aboutsummaryrefslogtreecommitdiff
path: root/hw/ppc/spapr.c
diff options
context:
space:
mode:
Diffstat (limited to 'hw/ppc/spapr.c')
-rw-r--r--hw/ppc/spapr.c284
1 files changed, 159 insertions, 125 deletions
diff --git a/hw/ppc/spapr.c b/hw/ppc/spapr.c
index 61d04c6c36..bcf7ffa846 100644
--- a/hw/ppc/spapr.c
+++ b/hw/ppc/spapr.c
@@ -165,6 +165,27 @@ static int spapr_fixup_cpu_smt_dt(void *fdt, int offset, PowerPCCPU *cpu,
return ret;
}
+static int spapr_fixup_cpu_numa_dt(void *fdt, int offset, CPUState *cs)
+{
+ int ret = 0;
+ PowerPCCPU *cpu = POWERPC_CPU(cs);
+ int index = ppc_get_vcpu_dt_id(cpu);
+ uint32_t associativity[] = {cpu_to_be32(0x5),
+ cpu_to_be32(0x0),
+ cpu_to_be32(0x0),
+ cpu_to_be32(0x0),
+ cpu_to_be32(cs->numa_node),
+ cpu_to_be32(index)};
+
+ /* Advertise NUMA via ibm,associativity */
+ if (nb_numa_nodes > 1) {
+ ret = fdt_setprop(fdt, offset, "ibm,associativity", associativity,
+ sizeof(associativity));
+ }
+
+ return ret;
+}
+
static int spapr_fixup_cpu_dt(void *fdt, sPAPRMachineState *spapr)
{
int ret = 0, offset, cpus_offset;
@@ -177,12 +198,6 @@ static int spapr_fixup_cpu_dt(void *fdt, sPAPRMachineState *spapr)
PowerPCCPU *cpu = POWERPC_CPU(cs);
DeviceClass *dc = DEVICE_GET_CLASS(cs);
int index = ppc_get_vcpu_dt_id(cpu);
- uint32_t associativity[] = {cpu_to_be32(0x5),
- cpu_to_be32(0x0),
- cpu_to_be32(0x0),
- cpu_to_be32(0x0),
- cpu_to_be32(cs->numa_node),
- cpu_to_be32(index)};
if ((index % smt) != 0) {
continue;
@@ -206,20 +221,17 @@ static int spapr_fixup_cpu_dt(void *fdt, sPAPRMachineState *spapr)
}
}
- if (nb_numa_nodes > 1) {
- ret = fdt_setprop(fdt, offset, "ibm,associativity", associativity,
- sizeof(associativity));
- if (ret < 0) {
- return ret;
- }
- }
-
ret = fdt_setprop(fdt, offset, "ibm,pft-size",
pft_size_prop, sizeof(pft_size_prop));
if (ret < 0) {
return ret;
}
+ ret = spapr_fixup_cpu_numa_dt(fdt, offset, cs);
+ if (ret < 0) {
+ return ret;
+ }
+
ret = spapr_fixup_cpu_smt_dt(fdt, offset, cpu,
ppc_get_compat_smt_threads(cpu));
if (ret < 0) {
@@ -302,18 +314,13 @@ static void *spapr_create_fdt_skel(hwaddr initrd_base,
uint32_t epow_irq)
{
void *fdt;
- CPUState *cs;
uint32_t start_prop = cpu_to_be32(initrd_base);
uint32_t end_prop = cpu_to_be32(initrd_base + initrd_size);
GString *hypertas = g_string_sized_new(256);
GString *qemu_hypertas = g_string_sized_new(256);
uint32_t refpoints[] = {cpu_to_be32(0x4), cpu_to_be32(0x4)};
uint32_t interrupt_server_ranges_prop[] = {0, cpu_to_be32(max_cpus)};
- int smt = kvmppc_smt_threads();
unsigned char vec5[] = {0x0, 0x0, 0x0, 0x0, 0x0, 0x80};
- QemuOpts *opts = qemu_opts_find(qemu_find_opts("smp-opts"), NULL);
- unsigned sockets = opts ? qemu_opt_get_number(opts, "sockets", 0) : 0;
- uint32_t cpus_per_socket = sockets ? (smp_cpus / sockets) : 1;
char *buf;
add_str(hypertas, "hcall-pft");
