diff options
| -rw-r--r-- | hw/ppc/spapr_rtas.c | 15 | ||||
| -rw-r--r-- | target/ppc/cpu-qom.h | 1 | ||||
| -rw-r--r-- | target/ppc/translate_init.inc.c | 2 |
3 files changed, 18 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; diff --git a/target/ppc/cpu-qom.h b/target/ppc/cpu-qom.h index 7ffdb0a706..e499575dc8 100644 --- a/target/ppc/cpu-qom.h +++ b/target/ppc/cpu-qom.h @@ -191,6 +191,7 @@ typedef struct PowerPCCPUClass { const PPCHash64Options *hash64_opts; struct ppc_radix_page_info *radix_page_info; uint32_t lrg_decr_bits; + int n_host_threads; void (*init_proc)(CPUPPCState *env); int (*check_pow)(CPUPPCState *env); int (*handle_mmu_fault)(PowerPCCPU *cpu, vaddr eaddr, int rwx, int mmu_idx); diff --git a/target/ppc/translate_init.inc.c b/target/ppc/translate_init.inc.c index 023138c2f9..0fb11c7ac6 100644 --- a/target/ppc/translate_init.inc.c +++ b/target/ppc/translate_init.inc.c @@ -8770,6 +8770,7 @@ POWERPC_FAMILY(POWER8)(ObjectClass *oc, void *data) pcc->handle_mmu_fault = ppc_hash64_handle_mmu_fault; pcc->hash64_opts = &ppc_hash64_opts_POWER7; pcc->lrg_decr_bits = 32; + pcc->n_host_threads = 8; #endif pcc->excp_model = POWERPC_EXCP_POWER8; pcc->bus_model = PPC_FLAGS_INPUT_POWER7; @@ -8981,6 +8982,7 @@ POWERPC_FAMILY(POWER9)(ObjectClass *oc, void *data) pcc->hash64_opts = &ppc_hash64_opts_POWER7; pcc->radix_page_info = &POWER9_radix_page_info; pcc->lrg_decr_bits = 56; + pcc->n_host_threads = 4; #endif pcc->excp_model = POWERPC_EXCP_POWER9; pcc->bus_model = PPC_FLAGS_INPUT_POWER9; |