diff options
Diffstat (limited to 'target-ppc/misc_helper.c')
| -rw-r--r-- | target-ppc/misc_helper.c | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/target-ppc/misc_helper.c b/target-ppc/misc_helper.c index 7331b1b240..a577b3afd1 100644 --- a/target-ppc/misc_helper.c +++ b/target-ppc/misc_helper.c @@ -34,6 +34,45 @@ 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 +} + +void helper_msr_facility_check(CPUPPCState *env, uint32_t bit, + uint32_t sprn, uint32_t cause) +{ +#ifdef TARGET_PPC64 + if (env->msr & (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) |