[runtime] Start recovery flow in the runtime

This stubs out the recovery flow in the runtime.

We also update the DMA peripheral so that it can be used as a
`ureg::Mmio`, which will allow us to use the autogenerated I3C recovery
register interface instead of hardcoding offsets.

We also had to modify `ureg` slightly to remove the unused `impl Uint`
for `u64` (because we don't don't support 64-bit AXI transfers) and add
a `from_u32()` method for the (unused) `u8` and `u16` implementations.

This builds on #1867 and rewrites it to use the updated DMA interface.

auth-manifest/types/src/lib.rs

@@ -24,6 +24,7 @@ use zeroize::Zeroize;
 
 pub const AUTH_MANIFEST_MARKER: u32 = 0x4154_4D4E;
 pub const AUTH_MANIFEST_IMAGE_METADATA_MAX_COUNT: usize = 127;
+pub const AUTH_MANIFEST_PREAMBLE_SIZE: usize = 7168;
 
 bitflags::bitflags! {
     #[derive(Default, Copy, Clone, Debug)]
@@ -187,3 +188,17 @@ pub struct AuthorizationManifest {
 
     pub image_metadata_col: AuthManifestImageMetadataCollection,
 }
+
+#[cfg(test)]
+mod test {
+    use crate::{AuthManifestPreamble, AUTH_MANIFEST_PREAMBLE_SIZE};
+    use zerocopy::AsBytes;
+
+    #[test]
+    fn test_auth_preamble_size() {
+        assert_eq!(
+            AUTH_MANIFEST_PREAMBLE_SIZE,
+            AuthManifestPreamble::default().as_bytes().len()
+        );
+    }
+}

common/src/lib.rs

@@ -41,7 +41,7 @@ pub use pcr::{PcrLogEntry, PcrLogEntryId, RT_FW_CURRENT_PCR, RT_FW_JOURNEY_PCR};
 pub const FMC_ORG: u32 = 0x40000000;
 pub const FMC_SIZE: u32 = 21 * 1024;
 pub const RUNTIME_ORG: u32 = FMC_ORG + FMC_SIZE;
-pub const RUNTIME_SIZE: u32 = 100 * 1024;
+pub const RUNTIME_SIZE: u32 = 128 * 1024;
 
 pub use memory_layout::{DATA_ORG, FHT_ORG, FHT_SIZE, MAN1_ORG};
 pub use wdt::{restart_wdt, start_wdt, stop_wdt, WdtTimeout};