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 <eric.d...@intel.com> Cc: Ray Ni <ray...@intel.com> Cc: Rahul Kumar <rahul1.ku...@intel.com> Cc: Gerd Hoffmann <kra...@redhat.com> Cc: Leif Lindholm <quic_llind...@quicinc.com> Cc: Ard Biesheuvel <ardb+tianoc...@kernel.org> Cc: Sami Mujawar <sami.muja...@arm.com> Cc: Sunil V L <suni...@ventanamicro.com> Cc: Andrei Warkentin <andrei.warken...@intel.com> Signed-off-by: Chao Li <lic...@loongson.cn> Reviewed-by: Andrei Warkentin <andrei.warken...@intel.com> --- UefiCpuPkg/Include/Library/CpuMmuLib.h | 67 ++++++++++++++++++++++++++ UefiCpuPkg/UefiCpuPkg.dec | 4 ++ 2 files changed, 71 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..97e0ec0586 --- /dev/null +++ b/UefiCpuPkg/Include/Library/CpuMmuLib.h @@ -0,0 +1,67 @@ +/** @file + + Copyright (c) 2023 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> + +#define EFI_MEMORY_CACHETYPE_MASK (EFI_MEMORY_UC | \ + EFI_MEMORY_WC | \ + EFI_MEMORY_WT | \ + EFI_MEMORY_WB | \ + EFI_MEMORY_UCE \ + ) + +typedef struct { + EFI_PHYSICAL_ADDRESS PhysicalBase; + EFI_VIRTUAL_ADDRESS VirtualBase; + UINTN Length; + UINTN Attributes; +} MEMORY_REGION_DESCRIPTOR; + +/** + Finds 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] EndAddress To find the end address of the memory region. + @param[out] RegionLength 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 UINTN EndAddress, + 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 154b1d06fe..150beae981 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 -=-=-=-=-=-=-=-=-=-=-=- Groups.io Links: You receive all messages sent to this group. View/Reply Online (#112403): https://edk2.groups.io/g/devel/message/112403 Mute This Topic: https://groups.io/mt/103129095/21656 Group Owner: devel+ow...@edk2.groups.io Unsubscribe: https://edk2.groups.io/g/devel/unsub [arch...@mail-archive.com] -=-=-=-=-=-=-=-=-=-=-=-
