diff --git a/.config/nextest.toml b/.config/nextest.toml
index f3a233feb..7e1d2586a 100644
--- a/.config/nextest.toml
+++ b/.config/nextest.toml
@@ -39,3 +39,8 @@ test-threads = 1
 
 [profile.ci-provider-integration.junit]
 path = "junit.xml"
+
+# profile for running the MBOR types smoke tests against the emu backend
+# (in-process firmware).
+[profile.ci-mbor-smoke.junit]
+path = "junit.xml"
diff --git a/.github/workflows/rust.yml b/.github/workflows/rust.yml
index 6e0d4fd25..db9d55a16 100644
--- a/.github/workflows/rust.yml
+++ b/.github/workflows/rust.yml
@@ -90,6 +90,50 @@ jobs:
         echo "One or more tests failed."
         exit 1
 
+  test_ubuntu_smoke:
+
+    runs-on: ubuntu-24.04
+
+    defaults:
+      run:
+        working-directory: .
+
+    steps:
+    - uses: actions/checkout@v6
+    - name: Install apt packages
+      run: |
+        sudo apt-get update
+        sudo apt-get install -y pkg-config libbsd-dev
+
+    - name: Restore Cargo cache
+      id: cargo-cache
+      uses: actions/cache/restore@v5
+      with:
+        path: |
+          ~/.cargo/bin/
+          ~/.cargo/registry/index/
+          ~/.cargo/registry/cache/
+          ~/.cargo/git/db/
+        key: ${{ runner.os }}-cargo-${{ env.CACHE_KEY_ID }}
+    - name: Setup
+      if: steps.cargo-cache.outputs.cache-hit != 'true' 
+      run: cargo xtask setup
+    - name: Run MBOR types smoke tests against emu backend
+      id: test-mbor-smoke
+      run: cargo xtask precheck --nextest --package azihsm_ddi_mbor_types --features emu --test azihsm_ddi_tests --filter smoke
+      continue-on-error: true
+    - name: Generate nextest report
+      id: nextest-report
+      run: cargo xtask precheck --nextest-report
+    - name: Code Coverage Summary Report
+      if: ${{ steps.test-mbor-smoke.outcome == 'success' }}
+      run: cargo xtask precheck --coverage-report
+    - name: Fail if any tests failed
+      if: ${{ steps.test-mbor-smoke.outcome == 'failure' }}
+      run: |
+        echo "One or more tests failed."
+        exit 1
+
   build_windows:
 
     runs-on: windows-2025-vs2026
@@ -145,3 +189,42 @@ jobs:
       run: |
         echo "One or more tests failed."
         exit 1
+
+  test_windows_smoke:
+
+    runs-on: windows-2025-vs2026
+
+    defaults:
+      run:
+        working-directory: .
+
+    steps:
+    - uses: actions/checkout@v6
+    - name: Restore Cargo cache
+      id: cargo-cache
+      uses: actions/cache/restore@v5
+      with:
+        path: |
+          ~/.cargo/bin/
+          ~/.cargo/registry/index/
+          ~/.cargo/registry/cache/
+          ~/.cargo/git/db/
+        key: ${{ runner.os }}-cargo-${{ env.CACHE_KEY_ID }}
+    - name: Setup
+      if: steps.cargo-cache.outputs.cache-hit != 'true' 
+      run: cargo xtask setup
+    - name: Run MBOR types smoke tests against emu backend
+      id: test-mbor-smoke
+      run: cargo xtask precheck --nextest --package azihsm_ddi_mbor_types --features emu --test azihsm_ddi_tests --filter smoke
+      continue-on-error: true
+    - name: Generate nextest report
+      id: nextest-report
+      run: cargo xtask precheck --nextest-report
+    - name: Code Coverage Summary Report
+      if: ${{ steps.test-mbor-smoke.outcome == 'success' }}
+      run: cargo xtask precheck --coverage-report
+    - name: Fail if any tests failed
+      if: ${{ steps.test-mbor-smoke.outcome == 'failure' }}
+      run: |
+        echo "One or more tests failed."
+        exit 1
diff --git a/xtask/src/nextest.rs b/xtask/src/nextest.rs
index e189dac60..e65013ae7 100644
--- a/xtask/src/nextest.rs
+++ b/xtask/src/nextest.rs
@@ -40,6 +40,14 @@ pub struct Nextest {
     /// Crates to exclude from nextest (e.g. crates with heavyweight build scripts)
     #[clap(long)]
     pub exclude: Vec<String>,
+
+    /// Test only the specified test target
+    #[clap(long)]
+    pub test: Option<String>,
+
+    /// Test name filters
+    #[clap(long)]
+    pub filter: Vec<String>,
 }
 
