diff options
| -rw-r--r-- | target-ppc/cpu.h | 16 | ||||
| -rw-r--r-- | target-ppc/excp_helper.c | 5 | ||||
| -rw-r--r-- | target-ppc/helper.h | 1 | ||||
| -rw-r--r-- | target-ppc/misc_helper.c | 27 | ||||
| -rw-r--r-- | target-ppc/translate.c | 7 | ||||
| -rw-r--r-- | target-ppc/translate_init.c | 10 |
6 files changed, 66 insertions, 0 deletions
diff --git a/target-ppc/cpu.h b/target-ppc/cpu.h index 9f9ffb1..6514edd 100644 --- a/target-ppc/cpu.h +++ b/target-ppc/cpu.h @@ -238,6 +238,7 @@ enum { POWERPC_EXCP_DTLBE = 93, /* Data TLB error */ /* VSX Unavailable (Power ISA 2.06 and later) */ POWERPC_EXCP_VSXU = 94, /* VSX Unavailable */ + POWERPC_EXCP_FU = 95, /* Facility Unavailable */ /* EOL */ POWERPC_EXCP_NB = 96, /* QEMU exceptions: used internally during code translation */ @@ -516,6 +517,19 @@ struct ppc_slb_t { #endif #endif +/* Facility Status and Control (FSCR) bits */ +#define FSCR_EBB (63 - 56) /* Event-Based Branch Facility */ +#define FSCR_TAR (63 - 55) /* Target Address Register */ +/* Interrupt cause mask and position in FSCR. HFSCR has the same format */ +#define FSCR_IC_MASK (0xFFULL) +#define FSCR_IC_POS (63 - 7) +#define FSCR_IC_DSCR_SPR3 2 +#define FSCR_IC_PMU 3 +#define FSCR_IC_BHRB 4 +#define FSCR_IC_TM 5 +#define FSCR_IC_EBB 7 +#define FSCR_IC_TAR 8 + /* Exception state register bits definition */ #define ESR_PIL (1 << (63 - 36)) /* Illegal Instruction */ #define ESR_PPR (1 << (63 - 37)) /* Privileged Instruction */ @@ -1102,6 +1116,7 @@ do { \ /*****************************************************************************/ PowerPCCPU *cpu_ppc_init(const char *cpu_model); void ppc_translate_init(void); +void gen_update_current_nip(void *opaque); int cpu_ppc_exec (CPUPPCState *s); /* you can call this signal handler from your SIGBUS and SIGSEGV signal handlers to inform the virtual CPU of exceptions. non zero @@ -1268,6 +1283,7 @@ static inline int cpu_mmu_index (CPUPPCState *env) #define SPR_CTRL (0x098) #define SPR_MPC_CMPE (0x098) #define SPR_MPC_CMPF (0x099) +#define SPR_FSCR (0x099) #define SPR_MPC_CMPG (0x09A) #define SPR_MPC_CMPH (0x09B) #define SPR_MPC_LCTRL1 (0x09C) diff --git a/target-ppc/excp_helper.c b/target-ppc/excp_helper.c index 7dfc52d..9639d21 100644 --- a/target-ppc/excp_helper.c +++ b/target-ppc/excp_helper.c @@ -399,6 +399,11 @@ static inline void powerpc_excp(PowerPCCPU *cpu, int excp_model, int excp) new_msr |= (target_ulong)MSR_HVB; } goto store_current; + case POWERPC_EXCP_FU: /* Facility unavailable exception */ + if (lpes1 == 0) { + new_msr |= (target_ulong)MSR_HVB; + } + goto store_current; case POWERPC_EXCP_PIT: /* Programmable interval timer interrupt */ LOG_EXCP("PIT exception\n"); goto store_next; diff --git a/target-ppc/helper.h b/target-ppc/helper.h index 5ee4706..c1417ea 100644 --- a/target-ppc/helper.h +++ b/target-ppc/helper.h @@ -577,6 +577,7 @@ DEF_HELPER_3(store_dcr, void, env, tl, tl) DEF_HELPER_2(load_dump_spr, void, env, i32) DEF_HELPER_2(store_dump_spr, void, env, i32) +DEF_HELPER_4(fscr_facility_check, void, env, i32, i32, i32) DEF_HELPER_1(load_tbl, tl, env) DEF_HELPER_1(load_tbu, tl, env) DEF_HELPER_1(load_atbl, tl, env) diff --git a/target-ppc/misc_helper.c b/target-ppc/misc_helper.c index 7331b1b..554831f 100644 --- a/target-ppc/misc_helper.c +++ b/target-ppc/misc_helper.c @@ -34,6 +34,33 @@ void helper_store_dump_spr(CPUPPCState *env, uint32_t sprn) qemu_log("Write SPR %d %03x <= " TARGET_FMT_lx "\n", sprn, sprn, env->spr[sprn]); } + +#ifdef TARGET_PPC64 +static void raise_fu_exception(CPUPPCState *env, uint32_t bit, + uint32_t sprn, uint32_t cause) +{ + qemu_log("Facility SPR %d is unavailable (SPR FSCR:%d)\n", sprn, bit); + + env->spr[SPR_FSCR] &= ~((target_ulong)FSCR_IC_MASK << FSCR_IC_POS); + cause &= FSCR_IC_MASK; + env->spr[SPR_FSCR] |= (target_ulong)cause << FSCR_IC_POS; + + helper_raise_exception_err(env, POWERPC_EXCP_FU, 0); +} +#endif + +void helper_fscr_facility_check(CPUPPCState *env, uint32_t bit, + uint32_t sprn, uint32_t cause) +{ +#ifdef TARGET_PPC64 + if (env->spr[SPR_FSCR] & (1ULL << bit)) { + /* Facility is enabled, continue */ + return; + } + raise_fu_exception(env, bit, sprn, cause); +#endif +} + #if !defined(CONFIG_USER_ONLY) void helper_store_sdr1(CPUPPCState *env, target_ulong val) diff --git a/target-ppc/translate.c b/target-ppc/translate.c index 6affe7e..4801721 100644 --- a/target-ppc/translate.c +++ b/target-ppc/translate.c @@ -284,6 +284,13 @@ static inline void gen_update_nip(DisasContext *ctx, target_ulong nip) tcg_gen_movi_tl(cpu_nip, nip); } +void gen_update_current_nip(void *opaque) +{ + DisasContext *ctx = opaque; + + tcg_gen_movi_tl(cpu_nip, ctx->nip); +} + static inline void gen_exception_err(DisasContext *ctx, uint32_t excp, uint32_t error) { TCGv_i32 t0, t1; diff --git a/target-ppc/translate_init.c b/target-ppc/translate_init.c index 1df69e0..4e139b4 100644 --- a/target-ppc/translate_init.c +++ b/target-ppc/translate_init.c @@ -3080,6 +3080,7 @@ static void init_excp_POWER7 (CPUPPCState *env) env->excp_vectors[POWERPC_EXCP_PERFM] = 0x00000F00; env->excp_vectors[POWERPC_EXCP_VPU] = 0x00000F20; env->excp_vectors[POWERPC_EXCP_VSXU] = 0x00000F40; + env->excp_vectors[POWERPC_EXCP_FU] = 0x00000F60; env->excp_vectors[POWERPC_EXCP_IABR] = 0x00001300; env->excp_vectors[POWERPC_EXCP_MAINT] = 0x00001600; env->excp_vectors[POWERPC_EXCP_VPUA] = 0x00001700; @@ -7586,6 +7587,14 @@ static void gen_spr_power8_tce_address_control(CPUPPCState *env) 0x00000000); } +static void gen_spr_power8_fscr(CPUPPCState *env) +{ + spr_register_kvm(env, SPR_FSCR, "FSCR", + SPR_NOACCESS, SPR_NOACCESS, + &spr_read_generic, &spr_write_generic, + KVM_REG_PPC_FSCR, 0x00000000); +} + static void init_proc_book3s_64(CPUPPCState *env, int version) { gen_spr_ne_601(env); @@ -7631,6 +7640,7 @@ static void init_proc_book3s_64(CPUPPCState *env, int version) if (version >= BOOK3S_CPU_POWER8) { gen_spr_power8_tce_address_control(env); gen_spr_power8_ids(env); + gen_spr_power8_fscr(env); } #if !defined(CONFIG_USER_ONLY) switch (version) { |
