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.dong@intel.com>
Cc: Ray Ni <ray.ni@intel.com>
Cc: Rahul Kumar <rahul1.kumar@intel.com>
Cc: Gerd Hoffmann <kraxel@redhat.com>
Cc: Leif Lindholm <quic_llindhol@quicinc.com>
Cc: Ard Biesheuvel <ardb+tianocore@kernel.org>
Cc: Sami Mujawar <sami.mujawar@arm.com>
Cc: Sunil V L <sunilvl@ventanamicro.com>
Cc: Andrei Warkentin <andrei.warkentin@intel.com>
Signed-off-by: Chao Li <lichao@loongson.cn>
Reviewed-by: Andrei Warkentin <andrei.warkentin@intel.com>
Reviewed-by: Ray Ni <ray.ni@intel.com>
---
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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