diff --git a/BaseTools/Conf/tools_def.template b/BaseTools/Conf/tools_def.template
index 07e80e7223..43452f7613 100644
--- a/BaseTools/Conf/tools_def.template
+++ b/BaseTools/Conf/tools_def.template
@@ -1489,13 +1489,15 @@ DEFINE CLANGDWARF_IA32_TARGET         = -target i686-pc-linux-gnu
 DEFINE CLANGDWARF_X64_TARGET          = -target x86_64-pc-linux-gnu
 DEFINE CLANGDWARF_AARCH64_TARGET      = -target aarch64-linux-gnu
 DEFINE CLANGDWARF_RISCV64_TARGET      = -target riscv64-linux-gnu
+DEFINE CLANGDWARF_LOONGARCH64_TARGET  = -target loongarch64-linux-gnu
 
 DEFINE CLANGDWARF_WARNING_OVERRIDES   = -Wno-parentheses-equality -Wno-empty-body -Wno-varargs -Wno-unknown-warning-option -Wno-unaligned-access
 DEFINE CLANGDWARF_ALL_CC_FLAGS        = DEF(GCC_ALL_CC_FLAGS) DEF(CLANGDWARF_WARNING_OVERRIDES) -fno-stack-protector -mms-bitfields -Wno-address -Wno-shift-negative-value -Wno-unknown-pragmas -Wno-incompatible-library-redeclaration -fno-asynchronous-unwind-tables -msoft-float -mno-implicit-float  -ftrap-function=undefined_behavior_has_been_optimized_away_by_clang -funsigned-char -fno-ms-extensions -Wno-null-dereference
 
-DEFINE CLANGDWARF_AARCH64_CC_FLAGS    = DEF(GCC_AARCH64_CC_COMMON) DEF(CLANGDWARF_AARCH64_TARGET) -mcmodel=small DEF(CLANGDWARF_WARNING_OVERRIDES)
-DEFINE CLANGDWARF_RISCV64_CC_COMMON   = DEF(GCC_RISCV_ALL_CC_FLAGS) DEF(GCC_RISCV_ALL_CC_FLAGS_WARNING_DISABLE) DEF(GCC_RISCV_OPENSBI_TYPES) -march=DEF(GCC_RISCV64_ARCH) -fno-builtin -fno-builtin-memcpy -fno-stack-protector -Wno-address -fno-asynchronous-unwind-tables -fno-unwind-tables -fpack-struct=8 -mcmodel=medany -mabi=lp64 -mno-relax
-DEFINE CLANGDWARF_RISCV64_CC_FLAGS    = DEF(CLANGDWARF_RISCV64_CC_COMMON) DEF(CLANGDWARF_RISCV64_TARGET) DEF(CLANGDWARF_WARNING_OVERRIDES)
+DEFINE CLANGDWARF_AARCH64_CC_FLAGS      = DEF(GCC_AARCH64_CC_COMMON) DEF(CLANGDWARF_AARCH64_TARGET) -mcmodel=small DEF(CLANGDWARF_WARNING_OVERRIDES)
+DEFINE CLANGDWARF_RISCV64_CC_COMMON     = DEF(GCC_RISCV_ALL_CC_FLAGS) DEF(GCC_RISCV_ALL_CC_FLAGS_WARNING_DISABLE) DEF(GCC_RISCV_OPENSBI_TYPES) -march=DEF(GCC_RISCV64_ARCH) -fno-builtin -fno-builtin-memcpy -fno-stack-protector -Wno-address -fno-asynchronous-unwind-tables -fno-unwind-tables -fpack-struct=8 -mcmodel=medany -mabi=lp64 -mno-relax
+DEFINE CLANGDWARF_RISCV64_CC_FLAGS      = DEF(CLANGDWARF_RISCV64_CC_COMMON) DEF(CLANGDWARF_RISCV64_TARGET) DEF(CLANGDWARF_WARNING_OVERRIDES)
+DEFINE CLANGDWARF_LOONGARCH64_CC_FLAGS  = DEF(GCC_ALL_CC_FLAGS) DEF(CLANGDWARF_LOONGARCH64_TARGET) DEF(CLANGDWARF_WARNING_OVERRIDES) -march=loongarch64 -mabi=lp64d -mcmodel=normal -fno-asynchronous-unwind-tables -Wno-address -fno-short-enums -fsigned-char -ffunction-sections -fdata-sections -Werror -Wno-maybe-uninitialized -Wno-stringop-overflow -Wno-pointer-to-int-cast -fno-stack-protector -mno-relax -Qunused-arguments -mllvm --loongarch-enable-merge-offset=0
 
