From 9196e9069ccd5b0f1729ca1c259f5688923df5bb Mon Sep 17 00:00:00 2001
From: Michael Brown <mcb30@etherboot.org>
Date: Thu, 11 Jan 2007 18:40:46 +0000
Subject: [PATCH] Add PHYS_CODE, for use as in __asm__ ( PHYS_CODE ( ... ) ),
 comparable to the REAL_CODE interface.

---
 src/arch/i386/include/librm.h | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/src/arch/i386/include/librm.h b/src/arch/i386/include/librm.h
index 7fc79517..19966c6d 100644
--- a/src/arch/i386/include/librm.h
+++ b/src/arch/i386/include/librm.h
@@ -248,6 +248,12 @@ extern void remove_from_rm_stack ( void *data, size_t size );
 		      "\n\t"				\
 		      "ret\n\t" )
 
+/* PHYS_CODE: declare a fragment of code that executes in flat physical mode */
+#define PHYS_CODE( asm_code_str )			\
+	"call _virt_to_phys\n\t"			\
+	asm_code_str					\
+	"call _phys_to_virt\n\t"
+
 #endif /* ASSEMBLY */
 
 #endif /* LIBRM_H */