On Sun, Nov 13, 2011, Orit Wasserman wrote about "Re: [PATCH 02/10] nEPT: MMU
context for nested EPT":
> Maybe this patch can help, this is roughly what Avi wants (I hope) done very
> quickly.
> I'm sorry I don't have setup to run nested VMX at the moment so i can't test
> it.
Hi Orit, thanks for the code - I'm now working on incorporating
something based on this into my patch. However, I do have a question:
> +static int nested_ept_init_mmu_context(struct kvm_vcpu *vcpu)
> +{
> + int r = kvm_init_shadow_mmu(vcpu, &vcpu->arch.mmu);
> +
> + vcpu->arch.nested_mmu.gva_to_gpa = EPT_gva_to_gpa_nested;
> +
> + return r;
> +}
I didn't see you actually call this function anywhere - how is it
supposed to work?
The way I understand the current code, kvm_mmu_reset_context() calls
init_kvm_mmu() which (in our case) calls init_kvm_nested_mmu().
I think the above gva_to_gpa setting should be there - right?
It seems we need a fifth case in that function.
But at that point in mmu.c, how will I be able to check if this is the
nested EPT case? Do you have any suggestion?
Thanks,
Nadav.
--
Nadav Har'El | Wednesday, Nov 23 2011,
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