| /** @file | |
| Copyright (c) 2021, Intel Corporation. All rights reserved.<BR> | |
| SPDX-License-Identifier: BSD-2-Clause-Patent | |
| **/ | |
| #include <Library/BaseLib.h> | |
| #include "BaseIoLibIntrinsicInternal.h" | |
| #include "IoLibTdx.h" | |
| /** | |
| Check if it is Tdx guest. | |
| @return TRUE It is Tdx guest | |
| @return FALSE It is not Tdx guest | |
| **/ | |
| BOOLEAN | |
| EFIAPI | |
| IsTdxGuest ( | |
| VOID | |
| ) | |
| { | |
| return FALSE; | |
| } | |
| /** | |
| Reads an 8-bit I/O port. | |
| TDVMCALL_IO is invoked to read I/O port. | |
| @param Port The I/O port to read. | |
| @return The value read. | |
| **/ | |
| UINT8 | |
| EFIAPI | |
| TdIoRead8 ( | |
| IN UINTN Port | |
| ) | |
| { | |
| ASSERT (FALSE); | |
| return 0; | |
| } | |
| /** | |
| Reads a 16-bit I/O port. | |
| TDVMCALL_IO is invoked to write I/O port. | |
| @param Port The I/O port to read. | |
| @return The value read. | |
| **/ | |
| UINT16 | |
| EFIAPI | |
| TdIoRead16 ( | |
| IN UINTN Port | |
| ) | |
| { | |
| ASSERT (FALSE); | |
| return 0; | |
| } | |
| /** | |
| Reads a 32-bit I/O port. | |
| TDVMCALL_IO is invoked to read I/O port. | |
| @param Port The I/O port to read. | |
| @return The value read. | |
| **/ | |
| UINT32 | |
| EFIAPI | |
| TdIoRead32 ( | |
| IN UINTN Port | |
| ) | |
| { | |
| ASSERT (FALSE); | |
| return 0; | |
| } | |
| /** | |
| Writes an 8-bit I/O port. | |
| TDVMCALL_IO is invoked to write I/O port. | |
| @param Port The I/O port to write. | |
| @param Value The value to write to the I/O port. | |
| @return The value written the I/O port. | |
| **/ | |
| UINT8 | |
| EFIAPI | |
| TdIoWrite8 ( | |
| IN UINTN Port, | |
| IN UINT8 Value | |
| ) | |
| { | |
| ASSERT (FALSE); | |
| return 0; | |
| } | |
| /** | |
| Writes a 16-bit I/O port. | |
| TDVMCALL_IO is invoked to write I/O port. | |
| @param Port The I/O port to write. | |
| @param Value The value to write to the I/O port. | |
| @return The value written the I/O port. | |
| **/ | |
| UINT16 | |
| EFIAPI | |
| TdIoWrite16 ( | |
| IN UINTN Port, | |
| IN UINT16 Value | |
| ) | |
| { | |
| ASSERT (FALSE); | |
| return 0; | |
| } | |
| /** | |
| Writes a 32-bit I/O port. | |
| TDVMCALL_IO is invoked to write I/O port. | |
| @param Port The I/O port to write. | |
| @param Value The value to write to the I/O port. | |
| @return The value written the I/O port. | |
| **/ | |
| UINT32 | |
| EFIAPI | |
| TdIoWrite32 ( | |
| IN UINTN Port, | |
| IN UINT32 Value | |
| ) | |
| { | |
| ASSERT (FALSE); | |
| return 0; | |
| } | |
| /** | |
| Reads an 8-bit MMIO register. | |
| TDVMCALL_MMIO is invoked to read MMIO registers. | |
| @param Address The MMIO register to read. | |
| @return The value read. | |
| **/ | |
| UINT8 | |
| EFIAPI | |
| TdMmioRead8 ( | |
| IN UINTN Address | |
| ) | |
| { | |
| ASSERT (FALSE); | |
| return 0; | |
| } | |
| /** | |
| Writes an 8-bit MMIO register. | |
| TDVMCALL_MMIO is invoked to read write registers. | |
| @param Address The MMIO register to write. | |
| @param Value The value to write to the MMIO register. | |
| @return Value. | |
| **/ | |
| UINT8 | |
| EFIAPI | |
| TdMmioWrite8 ( | |
| IN UINTN Address, | |
| IN UINT8 Val | |
| ) | |
| { | |
| ASSERT (FALSE); | |
| return 0; | |
| } | |
| /** | |
| Reads a 16-bit MMIO register. | |
| TDVMCALL_MMIO is invoked to read MMIO registers. | |
| @param Address The MMIO register to read. | |