@@ -399,107 +406,6 @@ static void *spapr_create_fdt_skel(hwaddr initrd_base,
_FDT((fdt_end_node(fdt)));
- /* cpus */
- _FDT((fdt_begin_node(fdt, "cpus")));
-
- _FDT((fdt_property_cell(fdt, "#address-cells", 0x1)));
- _FDT((fdt_property_cell(fdt, "#size-cells", 0x0)));
-
- CPU_FOREACH(cs) {
- PowerPCCPU *cpu = POWERPC_CPU(cs);
- CPUPPCState *env = &cpu->env;
- DeviceClass *dc = DEVICE_GET_CLASS(cs);
- PowerPCCPUClass *pcc = POWERPC_CPU_GET_CLASS(cs);
- int index = ppc_get_vcpu_dt_id(cpu);
- char *nodename;
- uint32_t segs[] = {cpu_to_be32(28), cpu_to_be32(40),
- 0xffffffff, 0xffffffff};
- uint32_t tbfreq = kvm_enabled() ? kvmppc_get_tbfreq() : TIMEBASE_FREQ;
- uint32_t cpufreq = kvm_enabled() ? kvmppc_get_clockfreq() : 1000000000;
- uint32_t page_sizes_prop[64];
- size_t page_sizes_prop_size;
-
- if ((index % smt) != 0) {
- continue;
- }
-
- nodename = g_strdup_printf("%s@%x", dc->fw_name, index);
-
- _FDT((fdt_begin_node(fdt, nodename)));
-
- g_free(nodename);
-
- _FDT((fdt_property_cell(fdt, "reg", index)));
- _FDT((fdt_property_string(fdt, "device_type", "cpu")));
-
- _FDT((fdt_property_cell(fdt, "cpu-version", env->spr[SPR_PVR])));
- _FDT((fdt_property_cell(fdt, "d-cache-block-size",
- env->dcache_line_size)));
- _FDT((fdt_property_cell(fdt, "d-cache-line-size",
- env->dcache_line_size)));
- _FDT((fdt_property_cell(fdt, "i-cache-block-size",
- env->icache_line_size)));
- _FDT((fdt_property_cell(fdt, "i-cache-line-size",
- env->icache_line_size)));
-
- if (pcc->l1_dcache_size) {
- _FDT((fdt_property_cell(fdt, "d-cache-size", pcc->l1_dcache_size)));
- } else {
- fprintf(stderr, "Warning: Unknown L1 dcache size for cpu\n");
- }
- if (pcc->l1_icache_size) {
- _FDT((fdt_property_cell(fdt, "i-cache-size", pcc->l1_icache_size)));
- } else {
- fprintf(stderr, "Warning: Unknown L1 icache size for cpu\n");
- }
-
- _FDT((fdt_property_cell(fdt, "timebase-frequency", tbfreq)));
- _FDT((fdt_property_cell(fdt, "clock-frequency", cpufreq)));
- _FDT((fdt_property_cell(fdt, "ibm,slb-size", env->slb_nr)));
- _FDT((fdt_property_string(fdt, "status", "okay")));
- _FDT((fdt_property(fdt, "64-bit", NULL, 0)));
-
- if (env->spr_cb[SPR_PURR].oea_read) {
- _FDT((fdt_property(fdt, "ibm,purr", NULL, 0)));
- }
-
- if (env->mmu_model & POWERPC_MMU_1TSEG) {
- _FDT((fdt_property(fdt, "ibm,processor-segment-sizes",
- segs, sizeof(segs))));
- }
-
- /* Advertise VMX/VSX (vector extensions) if available
- * 0 / no property == no vector extensions
- * 1 == VMX / Altivec available
- * 2 == VSX available */
- if (env->insns_flags & PPC_ALTIVEC) {
- uint32_t vmx = (env->insns_flags2 & PPC2_VSX) ? 2 : 1;
-
- _FDT((fdt_property_cell(fdt, "ibm,vmx", vmx)));
- }
-
- /* Advertise DFP (Decimal Floating Point) if available
- * 0 / no property == no DFP
- * 1 == DFP available */
- if (env->insns_flags2 & PPC2_DFP) {
