On 2016-02-21 19:10, David Kiarie wrote: > diff --git a/qemu-options.hx b/qemu-options.hx > index 2f0465e..dad160f 100644 > --- a/qemu-options.hx > +++ b/qemu-options.hx > @@ -38,7 +38,7 @@ DEF("machine", HAS_ARG, QEMU_OPTION_machine, \ > " kvm_shadow_mem=size of KVM shadow MMU\n" > " dump-guest-core=on|off include guest memory in a core > dump (default=on)\n" > " mem-merge=on|off controls memory merge support > (default: on)\n" > - " iommu=on|off controls emulated Intel IOMMU (VT-d) > support (default=off)\n" > + " iommu=amd|intel enables and selects the emulated IOMMU > (default: off)\n"
We should also support "iommu=off" or "none" to explicitly disable it. That is consistent with other switches, and maybe there will once be a machine type (chipset) with IOMMU enabled by default. Jan
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