| @return The value read. | |
| **/ | |
| UINT16 | |
| EFIAPI | |
| TdMmioRead16 ( | |
| IN UINTN Address | |
| ) | |
| { | |
| ASSERT (FALSE); | |
| return 0; | |
| } | |
| /** | |
| Writes a 16-bit MMIO register. | |
| TDVMCALL_MMIO is invoked to write MMIO registers. | |
| @param Address The MMIO register to write. | |
| @param Value The value to write to the MMIO register. | |
| @return Value. | |
| **/ | |
| UINT16 | |
| EFIAPI | |
| TdMmioWrite16 ( | |
| IN UINTN Address, | |
| IN UINT16 Val | |
| ) | |
| { | |
| ASSERT (FALSE); | |
| return 0; | |
| } | |
| /** | |
| Reads a 32-bit MMIO register. | |
| TDVMCALL_MMIO is invoked to read MMIO registers. | |
| @param Address The MMIO register to read. | |
| @return The value read. | |
| **/ | |
| UINT32 | |
| EFIAPI | |
| TdMmioRead32 ( | |
| IN UINTN Address | |
| ) | |
| { | |
| ASSERT (FALSE); | |
| return 0; | |
| } | |
| /** | |
| Writes a 32-bit MMIO register. | |
| TDVMCALL_MMIO is invoked to write MMIO registers. | |
| @param Address The MMIO register to write. | |
| @param Value The value to write to the MMIO register. | |
| @return Value. | |
| **/ | |
| UINT32 | |
| EFIAPI | |
| TdMmioWrite32 ( | |
| IN UINTN Address, | |
| IN UINT32 Val | |
| ) | |
| { | |
| ASSERT (FALSE); | |
| return 0; | |
| } | |
| /** | |
| Reads a 64-bit MMIO register. | |
| TDVMCALL_MMIO is invoked to read MMIO registers. | |
| @param Address The MMIO register to read. | |
| @return The value read. | |
| **/ | |
| UINT64 | |
| EFIAPI | |
| TdMmioRead64 ( | |
| IN UINTN Address | |
| ) | |
| { | |
| ASSERT (FALSE); | |
| return 0; | |
| } | |
| /** | |
| Writes a 64-bit MMIO register. | |
| TDVMCALL_MMIO is invoked to write MMIO registers. | |
| @param Address The MMIO register to write. | |
| @param Value The value to write to the MMIO register. | |
| **/ | |
| UINT64 | |
| EFIAPI | |
| TdMmioWrite64 ( | |
| IN UINTN Address, | |
| IN UINT64 Value | |
| ) | |
| { | |
| ASSERT (FALSE); | |
| return 0; | |
| } | |
| /** | |
| Reads an 8-bit I/O port fifo into a block of memory. | |
| Reads the 8-bit I/O fifo port specified by Port. | |
| The port is read Count times, and the read data is | |
| stored in the provided Buffer. | |
| This function must guarantee that all I/O read and write operations are | |
| serialized. | |
| If 8-bit I/O port operations are not supported, then ASSERT(). | |
| In TDX a serial of TdIoRead8 is invoked to read the I/O port fifo. | |
| @param Port The I/O port to read. | |
| @param Count The number of times to read I/O port. | |
| @param Buffer The buffer to store the read data into. | |
| **/ | |
| VOID | |
| EFIAPI | |
| TdIoReadFifo8 ( | |
| IN UINTN Port, | |
| IN UINTN Count, | |
| OUT VOID *Buffer | |
| ) | |
| { | |
| ASSERT (FALSE); | |
| } | |
| /** | |
| Writes a block of memory into an 8-bit I/O port fifo. | |
| Writes the 8-bit I/O fifo port specified by Port. | |
| The port is written Count times, and the write data is | |
| retrieved from the provided Buffer. | |
| This function must guarantee that all I/O write and write operations are | |
| serialized. | |
| If 8-bit I/O port operations are not supported, then ASSERT(). | |
| In TDX a serial of TdIoWrite8 is invoked to write data to the I/O port. | |
| @param Port The I/O port to write. | |
| @param Count The number of times to write I/O port. | |
| @param Buffer The buffer to retrieve the write data from. | |