- _FDT((fdt_property_cell(fdt, "ibm,dfp", 1)));
- }
-
- page_sizes_prop_size = create_page_sizes_prop(env, page_sizes_prop,
- sizeof(page_sizes_prop));
- if (page_sizes_prop_size) {
- _FDT((fdt_property(fdt, "ibm,segment-page-sizes",
- page_sizes_prop, page_sizes_prop_size)));
- }
-
- _FDT((fdt_property_cell(fdt, "ibm,chip-id",
- cs->cpu_index / cpus_per_socket)));
-
- _FDT((fdt_end_node(fdt)));
- }
-
- _FDT((fdt_end_node(fdt)));
-
/* RTAS */
_FDT((fdt_begin_node(fdt, "rtas")));
@@ -700,6 +606,137 @@ static int spapr_populate_memory(sPAPRMachineState *spapr, void *fdt)
return 0;
}
+static void spapr_populate_cpu_dt(CPUState *cs, void *fdt, int offset,
+ sPAPRMachineState *spapr)
+{
+ PowerPCCPU *cpu = POWERPC_CPU(cs);
+ CPUPPCState *env = &cpu->env;
+ PowerPCCPUClass *pcc = POWERPC_CPU_GET_CLASS(cs);
+ int index = ppc_get_vcpu_dt_id(cpu);
+ uint32_t segs[] = {cpu_to_be32(28), cpu_to_be32(40),
+ 0xffffffff, 0xffffffff};
+ uint32_t tbfreq = kvm_enabled() ? kvmppc_get_tbfreq() : TIMEBASE_FREQ;
+ uint32_t cpufreq = kvm_enabled() ? kvmppc_get_clockfreq() : 1000000000;
+ uint32_t page_sizes_prop[64];
+ size_t page_sizes_prop_size;
+ QemuOpts *opts = qemu_opts_find(qemu_find_opts("smp-opts"), NULL);
+ unsigned sockets = opts ? qemu_opt_get_number(opts, "sockets", 0) : 0;
+ uint32_t cpus_per_socket = sockets ? (smp_cpus / sockets) : 1;
+ uint32_t pft_size_prop[] = {0, cpu_to_be32(spapr->htab_shift)};
+
+ _FDT((fdt_setprop_cell(fdt, offset, "reg", index)));
+ _FDT((fdt_setprop_string(fdt, offset, "device_type", "cpu")));
+
+ _FDT((fdt_setprop_cell(fdt, offset, "cpu-version", env->spr[SPR_PVR])));
+ _FDT((fdt_setprop_cell(fdt, offset, "d-cache-block-size",
+ env->dcache_line_size)));
+ _FDT((fdt_setprop_cell(fdt, offset, "d-cache-line-size",
+ env->dcache_line_size)));
+ _FDT((fdt_setprop_cell(fdt, offset, "i-cache-block-size",
+ env->icache_line_size)));
+ _FDT((fdt_setprop_cell(fdt, offset, "i-cache-line-size",
+ env->icache_line_size)));
+
+ if (pcc->l1_dcache_size) {
+ _FDT((fdt_setprop_cell(fdt, offset, "d-cache-size",
+ pcc->l1_dcache_size)));
+ } else {
+ fprintf(stderr, "Warning: Unknown L1 dcache size for cpu\n");
+ }
+ if (pcc->l1_icache_size) {
+ _FDT((fdt_setprop_cell(fdt, offset, "i-cache-size",
+ pcc->l1_icache_size)));
+ } else {
+ fprintf(stderr, "Warning: Unknown L1 icache size for cpu\n");
+ }
+
+ _FDT((fdt_setprop_cell(fdt, offset, "timebase-frequency", tbfreq)));
+ _FDT((fdt_setprop_cell(fdt, offset, "clock-frequency", cpufreq)));
+ _FDT((fdt_setprop_cell(fdt, offset, "ibm,slb-size", env->slb_nr)));
+ _FDT((fdt_setprop_string(fdt, offset, "status", "okay")));
+ _FDT((fdt_setprop(fdt, offset, "64-bit", NULL, 0)));
+
+ if (env->spr_cb[SPR_PURR].oea_read) {
+ _FDT((fdt_setprop(fdt, offset, "ibm,purr", NULL, 0)));
+ }
+
+ if (env->mmu_model & POWERPC_MMU_1TSEG) {
