tests: Add a basic direct boot test with acpi=off

Check that everything continues to function without ACPI.

Signed-off-by: Rob Bradford <robert.bradford@intel.com>

src/main.rs

@@ -2016,6 +2016,63 @@ mod tests {
         });
     }
 
+    #[test]
+    fn test_vmlinux_boot_noacpi() {
+        test_block!(tb, "", {
+            let mut clear = ClearDiskConfig::new();
+            let guest = Guest::new(&mut clear);
+            let mut workload_path = dirs::home_dir().unwrap();
+            workload_path.push("workloads");
+
+            let mut kernel_path = workload_path.clone();
+            kernel_path.push("vmlinux");
+
+            let mut child = Command::new("target/debug/cloud-hypervisor")
+                .args(&["--cpus", "1"])
+                .args(&["--memory", "size=512M"])
+                .args(&["--kernel", kernel_path.to_str().unwrap()])
+                .args(&[
+                    "--disk",
+                    guest
+                        .disk_config
+                        .disk(DiskType::OperatingSystem)
+                        .unwrap()
+                        .as_str(),
+                    guest
+                        .disk_config
+                        .disk(DiskType::CloudInit)
+                        .unwrap()
+                        .as_str(),
+                ])
+                .args(&["--net", guest.default_net_string().as_str()])
+                .args(&["--cmdline", "root=PARTUUID=3cb0e0a5-925d-405e-bc55-edf0cec8f10a console=tty0 console=ttyS0,115200n8 console=hvc0 quiet init=/usr/lib/systemd/systemd-bootchart initcall_debug tsc=reliable no_timer_check noreplace-smp cryptomgr.notests rootfstype=ext4,btrfs,xfs kvm-intel.nested=1 rw acpi=off"])
+                .spawn()
+                .unwrap();
+
+            thread::sleep(std::time::Duration::new(20, 0));
+
+            aver_eq!(tb, guest.get_cpu_count().unwrap_or_default(), 1);
+            aver!(tb, guest.get_total_memory().unwrap_or_default() > 496_000);
+            aver!(tb, guest.get_entropy().unwrap_or_default() >= 900);
+            aver_eq!(
+                tb,
+                guest
+                    .ssh_command("grep -c PCI-MSI /proc/interrupts")
+                    .unwrap_or_default()
+                    .trim()
+                    .parse::<u32>()
+                    .unwrap_or_default(),
+                10
+            );
+
+            guest.ssh_command("sudo shutdown -h now")?;
+            thread::sleep(std::time::Duration::new(10, 0));
+            let _ = child.kill();
+            let _ = child.wait();
+            Ok(())
+        });
+    }
+
     #[test]
     #[ignore]
     fn test_reboot() {