diff options
Diffstat (limited to 'hw/ppc/spapr_rtas.c')
| -rw-r--r-- | hw/ppc/spapr_rtas.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/hw/ppc/spapr_rtas.c b/hw/ppc/spapr_rtas.c index 526b489297..bee3835214 100644 --- a/hw/ppc/spapr_rtas.c +++ b/hw/ppc/spapr_rtas.c @@ -266,6 +266,7 @@ static void rtas_ibm_get_system_parameter(PowerPCCPU *cpu, target_ulong args, uint32_t nret, target_ulong rets) { + PowerPCCPUClass *pcc = POWERPC_CPU_GET_CLASS(cpu); MachineState *ms = MACHINE(qdev_get_machine()); unsigned int max_cpus = ms->smp.max_cpus; target_ulong parameter = rtas_ld(args, 0); @@ -283,6 +284,20 @@ static void rtas_ibm_get_system_parameter(PowerPCCPU *cpu, current_machine->ram_size / MiB, ms->smp.cpus, max_cpus); + if (pcc->n_host_threads > 0) { + char *hostthr_val, *old = param_val; + + /* + * Add HostThrs property. This property is not present in PAPR but + * is expected by some guests to communicate the number of physical + * host threads per core on the system so that they can scale + * information which varies based on the thread configuration. + */ + hostthr_val = g_strdup_printf(",HostThrs=%d", pcc->n_host_threads); + param_val = g_strconcat(param_val, hostthr_val, NULL); + g_free(hostthr_val); + g_free(old); + } ret = sysparm_st(buffer, length, param_val, strlen(param_val) + 1); g_free(param_val); break; |