Add MSR bits signification per PowerPC implementation flags (to be continued).

As a side effect, single step and branch step are available again.
Remove irrelevant MSR bits definitions.


git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3342 c046a42c-6fe2-441c-8c8c-71466251a162

4 files changed, 122 insertions, 61 deletions

diff --git a/target-ppc/cpu.h b/target-ppc/cpu.h
index 5824526..8a24d4d 100644
--- a/target-ppc/cpu.h
+++ b/target-ppc/cpu.h
@@ -347,40 +347,37 @@ union ppc_tlb_t {
 #define MSR_CM   31 /* Computation mode for BookE                     hflags */
 #define MSR_ICM  30 /* Interrupt computation mode for BookE                  */
 #define MSR_UCLE 26 /* User-mode cache lock enable for BookE                 */
-#define MSR_VR   25 /* altivec available                              hflags */
-#define MSR_SPE  25 /* SPE enable for BookE                           hflags */
+#define MSR_VR   25 /* altivec available                            x hflags */
+#define MSR_SPE  25 /* SPE enable for BookE                         x hflags */
 #define MSR_AP   23 /* Access privilege state on 602                  hflags */
 #define MSR_SA   22 /* Supervisor access mode on 602                  hflags */
 #define MSR_KEY  19 /* key bit on 603e                                       */
-#define MSR_POW  18 /* Power management                                      */
-#define MSR_WE   18 /* Wait state enable on embedded PowerPC                 */
-#define MSR_TGPR 17 /* TGPR usage on 602/603                                 */
-#define MSR_TLB  17 /* TLB update on ?                                       */
-#define MSR_CE   17 /* Critical interrupt enable on embedded PowerPC         */
+#define MSR_POW  18 /* Power management                             x        */
+#define MSR_WE   18 /* Wait state enable on embedded PowerPC        x        */
+#define MSR_TGPR 17 /* TGPR usage on 602/603                        x        */
+#define MSR_CE   17 /* Critical interrupt enable on embedded PowerPC x       */
 #define MSR_ILE  16 /* Interrupt little-endian mode                          */
 #define MSR_EE   15 /* External interrupt enable                             */
 #define MSR_PR   14 /* Problem state                                  hflags */
 #define MSR_FP   13 /* Floating point available                       hflags */
 #define MSR_ME   12 /* Machine check interrupt enable                        */
 #define MSR_FE0  11 /* Floating point exception mode 0                hflags */
-#define MSR_SE   10 /* Single-step trace enable                       hflags */
-#define MSR_DWE  10 /* Debug wait enable on 405                              */
-#define MSR_UBLE 10 /* User BTB lock enable on e500                          */
-#define MSR_BE   9  /* Branch trace enable                            hflags */
-#define MSR_DE   9  /* Debug interrupts enable on embedded PowerPC           */
+#define MSR_SE   10 /* Single-step trace enable                     x hflags */
+#define MSR_DWE  10 /* Debug wait enable on 405                     x        */
+#define MSR_UBLE 10 /* User BTB lock enable on e500                 x        */
+#define MSR_BE   9  /* Branch trace enable                          x hflags */
+#define MSR_DE   9  /* Debug interrupts enable on embedded PowerPC  x        */
 #define MSR_FE1  8  /* Floating point exception mode 1                hflags */
 #define MSR_AL   7  /* AL bit on POWER                                       */
 #define MSR_IP   6  /* Interrupt prefix                                      */
 #define MSR_IR   5  /* Instruction relocate                                  */
-#define MSR_IS   5  /* Instruction address space on embedded PowerPC         */
 #define MSR_DR   4  /* Data relocate                                         */
-#define MSR_DS   4  /* Data address space on embedded PowerPC                */
-#define MSR_PE   3  /* Protection enable on 403                              */
-#define MSR_EP   3  /* Exception prefix on 601                               */
-#define MSR_PX   2  /* Protection exclusive on 403                           */
-#define MSR_PMM  2  /* Performance monitor mark on POWER                     */
-#define MSR_RI   1  /* Recoverable interrupt                                 */
-#define MSR_LE   0  /* Little-endian mode                             hflags */
+#define MSR_PE   3  /* Protection enable on 403                     x        */
+#define MSR_EP   3  /* Exception prefix on 601                      x        */
+#define MSR_PX   2  /* Protection exclusive on 403                  x        */
+#define MSR_PMM  2  /* Performance monitor mark on POWER            x        */
+#define MSR_RI   1  /* Recoverable interrupt                        1        */
+#define MSR_LE   0  /* Little-endian mode                           1 hflags */
 #define msr_sf   env->msr[MSR_SF]
 #define msr_isf  env->msr[MSR_ISF]
 #define msr_hv   env->msr[MSR_HV]
@@ -395,7 +392,6 @@ union ppc_tlb_t {
 #define msr_pow  env->msr[MSR_POW]
 #define msr_we   env->msr[MSR_WE]
 #define msr_tgpr env->msr[MSR_TGPR]
-#define msr_tlb  env->msr[MSR_TLB]
 #define msr_ce   env->msr[MSR_CE]
 #define msr_ile  env->msr[MSR_ILE]
 #define msr_ee   env->msr[MSR_EE]
@@ -412,9 +408,7 @@ union ppc_tlb_t {
 #define msr_al   env->msr[MSR_AL]
 #define msr_ip   env->msr[MSR_IP]
 #define msr_ir   env->msr[MSR_IR]
-#define msr_is   env->msr[MSR_IS]
 #define msr_dr   env->msr[MSR_DR]
-#define msr_ds   env->msr[MSR_DS]
 #define msr_pe   env->msr[MSR_PE]
 #define msr_ep   env->msr[MSR_EP]
 #define msr_px   env->msr[MSR_PX]
@@ -422,6 +416,33 @@ union ppc_tlb_t {
 #define msr_ri   env->msr[MSR_RI]
 #define msr_le   env->msr[MSR_LE]
 
