Ensure that the memory mapped file handle is passed to the HypervWindowsDriver

Signed-off-by: Simon Davies <simongdavies@users.noreply.github.com>

Author: simongdavies

src/hyperlight_host/src/hypervisor/hypervisor_handler.rs

@@ -893,13 +893,17 @@ fn set_up_hypervisor_partition(
 
             #[cfg(target_os = "windows")]
             Some(HypervisorType::Whp) => {
+                let mmap_file_handle = mgr
+                    .shared_mem
+                    .with_exclusivity(|e| e.get_mmap_file_handle())?;
                 let hv = crate::hypervisor::hyperv_windows::HypervWindowsDriver::new(
                     regions,
                     mgr.shared_mem.raw_mem_size(), // we use raw_* here because windows driver requires 64K aligned addresses,
                     mgr.shared_mem.raw_ptr() as *mut c_void, // and instead convert it to base_addr where needed in the driver itself
                     pml4_ptr.absolute()?,
                     entrypoint_ptr.absolute()?,
                     rsp_ptr.absolute()?,
+                    mmap_file_handle,
                 )?;
                 Ok(Box::new(hv))
             }