blob: 5adbddc6d345730ea33b31fe6e8d18cfc89af37d (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
|
/** @file
Null implemmentation of the ArmCcaLib library.
Copyright (c) 2022 - 2023, Arm Limited. All rights reserved.<BR>
SPDX-License-Identifier: BSD-2-Clause-Patent
@par Glossary:
- Rsi or RSI - Realm Service Interface
- IPA - Intermediate Physical Address
- RIPAS - Realm IPA state
**/
#include <Base.h>
/**
Check if running in a Realm.
@retval TRUE The execution is within the context of a Realm.
@retval FALSE The execution is not within the context of a Realm.
**/
BOOLEAN
EFIAPI
ArmCcaIsRealm (
VOID
)
{
return FALSE;
}
/**
Return the IPA width of the Realm.
The IPA width of the Realm is used to configure the protection attribute
for memory regions, see ArmCcaSetMemoryProtectionAttribute().
@param [out] IpaWidth IPA width of the Realm.
@retval RETURN_SUCCESS Success.
@retval RETURN_INVALID_PARAMETER A parameter is invalid.
@retval RETURN_UNSUPPORTED The execution is not within the
context of a Realm.
**/
RETURN_STATUS
EFIAPI
ArmCcaGetIpaWidth (
OUT UINT64 *IpaWidth
)
{
return RETURN_UNSUPPORTED;
}
/** Check if the address range is protected MMIO
@param [in] BaseAddress Base address of the device MMIO region.
@param [in] Length Length of the device MMIO region.
@param [out] IsProtectedMmio TRUE - if the RIPAS for the address range is
protected MMIO.
FALSE - if the RIPAS for the address range is
not protected MMIO.
@retval RETURN_SUCCESS Success.
@retval RETURN_INVALID_PARAMETER A parameter is invalid.
@retval RETURN_UNSUPPORTED The request is not initiated in a
Realm.
**/
RETURN_STATUS
EFIAPI
ArmCcaMemRangeIsProtectedMmio (
IN UINT64 BaseAddress,
IN UINT64 Length,
OUT BOOLEAN *IsProtectedMmio
)
{
return RETURN_UNSUPPORTED;
}
|
