Re: [PATCH v2 01/15] KVM: MMU: fix the count of spte number

From: Gleb Natapov
Date: Sun Sep 08 2013 - 08:19:46 EST


On Thu, Sep 05, 2013 at 06:29:04PM +0800, Xiao Guangrong wrote:
> If the desc is the last one and it is full, its sptes is not counted
>
Hmm, if desc is not full but it is not the last one all sptes after the
desc are not counted too.

> Signed-off-by: Xiao Guangrong <xiaoguangrong@xxxxxxxxxxxxxxxxxx>
> ---
> arch/x86/kvm/mmu.c | 1 +
> 1 file changed, 1 insertion(+)
>
> diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c
> index 6e2d2c8..7714fd8 100644
> --- a/arch/x86/kvm/mmu.c
> +++ b/arch/x86/kvm/mmu.c
> @@ -948,6 +948,7 @@ static int pte_list_add(struct kvm_vcpu *vcpu, u64 *spte,
> count += PTE_LIST_EXT;
> }
> if (desc->sptes[PTE_LIST_EXT-1]) {
> + count += PTE_LIST_EXT;
> desc->more = mmu_alloc_pte_list_desc(vcpu);
> desc = desc->more;
> }
> --
> 1.8.1.4

--
Gleb.
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