Messages in this thread | | | Subject | Re: [PATCH 03/22] kvm: mmu: Init / Uninit the TDP MMU | From | Paolo Bonzini <> | Date | Wed, 30 Sep 2020 19:39:38 +0200 |
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On 30/09/20 18:57, Sean Christopherson wrote: >> + >> +static bool __read_mostly tdp_mmu_enabled = true; >> +module_param_named(tdp_mmu, tdp_mmu_enabled, bool, 0644); > This param should not exist until the TDP MMU is fully functional, e.g. running > KVM against "kvm: mmu: Support zapping SPTEs in the TDP MMU" immediately hits a > BUG() in the rmap code. I haven't wrapped my head around the entire series to > grok whether it make sense to incrementally enable the TDP MMU, but my gut says > that's probably non-sensical.
No, it doesn't. Whether to add the module parameter is kind of secondary, but I agree it shouldn't be true---not even at the end of this series, since fast page fault for example is not implemented yet.
Paolo
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