Re: [PATCH v4 2/6] hw/arm/virt: Add a control for the the highmem redistributors

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On Mon, 10 Jan 2022 at 15:45, Marc Zyngier <maz@xxxxxxxxxx> 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



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