diff options
Diffstat (limited to 'target-ppc/translate_init.c')
| -rw-r--r-- | target-ppc/translate_init.c | 49 |
1 files changed, 49 insertions, 0 deletions
diff --git a/target-ppc/translate_init.c b/target-ppc/translate_init.c index 09fb29ec97..2780f92188 100644 --- a/target-ppc/translate_init.c +++ b/target-ppc/translate_init.c @@ -1017,6 +1017,54 @@ static void gen_spr_7xx (CPUPPCState *env) 0x00000000); } +#ifdef TARGET_PPC64 +#ifndef CONFIG_USER_ONLY +static void spr_read_uamr (void *opaque, int gprn, int sprn) +{ + gen_load_spr(cpu_gpr[gprn], SPR_AMR); + spr_load_dump_spr(SPR_AMR); +} + +static void spr_write_uamr (void *opaque, int sprn, int gprn) +{ + gen_store_spr(SPR_AMR, cpu_gpr[gprn]); + spr_store_dump_spr(SPR_AMR); +} + +static void spr_write_uamr_pr (void *opaque, int sprn, int gprn) +{ + TCGv t0 = tcg_temp_new(); + + gen_load_spr(t0, SPR_UAMOR); + tcg_gen_and_tl(t0, t0, cpu_gpr[gprn]); + gen_store_spr(SPR_AMR, t0); + spr_store_dump_spr(SPR_AMR); +} +#endif /* CONFIG_USER_ONLY */ + +static void gen_spr_amr (CPUPPCState *env) +{ +#ifndef CONFIG_USER_ONLY + /* Virtual Page Class Key protection */ + /* The AMR is accessible either via SPR 13 or SPR 29. 13 is + * userspace accessible, 29 is privileged. So we only need to set + * the kvm ONE_REG id on one of them, we use 29 */ + spr_register(env, SPR_UAMR, "UAMR", + &spr_read_uamr, &spr_write_uamr_pr, + &spr_read_uamr, &spr_write_uamr, + 0); + spr_register_kvm(env, SPR_AMR, "AMR", + SPR_NOACCESS, SPR_NOACCESS, + &spr_read_generic, &spr_write_generic, + KVM_REG_PPC_AMR, 0xffffffffffffffffULL); + spr_register_kvm(env, SPR_UAMOR, "UAMOR", + SPR_NOACCESS, SPR_NOACCESS, + &spr_read_generic, &spr_write_generic, + KVM_REG_PPC_UAMOR, 0); +#endif /* !CONFIG_USER_ONLY */ +} +#endif /* TARGET_PPC64 */ + static void gen_spr_thrm (CPUPPCState *env) { /* Thermal management */ @@ -6872,6 +6920,7 @@ static void init_proc_POWER7 (CPUPPCState *env) SPR_NOACCESS, SPR_NOACCESS, &spr_read_generic, SPR_NOACCESS, 0x00000000); /* TOFIX */ + gen_spr_amr(env); /* XXX : not implemented */ spr_register(env, SPR_CTRL, "SPR_CTRLT", SPR_NOACCESS, SPR_NOACCESS, |