Reviewed-by: Ray Ni <[email protected]> Thanks, Ray > -----Original Message----- > From: Chao Li <[email protected]> > Sent: Friday, January 5, 2024 5:44 PM > To: [email protected] > Cc: Dong, Eric <[email protected]>; Ni, Ray <[email protected]>; Kumar, > Rahul R <[email protected]>; Gerd Hoffmann <[email protected]>; > Leif Lindholm <[email protected]>; Ard Biesheuvel > <[email protected]>; Sami Mujawar <[email protected]>; > Sunil V L <[email protected]>; Warkentin, Andrei > <[email protected]> > Subject: [PATCH v6 12/36] UefiCpuPkg: Add CpuMmuLib.h to UefiCpuPkg > > Add a new header file CpuMmuLib.h, whitch is referenced from > ArmPkg/Include/Library/ArmMmuLib.h. Currently, only support for > LoongArch64 is added, and more architectures can be accommodated in the > future. > > BZ: https://bugzilla.tianocore.org/show_bug.cgi?id=4584 > > Cc: Eric Dong <[email protected]> > Cc: Ray Ni <[email protected]> > Cc: Rahul Kumar <[email protected]> > Cc: Gerd Hoffmann <[email protected]> > Cc: Leif Lindholm <[email protected]> > Cc: Ard Biesheuvel <[email protected]> > Cc: Sami Mujawar <[email protected]> > Cc: Sunil V L <[email protected]> > Cc: Andrei Warkentin <[email protected]> > Signed-off-by: Chao Li <[email protected]> > Reviewed-by: Andrei Warkentin <[email protected]> > --- > UefiCpuPkg/Include/Library/CpuMmuLib.h | 62 > ++++++++++++++++++++++++++ > UefiCpuPkg/UefiCpuPkg.dec | 4 ++ > 2 files changed, 66 insertions(+) > create mode 100644 UefiCpuPkg/Include/Library/CpuMmuLib.h > > diff --git a/UefiCpuPkg/Include/Library/CpuMmuLib.h > b/UefiCpuPkg/Include/Library/CpuMmuLib.h > new file mode 100644 > index 0000000000..f88ec4eb2e > --- /dev/null > +++ b/UefiCpuPkg/Include/Library/CpuMmuLib.h > @@ -0,0 +1,62 @@ > +/** @file > + > + Copyright (c) 2024 Loongson Technology Corporation Limited. All rights > reserved.<BR> > + > + SPDX-License-Identifier: BSD-2-Clause-Patent > + > +**/ > + > +#ifndef CPU_MMU_LIB_H_ > +#define CPU_MMU_LIB_H_ > + > +#include <Uefi/UefiBaseType.h> > + > +typedef struct { > + EFI_PHYSICAL_ADDRESS PhysicalBase; > + EFI_VIRTUAL_ADDRESS VirtualBase; > + UINTN Length; > + UINTN Attributes; > +} MEMORY_REGION_DESCRIPTOR; > + > +/** > + Finds the first of the length and memory properties of the memory region > corresponding > + to the specified base address. > + > + @param[in] BaseAddress To find the base address of the memory > region. > + @param[in, out] RegionLength Pointer holding: > + - At entry, the length of the memory > region > + expected to be found. > + - At exit, the length of the memory > region found. > + @param[out] RegionAttributes Properties of the memory region found. > + > + @retval EFI_SUCCESS The corresponding memory area was successfully > found > + EFI_NOT_FOUND No memory area found > +**/ > +EFI_STATUS > +EFIAPI > +GetMemoryRegionAttributes ( > + IN UINTN BaseAddress, > + IN OUT UINTN *RegionLength, > + OUT UINTN *RegionAttributes > + ); > + > +/** > + Sets the Attributes of the specified memory region. > + > + @param[in] BaseAddress The base address of the memory region to set > the Attributes. > + @param[in] Length The length of the memory region to set the > Attributes. > + @param[in] Attributes The Attributes to be set. > + @param[in] AttributeMask Mask of memory attributes to take into > account. > + > + @retval EFI_SUCCESS The Attributes was set successfully > +**/ > +EFI_STATUS > +EFIAPI > +SetMemoryRegionAttributes ( > + IN EFI_PHYSICAL_ADDRESS BaseAddress, > + IN UINTN Length, > + IN UINTN Attributes, > + IN UINT64 AttributeMask > + ); > + > +#endif // CPU_MMU_LIB_H_ > diff --git a/UefiCpuPkg/UefiCpuPkg.dec b/UefiCpuPkg/UefiCpuPkg.dec > index 84f61254bb..9b11a3da72 100644 > --- a/UefiCpuPkg/UefiCpuPkg.dec > +++ b/UefiCpuPkg/UefiCpuPkg.dec > @@ -62,6 +62,10 @@ > ## @libraryclass Provides function for manipulating x86 paging > structures. > CpuPageTableLib|Include/Library/CpuPageTableLib.h > > +[LibraryClasses.LoongArch64] > + ## @libraryclass Provides macros and functions for the memory > management unit. > + CpuMmuLib|Include/Library/CpuMmuLib.h > + > ## @libraryclass Provides functions for manipulating smram savestate > registers. > MmSaveStateLib|Include/Library/MmSaveStateLib.h > > -- > 2.27.0
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