added verr, verw, arpl - more precise segment rights checks

[qemu] / softmmu_header.h

diff --git a/softmmu_header.h b/softmmu_header.h
index 12306a6..82aae40 100644 (file)
--- a/softmmu_header.h
+++ b/softmmu_header.h
@@ -19,26 +19,48 @@
  */
 #if DATA_SIZE == 8
 #define SUFFIX q
+#define USUFFIX q
 #define DATA_TYPE uint64_t
 #elif DATA_SIZE == 4
 #define SUFFIX l
+#define USUFFIX l
 #define DATA_TYPE uint32_t
 #elif DATA_SIZE == 2
 #define SUFFIX w
+#define USUFFIX uw
 #define DATA_TYPE uint16_t
 #define DATA_STYPE int16_t
 #elif DATA_SIZE == 1
 #define SUFFIX b
+#define USUFFIX ub
 #define DATA_TYPE uint8_t
 #define DATA_STYPE int8_t
 #else
 #error unsupported data size
 #endif
 
-#if MEMUSER == 0
-#define MEMSUFFIX _kernel
+#if ACCESS_TYPE == 0
+
+#define CPU_MEM_INDEX 0
+#define MMUSUFFIX _mmu
+
+#elif ACCESS_TYPE == 1
+
+#define CPU_MEM_INDEX 1
+#define MMUSUFFIX _mmu
+
+#elif ACCESS_TYPE == 2
+
+#define CPU_MEM_INDEX ((env->hflags & HF_CPL_MASK) == 3)
+#define MMUSUFFIX _mmu
+
+#elif ACCESS_TYPE == 3
+
+#define CPU_MEM_INDEX ((env->hflags & HF_CPL_MASK) == 3)
+#define MMUSUFFIX _cmmu
+
 #else
-#define MEMSUFFIX _user
+#error invalid ACCESS_TYPE
 #endif
 
 #if DATA_SIZE == 8
@@ -48,24 +70,26 @@
 #endif
 
 
-#if MEMUSER == 0
-DATA_TYPE __attribute((regparm(1))) glue(glue(__ld, SUFFIX), _mmu)(unsigned long addr);
-void __attribute((regparm(2))) glue(glue(__st, SUFFIX), _mmu)(unsigned long addr, DATA_TYPE v);
-#endif
+DATA_TYPE REGPARM(1) glue(glue(__ld, SUFFIX), MMUSUFFIX)(unsigned long addr,
+                                                         int is_user);
+void REGPARM(2) glue(glue(__st, SUFFIX), MMUSUFFIX)(unsigned long addr, DATA_TYPE v, int is_user);
 
-static inline int glue(glue(ldu, SUFFIX), MEMSUFFIX)(void *ptr)
+static inline RES_TYPE glue(glue(ld, USUFFIX), MEMSUFFIX)(void *ptr)
 {
     int index;
     RES_TYPE res;
     unsigned long addr, physaddr;
+    int is_user;
+
     addr = (unsigned long)ptr;
     index = (addr >> TARGET_PAGE_BITS) & (CPU_TLB_SIZE - 1);
-    if (__builtin_expect(env->tlb_read[MEMUSER][index].address != 
+    is_user = CPU_MEM_INDEX;
+    if (__builtin_expect(env->tlb_read[is_user][index].address != 
                          (addr & (TARGET_PAGE_MASK | (DATA_SIZE - 1))), 0)) {
-        res = glue(glue(__ld, SUFFIX), _mmu)(addr);
+        res = glue(glue(__ld, SUFFIX), MMUSUFFIX)(addr, is_user);
     } else {
-        physaddr = addr + env->tlb_read[MEMUSER][index].addend;
-        res = glue(glue(ldu, SUFFIX), _raw)((uint8_t *)physaddr);
+        physaddr = addr + env->tlb_read[is_user][index].addend;
+        res = glue(glue(ld, USUFFIX), _raw)((uint8_t *)physaddr);
     }
     return res;
 }
@@ -75,13 +99,16 @@ static inline int glue(glue(lds, SUFFIX), MEMSUFFIX)(void *ptr)
 {
     int res, index;
     unsigned long addr, physaddr;
+    int is_user;
+
     addr = (unsigned long)ptr;
     index = (addr >> TARGET_PAGE_BITS) & (CPU_TLB_SIZE - 1);
-    if (__builtin_expect(env->tlb_read[MEMUSER][index].address != 
+    is_user = CPU_MEM_INDEX;
+    if (__builtin_expect(env->tlb_read[is_user][index].address != 
                          (addr & (TARGET_PAGE_MASK | (DATA_SIZE - 1))), 0)) {
-        res = (DATA_STYPE)glue(glue(__ld, SUFFIX), _mmu)(addr);
+        res = (DATA_STYPE)glue(glue(__ld, SUFFIX), MMUSUFFIX)(addr, is_user);
     } else {
-        physaddr = addr + env->tlb_read[MEMUSER][index].addend;
+        physaddr = addr + env->tlb_read[is_user][index].addend;
         res = glue(glue(lds, SUFFIX), _raw)((uint8_t *)physaddr);
     }
     return res;
@@ -92,13 +119,16 @@ static inline void glue(glue(st, SUFFIX), MEMSUFFIX)(void *ptr, RES_TYPE v)
 {
     int index;
     unsigned long addr, physaddr;
+    int is_user;
+
     addr = (unsigned long)ptr;
     index = (addr >> TARGET_PAGE_BITS) & (CPU_TLB_SIZE - 1);
-    if (__builtin_expect(env->tlb_write[MEMUSER][index].address != 
+    is_user = CPU_MEM_INDEX;
+    if (__builtin_expect(env->tlb_write[is_user][index].address != 
                          (addr & (TARGET_PAGE_MASK | (DATA_SIZE - 1))), 0)) {
-        glue(glue(__st, SUFFIX), _mmu)(addr, v);
+        glue(glue(__st, SUFFIX), MMUSUFFIX)(addr, v, is_user);
     } else {
-        physaddr = addr + env->tlb_write[MEMUSER][index].addend;
+        physaddr = addr + env->tlb_write[is_user][index].addend;
         glue(glue(st, SUFFIX), _raw)((uint8_t *)physaddr, v);
     }
 }
@@ -107,5 +137,7 @@ static inline void glue(glue(st, SUFFIX), MEMSUFFIX)(void *ptr, RES_TYPE v)
 #undef DATA_TYPE
 #undef DATA_STYPE
 #undef SUFFIX
+#undef USUFFIX
 #undef DATA_SIZE
-#undef MEMSUFFIX
+#undef CPU_MEM_INDEX
+#undef MMUSUFFIX