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target/ppc: introduce ppc_maybe_interrupt

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This new method will check if any pending interrupt was unmasked and
then call cpu_interrupt/cpu_reset_interrupt accordingly. Code that
raises/lowers or masks/unmasks interrupts should call this method to
keep CPU_INTERRUPT_HARD coherent with env->pending_interrupts.

Signed-off-by: Matheus Ferst <matheus.ferst@eldorado.org.br>
Reviewed-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Message-Id: <20221021142156.4134411-2-matheus.ferst@eldorado.org.br>
Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
This commit is contained in:
Matheus Ferst 2022-10-21 11:21:54 -03:00 • committed by Daniel Henrique Barboza
parent 6a8e8188c3
commit 2fdedcbc69
10 changed files with 67 additions and 8 deletions
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6
hw/ppc/spapr_hcall.c
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@ -490,6 +490,7 @@ static target_ulong h_cede(PowerPCCPU *cpu, SpaprMachineState *spapr,
env->msr |= (1ULL << MSR_EE);
hreg_compute_hflags(env);
ppc_maybe_interrupt(env);
if (spapr_cpu->prod) {
spapr_cpu->prod = false;
@ -500,6 +501,7 @@ static target_ulong h_cede(PowerPCCPU *cpu, SpaprMachineState *spapr,
cs->halted = 1;
cs->exception_index = EXCP_HLT;
cs->exit_request = 1;
ppc_maybe_interrupt(env);
}
return H_SUCCESS;
@ -521,6 +523,7 @@ static target_ulong h_confer_self(PowerPCCPU *cpu)
cs->halted = 1;
cs->exception_index = EXCP_HALTED;
cs->exit_request = 1;
ppc_maybe_interrupt(&cpu->env);
return H_SUCCESS;
}
@ -633,6 +636,7 @@ static target_ulong h_prod(PowerPCCPU *cpu, SpaprMachineState *spapr,
spapr_cpu = spapr_cpu_state(tcpu);
spapr_cpu->prod = true;
cs->halted = 0;
ppc_maybe_interrupt(&cpu->env);
qemu_cpu_kick(cs);
return H_SUCCESS;
@ -1669,6 +1673,7 @@ static target_ulong h_enter_nested(PowerPCCPU *cpu,
spapr_cpu->in_nested = true;
hreg_compute_hflags(env);
ppc_maybe_interrupt(env);
tlb_flush(cs);
env->reserve_addr = -1; /* Reset the reservation */
@ -1810,6 +1815,7 @@ out_restore_l1:
spapr_cpu->in_nested = false;
hreg_compute_hflags(env);
ppc_maybe_interrupt(env);
tlb_flush(cs);
env->reserve_addr = -1; /* Reset the reservation */