diff --git a/compiler/rustc_target/src/asm/mod.rs b/compiler/rustc_target/src/asm/mod.rs
index 05b24d7109481..0078866ab9503 100644
--- a/compiler/rustc_target/src/asm/mod.rs
+++ b/compiler/rustc_target/src/asm/mod.rs
@@ -997,8 +997,8 @@ impl InlineAsmClobberAbi {
                 _ => Err(&["C", "system"]),
             },
             InlineAsmArch::LoongArch32 | InlineAsmArch::LoongArch64 => match name {
-                "C" | "system" => Ok(InlineAsmClobberAbi::LoongArch),
-                _ => Err(&["C", "system"]),
+                "C" | "system" | "efiapi" => Ok(InlineAsmClobberAbi::LoongArch),
+                _ => Err(&["C", "system", "efiapi"]),
             },
             InlineAsmArch::PowerPC | InlineAsmArch::PowerPC64 => match name {
                 "C" | "system" => Ok(if target.abi == Abi::Spe {
diff --git a/compiler/rustc_target/src/spec/abi_map.rs b/compiler/rustc_target/src/spec/abi_map.rs
index 8126227d80e48..d7fc18cd3761e 100644
--- a/compiler/rustc_target/src/spec/abi_map.rs
+++ b/compiler/rustc_target/src/spec/abi_map.rs
@@ -56,6 +56,7 @@ impl AbiMap {
                 ArmVer::Other
             }),
             Arch::Avr => ArchKind::Avr,
+            Arch::LoongArch32 | Arch::LoongArch64 => ArchKind::LoongArch,
             Arch::Msp430 => ArchKind::Msp430,
             Arch::Nvptx64 => ArchKind::Nvptx,
             Arch::RiscV32 | Arch::RiscV64 => ArchKind::Riscv,
@@ -108,7 +109,10 @@ impl AbiMap {
 
             (ExternAbi::EfiApi, ArchKind::Arm(..)) => CanonAbi::Arm(ArmCall::Aapcs),
             (ExternAbi::EfiApi, ArchKind::X86_64) => CanonAbi::X86(X86Call::Win64),
-            (ExternAbi::EfiApi, ArchKind::Aarch64 | ArchKind::Riscv | ArchKind::X86) => CanonAbi::C,
+            (
+                ExternAbi::EfiApi,
+                ArchKind::Aarch64 | ArchKind::LoongArch | ArchKind::Riscv | ArchKind::X86,
+            ) => CanonAbi::C,
             (ExternAbi::EfiApi, _) => return AbiMapping::Invalid,
 
             /* arm */
@@ -196,6 +200,7 @@ enum ArchKind {
     Amdgpu,
     Arm(ArmVer),
     Avr,
+    LoongArch,
     Msp430,
     Nvptx,
     Riscv,