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OvmfPkg/MemEncryptSevLib: clean up MemEncryptSevSetPageEncMask() decl 

The declaration and the definition(s) of the function should have
identical leading comments and/or identical parameter lists. Replace any
leftover "clear" references to the C-bit with "set" references. Also
remove any excess space in the comment block, and unindent the trailing
"**/" if necessary. Correct several parameter references.

Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Cc: Brijesh Singh <brijesh.singh@amd.com>
Cc: Jordan Justen <jordan.l.justen@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Tested-by: Brijesh Singh <brijesh.singh@amd.com>
Reviewed-by: Brijesh Singh <brijesh.singh@amd.com>
This commit is contained in:
Laszlo Ersek 2018-03-01 14:41:01 +01:00
parent 5b5028e67b
commit 154dcd6c58
3 changed files with 41 additions and 40 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

16
OvmfPkg/Include/Library/MemEncryptSevLib.h
View File

@ -61,27 +61,29 @@ MemEncryptSevClearPageEncMask (
/** /**
This function sets memory encryption bit for the memory region specified by This function sets memory encryption bit for the memory region specified by
BaseAddress and Number of pages from the current page table context. BaseAddress and NumPages from the current page table context.
@param[in] Cr3BaseAddress Cr3 Base Address (if zero then use
current CR3)
@param[in] BaseAddress The physical address that is the start @param[in] BaseAddress The physical address that is the start
address of a memory region. address of a memory region.
@param[in] NumberOfPages The number of pages from start memory @param[in] NumPages The number of pages from start memory
region. region.
@param[in] Flush Flush the caches before clearing the bit @param[in] Flush Flush the caches before setting the bit
(mostly TRUE except MMIO addresses) (mostly TRUE except MMIO addresses)
@retval RETURN_SUCCESS The attributes were set for the memory @retval RETURN_SUCCESS The attributes were set for the memory
region. region.
@retval RETURN_INVALID_PARAMETER Number of pages is zero. @retval RETURN_INVALID_PARAMETER Number of pages is zero.
@retval RETURN_UNSUPPORTED Clearing memory encryption attribute is not @retval RETURN_UNSUPPORTED Setting the memory encryption attribute
supported is not supported
**/ **/
RETURN_STATUS RETURN_STATUS
EFIAPI EFIAPI
MemEncryptSevSetPageEncMask ( MemEncryptSevSetPageEncMask (
IN PHYSICAL_ADDRESS Cr3BaseAddress, IN PHYSICAL_ADDRESS Cr3BaseAddress,
IN PHYSICAL_ADDRESS BaseAddress, IN PHYSICAL_ADDRESS BaseAddress,
IN UINTN NumberOfPages, IN UINTN NumPages,
IN BOOLEAN CacheFlush IN BOOLEAN Flush
); );
#endif // _MEM_ENCRYPT_SEV_LIB_H_ #endif // _MEM_ENCRYPT_SEV_LIB_H_

16
OvmfPkg/Library/BaseMemEncryptSevLib/Ia32/MemEncryptSevLib.c
View File

@ -57,29 +57,29 @@ MemEncryptSevClearPageEncMask (
/** /**
This function sets memory encryption bit for the memory region specified by This function sets memory encryption bit for the memory region specified by
BaseAddress and Number of pages from the current page table context. BaseAddress and NumPages from the current page table context.
@param[in] Cr3BaseAddress Cr3 Base Address (if zero then use current @param[in] Cr3BaseAddress Cr3 Base Address (if zero then use
CR3) current CR3)
@param[in] BaseAddress The physical address that is the start @param[in] BaseAddress The physical address that is the start
address of a memory region. address of a memory region.
@param[in] NumberOfPages The number of pages from start memory @param[in] NumPages The number of pages from start memory
region. region.
@param[in] Flush Flush the caches before clearing the bit @param[in] Flush Flush the caches before setting the bit
(mostly TRUE except MMIO addresses) (mostly TRUE except MMIO addresses)
@retval RETURN_SUCCESS The attributes were set for the memory @retval RETURN_SUCCESS The attributes were set for the memory
region. region.
@retval RETURN_INVALID_PARAMETER Number of pages is zero. @retval RETURN_INVALID_PARAMETER Number of pages is zero.
@retval RETURN_UNSUPPORTED Clearing memory encryption attribute is not @retval RETURN_UNSUPPORTED Setting the memory encryption attribute
supported is not supported
**/ **/
RETURN_STATUS RETURN_STATUS
EFIAPI EFIAPI
MemEncryptSevSetPageEncMask ( MemEncryptSevSetPageEncMask (
IN PHYSICAL_ADDRESS Cr3BaseAddress, IN PHYSICAL_ADDRESS Cr3BaseAddress,
IN PHYSICAL_ADDRESS BaseAddress, IN PHYSICAL_ADDRESS BaseAddress,
IN UINTN NumberOfPages, IN UINTN NumPages,
IN BOOLEAN Flush IN BOOLEAN Flush
) )
{ {

15
OvmfPkg/Library/BaseMemEncryptSevLib/X64/MemEncryptSevLib.c
View File

@ -60,23 +60,22 @@ MemEncryptSevClearPageEncMask (
} }
/** /**
This function sets memory encryption bit for the memory region specified by
This function clears memory encryption bit for the memory region specified by BaseAddress and NumPages from the current page table context.
BaseAddress and Number of pages from the current page table context.
@param[in] Cr3BaseAddress Cr3 Base Address (if zero then use @param[in] Cr3BaseAddress Cr3 Base Address (if zero then use
current CR3) current CR3)
@param[in] BaseAddress The physical address that is the start @param[in] BaseAddress The physical address that is the start
address of a memory region. address of a memory region.
@param[in] NumberOfPages The number of pages from start memory @param[in] NumPages The number of pages from start memory
region. region.
@param[in] Flush Flush the caches before clearing the bit @param[in] Flush Flush the caches before setting the bit
(mostly TRUE except MMIO addresses) (mostly TRUE except MMIO addresses)
@retval RETURN_SUCCESS The attributes were cleared for the @retval RETURN_SUCCESS The attributes were set for the memory
memory region. region.
@retval RETURN_INVALID_PARAMETER Number of pages is zero. @retval RETURN_INVALID_PARAMETER Number of pages is zero.
@retval RETURN_UNSUPPORTED Clearing the memory encryption attribute @retval RETURN_UNSUPPORTED Setting the memory encryption attribute
is not supported is not supported
**/ **/
RETURN_STATUS RETURN_STATUS