| **/ | |
| VOID | |
| EFIAPI | |
| TdIoWriteFifo8 ( | |
| IN UINTN Port, | |
| IN UINTN Count, | |
| IN VOID *Buffer | |
| ) | |
| { | |
| ASSERT (FALSE); | |
| } | |
| /** | |
| Reads a 16-bit I/O port fifo into a block of memory. | |
| Reads the 16-bit I/O fifo port specified by Port. | |
| The port is read Count times, and the read data is | |
| stored in the provided Buffer. | |
| This function must guarantee that all I/O read and write operations are | |
| serialized. | |
| If 16-bit I/O port operations are not supported, then ASSERT(). | |
| In TDX a serial of TdIoRead16 is invoked to read data from the I/O port. | |
| @param Port The I/O port to read. | |
| @param Count The number of times to read I/O port. | |
| @param Buffer The buffer to store the read data into. | |
| **/ | |
| VOID | |
| EFIAPI | |
| TdIoReadFifo16 ( | |
| IN UINTN Port, | |
| IN UINTN Count, | |
| OUT VOID *Buffer | |
| ) | |
| { | |
| ASSERT (FALSE); | |
| } | |
| /** | |
| Writes a block of memory into a 16-bit I/O port fifo. | |
| Writes the 16-bit I/O fifo port specified by Port. | |
| The port is written Count times, and the write data is | |
| retrieved from the provided Buffer. | |
| This function must guarantee that all I/O write and write operations are | |
| serialized. | |
| If 16-bit I/O port operations are not supported, then ASSERT(). | |
| In TDX a serial of TdIoWrite16 is invoked to write data to the I/O port. | |
| @param Port The I/O port to write. | |
| @param Count The number of times to write I/O port. | |
| @param Buffer The buffer to retrieve the write data from. | |
| **/ | |
| VOID | |
| EFIAPI | |
| TdIoWriteFifo16 ( | |
| IN UINTN Port, | |
| IN UINTN Count, | |
| IN VOID *Buffer | |
| ) | |
| { | |
| ASSERT (FALSE); | |
| } | |
| /** | |
| Reads a 32-bit I/O port fifo into a block of memory. | |
| Reads the 32-bit I/O fifo port specified by Port. | |
| The port is read Count times, and the read data is | |
| stored in the provided Buffer. | |
| This function must guarantee that all I/O read and write operations are | |
| serialized. | |
| If 32-bit I/O port operations are not supported, then ASSERT(). | |
| In TDX a serial of TdIoRead32 is invoked to read data from the I/O port. | |
| @param Port The I/O port to read. | |
| @param Count The number of times to read I/O port. | |
| @param Buffer The buffer to store the read data into. | |
| **/ | |
| VOID | |
| EFIAPI | |
| TdIoReadFifo32 ( | |
| IN UINTN Port, | |
| IN UINTN Count, | |
| OUT VOID *Buffer | |
| ) | |
| { | |
| ASSERT (FALSE); | |
| } | |
| /** | |
| Writes a block of memory into a 32-bit I/O port fifo. | |
| Writes the 32-bit I/O fifo port specified by Port. | |
| The port is written Count times, and the write data is | |
| retrieved from the provided Buffer. | |
| This function must guarantee that all I/O write and write operations are | |
| serialized. | |
| If 32-bit I/O port operations are not supported, then ASSERT(). | |
| In TDX a serial of TdIoWrite32 is invoked to write data to the I/O port. | |
| @param Port The I/O port to write. | |
| @param Count The number of times to write I/O port. | |
| @param Buffer The buffer to retrieve the write data from. | |
| **/ | |
| VOID | |
| EFIAPI | |
| TdIoWriteFifo32 ( | |
| IN UINTN Port, | |
| IN UINTN Count, | |
| IN VOID *Buffer | |
| ) | |
| { | |
| ASSERT (FALSE); | |
| } |