diff --git a/vmm/src/config.rs b/vmm/src/config.rs
index d89058d2f..0281053f6 100644
--- a/vmm/src/config.rs
+++ b/vmm/src/config.rs
@@ -12,13 +12,11 @@ use std::net::AddrParseError;
 use std::net::Ipv4Addr;
 use std::path::PathBuf;
 use std::result;
-use vm_memory::GuestAddress;
 use vm_virtio::vhost_user::VhostUserConfig;
 
 pub const DEFAULT_VCPUS: &str = "1";
 pub const DEFAULT_MEMORY: &str = "size=512M";
 pub const DEFAULT_RNG_SOURCE: &str = "/dev/urandom";
-const CMDLINE_OFFSET: GuestAddress = GuestAddress(0x20000);
 
 /// Errors associated with VM configuration parameters.
 #[derive(Debug)]
@@ -190,7 +188,6 @@ impl KernelConfig {
 #[derive(Clone)]
 pub struct CmdlineConfig {
     pub args: Cmdline,
-    pub offset: GuestAddress,
 }
 
 impl CmdlineConfig {
@@ -201,10 +198,7 @@ impl CmdlineConfig {
         let mut args = Cmdline::new(arch::CMDLINE_MAX_SIZE);
         args.insert_str(cmdline_str).unwrap();
 
-        Ok(CmdlineConfig {
-            args,
-            offset: CMDLINE_OFFSET,
-        })
+        Ok(CmdlineConfig { args })
     }
 }
 
diff --git a/vmm/src/vm.rs b/vmm/src/vm.rs
index 86faf307a..b49be3fe4 100755
--- a/vmm/src/vm.rs
+++ b/vmm/src/vm.rs
@@ -704,7 +704,7 @@ impl Vm {
 
         linux_loader::loader::load_cmdline(
             mem.deref(),
-            self.config.cmdline.offset,
+            arch::layout::CMDLINE_START,
             &cmdline_cstring,
         )
         .map_err(|_| Error::CmdLine)?;
@@ -715,7 +715,7 @@ impl Vm {
             Some(hdr) => {
                 arch::configure_system(
                     &mem,
-                    self.config.cmdline.offset,
+                    arch::layout::CMDLINE_START,
                     cmdline_cstring.to_bytes().len() + 1,
                     vcpu_count,
                     Some(hdr),
@@ -735,7 +735,7 @@ impl Vm {
             None => {
                 arch::configure_system(
                     &mem,
-                    self.config.cmdline.offset,
+                    arch::layout::CMDLINE_START,
                     cmdline_cstring.to_bytes().len() + 1,
                     vcpu_count,
                     None,