diff options
Diffstat (limited to 'UefiCpuPkg/PiSmmCpuDxeSmm/SmmCpuMemoryManagement.c')
| -rw-r--r-- | UefiCpuPkg/PiSmmCpuDxeSmm/SmmCpuMemoryManagement.c | 326 |
1 files changed, 163 insertions, 163 deletions
diff --git a/UefiCpuPkg/PiSmmCpuDxeSmm/SmmCpuMemoryManagement.c b/UefiCpuPkg/PiSmmCpuDxeSmm/SmmCpuMemoryManagement.c index 55c04c7..2d7dba5 100644 --- a/UefiCpuPkg/PiSmmCpuDxeSmm/SmmCpuMemoryManagement.c +++ b/UefiCpuPkg/PiSmmCpuDxeSmm/SmmCpuMemoryManagement.c @@ -1120,166 +1120,166 @@ IsSmmCommBufferForbiddenAddress ( }
return FALSE;
}
- -/** - This function set given attributes of the memory region specified by - BaseAddress and Length. - - @param This The EDKII_SMM_MEMORY_ATTRIBUTE_PROTOCOL instance. - @param BaseAddress The physical address that is the start address of - a memory region. - @param Length The size in bytes of the memory region. - @param Attributes The bit mask of attributes to set for the memory - region. - - @retval EFI_SUCCESS The attributes were set for the memory region. - @retval EFI_INVALID_PARAMETER Length is zero. - Attributes specified an illegal combination of - attributes that cannot be set together. - @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 support for - the memory resource range specified by - BaseAddress and Length. - -**/ -EFI_STATUS -EFIAPI -EdkiiSmmSetMemoryAttributes ( - IN EDKII_SMM_MEMORY_ATTRIBUTE_PROTOCOL *This, - IN EFI_PHYSICAL_ADDRESS BaseAddress, - IN UINT64 Length, - IN UINT64 Attributes - ) -{ - return SmmSetMemoryAttributes (BaseAddress, Length, Attributes); -} - -/** - This function clears given attributes of the memory region specified by - BaseAddress and Length. - - @param This The EDKII_SMM_MEMORY_ATTRIBUTE_PROTOCOL instance. - @param BaseAddress The physical address that is the start address of - a memory region. - @param Length The size in bytes of the memory region. - @param Attributes The bit mask of attributes to set for the memory - region. - - @retval EFI_SUCCESS The attributes were set for the memory region. - @retval EFI_INVALID_PARAMETER Length is zero. - Attributes specified an illegal combination of - attributes that cannot be set together. - @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 support for - the memory resource range specified by - BaseAddress and Length. - -**/ -EFI_STATUS -EFIAPI -EdkiiSmmClearMemoryAttributes ( - IN EDKII_SMM_MEMORY_ATTRIBUTE_PROTOCOL *This, - IN EFI_PHYSICAL_ADDRESS BaseAddress, - IN UINT64 Length, - IN UINT64 Attributes - ) -{ - return SmmClearMemoryAttributes (BaseAddress, Length, Attributes); -} - -/** - This function retrieve the attributes of the memory region specified by - BaseAddress and Length. If different attributes are got from different part - of the memory region, EFI_NO_MAPPING will be returned. - - @param This The EDKII_SMM_MEMORY_ATTRIBUTE_PROTOCOL instance. - @param BaseAddress The physical address that is the start address of - a memory region. - @param Length The size in bytes of the memory region. - @param Attributes Pointer to attributes returned. - - @retval EFI_SUCCESS The attributes got for the memory region. - @retval EFI_INVALID_PARAMETER Length is zero. - Attributes is NULL. - @retval EFI_NO_MAPPING Attributes are not consistent cross the memory - region. - @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 