lkml.org 
[lkml]   [2020]   [Sep]   [30]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
SubjectRe: [PATCH 03/22] kvm: mmu: Init / Uninit the TDP MMU
From
Date
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

\
 
 \ /
  Last update: 2020-09-30 19:40    [W:0.139 / U:0.272 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site