Make a Kconfig option for debugging output from realmode emulation. Trivial.

Signed-off-by: Myles Watson <mylesgw@gmail.com>
Acked-by: Myles Watson <mylesgw@gmail.com>


git-svn-id: svn://svn.coreboot.org/coreboot/trunk@5783 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1

src/Kconfig

@@ -543,6 +543,17 @@ config DEBUG_SMM_RELOCATION
 
 	  If unsure, say N.
 
+config REALMODE_DEBUG
+	bool "Enable debug messages for option ROM execution"
+	default n
+	depends on PCI_OPTION_ROM_RUN_REALMODE
+	help
+	  This option enables additional x86emu related debug messages.
+
+	  Note: This option will increase the time to emulate a ROM.
+
+	  If unsure, say N.
+
 config X86EMU_DEBUG
 	bool "Output verbose x86emu debug messages"
 	default n

src/devices/oprom/x86.c

@@ -329,6 +329,7 @@ int __attribute__((regparm(0))) interrupt_handler(u32 intnumber,
 	cs = cs_ip >> 16;
 	flags = stackflags;
 
+#if CONFIG_REALMODE_DEBUG
 	printk(BIOS_DEBUG, "oprom: INT# 0x%x\n", intnumber);
 	printk(BIOS_DEBUG, "oprom: eax: %08x ebx: %08x ecx: %08x edx: %08x\n",
 		      eax, ebx, ecx, edx);
@@ -336,6 +337,7 @@ int __attribute__((regparm(0))) interrupt_handler(u32 intnumber,
 		     ebp, esp, edi, esi);
 	printk(BIOS_DEBUG, "oprom:  ip: %04x      cs: %04x   flags: %08x\n",
 		     ip, cs, flags);
+#endif
 
 	// Fetch arguments from the stack and put them into
 	// a structure that we want to pass on to our sub interrupt

src/devices/oprom/x86_interrupts.c

@@ -156,8 +156,10 @@ int int1a_handler(struct eregs *regs)
 			break;
 		}
 
+#if CONFIG_REALMODE_DEBUG
 		printk(BIOS_DEBUG, "0x%x: bus %d devfn 0x%x reg 0x%x val 0x%x\n",
 			     func, bus, devfn, reg, regs->ecx);
+#endif
 		regs->eax = 0;
 		retval = 0;
 		break;