diff options
Diffstat (limited to 'MdeModulePkg')
| -rw-r--r-- | MdeModulePkg/Include/Ppi/MemoryAttribute.h | 83 | ||||
| -rw-r--r-- | MdeModulePkg/MdeModulePkg.dec | 3 |
2 files changed, 86 insertions, 0 deletions
diff --git a/MdeModulePkg/Include/Ppi/MemoryAttribute.h b/MdeModulePkg/Include/Ppi/MemoryAttribute.h new file mode 100644 index 0000000000..83bcc33a76 --- /dev/null +++ b/MdeModulePkg/Include/Ppi/MemoryAttribute.h @@ -0,0 +1,83 @@ +/** @file
+
+Copyright (c) 2023, Google LLC. All rights reserved.<BR>
+
+SPDX-License-Identifier: BSD-2-Clause-Patent
+
+**/
+
+#ifndef EDKII_MEMORY_ATTRIBUTE_PPI_H_
+#define EDKII_MEMORY_ATTRIBUTE_PPI_H_
+
+#include <Uefi/UefiSpec.h>
+
+///
+/// Global ID for the EDKII_MEMORY_ATTRIBUTE_PPI.
+///
+#define EDKII_MEMORY_ATTRIBUTE_PPI_GUID \
+ { \
+ 0x1be840de, 0x2d92, 0x41ec, { 0xb6, 0xd3, 0x19, 0x64, 0x13, 0x50, 0x51, 0xfb } \
+ }
+
+///
+/// Forward declaration for the EDKII_MEMORY_ATTRIBUTE_PPI.
+///
+typedef struct _EDKII_MEMORY_ATTRIBUTE_PPI EDKII_MEMORY_ATTRIBUTE_PPI;
+
+/**
+ Set the requested memory permission attributes on a region of memory.
+
+ BaseAddress and Length must be aligned to EFI_PAGE_SIZE.
+
+ Attributes must contain a combination of EFI_MEMORY_RP, EFI_MEMORY_RO and
+ EFI_MEMORY_XP, and specifies the attributes that must be set for the
+ region in question. Attributes that are omitted will be cleared from the
+ region only if they are set in AttributeMask.
+
+ AttributeMask must contain a combination of EFI_MEMORY_RP, EFI_MEMORY_RO and
+ EFI_MEMORY_XP, and specifies the attributes that the call will operate on.
+ AttributeMask must not be 0x0, and must contain at least the bits set in
+ Attributes.
+
+ @param[in] This The protocol instance pointer.
+ @param[in] BaseAddress The physical address that is the start address
+ of a memory region.
+ @param[in] Length The size in bytes of the memory region.
+ @param[in] Attributes Memory attributes to set or clear.
+ @param[in] AttributeMask Mask of memory attributes to operate on.
+
+ @retval EFI_SUCCESS The attributes were set for the memory region.
+ @retval EFI_INVALID_PARAMETER Length is zero.
+ AttributeMask is zero.
+ AttributeMask lacks bits set in Attributes.
+ BaseAddress or Length is not suitably aligned.
+ @retval EFI_UNSUPPORTED The processor does not support one or more
+ bytes of the memory resource range specified
+ by BaseAddress and Length.
+ The bit mask of attributes is not supported for
+ the memory resource range specified by
+ BaseAddress and Length.
+ @retval EFI_OUT_OF_RESOURCES Requested attributes cannot be applied due to
+ lack of system resources.
+
+**/
+typedef
+EFI_STATUS
+(EFIAPI *EDKII_MEMORY_ATTRIBUTE_SET_PERMISSIONS)(
+ IN EDKII_MEMORY_ATTRIBUTE_PPI *This,
+ IN EFI_PHYSICAL_ADDRESS BaseAddress,
+ IN UINT64 Length,
+ IN UINT64 Attributes,
+ IN UINT64 AttributeMask
+ );
+
+///
+/// This PPI contains a set of services to manage memory permission attributes.
+///
+struct _EDKII_MEMORY_ATTRIBUTE_PPI {
+ EDKII_MEMORY_ATTRIBUTE_SET_PERMISSIONS SetPermissions;
+};
+
+extern EFI_GUID gEdkiiMemoryAttributePpiGuid;
+
+#endif
diff --git a/MdeModulePkg/MdeModulePkg.dec b/MdeModulePkg/MdeModulePkg.dec index 95dd077e19..d65dae18aa 100644 --- a/MdeModulePkg/MdeModulePkg.dec +++ b/MdeModulePkg/MdeModulePkg.dec @@ -528,6 +528,9 @@ gEdkiiPeiCapsuleOnDiskPpiGuid = { 0x71a9ea61, 0x5a35, 0x4a5d, { 0xac, 0xef, 0x9c, 0xf8, 0x6d, 0x6d, 0x67, 0xe0 } }
gEdkiiPeiBootInCapsuleOnDiskModePpiGuid = { 0xb08a11e4, 0xe2b7, 0x4b75, { 0xb5, 0x15, 0xaf, 0x61, 0x6, 0x68, 0xbf, 0xd1 } }
+ ## Include/Ppi/MemoryAttribute.h
+ gEdkiiMemoryAttributePpiGuid = { 0x1be840de, 0x2d92, 0x41ec, { 0xb6, 0xd3, 0x19, 0x64, 0x13, 0x50, 0x51, 0xfb } }
+
[Protocols]
## Load File protocol provides capability to load and unload EFI image into memory and execute it.
# Include/Protocol/LoadPe32Image.h
|