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Diffstat (limited to 'MdePkg/Include/Library/SmmIoLib.h')
-rw-r--r-- | MdePkg/Include/Library/SmmIoLib.h | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/MdePkg/Include/Library/SmmIoLib.h b/MdePkg/Include/Library/SmmIoLib.h new file mode 100644 index 000000000000..49b45f8890a8 --- /dev/null +++ b/MdePkg/Include/Library/SmmIoLib.h @@ -0,0 +1,36 @@ +/** @file + Provides services for SMM IO Operation. + + The SMM IO Library provides function for checking if IO resource is accessible inside of SMM. + + Copyright (c) 2017, Intel Corporation. All rights reserved.<BR> + SPDX-License-Identifier: BSD-2-Clause-Patent + +**/ + +#ifndef _SMM_IO_LIB_H_ +#define _SMM_IO_LIB_H_ + +/** + This function check if the MMIO resource is valid per processor architecture and + valid per platform design. + + @param BaseAddress The MMIO start address to be checked. + @param Length The MMIO length to be checked. + @param Owner A GUID representing the owner of the resource. + This GUID may be used by producer to correlate the device ownership of the resource. + NULL means no specific owner. + + @retval TRUE This MMIO resource is valid per processor architecture and valid per platform design. + @retval FALSE This MMIO resource is not valid per processor architecture or valid per platform design. +**/ +BOOLEAN +EFIAPI +SmmIsMmioValid ( + IN EFI_PHYSICAL_ADDRESS BaseAddress, + IN UINT64 Length, + IN EFI_GUID *Owner OPTIONAL + ); + +#endif + |