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61 lines
1.6 KiB
C
61 lines
1.6 KiB
C
/** @file
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Definitions for the VirtIo MMIO Device Library
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Copyright (C) 2013, ARM Ltd
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SPDX-License-Identifier: BSD-2-Clause-Patent
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**/
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#ifndef _VIRTIO_MMIO_DEVICE_LIB_H_
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#define _VIRTIO_MMIO_DEVICE_LIB_H_
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/**
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Initialize VirtIo Device and Install VIRTIO_DEVICE_PROTOCOL protocol
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@param[in] BaseAddress Base Address of the VirtIo MMIO Device
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@param[in] Handle Handle of the device the driver should be attached
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to.
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@retval EFI_SUCCESS The VirtIo Device has been installed
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successfully.
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@retval EFI_OUT_OF_RESOURCES The function failed to allocate memory required
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by the Virtio MMIO device initialization.
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@retval EFI_UNSUPPORTED BaseAddress does not point to a VirtIo MMIO
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device.
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@return Status code returned by InstallProtocolInterface
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Boot Service function.
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**/
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EFI_STATUS
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VirtioMmioInstallDevice (
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IN PHYSICAL_ADDRESS BaseAddress,
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IN EFI_HANDLE Handle
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);
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/**
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Uninstall the VirtIo Device
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@param[in] Handle Handle of the device where the VirtIo Device protocol
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should have been installed.
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@retval EFI_SUCCESS The device has been un-initialized successfully.
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@return Status code returned by UninstallProtocolInterface
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Boot Service function.
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**/
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EFI_STATUS
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VirtioMmioUninstallDevice (
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IN EFI_HANDLE Handle
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);
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#endif // _VIRTIO_MMIO_DEVICE_LIB_H_
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