 impl Xtask for Nextest {
@@ -97,6 +105,14 @@ impl Xtask for Nextest {
                 command_args.push(val);
             }
         }
+        let test_val = self.test.clone().unwrap_or_default();
+        if self.test.is_some() {
+            command_args.push("--test");
+            command_args.push(&test_val);
+        }
+        if !self.filter.is_empty() {
+            command_args.extend(self.filter.iter().map(|s| s.as_str()));
+        }
 
         cmd!(
             sh,
diff --git a/xtask/src/precheck.rs b/xtask/src/precheck.rs
index 4788bfc29..58149a1f1 100644
--- a/xtask/src/precheck.rs
+++ b/xtask/src/precheck.rs
@@ -6,6 +6,8 @@
 
 //! Xtask to run various repo-specific checks
 
+use std::vec;
+
 use clap::Parser;
 
 use crate::audit::Audit;
@@ -180,6 +182,8 @@ impl Xtask for Precheck {
                     filterset: None,
                     profile: self.profile.clone().or(Some("ci-mock".to_string())),
                     exclude: self.exclude.clone(),
+                    test: None,
+                    filter: vec![],
                 }
                 .run(ctx.clone())?;
 
@@ -193,6 +197,23 @@ impl Xtask for Precheck {
                         filterset: Some("test(resiliency::fault_injection::)".to_string()),
                         profile: self.profile.clone().or(Some("ci-mock-res".to_string())),
                         exclude: self.exclude.clone(),
+                        test: None,
+                        filter: vec![],
+                    }
+                    .run(ctx.clone())?;
+                }
+
+                // Run MBOR types smoke tests against emu backend
+                if !self.exclude.iter().any(|e| e == "azihsm_ddi_mbor_types") {
+                    Nextest {
+                        features: Some("emu".to_string()),
+                        package: Some("azihsm_ddi_mbor_types".to_string()),
+                        no_default_features: false,
+                        filterset: None,
+                        profile: self.profile.clone().or(Some("ci-mbor-smoke".to_string())),
+                        exclude: self.exclude.clone(),
+                        test: None,
+                        filter: vec![],
                     }
                     .run(ctx.clone())?;
                 }
@@ -207,6 +228,8 @@ impl Xtask for Precheck {
                         filterset: None,
                         profile: self.profile.clone().or(Some("ci-mock-table-4".to_string())),
                         exclude: self.exclude.clone(),
+                        test: None,
+                        filter: vec![],
                     }
                     .run(ctx.clone())?;
 
@@ -221,6 +244,8 @@ impl Xtask for Precheck {
                             .clone()
                             .or(Some("ci-mock-table-64".to_string())),
                         exclude: self.exclude.clone(),
+                        test: None,
+                        filter: vec![],
                     }
                     .run(ctx.clone())?;
 
@@ -233,6 +258,8 @@ impl Xtask for Precheck {
                         filterset: None,
                         profile: self.profile.clone().or(Some("ci-tbor-emu".to_string())),
                         exclude: self.exclude.clone(),
+                        test: None,
+                        filter: vec![],
                     }
                     .run(ctx.clone())?;
                 }
@@ -244,6 +271,8 @@ impl Xtask for Precheck {
                     filterset: None,
                     profile: self.profile,
                     exclude: self.exclude,
+                    test: None,
+                    filter: vec![],
                 }
                 .run(ctx.clone())?;
             }