diff options
Diffstat (limited to 'hw/i386/pc.c')
| -rw-r--r-- | hw/i386/pc.c | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/hw/i386/pc.c b/hw/i386/pc.c index 28f958dee6..197d218715 100644 --- a/hw/i386/pc.c +++ b/hw/i386/pc.c @@ -54,6 +54,7 @@ #include "qemu/config-file.h" #include "hw/acpi/acpi.h" #include "hw/cpu/icc_bus.h" +#include "hw/boards.h" /* debug PC/ISA interrupts */ //#define DEBUG_IRQ @@ -919,6 +920,30 @@ static X86CPU *pc_new_cpu(const char *cpu_model, int64_t apic_id, return cpu; } +static const char *current_cpu_model; + +void pc_hot_add_cpu(const int64_t id, Error **errp) +{ + DeviceState *icc_bridge; + int64_t apic_id = x86_cpu_apic_id_from_index(id); + + if (cpu_exists(apic_id)) { + error_setg(errp, "Unable to add CPU: %" PRIi64 + ", it already exists", id); + return; + } + + if (id >= max_cpus) { + error_setg(errp, "Unable to add CPU: %" PRIi64 + ", max allowed: %d", id, max_cpus - 1); + return; + } + + icc_bridge = DEVICE(object_resolve_path_type("icc-bridge", + TYPE_ICC_BRIDGE, NULL)); + pc_new_cpu(current_cpu_model, apic_id, icc_bridge, errp); +} + void pc_cpus_init(const char *cpu_model, DeviceState *icc_bridge) { int i; @@ -933,6 +958,7 @@ void pc_cpus_init(const char *cpu_model, DeviceState *icc_bridge) cpu_model = "qemu32"; #endif } + current_cpu_model = cpu_model; for (i = 0; i < smp_cpus; i++) { cpu = pc_new_cpu(cpu_model, x86_cpu_apic_id_from_index(i), |