+ _FDT((fdt_setprop(fdt, offset, "ibm,processor-segment-sizes",
+ segs, sizeof(segs))));
+ }
+
+ /* Advertise VMX/VSX (vector extensions) if available
+ * 0 / no property == no vector extensions
+ * 1 == VMX / Altivec available
+ * 2 == VSX available */
+ if (env->insns_flags & PPC_ALTIVEC) {
+ uint32_t vmx = (env->insns_flags2 & PPC2_VSX) ? 2 : 1;
+
+ _FDT((fdt_setprop_cell(fdt, offset, "ibm,vmx", vmx)));
+ }
+
+ /* Advertise DFP (Decimal Floating Point) if available
+ * 0 / no property == no DFP
+ * 1 == DFP available */
+ if (env->insns_flags2 & PPC2_DFP) {
+ _FDT((fdt_setprop_cell(fdt, offset, "ibm,dfp", 1)));
+ }
+
+ page_sizes_prop_size = create_page_sizes_prop(env, page_sizes_prop,
+ sizeof(page_sizes_prop));
+ if (page_sizes_prop_size) {
+ _FDT((fdt_setprop(fdt, offset, "ibm,segment-page-sizes",
+ page_sizes_prop, page_sizes_prop_size)));
+ }
+
+ _FDT((fdt_setprop_cell(fdt, offset, "ibm,chip-id",
+ cs->cpu_index / cpus_per_socket)));
+
+ _FDT((fdt_setprop(fdt, offset, "ibm,pft-size",
+ pft_size_prop, sizeof(pft_size_prop))));
+
+ _FDT(spapr_fixup_cpu_numa_dt(fdt, offset, cs));
+
+ _FDT(spapr_fixup_cpu_smt_dt(fdt, offset, cpu,
+ ppc_get_compat_smt_threads(cpu)));
+}
+
+static void spapr_populate_cpus_dt_node(void *fdt, sPAPRMachineState *spapr)
+{
+ CPUState *cs;
+ int cpus_offset;
+ char *nodename;
+ int smt = kvmppc_smt_threads();
+
+ cpus_offset = fdt_add_subnode(fdt, 0, "cpus");
+ _FDT(cpus_offset);
+ _FDT((fdt_setprop_cell(fdt, cpus_offset, "#address-cells", 0x1)));
+ _FDT((fdt_setprop_cell(fdt, cpus_offset, "#size-cells", 0x0)));
+
+ /*
+ * We walk the CPUs in reverse order to ensure that CPU DT nodes
+ * created by fdt_add_subnode() end up in the right order in FDT
+ * for the guest kernel the enumerate the CPUs correctly.
+ */
+ CPU_FOREACH_REVERSE(cs) {
+ PowerPCCPU *cpu = POWERPC_CPU(cs);
+ int index = ppc_get_vcpu_dt_id(cpu);
+ DeviceClass *dc = DEVICE_GET_CLASS(cs);
+ int offset;
+
+ if ((index % smt) != 0) {
+ continue;
+ }
+
+ nodename = g_strdup_printf("%s@%x", dc->fw_name, index);
+ offset = fdt_add_subnode(fdt, cpus_offset, nodename);
+ g_free(nodename);
+ _FDT(offset);
+ spapr_populate_cpu_dt(cs, fdt, offset, spapr);
+ }
+
+}
+
static void spapr_finalize_fdt(sPAPRMachineState *spapr,
hwaddr fdt_addr,
hwaddr rtas_addr,
@@ -745,11 +782,8 @@ static void spapr_finalize_fdt(sPAPRMachineState *spapr,
fprintf(stderr, "Couldn't set up RTAS device tree properties\n");
}
- /* Advertise NUMA via ibm,associativity */
- ret = spapr_fixup_cpu_dt(fdt, spapr);
- if (ret < 0) {
- fprintf(stderr, "Couldn't finalize CPU device tree properties\n");
- }
+ /* cpus */
+ spapr_populate_cpus_dt_node(fdt, spapr);
bootlist = get_boot_devices_list(&cb, true);
if (cb && bootlist) {
generated by cgit v1.2.3 (git 2.26.2) at 2024-12-25 08:16:34 +0000