diff options
| author | Suravee Suthikulpanit <suravee.suthikulpanit@amd.com> | 2023-06-07 15:57:17 -0500 |
|---|---|---|
| committer | Michael S. Tsirkin <mst@redhat.com> | 2023-06-26 09:50:00 -0400 |
| commit | e0001297eb2f8569e950e55dbda8ad686e4155fb (patch) | |
| tree | 669aa0532aa076882d0999c80f5687b51cea0345 /hw | |
| parent | c85cad8105e647e6aae1b0d8405c49d91994b158 (diff) | |
| download | qemu-e0001297eb2f8569e950e55dbda8ad686e4155fb.zip qemu-e0001297eb2f8569e950e55dbda8ad686e4155fb.tar.gz qemu-e0001297eb2f8569e950e55dbda8ad686e4155fb.tar.bz2 | |
pc: q35: Bump max_cpus to 1024
Since KVM_MAX_VCPUS is currently defined to 1024 for x86 as shown in
arch/x86/include/asm/kvm_host.h, update QEMU limits to the same number.
In case KVM could not support the specified number of vcpus, QEMU would
return the following error message:
qemu-system-x86_64: kvm_init_vcpu: kvm_get_vcpu failed (xxx): Invalid argument
Also, keep max_cpus at 288 for machine version 8.0 and older.
Cc: Igor Mammedov <imammedo@redhat.com>
Cc: Daniel P. Berrangé <berrange@redhat.com>
Cc: Michael S. Tsirkin <mst@redhat.com>
Cc: Julia Suvorova <jusual@redhat.com>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Signed-off-by: Suravee Suthikulpanit <suravee.suthikulpanit@amd.com>
Message-Id: <20230607205717.737749-3-suravee.suthikulpanit@amd.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Diffstat (limited to 'hw')
| -rw-r--r-- | hw/i386/pc_q35.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/hw/i386/pc_q35.c b/hw/i386/pc_q35.c index cf68b80..11a7084 100644 --- a/hw/i386/pc_q35.c +++ b/hw/i386/pc_q35.c @@ -368,12 +368,12 @@ static void pc_q35_machine_options(MachineClass *m) m->default_nic = "e1000e"; m->default_kernel_irqchip_split = false; m->no_floppy = 1; + m->max_cpus = 1024; m->no_parallel = !module_object_class_by_name(TYPE_ISA_PARALLEL); machine_class_allow_dynamic_sysbus_dev(m, TYPE_AMD_IOMMU_DEVICE); machine_class_allow_dynamic_sysbus_dev(m, TYPE_INTEL_IOMMU_DEVICE); machine_class_allow_dynamic_sysbus_dev(m, TYPE_RAMFB_DEVICE); machine_class_allow_dynamic_sysbus_dev(m, TYPE_VMBUS_BRIDGE); - m->max_cpus = 288; } static void pc_q35_8_1_machine_options(MachineClass *m) @@ -396,6 +396,7 @@ static void pc_q35_8_0_machine_options(MachineClass *m) /* For pc-q35-8.0 and older, use SMBIOS 2.8 by default */ pcmc->default_smbios_ep_type = SMBIOS_ENTRY_POINT_TYPE_32; + m->max_cpus = 288; } DEFINE_Q35_MACHINE(v8_0, "pc-q35-8.0", NULL, |