target-ppc: add instruction flags for Book I 2.05

.. and enable it on POWER7 CPU.
Reviewed-by: NRichard Henderson <rth@twiddle.net>
Signed-off-by: NAurelien Jarno <aurelien@aurel32.net>
Signed-off-by: NAlexander Graf <agraf@suse.de>

target-ppc/cpu.h

@@ -1870,8 +1870,10 @@ enum {
     PPC2_PRCNTL        = 0x0000000000000008ULL,
     /* Byte-reversed, indexed, double-word load and store                    */
     PPC2_DBRX          = 0x0000000000000010ULL,
+    /* Book I 2.05 PowerPC specification                                     */
+    PPC2_ISA205        = 0x0000000000000020ULL,
 
-#define PPC_TCG_INSNS2 (PPC2_BOOKE206 | PPC2_PRCNTL | PPC2_DBRX)
+#define PPC_TCG_INSNS2 (PPC2_BOOKE206 | PPC2_PRCNTL | PPC2_DBRX | PPC2_ISA205)
 };
 
 /*****************************************************************************/

target-ppc/translate_init.c

@@ -7042,7 +7042,7 @@ POWERPC_FAMILY(POWER7)(ObjectClass *oc, void *data)
                        PPC_64B | PPC_ALTIVEC |
                        PPC_SEGMENT_64B | PPC_SLBI |
                        PPC_POPCNTB | PPC_POPCNTWD;
-    pcc->insns_flags2 = PPC2_VSX | PPC2_DFP | PPC2_DBRX;
+    pcc->insns_flags2 = PPC2_VSX | PPC2_DFP | PPC2_DBRX | PPC2_ISA205;
     pcc->msr_mask = 0x800000000204FF36ULL;
     pcc->mmu_model = POWERPC_MMU_2_06;
 #if defined(CONFIG_SOFTMMU)