kboot/gpu: Add "no-map" property for reserved memory nodes

Without this property u-boot will add reserved memory regions to the EFI memory map with the wrong type. This results in Linux mapping it and thus breaking the intended use in the asahi driver. Signed-off-by: Janne Grunau <[email protected]>
AsahiLinux · Sep 23, 2023 · fc4a2ec · fc4a2ec
1 parent 650441d
commit fc4a2ec
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/src/kboot_gpu.c b/src/kboot_gpu.c
@@ -395,6 +395,9 @@ static int dt_set_region(void *dt, int sgx, const char *name, const char *path)
     if (fdt_setprop_inplace(dt, node, "reg", reg, sizeof(reg)))
         bail("FDT: GPU: failed to set reg prop for %s\n", path);
 
+    if (fdt_setprop_empty(dt, node, "no-map"))
+        bail("FDT: GPU: failed to set no-map prop for %s\n", path);
+
     return 0;
 }