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c09d9571 | 1 | /** @file\r |
61ac4fc7 | 2 | Base Debug library instance for hypervisor debug port.\r |
c09d9571 PB |
3 | It uses PrintLib to send debug messages to a fixed I/O port.\r |
4 | \r | |
5 | Copyright (c) 2017, Red Hat, Inc.<BR>\r | |
b26f0cf9 | 6 | SPDX-License-Identifier: BSD-2-Clause-Patent\r |
c09d9571 PB |
7 | \r |
8 | **/\r | |
9 | \r | |
10 | #ifndef __DEBUG_IO_PORT_DETECT_H__\r | |
11 | #define __DEBUG_IO_PORT_DETECT_H__\r | |
12 | \r | |
13 | #include <Base.h>\r | |
14 | \r | |
15 | //\r | |
16 | // The constant value that is read from the debug I/O port\r | |
17 | //\r | |
18 | #define BOCHS_DEBUG_PORT_MAGIC 0xE9\r | |
19 | \r | |
20 | \r | |
21 | /**\r | |
22 | Helper function to return whether the virtual machine has a debug I/O port.\r | |
23 | PlatformDebugLibIoPortFound can call this function directly or cache the\r | |
24 | result.\r | |
25 | \r | |
26 | @retval TRUE if the debug I/O port device was detected.\r | |
27 | @retval FALSE otherwise\r | |
28 | \r | |
29 | **/\r | |
30 | BOOLEAN\r | |
31 | EFIAPI\r | |
32 | PlatformDebugLibIoPortDetect (\r | |
33 | VOID\r | |
34 | );\r | |
35 | \r | |
36 | /**\r | |
37 | Return whether the virtual machine has a debug I/O port. DebugLib.c\r | |
38 | calls this function instead of PlatformDebugLibIoPortDetect, to allow\r | |
39 | caching if possible.\r | |
40 | \r | |
41 | @retval TRUE if the debug I/O port device was detected.\r | |
42 | @retval FALSE otherwise\r | |
43 | \r | |
44 | **/\r | |
45 | BOOLEAN\r | |
46 | EFIAPI\r | |
47 | PlatformDebugLibIoPortFound (\r | |
48 | VOID\r | |
49 | );\r | |
50 | \r | |
51 | #endif\r |