[Qemu-ppc] [PATCH 1/8] PPC: Add IVOR 38-42

[Alexander Graf]

Our code only knows IVORs up to 37. Add the new ones defined in ISA 2.06
from 38 - 42.

Signed-off-by: Alexander Graf <address@hidden>
Reviewed-by: Andreas Färber <address@hidden>
---
 target-ppc/cpu.h            |    5 +++++
 target-ppc/translate_init.c |   29 +++++++++++++++--------------
 2 files changed, 20 insertions(+), 14 deletions(-)

diff --git a/target-ppc/cpu.h b/target-ppc/cpu.h
index 2d67d1f..6f4cdde 100644
--- a/target-ppc/cpu.h
+++ b/target-ppc/cpu.h
@@ -1371,6 +1371,11 @@ static inline void cpu_clone_regs(CPUState *env, 
target_ulong newsp)
 #define SPR_BOOKE_IVOR13      (0x19D)
 #define SPR_BOOKE_IVOR14      (0x19E)
 #define SPR_BOOKE_IVOR15      (0x19F)
+#define SPR_BOOKE_IVOR38      (0x1B0)
+#define SPR_BOOKE_IVOR39      (0x1B1)
+#define SPR_BOOKE_IVOR40      (0x1B2)
+#define SPR_BOOKE_IVOR41      (0x1B3)
+#define SPR_BOOKE_IVOR42      (0x1B4)
 #define SPR_BOOKE_SPEFSCR     (0x200)
 #define SPR_Exxx_BBEAR        (0x201)
 #define SPR_Exxx_BBTAR        (0x202)
diff --git a/target-ppc/translate_init.c b/target-ppc/translate_init.c
index 4d692d0..83348b5 100644
--- a/target-ppc/translate_init.c
+++ b/target-ppc/translate_init.c
@@ -526,26 +526,27 @@ static void spr_write_excp_prefix (void *opaque, int 
sprn, int gprn)
 static void spr_write_excp_vector (void *opaque, int sprn, int gprn)
 {
     DisasContext *ctx = opaque;
+    int sprn_offs;
 
     if (sprn >= SPR_BOOKE_IVOR0 && sprn <= SPR_BOOKE_IVOR15) {
-        TCGv t0 = tcg_temp_new();
-        tcg_gen_ld_tl(t0, cpu_env, offsetof(CPUState, ivor_mask));
-        tcg_gen_and_tl(t0, t0, cpu_gpr[gprn]);
-        tcg_gen_st_tl(t0, cpu_env, offsetof(CPUState, excp_vectors[sprn - 
SPR_BOOKE_IVOR0]));
-        gen_store_spr(sprn, t0);
-        tcg_temp_free(t0);
+        sprn_offs = sprn - SPR_BOOKE_IVOR0;
     } else if (sprn >= SPR_BOOKE_IVOR32 && sprn <= SPR_BOOKE_IVOR37) {
-        TCGv t0 = tcg_temp_new();
-        tcg_gen_ld_tl(t0, cpu_env, offsetof(CPUState, ivor_mask));
-        tcg_gen_and_tl(t0, t0, cpu_gpr[gprn]);
-        tcg_gen_st_tl(t0, cpu_env, offsetof(CPUState, excp_vectors[sprn - 
SPR_BOOKE_IVOR32 + 32]));
-        gen_store_spr(sprn, t0);
-        tcg_temp_free(t0);
+        sprn_offs = sprn - SPR_BOOKE_IVOR32 + 32;
+    } else if (sprn >= SPR_BOOKE_IVOR38 && sprn <= SPR_BOOKE_IVOR42) {
+        sprn_offs = sprn - SPR_BOOKE_IVOR38 + 38;
     } else {
         printf("Trying to write an unknown exception vector %d %03x\n",
                sprn, sprn);
         gen_inval_exception(ctx, POWERPC_EXCP_PRIV_REG);
+        return;
     }
+
+    TCGv t0 = tcg_temp_new();
+    tcg_gen_ld_tl(t0, cpu_env, offsetof(CPUState, ivor_mask));
+    tcg_gen_and_tl(t0, t0, cpu_gpr[gprn]);
+    tcg_gen_st_tl(t0, cpu_env, offsetof(CPUState, excp_vectors[sprn_offs]));
+    gen_store_spr(sprn, t0);
+    tcg_temp_free(t0);
 }
 #endif
 
@@ -1434,8 +1435,8 @@ static void gen_spr_BookE (CPUPPCState *env, uint64_t 
ivor_mask)
         SPR_BOOKE_IVORxx, SPR_BOOKE_IVORxx, SPR_BOOKE_IVORxx, SPR_BOOKE_IVORxx,
         SPR_BOOKE_IVORxx, SPR_BOOKE_IVORxx, SPR_BOOKE_IVORxx, SPR_BOOKE_IVORxx,
         SPR_BOOKE_IVOR32, SPR_BOOKE_IVOR33, SPR_BOOKE_IVOR34, SPR_BOOKE_IVOR35,
-        SPR_BOOKE_IVOR36, SPR_BOOKE_IVOR37, SPR_BOOKE_IVORxx, SPR_BOOKE_IVORxx,
-        SPR_BOOKE_IVORxx, SPR_BOOKE_IVORxx, SPR_BOOKE_IVORxx, SPR_BOOKE_IVORxx,
+        SPR_BOOKE_IVOR36, SPR_BOOKE_IVOR37, SPR_BOOKE_IVOR38, SPR_BOOKE_IVOR39,
+        SPR_BOOKE_IVOR40, SPR_BOOKE_IVOR41, SPR_BOOKE_IVOR42, SPR_BOOKE_IVORxx,
         SPR_BOOKE_IVORxx, SPR_BOOKE_IVORxx, SPR_BOOKE_IVORxx, SPR_BOOKE_IVORxx,
         SPR_BOOKE_IVORxx, SPR_BOOKE_IVORxx, SPR_BOOKE_IVORxx, SPR_BOOKE_IVORxx,
         SPR_BOOKE_IVORxx, SPR_BOOKE_IVORxx, SPR_BOOKE_IVORxx, SPR_BOOKE_IVORxx,
-- 
1.6.0.2