Re: [PATCH v19 058/130] KVM: x86/mmu: Add a private pointer to struct kvm_mmu_page

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On Thu, Mar 14, 2024 at 09:52:58PM +0000,
"Edgecombe, Rick P" <rick.p.edgecombe@xxxxxxxxx> wrote:

> On Thu, 2024-03-14 at 11:10 -0700, Isaku Yamahata wrote:
> > > I think the point of putting these in a union is that they only
> > > apply
> > > to shadow paging and so can't be used with TDX. I think you are
> > > putting
> > > more than the sizeof(void *) in there as there are multiple in the
> > > same
> > > category.
> > 
> > I'm not sure if I'm following you.
> > On x86_64, sizeof(unsigned int) = 4, sizeof(atomic_t) = 4,
> > sizeof(void *) = 8.
> > I moved write_flooding_count to have 8 bytes.
> 
> Ah, I see. Yes you are write about it summing to 8. Ok, what do you
> think about putting a comment that these will always be unused with
> TDX?

Ok, will add a comment. Also add some to the commit message.
-- 
Isaku Yamahata <isaku.yamahata@xxxxxxxxx>




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