plumb max_guest_log_level through MultiUseSandbox::from_snapshot

Justfile

@@ -241,6 +241,7 @@ test-loom:
 test-isolated target=default-target features="" :
     {{ cargo-cmd }} test {{ if features =="" {''} else if features=="no-default-features" {"--no-default-features" } else {"--no-default-features -F " + features } }} --profile={{ if target == "debug" { "dev" } else { target } }} {{ target-triple-flag }} -p hyperlight-host --lib -- sandbox::uninitialized::tests::test_log_trace --exact --ignored
     {{ cargo-cmd }} test {{ if features =="" {''} else if features=="no-default-features" {"--no-default-features" } else {"--no-default-features -F " + features } }} --profile={{ if target == "debug" { "dev" } else { target } }} {{ target-triple-flag }} -p hyperlight-host --lib -- sandbox::outb::tests::test_log_outb_log --exact --ignored
+    {{ cargo-cmd }} test {{ if features =="" {''} else if features=="no-default-features" {"--no-default-features" } else {"--no-default-features -F " + features } }} --profile={{ if target == "debug" { "dev" } else { target } }} {{ target-triple-flag }} -p hyperlight-host --lib -- sandbox::initialized_multi_use::tests::from_snapshot::max_guest_log_level_is_honored_from_snapshot --exact --ignored
     {{ cargo-cmd }} test {{ if features =="" {''} else if features=="no-default-features" {"--no-default-features" } else {"--no-default-features -F " + features } }} --profile={{ if target == "debug" { "dev" } else { target } }} {{ target-triple-flag }} -p hyperlight-host --test integration_test -- log_message --exact --ignored
     @# CPU vendor check, gated to known CI runner hardware
     {{ cargo-cmd }} test {{ if features =="" {''} else if features=="no-default-features" {"--no-default-features" } else {"--no-default-features -F " + features } }} --profile={{ if target == "debug" { "dev" } else { target } }} {{ target-triple-flag }} -p hyperlight-host --lib -- sandbox::snapshot::file::config::tests::cpu_vendor_current_is_recognized --exact --ignored
@@ -525,6 +526,7 @@ coverage-run hypervisor="kvm": ensure-cargo-llvm-cov
     # isolated tests (require running separately due to global state)
     cargo +nightly test -p hyperlight-host --lib -- sandbox::uninitialized::tests::test_log_trace --exact --ignored
     cargo +nightly test -p hyperlight-host --lib -- sandbox::outb::tests::test_log_outb_log --exact --ignored
+    cargo +nightly test -p hyperlight-host --lib -- sandbox::initialized_multi_use::tests::from_snapshot::max_guest_log_level_is_honored_from_snapshot --exact --ignored
     cargo +nightly test -p hyperlight-host --test integration_test -- log_message --exact --ignored
     cargo +nightly test -p hyperlight-host --no-default-features -F function_call_metrics,{{ if hypervisor == "mshv3" { "mshv3" } else { "kvm" } }} --lib -- metrics::tests::test_metrics_are_emitted --exact
 

src/hyperlight_host/benches/benchmarks.rs

@@ -373,7 +373,10 @@ fn bench_sandbox_from_snapshot(b: &mut criterion::Bencher, size: SandboxSize) {
     // Drop is not included.
     b.iter_batched(
         || (),
-        |_| MultiUseSandbox::from_snapshot(loaded.clone(), HostFunctions::default(), None).unwrap(),
+        |_| {
+            MultiUseSandbox::from_snapshot(loaded.clone(), HostFunctions::default(), None, None)
+                .unwrap()
+        },
         criterion::BatchSize::PerIteration,
     );
 }
@@ -678,6 +681,7 @@ fn snapshot_file_benchmark(c: &mut Criterion) {
                         std::sync::Arc::new(loaded),
                         HostFunctions::default(),
                         None,
+                        None,
                     )
                     .unwrap();
                     sbox.call::<String>("Echo", "hello\n".to_string()).unwrap();
@@ -703,6 +707,7 @@ fn snapshot_file_benchmark(c: &mut Criterion) {
                             std::sync::Arc::new(loaded),
                             HostFunctions::default(),
                             None,
+                            None,
                         )
                         .unwrap();
                         sbox.call::<String>("Echo", "hello\n".to_string()).unwrap();

src/hyperlight_host/examples/crashdump/main.rs

@@ -473,7 +473,8 @@ mod tests {
         let mut cfg2 = SandboxConfiguration::default();
         cfg2.set_guest_core_dump(true);
         let mut sbox2 =
-            MultiUseSandbox::from_snapshot(snapshot, HostFunctions::default(), Some(cfg2)).unwrap();
+            MultiUseSandbox::from_snapshot(snapshot, HostFunctions::default(), Some(cfg2), None)
+                .unwrap();
 
         let result = sbox2.call::<()>("TriggerException", ());
         assert!(result.is_err(), "TriggerException should return an error");

src/hyperlight_host/examples/guest-debugging/main.rs

@@ -401,8 +401,12 @@ mod tests {
             let mut cfg = SandboxConfiguration::default();
             cfg.set_guest_debug_info(DebugInfo { port: PORT });
 
-            let mut sbox =
-                MultiUseSandbox::from_snapshot(snap_thread, HostFunctions::default(), Some(cfg))?;
+            let mut sbox = MultiUseSandbox::from_snapshot(
+                snap_thread,
+                HostFunctions::default(),
+                Some(cfg),
+                None,
+            )?;
             sbox.call::<i32>(
                 "PrintOutput",
                 "Hello from a from_snapshot sandbox\n".to_string(),

src/hyperlight_host/src/sandbox/host_funcs.rs

@@ -98,7 +98,7 @@ impl Default for HostFunctions {
     /// This matches the default registry installed by
     /// `UninitializedSandbox::new()`, so a snapshot taken from a
     /// regular sandbox can be loaded with
-    /// `MultiUseSandbox::from_snapshot(snap, HostFunctions::default(), None)`
+    /// `MultiUseSandbox::from_snapshot(snap, HostFunctions::default(), None, None)`
     /// without registering anything else.
     ///
     /// Use [`HostFunctions::empty`] for an empty registry.