+enum {
+    /* Beware that MSR bits are given using IBM standard (ie MSB is 0 !)     */
+    POWERPC_FLAG_NONE = 0x00000000,
+    /* Flag for MSR bit 25 signification (VRE/SPE)                           */
+    POWERPC_FLAG_SPE  = 0x00000001,
+    POWERPC_FLAG_VRE  = 0x00000002,
+    /* Flag for MSR bit 18 may not be needed...                              */
+    POWERPC_FLAG_POW  = 0x00000004,
+    POWERPC_FLAG_WE   = 0x00000008,
+    /* Flag for MSR bit 17 signification (TGPR/CE)                           */
+    POWERPC_FLAG_TGPR = 0x00000010,
+    POWERPC_FLAG_CE   = 0x00000020,
+    /* Flag for MSR bit 10 signification (SE/DWE/UBLE)                       */
+    POWERPC_FLAG_SE   = 0x00000040,
+    POWERPC_FLAG_DWE  = 0x00000080,
+    POWERPC_FLAG_UBLE = 0x00000100,
+    /* Flag for MSR bit 9 signification (BE/DE)                              */
+    POWERPC_FLAG_BE   = 0x00000200,
+    POWERPC_FLAG_DE   = 0x00000400,
+    /* Flag for MSR bit 3 signification (PE/EP)                              */
+    POWERPC_FLAG_PE   = 0x00000800,
+    POWERPC_FLAG_EP   = 0x00001000,
+    /* Flag for MSR but 2 signification (PX/PMM)                             */
+    POWERPC_FLAG_PX   = 0x00002000,
+    POWERPC_FLAG_PMM  = 0x00004000,
+};
+
 /*****************************************************************************/
 /* The whole PowerPC CPU context */
 struct CPUPPCState {
diff --git a/target-ppc/helper.c b/target-ppc/helper.c
index bb39fc0..f1fe680 100644
--- a/target-ppc/helper.c
+++ b/target-ppc/helper.c
@@ -1183,7 +1183,7 @@ int mmubooke_get_physical_address (CPUState *env, mmu_ctx_t *ctx,
             prot = (tlb->prot >> 4) & 0xF;
         /* Check the address space */
         if (access_type == ACCESS_CODE) {
-            if (msr_is != (tlb->attr & 1))
+            if (msr_ir != (tlb->attr & 1))
                 continue;
             ctx->prot = prot;
             if (prot & PAGE_EXEC) {
@@ -1192,7 +1192,7 @@ int mmubooke_get_physical_address (CPUState *env, mmu_ctx_t *ctx,
             }
             ret = -3;
         } else {
-            if (msr_ds != (tlb->attr & 1))
+            if (msr_dr != (tlb->attr & 1))
                 continue;
             ctx->prot = prot;
             if ((!rw && prot & PAGE_READ) || (rw && (prot & PAGE_WRITE))) {
@@ -1964,7 +1964,7 @@ target_ulong do_load_msr (CPUPPCState *env)
         ((target_ulong)msr_sa   << MSR_SA)   |
         ((target_ulong)msr_key  << MSR_KEY)  |
         ((target_ulong)msr_pow  << MSR_POW)  | /* POW / WE */
-        ((target_ulong)msr_tlb  << MSR_TLB)  | /* TLB / TGPE / CE */
+        ((target_ulong)msr_tgpr << MSR_TGPR) | /* TGPR / CE */
         ((target_ulong)msr_ile  << MSR_ILE)  |
         ((target_ulong)msr_ee   << MSR_EE)   |
         ((target_ulong)msr_pr   << MSR_PR)   |
@@ -2000,18 +2000,10 @@ int do_store_msr (CPUPPCState *env, target_ulong value)
         fprintf(logfile, "%s: T0 %08lx\n", __func__, value);
     }
 #endif
-    switch (env->excp_model) {
-    case POWERPC_EXCP_602:
-    case POWERPC_EXCP_603:
-    case POWERPC_EXCP_603E:
-    case POWERPC_EXCP_G2:
-        if (((value >> MSR_TGPR) & 1) != msr_tgpr) {
-            /* Swap temporary saved registers with GPRs */
-            swap_gpr_tgpr(env);
-        }
-        break;
-    default:
-        break;
+    if (unlikely((env->flags & POWERPC_FLAG_TGPR) &&
+                 ((value >> MSR_TGPR) & 1) != msr_tgpr)) {
+        /* Swap temporary saved registers with GPRs */
+        swap_gpr_tgpr(env);
     }
 #if defined (TARGET_PPC64)
     msr_sf   = (value >> MSR_SF)   & 1;
@@ -2024,7 +2016,7 @@ int do_store_msr (CPUPPCState *env, target_ulong value)
     msr_sa   = (value >> MSR_SA)   & 1;
     msr_key  = (value >> MSR_KEY)  & 1;
     msr_pow  = (value >> MSR_POW)  & 1; /* POW / WE */
-    msr_tlb  = (value >> MSR_TLB)  & 1; /* TLB / TGPR / CE */
+    msr_tgpr = (value >> MSR_TGPR) & 1; /* TGPR / CE */
     msr_ile  = (value >> MSR_ILE)  & 1;
     msr_ee   = (value >> MSR_EE)   & 1;
     msr_pr   = (value >> MSR_PR)   & 1;
diff --git a/target-ppc/translate.c b/target-ppc/translate.c
index bc6336b..f30cb41 100644
--- a/target-ppc/translate.c
+++ b/target-ppc/translate.c
@@ -6514,6 +6514,7 @@ static inline int gen_intermediate_code_internal (CPUState *env,
     target_ulong pc_start;
     uint16_t *gen_opc_end;
     int supervisor;
+    int single_step, branch_step;
     int j, lj = -1;
 
