2 files changed, 39 insertions, 0 deletions

diff --git a/sys/boot/common/bootstrap.h b/sys/boot/common/bootstrap.h
index 516b8a5..78b3895 100644
--- a/sys/boot/common/bootstrap.h
+++ b/sys/boot/common/bootstrap.h
@@ -237,6 +237,8 @@ void file_discard(struct preloaded_file *fp);
 void file_addmetadata(struct preloaded_file *fp, int type, size_t size, void *p);
 int  file_addmodule(struct preloaded_file *fp, char *modname, int version,
 	struct kernel_module **newmp);
+/* Load from a buffer in memory. */
+struct preloaded_file *mem_load_raw(char *type, char *name, const void *p, size_t len);
 
 /* MI module loaders */
 #ifdef __elfN
diff --git a/sys/boot/common/module.c b/sys/boot/common/module.c
index 96c0a58..3b74ab7 100644
--- a/sys/boot/common/module.c
+++ b/sys/boot/common/module.c
@@ -351,6 +351,7 @@ file_load_dependencies(struct preloaded_file *base_file)
     }
     return (error);
 }
+
 /*
  * We've been asked to load (name) as (type), so just suck it in,
  * no arguments or anything.
@@ -421,6 +422,42 @@ file_loadraw(char *type, char *name)
 }
 
 /*
+ * Load a chunk of data as if it had been read from a file.
+ */
+struct preloaded_file *
+mem_load_raw(char *type, char *name, const void *p, size_t len)
+{
+    struct preloaded_file	*fp;
+
+    /* We can't load first */
+    if ((file_findfile(NULL, NULL)) == NULL) {
+	command_errmsg = "can't load file before kernel";
+	return(NULL);
+    }
+
+    if (archsw.arch_loadaddr != NULL)
+	loadaddr = archsw.arch_loadaddr(LOAD_RAW, name, loadaddr);
+    archsw.arch_copyin(p, loadaddr, len);
+    
+    /* Looks OK so far; create & populate control structure */
+    fp = file_alloc();
+    fp->f_name = strdup(name);
+    fp->f_type = strdup(type);
+    fp->f_args = NULL;
+    fp->f_metadata = NULL;
+    fp->f_loader = -1;
+    fp->f_addr = loadaddr;
+    fp->f_size = len;
+
+    /* recognise space consumption */
+    loadaddr += len;
+
+    /* Add to the list of loaded files */
+    file_insert_tail(fp);
+    return fp;
+}
+
+/*
  * Load the module (name), pass it (argc),(argv), add container file
  * to the list of loaded files.
  * If module is already loaded just assign new argc/argv.