath
)
{
- VIRTIO_PCI_DEVICE *Device;
- EFI_STATUS Status;
+ VIRTIO_PCI_DEVICE *Device;
+ EFI_STATUS Status;
- Device = (VIRTIO_PCI_DEVICE *) AllocateZeroPool (sizeof *Device);
+ Device = (VIRTIO_PCI_DEVICE *)AllocateZeroPool (sizeof *Device);
if (Device == NULL) {
return EFI_OUT_OF_RESOURCES;
}
- Status = gBS->OpenProtocol (DeviceHandle, &gEfiPciIoProtocolGuid,
- (VOID **)&Device->PciIo, This->DriverBindingHandle,
- DeviceHandle, EFI_OPEN_PROTOCOL_BY_DRIVER);
+ Status = gBS->OpenProtocol (
+ DeviceHandle,
+ &gEfiPciIoProtocolGuid,
+ (VOID **)&Device->PciIo,
+ This->DriverBindingHandle,
+ DeviceHandle,
+ EFI_OPEN_PROTOCOL_BY_DRIVER
+ );
if (EFI_ERROR (Status)) {
goto FreeVirtioPci;
}
@@ -452,15 +463,23 @@ VirtioPciDeviceBindingStart (
//
// For virtio-pci we only need IO space access.
//
- Status = Device->PciIo->Attributes (Device->PciIo,
- EfiPciIoAttributeOperationGet, 0, &Device->OriginalPciAttributes);
+ Status = Device->PciIo->Attributes (
+ Device->PciIo,
+ EfiPciIoAttributeOperationGet,
+ 0,
+ &Device->OriginalPciAttributes
+ );
if (EFI_ERROR (Status)) {
goto ClosePciIo;
}
- Status = Device->PciIo->Attributes (Device->PciIo,
- EfiPciIoAttributeOperationEnable,
- EFI_PCI_IO_ATTRIBUTE_IO, NULL);
+ Status = Device->PciIo->Attributes (
+ Device->PciIo,
+ EfiPciIoAttributeOperationEnable,
+ (EFI_PCI_IO_ATTRIBUTE_IO |
+ EFI_PCI_IO_ATTRIBUTE_BUS_MASTER),
+ NULL
+ );
if (EFI_ERROR (Status)) {
goto ClosePciIo;
}
@@ -479,9 +498,12 @@ VirtioPciDeviceBindingStart (
// interface.
//
Device->Signature = VIRTIO_PCI_DEVICE_SIGNATURE;
- Status = gBS->InstallProtocolInterface (&DeviceHandle,
- &gVirtioDeviceProtocolGuid, EFI_NATIVE_INTERFACE,
- &Device->VirtioDevice);
+ Status = gBS->InstallProtocolInterface (
+ &DeviceHandle,
+ &gVirtioDeviceProtocolGuid,
+ EFI_NATIVE_INTERFACE,
+ &Device->VirtioDevice
+ );
if (EFI_ERROR (Status)) {
goto UninitDev;
}
@@ -492,12 +514,20 @@ UninitDev:
VirtioPciUninit (Device);
RestorePciAttributes:
- Device->PciIo->Attributes (Device->PciIo, EfiPciIoAttributeOperationSet,
- Device->OriginalPciAttributes, NULL);
+ Device->PciIo->Attributes (
+ Device->PciIo,
+ EfiPciIoAttributeOperationSet,
+ Device->OriginalPciAttributes,
+ NULL
+ );
ClosePciIo:
- gBS->CloseProtocol (DeviceHandle, &gEfiPciIoProtocolGuid,
- This->DriverBindingHandle, DeviceHandle);
+ gBS->CloseProtocol (
+ DeviceHandle,
+ &gEfiPciIoProtocolGuid,
+ This->DriverBindingHandle,
+ DeviceHandle
+ );
FreeVirtioPci:
FreePool (Device);
@@ -534,13 +564,13 @@ STATIC
EFI_STATUS
EFIAPI
VirtioPciDeviceBindingStop (
- IN EFI_DRIVER_BINDING_PROTOCOL *This,
- IN EFI_HANDLE DeviceHandle,
- IN UINTN NumberOfChildren,
- IN EFI_HANDLE *ChildHandleBuffer
+ IN EFI_DRIVER_BINDING_PROTOCOL *This,
+ IN EFI_HANDLE DeviceHandle,
+ IN UINTN NumberOfChildren,
+ IN EFI_HANDLE *ChildHandleBuffer
)
{
- EFI_STATUS Status;
+ EFI_STATUS Status;
VIRTIO_DEVICE_PROTOCOL *VirtioDevice;
VIRTIO_PCI_DEVICE *Device;
@@ -561,32 +591,42 @@ VirtioPciDeviceBindingStop (
//
// Handle Stop() requests for in-use driver instances gracefully.
