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  • Dave Martin's avatar
    arm64: Add basic SVE support · 0eb79e44
    Dave Martin authored
    This patch adds an --sve command line option to allow the Scalable
    Vector Extension to be enabled when creating a guest.
    This requires use of the new KVM_ARM_VCPU_FINALIZE ioctl before the
    vcpu is runnable, so a new hook kvm_cpu__configure_features() is
    added to provide an appropiate place to do this work.
    The kernel does not enable SVE by default, and for now kvmtool
    adopts the same policy: without --sve, SVE is not enabled for the
    guest even if the host supports it.
    Signed-off-by: default avatarDave Martin <>