x86: Add a function to boot a zimage
Add a direct interface to booting a zimage, so that bootstd can call it
without going through the command-line interface.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
diff --git a/arch/x86/include/asm/zimage.h b/arch/x86/include/asm/zimage.h
index 000b38e..966d722 100644
--- a/arch/x86/include/asm/zimage.h
+++ b/arch/x86/include/asm/zimage.h
@@ -72,4 +72,21 @@
*/
void zimage_dump(struct boot_params *base_ptr);
+/**
+ * zboot_start() - Boot a zimage
+ *
+ * Boot a zimage, given the component parts
+ *
+ * @addr: Address where the bzImage is moved before booting, either
+ * BZIMAGE_LOAD_ADDR or ZIMAGE_LOAD_ADDR
+ * @base: Pointer to the boot parameters, typically at address
+ * DEFAULT_SETUP_BASE
+ * @initrd: Address of the initial ramdisk, or 0 if none
+ * @initrd_size: Size of the initial ramdisk, or 0 if none
+ * @cmdline: Command line to use for booting
+ * Return: -EFAULT on error (normally it does not return)
+ */
+int zboot_start(ulong addr, ulong size, ulong initrd, ulong initrd_size,
+ ulong base, char *cmdline);
+
#endif