linux-kernel - Re: [PATCH 6/9] KVM: MMU: introduce the framework to check reserved bits on sptes

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Message-ID: <55C0AC9C.6070606@redhat.com>
Date:	Tue, 4 Aug 2015 14:14:20 +0200
From:	Paolo Bonzini <pbonzini@...hat.com>
To:	Xiao Guangrong <guangrong.xiao@...ux.intel.com>
Cc:	gleb@...nel.org, mtosatti@...hat.com, kvm@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 6/9] KVM: MMU: introduce the framework to check reserved
 bits on sptes



On 04/08/2015 12:59, Xiao Guangrong wrote:
> +/*
> + * the page table on host is the shadow page table for the page
> + * table in guest or amd nested guest, its mmu features completely
> + * follow the features in guest.
> + */
> +void
> +reset_shadow_rsvds_bits_mask(struct kvm_vcpu *vcpu, struct kvm_mmu *context)
> +{
> +	__reset_rsvds_bits_mask(vcpu, &context->shadow_rsvd_check,
> +				boot_cpu_data.x86_phys_bits,
> +				context->shadow_root_level, context->nx,

This should be cpu_has_nx, I think.

> +				guest_cpuid_has_gbpages(vcpu),

This should be cpu_has_gbpages.

> is_pse(vcpu));

This should be cpu_has_pse.

Paolo

> +}
> +EXPORT_SYMBOL_GPL(reset_shadow_rsvds_bits_mask);
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