diff options
Diffstat (limited to 'target/ppc/misc_helper.c')
| -rw-r--r-- | target/ppc/misc_helper.c | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/target/ppc/misc_helper.c b/target/ppc/misc_helper.c index 1f1af21f33..692d058665 100644 --- a/target/ppc/misc_helper.c +++ b/target/ppc/misc_helper.c @@ -43,6 +43,27 @@ void helper_store_dump_spr(CPUPPCState *env, uint32_t sprn) env->spr[sprn]); } +void helper_spr_core_write_generic(CPUPPCState *env, uint32_t sprn, + target_ulong val) +{ + CPUState *cs = env_cpu(env); + CPUState *ccs; + uint32_t nr_threads = cs->nr_threads; + uint32_t core_id = env->spr[SPR_PIR] & ~(nr_threads - 1); + + assert(core_id == env->spr[SPR_PIR] - env->spr[SPR_TIR]); + + if (nr_threads == 1) { + env->spr[sprn] = val; + return; + } + + THREAD_SIBLING_FOREACH(cs, ccs) { + CPUPPCState *cenv = &POWERPC_CPU(ccs)->env; + cenv->spr[sprn] = val; + } +} + void helper_spr_write_CTRL(CPUPPCState *env, uint32_t sprn, target_ulong val) { @@ -191,6 +212,10 @@ target_ulong helper_load_dpdes(CPUPPCState *env) helper_hfscr_facility_check(env, HFSCR_MSGP, "load DPDES", HFSCR_IC_MSGP); + if (!(env->flags & POWERPC_FLAG_SMT_1LPAR)) { + nr_threads = 1; /* DPDES behaves as 1-thread in LPAR-per-thread mode */ + } + if (nr_threads == 1) { if (env->pending_interrupts & PPC_INTERRUPT_DOORBELL) { dpdes = 1; @@ -222,6 +247,10 @@ void helper_store_dpdes(CPUPPCState *env, target_ulong val) helper_hfscr_facility_check(env, HFSCR_MSGP, "store DPDES", HFSCR_IC_MSGP); + if (!(env->flags & POWERPC_FLAG_SMT_1LPAR)) { + nr_threads = 1; /* DPDES behaves as 1-thread in LPAR-per-thread mode */ + } + if (val & ~(nr_threads - 1)) { qemu_log_mask(LOG_GUEST_ERROR, "Invalid DPDES register value " TARGET_FMT_lx"\n", val); |