linux-kernel - Re: [PATCH 1/2] KVM: SVM: Check for nested vmrun intercept before emulating vmrun

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Message-ID: <4C56E1B1.4070805@redhat.com>
Date:	Mon, 02 Aug 2010 18:18:09 +0300
From:	Avi Kivity <avi@...hat.com>
To:	Joerg Roedel <joerg.roedel@....com>
CC:	Marcelo Tosatti <mtosatti@...hat.com>, kvm@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/2] KVM: SVM: Check for nested vmrun intercept before
 emulating vmrun

  On 08/02/2010 05:46 PM, Joerg Roedel wrote:
> This patch lets the nested vmrun fail if the L1 hypervisor
> has not intercepted vmrun. This fixes the "vmrun intercept
> check" unit test.

> +
>   static bool nested_svm_vmrun(struct vcpu_svm *svm)
>   {
>   	struct vmcb *nested_vmcb;
> @@ -2029,6 +2037,17 @@ static bool nested_svm_vmrun(struct vcpu_svm *svm)
>   	if (!nested_vmcb)
>   		return false;
>
> +	if (!nested_vmcb_checks(nested_vmcb)) {
> +		nested_vmcb->control.exit_code    = SVM_EXIT_ERR;
> +		nested_vmcb->control.exit_code_hi = 0;
> +		nested_vmcb->control.exit_info_1  = 0;
> +		nested_vmcb->control.exit_info_2  = 0;
> +
> +		nested_svm_unmap(page);
> +
> +		return false;
> +	}
> +

Don't you have to transfer an injected event to exitintinfo?

-- 
error compiling committee.c: too many arguments to function

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