linux-kernel - Re: [PATCH] KVM: x86: Fix load damaged SSEx MXCSR register

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Message-ID: <c74fe092-bbe2-d6d8-5366-2404c091fd72@redhat.com>
Date:   Thu, 11 May 2017 09:44:52 +0200
From:   Paolo Bonzini <pbonzini@...hat.com>
To:     Wanpeng Li <kernellwp@...il.com>
Cc:     "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        kvm <kvm@...r.kernel.org>,
        Radim Krčmář <rkrcmar@...hat.com>,
        Wanpeng Li <wanpeng.li@...mail.com>
Subject: Re: [PATCH] KVM: x86: Fix load damaged SSEx MXCSR register



On 11/05/2017 02:56, Wanpeng Li wrote:
>> Hmm, thinking more about it, maybe use mxcsr_feature_mask instead of
>> digging into vcpu->arch.guest_fpu?  If you send v2, please remember to
> ERROR: "mxcsr_feature_mask" [arch/x86/kvm/kvm.ko] undefined. So we
> should dig into vcpu->arch.guest_fpu.

Yes, you need to export it.

Paolo