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[Qemu-devel] [PATCH 20/21] target-i386: implement machine->hot_add_cpu h
From: |
Igor Mammedov |
Subject: |
[Qemu-devel] [PATCH 20/21] target-i386: implement machine->hot_add_cpu hook |
Date: |
Tue, 23 Apr 2013 10:29:54 +0200 |
Signed-off-by: Igor Mammedov <address@hidden>
---
hw/i386/pc.c | 22 ++++++++++++++++++++++
1 files changed, 22 insertions(+), 0 deletions(-)
diff --git a/hw/i386/pc.c b/hw/i386/pc.c
index 5e50127..b649ed5 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
@@ -914,6 +915,25 @@ static X86CPU *pc_new_cpu(const char *cpu_model, int64_t
apic_id, Error **errp)
return cpu;
}
+static void do_cpu_hot_add(const int64_t id, Error **errp)
+{
+ 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;
+ }
+
+ pc_new_cpu(machine_args->cpu_model, apic_id, errp);
+}
+
void pc_cpus_init(const char *cpu_model)
{
int i;
@@ -928,7 +948,9 @@ void pc_cpus_init(const char *cpu_model)
#else
cpu_model = "qemu32";
#endif
+ machine_args->cpu_model = cpu_model;
}
+ current_machine->hot_add_cpu = do_cpu_hot_add;
icc_bridge = SYS_BUS_DEVICE(object_resolve_path_type("icc-bridge",
TYPE_ICC_BRIDGE, NULL));
--
1.7.1
- Re: [Qemu-devel] [PATCH 08/19 v7] acpi_piix4: add infrastructure to send CPU hot-plug GPE to guest, (continued)
[Qemu-devel] [PATCH 10/21 v8] acpi_piix4: add infrastructure to send CPU hot-plug GPE to guest, Igor Mammedov, 2013/04/24
[Qemu-devel] [PATCH 15/21] target-i386: kvmvapic: make expilict dependency on sysbus.h, Igor Mammedov, 2013/04/23
[Qemu-devel] [PATCH 18/21] target-i386: move IOAPIC to ICC bus, Igor Mammedov, 2013/04/23
[Qemu-devel] [PATCH 16/21] target-i386: move APIC to ICC bus, Igor Mammedov, 2013/04/23
[Qemu-devel] [PATCH 19/21] add hot_add_cpu hook to QEMUMachine and export machine_args, Igor Mammedov, 2013/04/23
[Qemu-devel] [PATCH 14/21] target-i386: replace MSI_SPACE_SIZE with APIC_SPACE_SIZE, Igor Mammedov, 2013/04/23
[Qemu-devel] [PATCH 20/21] target-i386: implement machine->hot_add_cpu hook,
Igor Mammedov <=
[Qemu-devel] [PATCH 21/21] QMP: add cpu-add command, Igor Mammedov, 2013/04/23
[Qemu-devel] [PATCH 17/21] introduce memory_region_get_address() and use it in kvm/ioapic, Igor Mammedov, 2013/04/23