Implement !CONFIG_OPTIONROMS support for CSM

Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>

diff --git a/src/csm.c b/src/csm.c
index 45ca941984eb7a5099cb0a4891090c186ac02d1a..6e48bc6f35adb3862ba98ad06f44ab709566bf00 100644 (file)
--- a/src/csm.c
+++ b/src/csm.c
@@ -187,6 +187,11 @@ handle_csm_0005(struct bregs *regs)
     struct rom_header *rom;
     u16 bdf;
 
+    if (!CONFIG_OPTIONROMS) {
+        regs->ax = 1;
+        return;
+    }
+
     dprintf(3, "Legacy16DispatchOprom rom %p\n", table);
 
     dprintf(3, "OpromSegment   %04x\n", table->OpromSegment);