     pc_start = tb->pc;
@@ -6545,9 +6546,20 @@ static inline int gen_intermediate_code_internal (CPUState *env,
     ctx.dcache_line_size = env->dcache_line_size;
     ctx.fpu_enabled = msr_fp;
 #if defined(TARGET_PPCEMB)
-    ctx.spe_enabled = msr_spe;
+    if (env->flags & POWERPC_FLAG_SPE)
+        ctx.spe_enabled = msr_spe;
+    else
+        ctx.spe_enabled = 0;
 #endif
-    ctx.singlestep_enabled = env->singlestep_enabled;
+    if ((env->flags & POWERPC_FLAG_SE) && msr_se)
+        single_step = 1;
+    else
+        single_step = 0;
+    if ((env->flags & POWERPC_FLAG_BE) && msr_be)
+        branch_step = 1;
+    else
+        branch_step = 0;
+    ctx.singlestep_enabled = env->singlestep_enabled || single_step == 1;;
 #if defined (DO_SINGLE_STEP) && 0
     /* Single step trace mode */
     msr_se = 1;
@@ -6642,30 +6654,24 @@ static inline int gen_intermediate_code_internal (CPUState *env,
         handler->count++;
 #endif
         /* Check trace mode exceptions */
-#if 0 // XXX: buggy on embedded PowerPC
-        if (unlikely((msr_be && ctx.exception == POWERPC_EXCP_BRANCH) ||
-                     /* Check in single step trace mode
-                      * we need to stop except if:
-                      * - rfi, trap or syscall
-                      * - first instruction of an exception handler
-                      */
-                     (msr_se && (ctx.nip < 0x100 ||
-                                 ctx.nip > 0xF00 ||
-                                 (ctx.nip & 0xFC) != 0x04) &&
+        if (unlikely(branch_step != 0 &&
+                     ctx.exception == POWERPC_EXCP_BRANCH)) {
+            GEN_EXCP(ctxp, POWERPC_EXCP_TRACE, 0);
+        } else if (unlikely(single_step != 0 &&
+                            (ctx.nip <= 0x100 || ctx.nip > 0xF00 ||
+                             (ctx.nip & 0xFC) != 0x04) &&
 #if defined(CONFIG_USER_ONLY)
-                      ctx.exception != POWERPC_EXCP_SYSCALL_USER &&
+                            ctx.exception != POWERPC_EXCP_SYSCALL_USER &&
 #else
-                      ctx.exception != POWERPC_EXCP_SYSCALL &&
+                            ctx.exception != POWERPC_EXCP_SYSCALL &&
 #endif
-                      ctx.exception != POWERPC_EXCP_TRAP))) {
+                            ctx.exception != POWERPC_EXCP_TRAP)) {
             GEN_EXCP(ctxp, POWERPC_EXCP_TRACE, 0);
-        }
-#endif
-        /* if we reach a page boundary or are single stepping, stop
-         * generation
-         */
-        if (unlikely(((ctx.nip & (TARGET_PAGE_SIZE - 1)) == 0) ||
-                     (env->singlestep_enabled))) {
+        } else if (unlikely(((ctx.nip & (TARGET_PAGE_SIZE - 1)) == 0) ||
+                            (env->singlestep_enabled))) {
+            /* if we reach a page boundary or are single stepping, stop
+             * generation
+             */
             break;
         }
 #if defined (DO_SINGLE_STEP)
diff --git a/target-ppc/translate_init.c b/target-ppc/translate_init.c
index 8bc6209..296727e 100644
--- a/target-ppc/translate_init.c
+++ b/target-ppc/translate_init.c
@@ -39,6 +39,7 @@ struct ppc_def_t {
     uint8_t excp_model;
     uint8_t bus_model;
     uint8_t pad;
+    uint32_t flags;
     int bfd_mach;
     void (*init_proc)(CPUPPCState *env);
 };
@@ -2581,6 +2582,7 @@ static void init_excp_970 (CPUPPCState *env)
 #define POWERPC_EXCP_401     (POWERPC_EXCP_40x)
 #define POWERPC_INPUT_401    (PPC_FLAGS_INPUT_401)
 #define POWERPC_BFDM_401     (bfd_mach_ppc_403)
+#define POWERPC_FLAG_401     (POWERPC_FLAG_NONE)
 