support for - the memory resource range specified by - BaseAddress and Length. - -**/ -EFI_STATUS -EFIAPI -EdkiiSmmGetMemoryAttributes ( - IN EDKII_SMM_MEMORY_ATTRIBUTE_PROTOCOL *This, - IN EFI_PHYSICAL_ADDRESS BaseAddress, - IN UINT64 Length, - OUT UINT64 *Attributes - ) -{ - EFI_PHYSICAL_ADDRESS Address; - UINT64 *PageEntry; - UINT64 MemAttr; - PAGE_ATTRIBUTE PageAttr; - INT64 Size; - - if (Length < SIZE_4KB || Attributes == NULL) { - return EFI_INVALID_PARAMETER; - } - - Size = (INT64)Length; - MemAttr = (UINT64)-1; - - do { - - PageEntry = GetPageTableEntry (BaseAddress, &PageAttr); - if (PageEntry == NULL || PageAttr == PageNone) { - return EFI_UNSUPPORTED; - } - - // - // If the memory range is cross page table boundary, make sure they - // share the same attribute. Return EFI_NO_MAPPING if not. - // - *Attributes = GetAttributesFromPageEntry (PageEntry); - if (MemAttr != (UINT64)-1 && *Attributes != MemAttr) { - return EFI_NO_MAPPING; - } - - switch (PageAttr) { - case Page4K: - Address = *PageEntry & ~mAddressEncMask & PAGING_4K_ADDRESS_MASK_64; - Size -= (SIZE_4KB - (BaseAddress - Address)); - BaseAddress += (SIZE_4KB - (BaseAddress - Address)); - break; - - case Page2M: - Address = *PageEntry & ~mAddressEncMask & PAGING_2M_ADDRESS_MASK_64; - Size -= SIZE_2MB - (BaseAddress - Address); - BaseAddress += SIZE_2MB - (BaseAddress - Address); - break; - - case Page1G: - Address = *PageEntry & ~mAddressEncMask & PAGING_1G_ADDRESS_MASK_64; - Size -= SIZE_1GB - (BaseAddress - Address); - BaseAddress += SIZE_1GB - (BaseAddress - Address); - break; - - default: - return EFI_UNSUPPORTED; - } - - MemAttr = *Attributes; - - } while (Size > 0); - - return EFI_SUCCESS; -} - +
+/**
+ This function set given attributes of the memory region specified by
+ BaseAddress and Length.
+
+ @param This The EDKII_SMM_MEMORY_ATTRIBUTE_PROTOCOL instance.
+ @param BaseAddress The physical address that is the start address of
+ a memory region.
+ @param Length The size in bytes of the memory region.
+ @param Attributes The bit mask of attributes to set for the memory
+ region.
+
+ @retval EFI_SUCCESS The attributes were set for the memory region.
+ @retval EFI_INVALID_PARAMETER Length is zero.
+ Attributes specified an illegal combination of
+ attributes that cannot be set together.
+ @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 support for
+ the memory resource range specified by
+ BaseAddress and Length.
+
+**/
+EFI_STATUS
+EFIAPI
+EdkiiSmmSetMemoryAttributes (
+ IN EDKII_SMM_MEMORY_ATTRIBUTE_PROTOCOL *This,
+ IN EFI_PHYSICAL_ADDRESS BaseAddress,
+ IN UINT64 Length,
+ IN UINT64 Attributes
+ )
+{
+ return SmmSetMemoryAttributes (BaseAddress, Length, Attributes);
+}
+
+/**
+ This function clears given attributes of the memory region specified by
+ BaseAddress and Length.
+
+ @param This The EDKII_SMM_MEMORY_ATTRIBUTE_PROTOCOL instance.
+ @param BaseAddress The physical address that is the start address of
+ a memory region.
+ @param Length The size in bytes of the memory region.
+ @param Attributes The bit mask of attributes to set for the memory
+ region.
+
+ @retval EFI_SUCCESS The attributes were set for the memory region.
+ @retval EFI_INVALID_PARAMETER Length is zero.
+ Attributes specified an illegal combination of
+ attributes that cannot be set together.