 # LLVM/CLANG doesn't support -n link option. So, it can't share the same IA32_X64_DLINK_COMMON flag.
 # LLVM/CLANG doesn't support common page size. So, it can't share the same GccBase.lds script.
@@ -1510,6 +1512,7 @@ DEFINE CLANGDWARF_AARCH64_DLINK_FLAGS       = DEF(CLANGDWARF_AARCH64_TARGET) DEF
 DEFINE CLANGDWARF_RISCV64_ALL_DLINK_COMMON  = -nostdlib -Wl,-q,--gc-sections -z common-page-size=0x40 DEF(CLANGDWARF_DLINK_WARNING_FLAGS)
 DEFINE CLANGDWARF_RISCV64_ALL_DLINK_FLAGS   = DEF(CLANGDWARF_RISCV64_ALL_DLINK_COMMON) -Wl,--entry,$(IMAGE_ENTRY_POINT) -u $(IMAGE_ENTRY_POINT) -Wl,-Map,$(DEST_DIR_DEBUG)/$(BASE_NAME).map
 DEFINE CLANGDWARF_RISCV64_DLINK_FLAGS       = DEF(CLANGDWARF_RISCV64_TARGET) DEF(CLANGDWARF_RISCV64_ALL_DLINK_FLAGS) -Wl,-melf64lriscv,--oformat=elf64-littleriscv,--no-relax
+DEFINE CLANGDWARF_LOONGARCH64_DLINK_FLAGS   = DEF(CLANGDWARF_LOONGARCH64_TARGET) DEF(GCC_LOONGARCH64_DLINK_FLAGS)
 
 DEFINE CLANGDWARF_IA32_X64_ASLDLINK_FLAGS   = DEF(CLANGDWARF_IA32_X64_DLINK_COMMON) -Wl,--defsym=PECOFF_HEADER_SIZE=0 DEF(CLANGDWARF_DLINK2_FLAGS_COMMON) -Wl,--entry,ReferenceAcpiTable -u ReferenceAcpiTable
 
@@ -1690,6 +1693,50 @@ RELEASE_CLANGDWARF_RISCV64_DLINK_FLAGS    = DEF(CLANGDWARF_RISCV64_DLINK_FLAGS)
 NOOPT_CLANGDWARF_RISCV64_CC_FLAGS         = DEF(CLANGDWARF_RISCV64_CC_FLAGS) $(PLATFORM_FLAGS) -O0
 NOOPT_CLANGDWARF_RISCV64_DLINK_FLAGS      = DEF(CLANGDWARF_RISCV64_DLINK_FLAGS) -fuse-ld=lld -Wl,--no-pie,--no-relax
 