 static void init_proc_401 (CPUPPCState *env)
 {
@@ -2605,6 +2607,7 @@ static void init_proc_401 (CPUPPCState *env)
 #define POWERPC_EXCP_401x2   (POWERPC_EXCP_40x)
 #define POWERPC_INPUT_401x2  (PPC_FLAGS_INPUT_401)
 #define POWERPC_BFDM_401x2   (bfd_mach_ppc_403)
+#define POWERPC_FLAG_401x2   (POWERPC_FLAG_NONE)
 
 static void init_proc_401x2 (CPUPPCState *env)
 {
@@ -2634,6 +2637,7 @@ static void init_proc_401x2 (CPUPPCState *env)
 #define POWERPC_EXCP_401x3   (POWERPC_EXCP_40x)
 #define POWERPC_INPUT_401x3  (PPC_FLAGS_INPUT_401)
 #define POWERPC_BFDM_401x3   (bfd_mach_ppc_403)
+#define POWERPC_FLAG_401x3   (POWERPC_FLAG_NONE)
 
 __attribute__ (( unused ))
 static void init_proc_401x3 (CPUPPCState *env)
@@ -2661,6 +2665,7 @@ static void init_proc_401x3 (CPUPPCState *env)
 #define POWERPC_EXCP_IOP480  (POWERPC_EXCP_40x)
 #define POWERPC_INPUT_IOP480 (PPC_FLAGS_INPUT_401)
 #define POWERPC_BFDM_IOP480  (bfd_mach_ppc_403)
+#define POWERPC_FLAG_IOP480  (POWERPC_FLAG_NONE)
 
 static void init_proc_IOP480 (CPUPPCState *env)
 {
@@ -2689,6 +2694,7 @@ static void init_proc_IOP480 (CPUPPCState *env)
 #define POWERPC_EXCP_403     (POWERPC_EXCP_40x)
 #define POWERPC_INPUT_403    (PPC_FLAGS_INPUT_401)
 #define POWERPC_BFDM_403     (bfd_mach_ppc_403)
+#define POWERPC_FLAG_403     (POWERPC_FLAG_NONE)
 
 static void init_proc_403 (CPUPPCState *env)
 {
@@ -2717,6 +2723,7 @@ static void init_proc_403 (CPUPPCState *env)
 #define POWERPC_EXCP_403GCX  (POWERPC_EXCP_40x)
 #define POWERPC_INPUT_403GCX (PPC_FLAGS_INPUT_401)
 #define POWERPC_BFDM_403GCX  (bfd_mach_ppc_403)
+#define POWERPC_FLAG_403GCX  (POWERPC_FLAG_NONE)
 
