diff options
Diffstat (limited to 'target/ppc/excp_helper.c')
| -rw-r--r-- | target/ppc/excp_helper.c | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/target/ppc/excp_helper.c b/target/ppc/excp_helper.c index 4e548a4487..c092fbead0 100644 --- a/target/ppc/excp_helper.c +++ b/target/ppc/excp_helper.c @@ -417,6 +417,7 @@ static inline void powerpc_excp(PowerPCCPU *cpu, int excp_model, int excp) case POWERPC_EXCP_HISI: /* Hypervisor instruction storage exception */ case POWERPC_EXCP_HDSEG: /* Hypervisor data segment exception */ case POWERPC_EXCP_HISEG: /* Hypervisor instruction segment exception */ + case POWERPC_EXCP_SDOOR_HV: /* Hypervisor Doorbell interrupt */ case POWERPC_EXCP_HV_EMU: srr0 = SPR_HSRR0; srr1 = SPR_HSRR1; @@ -846,6 +847,11 @@ static void ppc_hw_interrupt(CPUPPCState *env) powerpc_excp(cpu, env->excp_model, POWERPC_EXCP_DOORI); return; } + if (env->pending_interrupts & (1 << PPC_INTERRUPT_HDOORBELL)) { + env->pending_interrupts &= ~(1 << PPC_INTERRUPT_HDOORBELL); + powerpc_excp(cpu, env->excp_model, POWERPC_EXCP_SDOOR_HV); + return; + } if (env->pending_interrupts & (1 << PPC_INTERRUPT_PERFM)) { env->pending_interrupts &= ~(1 << PPC_INTERRUPT_PERFM); powerpc_excp(cpu, env->excp_model, POWERPC_EXCP_PERFM); @@ -1145,4 +1151,50 @@ void helper_msgsnd(target_ulong rb) } qemu_mutex_unlock_iothread(); } + +/* Server Processor Control */ +static int book3s_dbell2irq(target_ulong rb) +{ + int msg = rb & DBELL_TYPE_MASK; + + /* A Directed Hypervisor Doorbell message is sent only if the + * message type is 5. All other types are reserved and the + * instruction is a no-op */ + return msg == DBELL_TYPE_DBELL_SERVER ? PPC_INTERRUPT_HDOORBELL : -1; +} + +void helper_book3s_msgclr(CPUPPCState *env, target_ulong rb) +{ + int irq = book3s_dbell2irq(rb); + + if (irq < 0) { + return; + } + + env->pending_interrupts &= ~(1 << irq); +} + +void helper_book3s_msgsnd(target_ulong rb) +{ + int irq = book3s_dbell2irq(rb); + int pir = rb & DBELL_PROCIDTAG_MASK; + CPUState *cs; + + if (irq < 0) { + return; + } + + qemu_mutex_lock_iothread(); + CPU_FOREACH(cs) { + PowerPCCPU *cpu = POWERPC_CPU(cs); + CPUPPCState *cenv = &cpu->env; + + /* TODO: broadcast message to all threads of the same processor */ + if (cenv->spr_cb[SPR_PIR].default_value == pir) { + cenv->pending_interrupts |= 1 << irq; + cpu_interrupt(cs, CPU_INTERRUPT_HARD); + } + } + qemu_mutex_unlock_iothread(); +} #endif |