td-shim-tools: fix the wrong IPL checksum

Update the checksum after setting the FV header. Signed-off-by: Jiaqi Gao <[email protected]>
sgrams · Aug 10, 2024 · 9dea7d2 · 9dea7d2
1 parent fead16f
commit 9dea7d2
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/td-shim-tools/src/linker.rs b/td-shim-tools/src/linker.rs
@@ -155,7 +155,7 @@ impl FvHeaderByte {
         let mut tdx_ipl_fv_header = IplFvHeader::default();
         tdx_ipl_fv_header.fv_header.fv_length =
             (TD_SHIM_IPL_SIZE + TD_SHIM_RESET_VECTOR_SIZE) as u64;
-        tdx_ipl_fv_header.fv_header.checksum = 0x3d21;
+        tdx_ipl_fv_header.fv_header.update_checksum();
         tdx_ipl_fv_header.fv_block_map[0].num_blocks =
             (TD_SHIM_IPL_SIZE + TD_SHIM_RESET_VECTOR_SIZE) / 0x1000;
         tdx_ipl_fv_header.fv_block_map[0].length = 0x1000;