 static void init_proc_403GCX (CPUPPCState *env)
 {
@@ -2758,6 +2765,7 @@ static void init_proc_403GCX (CPUPPCState *env)
 #define POWERPC_EXCP_405     (POWERPC_EXCP_40x)
 #define POWERPC_INPUT_405    (PPC_FLAGS_INPUT_405)
 #define POWERPC_BFDM_405     (bfd_mach_ppc_403)
+#define POWERPC_FLAG_405     (POWERPC_FLAG_NONE)
 
 static void init_proc_405 (CPUPPCState *env)
 {
@@ -2797,6 +2805,7 @@ static void init_proc_405 (CPUPPCState *env)
 #define POWERPC_EXCP_440EP   (POWERPC_EXCP_BOOKE)
 #define POWERPC_INPUT_440EP  (PPC_FLAGS_INPUT_BookE)
 #define POWERPC_BFDM_440EP   (bfd_mach_ppc_403)
+#define POWERPC_FLAG_440EP   (POWERPC_FLAG_NONE)
 
 static void init_proc_440EP (CPUPPCState *env)
 {
@@ -2842,6 +2851,7 @@ static void init_proc_440EP (CPUPPCState *env)
 #define POWERPC_EXCP_440GP   (POWERPC_EXCP_BOOKE)
 #define POWERPC_INPUT_440GP  (PPC_FLAGS_INPUT_BookE)
 #define POWERPC_BFDM_440GP   (bfd_mach_ppc_403)
+#define POWERPC_FLAG_440GP   (POWERPC_FLAG_NONE)
 
 static void init_proc_440GP (CPUPPCState *env)
 {
@@ -2869,6 +2879,7 @@ static void init_proc_440GP (CPUPPCState *env)
 #define POWERPC_EXCP_440x4   (POWERPC_EXCP_BOOKE)
 #define POWERPC_INPUT_440x4  (PPC_FLAGS_INPUT_BookE)
 #define POWERPC_BFDM_440x4   (bfd_mach_ppc_403)
+#define POWERPC_FLAG_440x4   (POWERPC_FLAG_NONE)
 
 __attribute__ (( unused ))
 static void init_proc_440x4 (CPUPPCState *env)
@@ -2897,6 +2908,7 @@ static void init_proc_440x4 (CPUPPCState *env)
 #define POWERPC_EXCP_440x5   (POWERPC_EXCP_BOOKE)
 #define POWERPC_INPUT_440x5  (PPC_FLAGS_INPUT_BookE)
 #define POWERPC_BFDM_440x5   (bfd_mach_ppc_403)
+#define POWERPC_FLAG_440x5   (POWERPC_FLAG_NONE)
 
 static void init_proc_440x5 (CPUPPCState *env)
 {
@@ -2942,6 +2954,7 @@ static void init_proc_440x5 (CPUPPCState *env)
 #define POWERPC_EXCP_460     (POWERPC_EXCP_BOOKE)
 #define POWERPC_INPUT_460    (PPC_FLAGS_INPUT_BookE)
 #define POWERPC_BFDM_460     (bfd_mach_ppc_403)
+#define POWERPC_FLAG_460     (POWERPC_FLAG_NONE)
 
 __attribute__ (( unused ))
 static void init_proc_460 (CPUPPCState *env)
@@ -2996,6 +3009,7 @@ static void init_proc_460 (CPUPPCState *env)
 #define POWERPC_EXCP_460F    (POWERPC_EXCP_BOOKE)
 #define POWERPC_INPUT_460F   (PPC_FLAGS_INPUT_BookE)
 #define POWERPC_BFDM_460F    (bfd_mach_ppc_403)
+#define POWERPC_FLAG_460F    (POWERPC_FLAG_NONE)
 
 __attribute__ (( unused ))
 static void init_proc_460F (CPUPPCState *env)
@@ -3050,6 +3064,7 @@ static void init_proc_460F (CPUPPCState *env)
 #define POWERPC_EXCP_BookE   (POWERPC_EXCP_BOOKE)
 #define POWERPC_INPUT_BookE  (PPC_FLAGS_INPUT_BookE)
 #define POWERPC_BFDM_BookE   (bfd_mach_ppc_403)
+#define POWERPC_FLAG_BookE   (POWERPC_FLAG_NONE)
 
