On Mon, 10 Jan 2022 at 15:45, Marc Zyngier <m...@kernel.org> wrote: > $ /home/maz/vminstall/qemu-hack -m 1G -smp 256 -cpu host -machine > virt,accel=kvm,gic-version=3,highmem=on -nographic -drive > if=pflash,format=raw,readonly=on,file=/usr/share/AAVMF/AAVMF_CODE.fd > qemu-hack: warning: Number of SMP cpus requested (256) exceeds the > recommended cpus supported by KVM (8) > qemu-hack: warning: Number of hotpluggable cpus requested (256) exceeds the > recommended cpus supported by KVM (8) > qemu-hack: Capacity of the redist regions(123) is less than number of > vcpus(256)
Side question: why is KVM_CAP_NR_VCPUS returning 8 for "recommended cpus supported by KVM" ? Is something still assuming GICv2 CPU limits? -- PMM
