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Subject: Re: [Part2 PATCH v5 31/31] KVM: X86: Restart the guest when insn_len
 is zero and SEV is enabled
To: Brijesh Singh <brijesh.singh@amd.com>, x86@kernel.org,
        kvm@vger.kernel.org, linux-kernel@vger.kernel.org
Cc: Thomas Gleixner <tglx@linutronix.de>, Ingo Molnar <mingo@redhat.com>,
        "H. Peter Anvin" <hpa@zytor.com>,
        =?UTF-8?B?UmFkaW0gS3LEjW3DocWZ?= <rkrcmar@redhat.com>,
        Joerg Roedel <joro@8bytes.org>, Borislav Petkov <bp@suse.de>,
        Tom Lendacky <thomas.lendacky@amd.com>
References: <20171004131704.13266-1-brijesh.singh@amd.com>
 <20171004131704.13266-2-brijesh.singh@amd.com>
 <e09869bc-ab5b-dd53-1d72-e103675418d1@redhat.com>
 <639d43f6-c403-4fff-7152-9814d9c5b9e6@amd.com>
From: Paolo Bonzini <pbonzini@redhat.com>
Message-ID: <447f9182-c576-17e0-4bf7-9112e5e7c995@redhat.com>
Date: Wed, 18 Oct 2017 15:00:53 +0200
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On 18/10/2017 14:19, Brijesh Singh wrote:
>> Is it needed to test mem_enc_enabled?  Could it instead test for the
>> availability of decode assists?
>
> We can use X86_FEATURE_DECODEASSIST but since mmu.c is common file hence
> I was not sure if its safe for the VMX.  Is it okay to use decode assist
> feature bit in mm.c ?

See the follow up email. :)

Paolo