fix(test): exclude more File-bsaed test cases from miri

Miri sometimes non-deterministically has its mocks for read(2)/write(2)
do only partial reads/writes, which our unittests cannot deal with. See
also commit 029c652 ("fix(test): do not try to read files under
miri"). Mark these test cases as cfg(not(miri)).

Signed-off-by: Patrick Roy <[email protected]>

Author: roypat

src/mmap/mod.rs

@@ -449,12 +449,14 @@ mod tests {
         let gm_list = [gm, gm_backed_by_file];
         for gm in gm_list.iter() {
             let addr = GuestAddress(0x1010);
+            #[cfg(not(miri))]
             let mut file = if cfg!(target_family = "unix") {
                 File::open(Path::new("/dev/zero")).unwrap()
             } else {
                 File::open(Path::new("c:\\Windows\\system32\\ntoskrnl.exe")).unwrap()
             };
             gm.write_obj(!0u32, addr).unwrap();
+            #[cfg(not(miri))]
             gm.read_exact_volatile_from(addr, &mut file, mem::size_of::<u32>())
                 .unwrap();
             let value: u32 = gm.read_obj(addr).unwrap();