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Date: Thu, 26 May 2016 09:36:26 -0700
From: Greg KH <gregkh@linuxfoundation.org>
To: Paolo Bonzini <pbonzini@redhat.com>
Cc: stable@vger.kernel.org, rkrcmar@redhat.com
Subject: Re: [PATCH] KVM: x86: mask CPUID(0xD,0x1).EAX against host value
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On Thu, May 26, 2016 at 01:44:06PM +0200, Paolo Bonzini wrote:
> commit 316314cae15fb0e3869b76b468f59a0c83ac3d4e upstream.
> 
> This ensures that the guest doesn't see XSAVE extensions
> (e.g. xgetbv1 or xsavec) that the host lacks.
> 
> Cc: stable@vger.kernel.org
> Reviewed-by: Radim Krčmář <rkrcmar@redhat.com>
> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
> 
> Conflicts:
> 	arch/x86/kvm/cpuid.c

Why is this here?

> 
> [4.5 does have CPUID_D_1_EAX, but earlier kernels don't, so use
>  the numeric value.  This is consistent with other occurrences
>  of cpuid_mask in arch/x86/kvm/cpuid.c - Paolo]

What stable tree(s) do you want this applied to?

thanks,

greg k-h