On Sat, Oct 13, 2012 at 10:32:13PM -0400, Sasha Levin wrote: > On 10/13/2012 06:29 PM, Chegu Vinod wrote: > > Hello, > > > > Wanted to get a clarification about KVM_MAX_VCPUS(currently set to 254) > > in kvm_host.h file. The kvm_vcpu *vcpus array is sized based on KVM_MAX_VCPUS. > > (i.e. a max of 254 elements in the array). > > > > An 8bit APIC id should allow for 256 ID's. Reserving one for Broadcast should > > leave 255 ID's. Is there one more ID reserved for some other purpose ? (hence > > leading to KVM_MAX_VCPUS being set to 254 and not 255). > > Another ID goes to the IO-APIC. > This is not really needed on KVM. We can enlarge KVM_MAX_VCPUS to 255. -- Gleb. -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
