diff --git a/arch/src/aarch64/layout.rs b/arch/src/aarch64/layout.rs
index c3e41e82a..914230a4c 100644
--- a/arch/src/aarch64/layout.rs
+++ b/arch/src/aarch64/layout.rs
@@ -98,6 +98,11 @@ pub const RAM_START: GuestAddress = GuestAddress(0x4000_0000);
 pub const MEM_32BIT_RESERVED_START: GuestAddress = GuestAddress(0xfc00_0000);
 pub const MEM_32BIT_RESERVED_SIZE: u64 = 0x0400_0000;
 
+/// TPM Address Range
+/// This Address range is specific to CRB Interface
+pub const TPM_START: GuestAddress = GuestAddress(0xfed4_0000);
+pub const TPM_SIZE: u64 = 0x1000;
+
 /// Start of 64-bit RAM.
 pub const RAM_64BIT_START: GuestAddress = GuestAddress(0x1_0000_0000);
 
diff --git a/arch/src/x86_64/layout.rs b/arch/src/x86_64/layout.rs
index f48f8296c..d8acb8390 100644
--- a/arch/src/x86_64/layout.rs
+++ b/arch/src/x86_64/layout.rs
@@ -107,6 +107,11 @@ pub const KVM_TSS_SIZE: u64 = (3 * 4) << 10;
 pub const KVM_IDENTITY_MAP_START: GuestAddress = GuestAddress(KVM_TSS_START.0 + KVM_TSS_SIZE);
 pub const KVM_IDENTITY_MAP_SIZE: u64 = 4 << 10;
 
+/// TPM Address Range
+/// This Address range is specific to CRB Interface
+pub const TPM_START: GuestAddress = GuestAddress(0xfed4_0000);
+pub const TPM_SIZE: u64 = 0x1000;
+
 // IOAPIC
 pub const IOAPIC_START: GuestAddress = GuestAddress(0xfec0_0000);
 pub const IOAPIC_SIZE: u64 = 0x20;