Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67;
MIME-Version: 1.0
References: <20190828075905.24744-1-vkuznets@redhat.com> <20190828075905.24744-3-vkuznets@redhat.com>
In-Reply-To: <20190828075905.24744-3-vkuznets@redhat.com>
From:   Jim Mattson <jmattson@google.com>
Date:   Wed, 28 Aug 2019 09:24:23 -0700
Message-ID: <CALMp9eTB_yoYGoNQ5DP+XtVbM8fD21aSD+D6onaE7gCxJueqvw@mail.gmail.com>
Subject: Re: [PATCH v2 2/2] KVM: x86: announce KVM_CAP_HYPERV_ENLIGHTENED_VMCS
 support only when it is available
To:     Vitaly Kuznetsov <vkuznets@redhat.com>
Cc:     kvm list <kvm@vger.kernel.org>,
        LKML <linux-kernel@vger.kernel.org>,
        Paolo Bonzini <pbonzini@redhat.com>,
        =?UTF-8?B?UmFkaW0gS3LEjW3DocWZ?= <rkrcmar@redhat.com>,
        Joerg Roedel <joro@8bytes.org>,
        Sean Christopherson <sean.j.christopherson@intel.com>,
        Roman Kagan <rkagan@virtuozzo.com>
Content-Type: text/plain; charset="UTF-8"
Sender: linux-kernel-owner@vger.kernel.org
Precedence: bulk

On Wed, Aug 28, 2019 at 12:59 AM Vitaly Kuznetsov <vkuznets@redhat.com> wrote:
>
> It was discovered that after commit 65efa61dc0d5 ("selftests: kvm: provide
> common function to enable eVMCS") hyperv_cpuid selftest is failing on AMD.
> The reason is that the commit changed _vcpu_ioctl() to vcpu_ioctl() in the
> test and this one can't fail.
>
> Instead of fixing the test is seems to make more sense to not announce
> KVM_CAP_HYPERV_ENLIGHTENED_VMCS support if it is definitely missing
> (on svm and in case kvm_intel.nested=0).
>
> Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Reviewed-by: Jim Mattson <jmattson@google.com>