 __attribute__ (( unused ))
 static void init_proc_BookE (CPUPPCState *env)
@@ -3072,6 +3087,7 @@ static void init_proc_BookE (CPUPPCState *env)
 #define POWERPC_EXCP_e500    (POWERPC_EXCP_40x)
 #define POWERPC_INPUT_e500   (PPC_FLAGS_INPUT_BookE)
 #define POWERPC_BFDM_e500    (bfd_mach_ppc_403)
+#define POWERPC_FLAG_e500    (POWERPC_FLAG_SPE)
 
 __attribute__ (( unused ))
 static void init_proc_e500 (CPUPPCState *env)
@@ -3118,6 +3134,7 @@ static void init_proc_e500 (CPUPPCState *env)
 //#define POWERPC_EXCP_601     (POWERPC_EXCP_601)
 #define POWERPC_INPUT_601    (PPC_FLAGS_INPUT_6xx)
 #define POWERPC_BFDM_601     (bfd_mach_ppc_601)
+#define POWERPC_FLAG_601     (POWERPC_FLAG_NONE)
 
 static void init_proc_601 (CPUPPCState *env)
 {
@@ -3171,6 +3188,7 @@ static void init_proc_601 (CPUPPCState *env)
 //#define POWERPC_EXCP_602     (POWERPC_EXCP_602)
 #define POWERPC_INPUT_602    (PPC_FLAGS_INPUT_6xx)
 #define POWERPC_BFDM_602     (bfd_mach_ppc_602)
+#define POWERPC_FLAG_602     (POWERPC_FLAG_TGPR)
 
 static void init_proc_602 (CPUPPCState *env)
 {
@@ -3206,6 +3224,7 @@ static void init_proc_602 (CPUPPCState *env)
 //#define POWERPC_EXCP_603     (POWERPC_EXCP_603)
 #define POWERPC_INPUT_603    (PPC_FLAGS_INPUT_6xx)
 #define POWERPC_BFDM_603     (bfd_mach_ppc_603)
+#define POWERPC_FLAG_603     (POWERPC_FLAG_TGPR)
 
 static void init_proc_603 (CPUPPCState *env)
 {
@@ -3241,6 +3260,7 @@ static void init_proc_603 (CPUPPCState *env)
 //#define POWERPC_EXCP_603E    (POWERPC_EXCP_603E)
 #define POWERPC_INPUT_603E   (PPC_FLAGS_INPUT_6xx)
 #define POWERPC_BFDM_603E    (bfd_mach_ppc_ec603e)
+#define POWERPC_FLAG_603E    (POWERPC_FLAG_TGPR)
 
 static void init_proc_603E (CPUPPCState *env)
 {
@@ -3281,6 +3301,7 @@ static void init_proc_603E (CPUPPCState *env)
 //#define POWERPC_EXCP_G2      (POWERPC_EXCP_G2)
 #define POWERPC_INPUT_G2     (PPC_FLAGS_INPUT_6xx)
 #define POWERPC_BFDM_G2      (bfd_mach_ppc_ec603e)
+#define POWERPC_FLAG_G2      (POWERPC_FLAG_TGPR)
 
 static void init_proc_G2 (CPUPPCState *env)
 {
@@ -3323,6 +3344,7 @@ static void init_proc_G2 (CPUPPCState *env)
 #define POWERPC_EXCP_G2LE    (POWERPC_EXCP_G2)
 #define POWERPC_INPUT_G2LE   (PPC_FLAGS_INPUT_6xx)
 #define POWERPC_BFDM_G2LE    (bfd_mach_ppc_ec603e)
+#define POWERPC_FLAG_G2LE    (POWERPC_FLAG_TGPR)
 
 static void init_proc_G2LE (CPUPPCState *env)
 {
@@ -3365,6 +3387,7 @@ static void init_proc_G2LE (CPUPPCState *env)
 //#define POWERPC_EXCP_604     (POWERPC_EXCP_604)
 #define POWERPC_INPUT_604    (PPC_FLAGS_INPUT_6xx)
 #define POWERPC_BFDM_604     (bfd_mach_ppc_604)
+#define POWERPC_FLAG_604     (POWERPC_FLAG_NONE)
 
 static void init_proc_604 (CPUPPCState *env)
 {
@@ -3399,6 +3422,7 @@ static void init_proc_604 (CPUPPCState *env)
 //#define POWERPC_EXCP_7x0     (POWERPC_EXCP_7x0)
 #define POWERPC_INPUT_7x0    (PPC_FLAGS_INPUT_6xx)
 #define POWERPC_BFDM_7x0     (bfd_mach_ppc_750)
+#define POWERPC_FLAG_7x0     (POWERPC_FLAG_NONE)
 
