Add qemu 2.4.0

[kvmfornfv.git] / qemu / roms / SLOF / clients / net-snk / kernel / init.c

diff --git a/qemu/roms/SLOF/clients/net-snk/kernel/init.c b/qemu/roms/SLOF/clients/net-snk/kernel/init.c
new file mode 100644 (file)
index 0000000..1376b64
--- /dev/null
+++ b/qemu/roms/SLOF/clients/net-snk/kernel/init.c
@@ -0,0 +1,67 @@
+/******************************************************************************
+ * Copyright (c) 2004, 2008 IBM Corporation
+ * All rights reserved.
+ * This program and the accompanying materials
+ * are made available under the terms of the BSD License
+ * which accompanies this distribution, and is available at
+ * http://www.opensource.org/licenses/bsd-license.php
+ *
+ * Contributors:
+ *     IBM Corporation - initial implementation
+ *****************************************************************************/
+
+#include <stdint.h>
+#include <string.h>
+#include <stdlib.h> /* malloc */
+#include <of.h>
+#include <pci.h>
+#include <kernel.h>
+#include <cpu.h>
+#include <fileio.h>
+
+/* Application entry point .*/
+extern int _start(unsigned char *arg_string, long len);
+extern int main(int, char**);
+int _start_kernel(unsigned long p0, unsigned long p1);
+void * malloc_aligned(size_t size, int align);
+
+unsigned long exception_stack_frame;
+
+snk_fileio_t fd_array[FILEIO_MAX];
+
+extern uint64_t tb_freq;
+
+extern char __client_start;
+extern char __client_end;
+
+void * malloc_aligned(size_t size, int align)
+{
+       unsigned long p = (unsigned long) malloc(size + align - 1);
+       p = p + align - 1;
+       p = p & ~(align - 1);
+
+       return (void *) p;
+}
+
+int _start_kernel(unsigned long p0, unsigned long p1)
+{
+       int rc;
+       unsigned int timebase;
+
+       /* initialize all file descriptor by marking them as empty */
+       for(rc=0; rc<FILEIO_MAX; ++rc)
+               fd_array[rc].type = FILEIO_TYPE_EMPTY;
+
+       /* this is step is e.g. resposible to initialize file descriptor 0 and 1 for STDIO */
+       rc = of_glue_init(&timebase, (size_t)(unsigned long)&__client_start,
+                         (size_t)(unsigned long)&__client_end - (size_t)(unsigned long)&__client_start);
+       if(rc < 0)
+               return -1;
+
+       tb_freq = (uint64_t) timebase;
+       rc = _start((unsigned char *) p0, p1);
+
+       of_glue_release();
+       return rc;
+}
+