+##################
+# CLANGDWARF LOONGARCH64 definitions
+##################
+*_CLANGDWARF_LOONGARCH64_PP_FLAGS       = DEF(GCC_PP_FLAGS)
+*_CLANGDWARF_LOONGARCH64_ASLCC_FLAGS    = DEF(GCC_ASLCC_FLAGS)
+*_CLANGDWARF_LOONGARCH64_APP_FLAGS      =
+*_CLANGDWARF_LOONGARCH64_ASL_FLAGS      = DEF(IASL_FLAGS)
+*_CLANGDWARF_LOONGARCH64_ASL_OUTFLAGS   = DEF(IASL_OUTFLAGS)
+*_CLANGDWARF_LOONGARCH64_DTCPP_FLAGS    = DEF(GCC_DTCPP_FLAGS)
+
+*_CLANGDWARF_LOONGARCH64_CC_PATH        = ENV(CLANGDWARF_BIN)clang
+*_CLANGDWARF_LOONGARCH64_ASM_PATH       = ENV(CLANGDWARF_BIN)clang
+*_CLANGDWARF_LOONGARCH64_PP_PATH        = ENV(CLANGDWARF_BIN)clang
+*_CLANGDWARF_LOONGARCH64_VFRPP_PATH     = ENV(CLANGDWARF_BIN)clang
+*_CLANGDWARF_LOONGARCH64_ASLCC_PATH     = ENV(CLANGDWARF_BIN)clang
+*_CLANGDWARF_LOONGARCH64_ASLPP_PATH     = ENV(CLANGDWARF_BIN)clang
+*_CLANGDWARF_LOONGARCH64_DLINK_PATH     = ENV(CLANGDWARF_BIN)clang
+*_CLANGDWARF_LOONGARCH64_ASLDLINK_PATH  = ENV(CLANGDWARF_BIN)clang
+
+*_CLANGDWARF_LOONGARCH64_SLINK_PATH     = ENV(CLANGDWARF_BIN)llvm-ar
+*_CLANGDWARF_LOONGARCH64_RC_PATH        = ENV(CLANGDWARF_BIN)llvm-objcopy
+
+*_CLANGDWARF_LOONGARCH64_ASLCC_FLAGS    = DEF(GCC_ASLCC_FLAGS) -fno-lto
+*_CLANGDWARF_LOONGARCH64_ASLDLINK_FLAGS = DEF(CLANGDWARF_LOONGARCH64_TARGET) DEF(GCC_LOONGARCH64_ASLDLINK_FLAGS)
+*_CLANGDWARF_LOONGARCH64_ASM_FLAGS      = DEF(GCC_ASM_FLAGS) DEF(CLANGDWARF_LOONGARCH64_TARGET) $(PLATFORM_FLAGS) -Qunused-arguments -mno-relax
+*_CLANGDWARF_LOONGARCH64_DLINK_FLAGS    = DEF(CLANGDWARF_LOONGARCH64_TARGET) DEF(GCC_LOONGARCH64_DLINK_FLAGS)
+*_CLANGDWARF_LOONGARCH64_DLINK_XIPFLAGS = -z common-page-size=0x20
+*_CLANGDWARF_LOONGARCH64_DLINK2_FLAGS   = DEF(GCC_DLINK2_FLAGS_COMMON) -Wl,--defsym=PECOFF_HEADER_SIZE=0x228
+*_CLANGDWARF_LOONGARCH64_PLATFORM_FLAGS =
+*_CLANGDWARF_LOONGARCH64_PP_FLAGS       = DEF(GCC_PP_FLAGS) DEF(CLANGDWARF_LOONGARCH64_TARGET) $(PLATFORM_FLAGS)
+*_CLANGDWARF_LOONGARCH64_RC_FLAGS       = DEF(GCC_LOONGARCH64_RC_FLAGS)
+*_CLANGDWARF_LOONGARCH64_VFRPP_FLAGS    = DEF(GCC_VFRPP_FLAGS) DEF(CLANGDWARF_LOONGARCH64_TARGET) $(PLATFORM_FLAGS)
+*_CLANGDWARF_LOONGARCH64_ASLPP_FLAGS    = DEF(GCC_ASLPP_FLAGS) DEF(CLANGDWARF_LOONGARCH64_TARGET)
+*_CLANGDWARF_LOONGARCH64_CC_XIPFLAGS    = -mstrict-align
+
+DEBUG_CLANGDWARF_LOONGARCH64_CC_FLAGS      = DEF(CLANGDWARF_LOONGARCH64_CC_FLAGS) $(PLATFORM_FLAGS) -O1
+DEBUG_CLANGDWARF_LOONGARCH64_DLINK_FLAGS   = DEF(CLANGDWARF_LOONGARCH64_DLINK_FLAGS) -Wl,-O1 -fuse-ld=lld -Wl,--no-pie,--no-relax
+
+RELEASE_CLANGDWARF_LOONGARCH64_CC_FLAGS    = DEF(CLANGDWARF_LOONGARCH64_CC_FLAGS) $(PLATFORM_FLAGS) -Oz
+RELEASE_CLANGDWARF_LOONGARCH64_DLINK_FLAGS = DEF(CLANGDWARF_LOONGARCH64_DLINK_FLAGS) -Wl,-O3 -fuse-ld=lld -Wl,--no-pie,--no-relax
+
+NOOPT_CLANGDWARF_LOONGARCH64_CC_FLAGS      = DEF(CLANGDWARF_LOONGARCH64_CC_FLAGS) $(PLATFORM_FLAGS) -O0
+NOOPT_CLANGDWARF_LOONGARCH64_DLINK_FLAGS   = DEF(CLANGDWARF_LOONGARCH64_DLINK_FLAGS) -fuse-ld=lld -Wl,--no-pie,--no-relax
+
 #
 #
 # XCODE5 support