On Wed, 4 May 2022 08:16:39 -0500 Suravee Suthikulpanit <suravee.suthikulpa...@amd.com> wrote:
> This is the maximum number of vCPU supported by > the AMD x2APIC virtualization. > > Signed-off-by: Suravee Suthikulpanit <suravee.suthikulpa...@amd.com> > --- > hw/i386/pc_q35.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/hw/i386/pc_q35.c b/hw/i386/pc_q35.c > index 302288342a..e82b1c690d 100644 > --- a/hw/i386/pc_q35.c > +++ b/hw/i386/pc_q35.c > @@ -357,7 +357,7 @@ static void pc_q35_machine_options(MachineClass *m) > 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; > + m->max_cpus = 512; Maybe we should bump it to KVM VCPU maximum, and make sure we error out if asked for combination of hardware/irqchip is not usable. > } > > static void pc_q35_7_1_machine_options(MachineClass *m)