 static void init_proc_7x0 (CPUPPCState *env)
 {
@@ -3435,6 +3459,7 @@ static void init_proc_7x0 (CPUPPCState *env)
 #define POWERPC_EXCP_750fx   (POWERPC_EXCP_7x0)
 #define POWERPC_INPUT_750fx  (PPC_FLAGS_INPUT_6xx)
 #define POWERPC_BFDM_750fx   (bfd_mach_ppc_750)
+#define POWERPC_FLAG_750fx   (POWERPC_FLAG_NONE)
 
 static void init_proc_750fx (CPUPPCState *env)
 {
@@ -3478,6 +3503,7 @@ static void init_proc_750fx (CPUPPCState *env)
 //#define POWERPC_EXCP_7x5     (POWERPC_EXCP_7x5)
 #define POWERPC_INPUT_7x5    (PPC_FLAGS_INPUT_6xx)
 #define POWERPC_BFDM_7x5     (bfd_mach_ppc_750)
+#define POWERPC_FLAG_7x5     (POWERPC_FLAG_NONE)
 
 static void init_proc_7x5 (CPUPPCState *env)
 {
@@ -3536,6 +3562,7 @@ static void init_proc_7x5 (CPUPPCState *env)
 #define POWERPC_EXCP_7400    (POWERPC_EXCP_74xx)
 #define POWERPC_INPUT_7400   (PPC_FLAGS_INPUT_6xx)
 #define POWERPC_BFDM_7400    (bfd_mach_ppc_7400)
+#define POWERPC_FLAG_7400    (POWERPC_FLAG_VRE)
 
 static void init_proc_7400 (CPUPPCState *env)
 {
@@ -3565,6 +3592,7 @@ static void init_proc_7400 (CPUPPCState *env)
 #define POWERPC_EXCP_7410    (POWERPC_EXCP_74xx)
 #define POWERPC_INPUT_7410   (PPC_FLAGS_INPUT_6xx)
 #define POWERPC_BFDM_7410    (bfd_mach_ppc_7400)
+#define POWERPC_FLAG_7410    (POWERPC_FLAG_VRE)
 
 static void init_proc_7410 (CPUPPCState *env)
 {
@@ -3606,6 +3634,7 @@ static void init_proc_7410 (CPUPPCState *env)
 #define POWERPC_EXCP_7440    (POWERPC_EXCP_74xx)
 #define POWERPC_INPUT_7440   (PPC_FLAGS_INPUT_6xx)
 #define POWERPC_BFDM_7440    (bfd_mach_ppc_7400)
+#define POWERPC_FLAG_7440    (POWERPC_FLAG_VRE)
 
 __attribute__ (( unused ))
 static void init_proc_7440 (CPUPPCState *env)
@@ -3674,6 +3703,7 @@ static void init_proc_7440 (CPUPPCState *env)
 #define POWERPC_EXCP_7450    (POWERPC_EXCP_74xx)
 #define POWERPC_INPUT_7450   (PPC_FLAGS_INPUT_6xx)
 #define POWERPC_BFDM_7450    (bfd_mach_ppc_7400)
+#define POWERPC_FLAG_7450    (POWERPC_FLAG_VRE)
 
 __attribute__ (( unused ))
 static void init_proc_7450 (CPUPPCState *env)
@@ -3744,6 +3774,7 @@ static void init_proc_7450 (CPUPPCState *env)
 #define POWERPC_EXCP_7445    (POWERPC_EXCP_74xx)
 #define POWERPC_INPUT_7445   (PPC_FLAGS_INPUT_6xx)
 #define POWERPC_BFDM_7445    (bfd_mach_ppc_7400)
+#define POWERPC_FLAG_7445    (POWERPC_FLAG_VRE)
 
 __attribute__ (( unused ))
 static void init_proc_7445 (CPUPPCState *env)
@@ -3846,6 +3877,7 @@ static void init_proc_7445 (CPUPPCState *env)
 #define POWERPC_EXCP_7455    (POWERPC_EXCP_74xx)
 #define POWERPC_INPUT_7455   (PPC_FLAGS_INPUT_6xx)
 #define POWERPC_BFDM_7455    (bfd_mach_ppc_7400)
+#define POWERPC_FLAG_7455    (POWERPC_FLAG_VRE)
 
