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git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@405 c046a42c-6fe2-441c-8c8c-71466251a162
2003-10-27 21:12:17 +00:00 · 2003-10-27 21:12:17 +00:00 · db8d746688
commit db8d746688
parent 997344f303
1 changed files with 9 additions and 2 deletions
--- a/cpu-defs.h
+++ b/cpu-defs.h
@ -32,8 +32,15 @@
 #define CPU_TLB_SIZE 256

 typedef struct CPUTLBEntry {
-    uint32_t address;
-    uint32_t addend;
+    /* bit 31 to TARGET_PAGE_BITS : virtual address 
+       bit TARGET_PAGE_BITS-1..IO_MEM_SHIFT : if non zero, memory io
+                                              zone number
+       bit 3                      : indicates that the entry is invalid
+       bit 2..0                   : zero
+    */
+    uint32_t address; 
+    /* addend to virtual address to get physical address */
+    uint32_t addend; 
 } CPUTLBEntry;

 #endif