pc: init pcms->apic_id_limit once and use it throughout pc.c
Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Marcel Apfelbaum <marcel@redhat.com>
diff --git a/hw/i386/pc.c b/hw/i386/pc.c
index b954134..a469979 100644
--- a/hw/i386/pc.c
+++ b/hw/i386/pc.c
@@ -699,18 +699,6 @@
}
}
-/* Calculates the limit to CPU APIC ID values
- *
- * This function returns the limit for the APIC ID value, so that all
- * CPU APIC IDs are < pc_apic_id_limit().
- *
- * This is used for FW_CFG_MAX_CPUS. See comments on bochs_bios_init().
- */
-static unsigned int pc_apic_id_limit(unsigned int max_cpus)
-{
- return x86_cpu_apic_id_from_index(max_cpus - 1) + 1;
-}
-
static void pc_build_smbios(FWCfgState *fw_cfg)
{
uint8_t *smbios_tables, *smbios_anchor;
@@ -748,12 +736,11 @@
}
}
-static FWCfgState *bochs_bios_init(AddressSpace *as)
+static FWCfgState *bochs_bios_init(AddressSpace *as, PCMachineState *pcms)
{
FWCfgState *fw_cfg;
uint64_t *numa_fw_cfg;
int i, j;
- unsigned int apic_id_limit = pc_apic_id_limit(max_cpus);
fw_cfg = fw_cfg_init_io_dma(FW_CFG_IO_BASE, FW_CFG_IO_BASE + 4, as);
@@ -771,7 +758,7 @@
* [1] The only kind of "CPU identifier" used between SeaBIOS and QEMU is
* the APIC ID, not the "CPU index"
*/
- fw_cfg_add_i16(fw_cfg, FW_CFG_MAX_CPUS, (uint16_t)apic_id_limit);
+ fw_cfg_add_i16(fw_cfg, FW_CFG_MAX_CPUS, (uint16_t)pcms->apic_id_limit);
fw_cfg_add_i64(fw_cfg, FW_CFG_RAM_SIZE, (uint64_t)ram_size);
fw_cfg_add_bytes(fw_cfg, FW_CFG_ACPI_TABLES,
acpi_tables, acpi_tables_len);
@@ -789,11 +776,11 @@
* of nodes, one word for each VCPU->node and one word for each node to
* hold the amount of memory.
*/
- numa_fw_cfg = g_new0(uint64_t, 1 + apic_id_limit + nb_numa_nodes);
+ numa_fw_cfg = g_new0(uint64_t, 1 + pcms->apic_id_limit + nb_numa_nodes);
numa_fw_cfg[0] = cpu_to_le64(nb_numa_nodes);
for (i = 0; i < max_cpus; i++) {
unsigned int apic_id = x86_cpu_apic_id_from_index(i);
- assert(apic_id < apic_id_limit);
+ assert(apic_id < pcms->apic_id_limit);
for (j = 0; j < nb_numa_nodes; j++) {
if (test_bit(i, numa_info[j].node_cpu)) {
numa_fw_cfg[apic_id + 1] = cpu_to_le64(j);
@@ -802,10 +789,11 @@
}
}
for (i = 0; i < nb_numa_nodes; i++) {
- numa_fw_cfg[apic_id_limit + 1 + i] = cpu_to_le64(numa_info[i].node_mem);
+ numa_fw_cfg[pcms->apic_id_limit + 1 + i] =
+ cpu_to_le64(numa_info[i].node_mem);
}
fw_cfg_add_bytes(fw_cfg, FW_CFG_NUMA, numa_fw_cfg,
- (1 + apic_id_limit + nb_numa_nodes) *
+ (1 + pcms->apic_id_limit + nb_numa_nodes) *
sizeof(*numa_fw_cfg));
return fw_cfg;
@@ -1119,7 +1107,6 @@
int i;
X86CPU *cpu = NULL;
MachineState *machine = MACHINE(pcms);
- unsigned long apic_id_limit;
/* init CPUs */
if (machine->cpu_model == NULL) {
@@ -1130,10 +1117,17 @@
#endif
}
- apic_id_limit = pc_apic_id_limit(max_cpus);
- if (apic_id_limit > ACPI_CPU_HOTPLUG_ID_LIMIT) {
- error_report("max_cpus is too large. APIC ID of last CPU is %lu",
- apic_id_limit - 1);
+ /* Calculates the limit to CPU APIC ID values
+ *
+ * Limit for the APIC ID value, so that all
+ * CPU APIC IDs are < pcms->apic_id_limit.
+ *
+ * This is used for FW_CFG_MAX_CPUS. See comments on bochs_bios_init().
+ */
+ pcms->apic_id_limit = x86_cpu_apic_id_from_index(max_cpus - 1) + 1;
+ if (pcms->apic_id_limit > ACPI_CPU_HOTPLUG_ID_LIMIT) {
+ error_report("max_cpus is too large. APIC ID of last CPU is %u",
+ pcms->apic_id_limit - 1);
exit(1);
}
@@ -1186,7 +1180,6 @@
{
int i, j;
- pcms->apic_id_limit = pc_apic_id_limit(max_cpus);
pcms->apic_xrupt_override = kvm_allows_irq0_override();
pcms->numa_nodes = nb_numa_nodes;
pcms->node_mem = g_malloc0(pcms->numa_nodes *
@@ -1371,7 +1364,7 @@
option_rom_mr,
1);
- fw_cfg = bochs_bios_init(&address_space_memory);
+ fw_cfg = bochs_bios_init(&address_space_memory, pcms);
rom_set_fw(fw_cfg);
