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| author | Igor Mammedov <imammedo@redhat.com> | 2013-04-30 18:00:53 +0200 |
|---|---|---|
| committer | Andreas Färber <afaerber@suse.de> | 2013-05-01 13:06:07 +0200 |
| commit | c649983b582687bbdb4019e308f015913e31065e (patch) | |
| tree | 39a19e99cb49a77cc5389b9a0e75b43b66935cd4 | |
| parent | 69ca3ea5e192251f27510554611bcff6f036a00b (diff) | |
| download | hqemu-c649983b582687bbdb4019e308f015913e31065e.zip hqemu-c649983b582687bbdb4019e308f015913e31065e.tar.gz | |
pc: Implement QEMUMachine::hot_add_cpu hook
Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
| -rw-r--r-- | hw/i386/pc.c | 26 | ||||
| -rw-r--r-- | hw/i386/pc_piix.c | 1 | ||||
| -rw-r--r-- | hw/i386/pc_q35.c | 1 | ||||
| -rw-r--r-- | include/hw/i386/pc.h | 1 |
4 files changed, 29 insertions, 0 deletions
diff --git a/hw/i386/pc.c b/hw/i386/pc.c index 28f958d..197d218 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), diff --git a/hw/i386/pc_piix.c b/hw/i386/pc_piix.c index 251e18f..fe52e5f 100644 --- a/hw/i386/pc_piix.c +++ b/hw/i386/pc_piix.c @@ -335,6 +335,7 @@ static QEMUMachine pc_i440fx_machine_v1_5 = { .alias = "pc", .desc = "Standard PC (i440FX + PIIX, 1996)", .init = pc_init_pci, + .hot_add_cpu = pc_hot_add_cpu, .max_cpus = 255, .is_default = 1, DEFAULT_MACHINE_OPTIONS, diff --git a/hw/i386/pc_q35.c b/hw/i386/pc_q35.c index f46295b..52511e2 100644 --- a/hw/i386/pc_q35.c +++ b/hw/i386/pc_q35.c @@ -220,6 +220,7 @@ static QEMUMachine pc_q35_machine_v1_5 = { .alias = "q35", .desc = "Standard PC (Q35 + ICH9, 2009)", .init = pc_q35_init, + .hot_add_cpu = pc_hot_add_cpu, .max_cpus = 255, DEFAULT_MACHINE_OPTIONS, }; diff --git a/include/hw/i386/pc.h b/include/hw/i386/pc.h index d0bc972..41869e5 100644 --- a/include/hw/i386/pc.h +++ b/include/hw/i386/pc.h @@ -79,6 +79,7 @@ void pc_register_ferr_irq(qemu_irq irq); void pc_acpi_smi_interrupt(void *opaque, int irq, int level); void pc_cpus_init(const char *cpu_model, DeviceState *icc_bridge); +void pc_hot_add_cpu(const int64_t id, Error **errp); void pc_acpi_init(const char *default_dsdt); void *pc_memory_init(MemoryRegion *system_memory, const char *kernel_filename, |
