linux-kernel - Re: [PATCH 17/18] KVM: SVM: Report Nested Paging support to userspace

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Date:	Thu, 4 Mar 2010 00:37:42 +0100
From:	Alexander Graf <agraf@...e.de>
To:	Joerg Roedel <joerg.roedel@....com>
Cc:	Avi Kivity <avi@...hat.com>, Marcelo Tosatti <mtosatti@...hat.com>,
	kvm@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 17/18] KVM: SVM: Report Nested Paging support to userspace


On 03.03.2010, at 20:12, Joerg Roedel wrote:

> This patch implements the reporting of the nested paging
> feature support to userspace.
> 
> Signed-off-by: Joerg Roedel <joerg.roedel@....com>
> ---
> arch/x86/kvm/svm.c |   10 ++++++++++
> 1 files changed, 10 insertions(+), 0 deletions(-)
> 
> diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c
> index fe1398e..ce71023 100644
> --- a/arch/x86/kvm/svm.c
> +++ b/arch/x86/kvm/svm.c
> @@ -3289,6 +3289,16 @@ static void svm_cpuid_update(struct kvm_vcpu *vcpu)
> 
> static void svm_set_supported_cpuid(u32 func, struct kvm_cpuid_entry2 *entry)
> {
> +	switch (func) {
> +	case 0x8000000A:
> +		if (!npt_enabled)
> +			break;

if (!nested)
  break;

Alex--
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