| Message ID | 20190716024726.17864-3-npiggin@gmail.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | spapr: implement dispatch and suspend calls | expand |
On Tue, Jul 16, 2019 at 12:47:23PM +1000, Nicholas Piggin wrote: > H_PROD is added, and H_CEDE is modified to test the prod bit > according to PAPR. > > Signed-off-by: Nicholas Piggin <npiggin@gmail.com> LGTM apart from the style issues the bot noted. > --- > hw/ppc/spapr_hcall.c | 29 +++++++++++++++++++++++++++++ > 1 file changed, 29 insertions(+) > > diff --git a/hw/ppc/spapr_hcall.c b/hw/ppc/spapr_hcall.c > index e615881ac4..8b208ab259 100644 > --- a/hw/ppc/spapr_hcall.c > +++ b/hw/ppc/spapr_hcall.c > @@ -1050,14 +1050,41 @@ static target_ulong h_cede(PowerPCCPU *cpu, SpaprMachineState *spapr, > { > CPUPPCState *env = &cpu->env; > CPUState *cs = CPU(cpu); > + SpaprCpuState *spapr_cpu = spapr_cpu_state(cpu); > > env->msr |= (1ULL << MSR_EE); > hreg_compute_hflags(env); > + > + if (spapr_cpu->prod) { > + spapr_cpu->prod = false; > + return H_SUCCESS; > + } > + > if (!cpu_has_work(cs)) { > cs->halted = 1; > cs->exception_index = EXCP_HLT; > cs->exit_request = 1; > } > + > + return H_SUCCESS; > +} > + > +static target_ulong h_prod(PowerPCCPU *cpu, SpaprMachineState *spapr, > + target_ulong opcode, target_ulong *args) > +{ > + target_long target = args[0]; > + CPUState *cs; > + SpaprCpuState *spapr_cpu = spapr_cpu_state(cpu); > + > + cs = CPU(spapr_find_cpu(target)); > + if (!cs) { > + return H_PARAMETER; > + } > + > + spapr_cpu->prod = true; > + cs->halted = 0; > + qemu_cpu_kick(cs); > + > return H_SUCCESS; > } > > @@ -1882,6 +1909,8 @@ static void hypercall_register_types(void) > /* hcall-splpar */ > spapr_register_hypercall(H_REGISTER_VPA, h_register_vpa); > spapr_register_hypercall(H_CEDE, h_cede); > + spapr_register_hypercall(H_PROD, h_prod); > + > spapr_register_hypercall(H_SIGNAL_SYS_RESET, h_signal_sys_reset); > > /* processor register resource access h-calls */
diff --git a/hw/ppc/spapr_hcall.c b/hw/ppc/spapr_hcall.c index e615881ac4..8b208ab259 100644 --- a/hw/ppc/spapr_hcall.c +++ b/hw/ppc/spapr_hcall.c @@ -1050,14 +1050,41 @@ static target_ulong h_cede(PowerPCCPU *cpu, SpaprMachineState *spapr, { CPUPPCState *env = &cpu->env; CPUState *cs = CPU(cpu); + SpaprCpuState *spapr_cpu = spapr_cpu_state(cpu); env->msr |= (1ULL << MSR_EE); hreg_compute_hflags(env); + + if (spapr_cpu->prod) { + spapr_cpu->prod = false; + return H_SUCCESS; + } + if (!cpu_has_work(cs)) { cs->halted = 1; cs->exception_index = EXCP_HLT; cs->exit_request = 1; } + + return H_SUCCESS; +} + +static target_ulong h_prod(PowerPCCPU *cpu, SpaprMachineState *spapr, + target_ulong opcode, target_ulong *args) +{ + target_long target = args[0]; + CPUState *cs; + SpaprCpuState *spapr_cpu = spapr_cpu_state(cpu); + + cs = CPU(spapr_find_cpu(target)); + if (!cs) { + return H_PARAMETER; + } + + spapr_cpu->prod = true; + cs->halted = 0; + qemu_cpu_kick(cs); + return H_SUCCESS; } @@ -1882,6 +1909,8 @@ static void hypercall_register_types(void) /* hcall-splpar */ spapr_register_hypercall(H_REGISTER_VPA, h_register_vpa); spapr_register_hypercall(H_CEDE, h_cede); + spapr_register_hypercall(H_PROD, h_prod); + spapr_register_hypercall(H_SIGNAL_SYS_RESET, h_signal_sys_reset); /* processor register resource access h-calls */
H_PROD is added, and H_CEDE is modified to test the prod bit according to PAPR. Signed-off-by: Nicholas Piggin <npiggin@gmail.com> --- hw/ppc/spapr_hcall.c | 29 +++++++++++++++++++++++++++++ 1 file changed, 29 insertions(+)