Re: [GIT PULL] Early batch of KVM changes for 4.3 merge window

From	Xiao Guangrong <guangrong.xiao@linux.intel.com>
Newsgroups	linux.kernel
Subject	Re: [GIT PULL] Early batch of KVM changes for 4.3 merge window
Date	2015-09-02 00:50 +0200
Message-ID	<q42xk-3mq-19@gated-at.bofh.it> (permalink)
References	<pXx3c-rb-5@gated-at.bofh.it> <q3HVU-7oG-9@gated-at.bofh.it> <q3Xei-4mR-13@gated-at.bofh.it>
Organization	linux.* mail to news gateway

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On 09/02/2015 01:03 AM, Paolo Bonzini wrote:

>
> diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c
> index fb16a8ea3dee..3c745f3abde8 100644
> --- a/arch/x86/kvm/mmu.c
> +++ b/arch/x86/kvm/mmu.c
> @@ -3309,13 +3309,13 @@ walk_shadow_page_get_mmio_spte(struct kvm_vcpu *vcpu, u64 addr, u64 *sptep)
>
>   	walk_shadow_page_lockless_begin(vcpu);
>
> -	for (shadow_walk_init(&iterator, vcpu, addr), root = iterator.level;
> +	for (shadow_walk_init(&iterator, vcpu, addr),
> +		 leaf = root = iterator.level;
>   	     shadow_walk_okay(&iterator);
>   	     __shadow_walk_next(&iterator, spte)) {
> -		leaf = iterator.level;
>   		spte = mmu_spte_get_lockless(iterator.sptep);
>
> -		sptes[leaf - 1] = spte;
> +		sptes[--leaf] = spte;
>
>   		if (!is_shadow_present_pte(spte))
>   			break;
> @@ -3329,7 +3329,7 @@ walk_shadow_page_get_mmio_spte(struct kvm_vcpu *vcpu, u64 addr, u64 *sptep)
>   	if (reserved) {
>   		pr_err("%s: detect reserved bits on spte, addr 0x%llx, dump hierarchy:\n",
>   		       __func__, addr);
> -		while (root >= leaf) {
> +		while (root > leaf) {
>   			pr_err("------ spte 0x%llx level %d.\n",
>   			       sptes[root - 1], root);
>   			root--;
>
>
> But honestly I haven't even compiled it yet.  Xiao, what do you think?
>

It looks good to me!

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Re: [GIT PULL] Early batch of KVM changes for 4.3 merge window Linus Torvalds <torvalds@linux-foundation.org> - 2015-09-01 02:50 +0200
  Re: [GIT PULL] Early batch of KVM changes for 4.3 merge window Xiao Guangrong <guangrong.xiao@linux.intel.com> - 2015-09-01 08:00 +0200
    Re: [GIT PULL] Early batch of KVM changes for 4.3 merge window Paolo Bonzini <pbonzini@redhat.com> - 2015-09-01 19:10 +0200
  Re: [GIT PULL] Early batch of KVM changes for 4.3 merge window Paolo Bonzini <pbonzini@redhat.com> - 2015-09-01 19:10 +0200
    Re: [GIT PULL] Early batch of KVM changes for 4.3 merge window Xiao Guangrong <guangrong.xiao@linux.intel.com> - 2015-09-02 00:50 +0200

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