 __attribute__ (( unused ))
 static void init_proc_7455 (CPUPPCState *env)
@@ -3955,6 +3987,7 @@ static void init_proc_7455 (CPUPPCState *env)
 //#define POWERPC_EXCP_970     (POWERPC_EXCP_970)
 #define POWERPC_INPUT_970    (PPC_FLAGS_INPUT_970)
 #define POWERPC_BFDM_970     (bfd_mach_ppc64)
+#define POWERPC_FLAG_970     (POWERPC_FLAG_VRE)
 
 static void init_proc_970 (CPUPPCState *env)
 {
@@ -4025,6 +4058,7 @@ static void init_proc_970 (CPUPPCState *env)
 #define POWERPC_EXCP_970FX   (POWERPC_EXCP_970)
 #define POWERPC_INPUT_970FX  (PPC_FLAGS_INPUT_970)
 #define POWERPC_BFDM_970FX   (bfd_mach_ppc64)
+#define POWERPC_FLAG_970FX   (POWERPC_FLAG_VRE)
 
 static void init_proc_970FX (CPUPPCState *env)
 {
@@ -4095,6 +4129,7 @@ static void init_proc_970FX (CPUPPCState *env)
 #define POWERPC_EXCP_970GX   (POWERPC_EXCP_970)
 #define POWERPC_INPUT_970GX  (PPC_FLAGS_INPUT_970)
 #define POWERPC_BFDM_970GX   (bfd_mach_ppc64)
+#define POWERPC_FLAG_970GX   (POWERPC_FLAG_VRE)
 
 static void init_proc_970GX (CPUPPCState *env)
 {
@@ -4164,6 +4199,7 @@ static void init_proc_970GX (CPUPPCState *env)
 #define POWERPC_EXCP_620     (POWERPC_EXCP_970)
 #define POWERPC_INPUT_620    (PPC_FLAGS_INPUT_970)
 #define POWERPC_BFDM_620     (bfd_mach_ppc64)
+#define POWERPC_FLAG_620     (POWERPC_FLAG_NONE)
 
 __attribute__ (( unused ))
 static void init_proc_620 (CPUPPCState *env)
@@ -4197,6 +4233,7 @@ static void init_proc_620 (CPUPPCState *env)
 #define POWERPC_INPUT_PPC32   POWERPC_INPUT_604
 #define init_proc_PPC32       init_proc_604
 #define POWERPC_BFDM_PPC32    POWERPC_BFDM_604
+#define POWERPC_FLAG_PPC32    POWERPC_FLAG_604
 
 /* Default 64 bits PowerPC target will be 970 FX */
 #define CPU_POWERPC_PPC64     CPU_POWERPC_970FX
@@ -4207,6 +4244,7 @@ static void init_proc_620 (CPUPPCState *env)
 #define POWERPC_INPUT_PPC64   POWERPC_INPUT_970FX
 #define init_proc_PPC64       init_proc_970FX
 #define POWERPC_BFDM_PPC64    POWERPC_BFDM_970FX
+#define POWERPC_FLAG_PPC64    POWERPC_FLAG_970FX
 
 /* Default PowerPC target will be PowerPC 32 */
 #if defined (TARGET_PPC64) && 0 // XXX: TODO
@@ -4218,6 +4256,7 @@ static void init_proc_620 (CPUPPCState *env)
 #define POWERPC_INPUT_DEFAULT POWERPC_INPUT_PPC64
 #define init_proc_DEFAULT     init_proc_PPC64
 #define POWERPC_BFDM_DEFAULT  POWERPC_BFDM_PPC64
+#define POWERPC_FLAG_DEFAULT  POWERPC_FLAG_PPC64
 #else
 #define CPU_POWERPC_DEFAULT   CPU_POWERPC_PPC32
 #define POWERPC_INSNS_DEFAULT POWERPC_INSNS_PPC32
@@ -4227,6 +4266,7 @@ static void init_proc_620 (CPUPPCState *env)
 #define POWERPC_INPUT_DEFAULT POWERPC_INPUT_PPC32
 #define init_proc_DEFAULT     init_proc_PPC32
 #define POWERPC_BFDM_DEFAULT  POWERPC_BFDM_PPC32
+#define POWERPC_FLAG_DEFAULT  POWERPC_FLAG_PPC32
 #endif
 
 /*****************************************************************************/
@@ -4724,6 +4764,7 @@ enum {
         .excp_model  = glue(POWERPC_EXCP_,_type),                             \
         .bus_model   = glue(POWERPC_INPUT_,_type),                            \
         .bfd_mach    = glue(POWERPC_BFDM_,_type),                             \
+        .flags       = glue(POWERPC_FLAG_,_type),                             \
         .init_proc   = &glue(init_proc_,_type),                               \
     }
 
@@ -6016,6 +6057,7 @@ int cpu_ppc_register (CPUPPCState *env, ppc_def_t *def)
     env->mmu_model = def->mmu_model;
     env->excp_model = def->excp_model;
     env->bus_model = def->bus_model;
+    env->flags = def->flags;
     env->bfd_mach = def->bfd_mach;
     if (create_ppc_opcodes(env, def) < 0)
         return -1;