+ @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 support for
+ the memory resource range specified by
+ BaseAddress and Length.
+
+**/
+EFI_STATUS
+EFIAPI
+EdkiiSmmClearMemoryAttributes (
+ IN EDKII_SMM_MEMORY_ATTRIBUTE_PROTOCOL *This,
+ IN EFI_PHYSICAL_ADDRESS BaseAddress,
+ IN UINT64 Length,
+ IN UINT64 Attributes
+ )
+{
+ return SmmClearMemoryAttributes (BaseAddress, Length, Attributes);
+}
+
+/**
+ This function retrieve the attributes of the memory region specified by
+ BaseAddress and Length. If different attributes are got from different part
+ of the memory region, EFI_NO_MAPPING will be returned.
+
+ @param This The EDKII_SMM_MEMORY_ATTRIBUTE_PROTOCOL instance.
+ @param BaseAddress The physical address that is the start address of
+ a memory region.
+ @param Length The size in bytes of the memory region.
+ @param Attributes Pointer to attributes returned.
+
+ @retval EFI_SUCCESS The attributes got for the memory region.
+ @retval EFI_INVALID_PARAMETER Length is zero.
+ Attributes is NULL.
+ @retval EFI_NO_MAPPING Attributes are not consistent cross the memory
+ region.
+ @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 support for
+ the memory resource range specified by
+ BaseAddress and Length.
+
+**/
+EFI_STATUS
+EFIAPI
+EdkiiSmmGetMemoryAttributes (
+ IN EDKII_SMM_MEMORY_ATTRIBUTE_PROTOCOL *This,
+ IN EFI_PHYSICAL_ADDRESS BaseAddress,
+ IN UINT64 Length,
+ OUT UINT64 *Attributes
+ )
+{
+ EFI_PHYSICAL_ADDRESS Address;
+ UINT64 *PageEntry;
+ UINT64 MemAttr;
+ PAGE_ATTRIBUTE PageAttr;
+ INT64 Size;
+
+ if (Length < SIZE_4KB || Attributes == NULL) {
+ return EFI_INVALID_PARAMETER;
+ }
+
+ Size = (INT64)Length;
+ MemAttr = (UINT64)-1;
+
+ do {
+
+ PageEntry = GetPageTableEntry (BaseAddress, &PageAttr);
+ if (PageEntry == NULL || PageAttr == PageNone) {
+ return EFI_UNSUPPORTED;
+ }
+
+ //
+ // If the memory range is cross page table boundary, make sure they
+ // share the same attribute. Return EFI_NO_MAPPING if not.
+ //
+ *Attributes = GetAttributesFromPageEntry (PageEntry);
+ if (MemAttr != (UINT64)-1 && *Attributes != MemAttr) {
+ return EFI_NO_MAPPING;
+ }
+
+ switch (PageAttr) {
+ case Page4K:
+ Address = *PageEntry & ~mAddressEncMask & PAGING_4K_ADDRESS_MASK_64;
+ Size -= (SIZE_4KB - (BaseAddress - Address));
+ BaseAddress += (SIZE_4KB - (BaseAddress - Address));
+ break;
+
+ case Page2M:
+ Address = *PageEntry & ~mAddressEncMask & PAGING_2M_ADDRESS_MASK_64;
+ Size -= SIZE_2MB - (BaseAddress - Address);
+ BaseAddress += SIZE_2MB - (BaseAddress - Address);
+ break;
+
+ case Page1G:
+ Address = *PageEntry & ~mAddressEncMask & PAGING_1G_ADDRESS_MASK_64;
+ Size -= SIZE_1GB - (BaseAddress - Address);
+ BaseAddress += SIZE_1GB - (BaseAddress - Address);
+ break;
+
+ default:
+ return EFI_UNSUPPORTED;
+ }
+
+ MemAttr = *Attributes;
+
+ } while (Size > 0);
+
+ return EFI_SUCCESS;
+}
+
|