//
- Status = gBS->UninstallProtocolInterface (DeviceHandle,
- &gVirtioDeviceProtocolGuid, &Device->VirtioDevice);
+ Status = gBS->UninstallProtocolInterface (
+ DeviceHandle,
+ &gVirtioDeviceProtocolGuid,
+ &Device->VirtioDevice
+ );
if (EFI_ERROR (Status)) {
return Status;
}
VirtioPciUninit (Device);
- Device->PciIo->Attributes (Device->PciIo, EfiPciIoAttributeOperationSet,
- Device->OriginalPciAttributes, NULL);
-
- Status = gBS->CloseProtocol (DeviceHandle, &gEfiPciIoProtocolGuid,
- This->DriverBindingHandle, DeviceHandle);
+ Device->PciIo->Attributes (
+ Device->PciIo,
+ EfiPciIoAttributeOperationSet,
+ Device->OriginalPciAttributes,
+ NULL
+ );
+
+ Status = gBS->CloseProtocol (
+ DeviceHandle,
+ &gEfiPciIoProtocolGuid,
+ This->DriverBindingHandle,
+ DeviceHandle
+ );
FreePool (Device);
return Status;
}
-
//
// The static object that groups the Supported() (ie. probe), Start() and
// Stop() functions of the driver together. Refer to UEFI Spec 2.3.1 + Errata
// C, 10.1 EFI Driver Binding Protocol.
//
-STATIC EFI_DRIVER_BINDING_PROTOCOL gDriverBinding = {
+STATIC EFI_DRIVER_BINDING_PROTOCOL gDriverBinding = {
&VirtioPciDeviceBindingSupported,
&VirtioPciDeviceBindingStart,
&VirtioPciDeviceBindingStop,
@@ -596,7 +636,6 @@ STATIC EFI_DRIVER_BINDING_PROTOCOL gDriverBinding = {
NULL // DriverBindingHandle, ditto
};
-
//
// The purpose of the following scaffolding (EFI_COMPONENT_NAME_PROTOCOL and
// EFI_COMPONENT_NAME2_PROTOCOL implementation) is to format the driver's name
@@ -605,20 +644,20 @@ STATIC EFI_DRIVER_BINDING_PROTOCOL gDriverBinding = {
// Guide for UEFI 2.3.1 v1.01, 11 UEFI Driver and Controller Names.
//
STATIC
-EFI_UNICODE_STRING_TABLE mDriverNameTable[] = {
+EFI_UNICODE_STRING_TABLE mDriverNameTable[] = {
{ "eng;en", L"Virtio PCI Driver" },
- { NULL, NULL }
+ { NULL, NULL }
};
STATIC
-EFI_COMPONENT_NAME_PROTOCOL gComponentName;
+EFI_COMPONENT_NAME_PROTOCOL gComponentName;
EFI_STATUS
EFIAPI
VirtioPciGetDriverName (
- IN EFI_COMPONENT_NAME_PROTOCOL *This,
- IN CHAR8 *Language,
- OUT CHAR16 **DriverName
+ IN EFI_COMPONENT_NAME_PROTOCOL *This,
+ IN CHAR8 *Language,
+ OUT CHAR16 **DriverName
)
{
return LookupUnicodeString2 (
@@ -633,39 +672,38 @@ VirtioPciGetDriverName (
EFI_STATUS
EFIAPI
VirtioPciGetDeviceName (
- IN EFI_COMPONENT_NAME_PROTOCOL *This,
- IN EFI_HANDLE DeviceHandle,
- IN EFI_HANDLE ChildHandle,
- IN CHAR8 *Language,
- OUT CHAR16 **ControllerName
+ IN EFI_COMPONENT_NAME_PROTOCOL *This,
+ IN EFI_HANDLE DeviceHandle,
+ IN EFI_HANDLE ChildHandle,
+ IN CHAR8 *Language,
+ OUT CHAR16 **ControllerName
)
{
return EFI_UNSUPPORTED;
}
STATIC
-EFI_COMPONENT_NAME_PROTOCOL gComponentName = {
+EFI_COMPONENT_NAME_PROTOCOL gComponentName = {
&VirtioPciGetDriverName,
&VirtioPciGetDeviceName,
"eng" // SupportedLanguages, ISO 639-2 language codes
};
STATIC
-EFI_COMPONENT_NAME2_PROTOCOL gComponentName2 = {
- (EFI_COMPONENT_NAME2_GET_DRIVER_NAME) &VirtioPciGetDriverName,
- (EFI_COMPONENT_NAME2_GET_CONTROLLER_NAME) &VirtioPciGetDeviceName,
+EFI_COMPONENT_NAME2_PROTOCOL gComponentName2 = {
+ (EFI_COMPONENT_NAME2_GET_DRIVER_NAME)&VirtioPciGetDriverName,
+ (EFI_COMPONENT_NAME2_GET_CONTROLLER_NAME)&VirtioPciGetDeviceName,
"en" // SupportedLanguages, RFC 4646 language codes
};
-
//
// Entry point of this driver.
//
EFI_STATUS
EFIAPI
VirtioPciDeviceEntryPoint (
- IN EFI_HANDLE ImageHandle,
- IN EFI_SYSTEM_TABLE *SystemTable
+ IN EFI_HANDLE ImageHandle,
+ IN EFI_SYSTEM_TABLE *SystemTable
)
{
return EfiLibInstallDriverBindingComponentName2 (