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([2001:b07:6468:f312:63a7:c72e:ea0e:6045]) by smtp.gmail.com with ESMTPSA id m3sm3750147wrr.32.2021.06.10.06.29.36 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Thu, 10 Jun 2021 06:29:36 -0700 (PDT) Subject: Re: [PATCH 2/9] KVM: x86: Emulate triple fault shutdown if RSM emulation fails To: Vitaly Kuznetsov , Sean Christopherson Cc: Wanpeng Li , Jim Mattson , Joerg Roedel , kvm@vger.kernel.org, linux-kernel@vger.kernel.org, syzbot+fb0b6a7e8713aeb0319c@syzkaller.appspotmail.com References: <20210609185619.992058-1-seanjc@google.com> <20210609185619.992058-3-seanjc@google.com> <87eedayvkn.fsf@vitty.brq.redhat.com> From: Paolo Bonzini Message-ID: <61e9ec9e-d4f5-bea5-942a-21c259278094@redhat.com> Date: Thu, 10 Jun 2021 15:29:35 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.10.1 MIME-Version: 1.0 In-Reply-To: <87eedayvkn.fsf@vitty.brq.redhat.com> Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 10/06/21 10:26, Vitaly Kuznetsov wrote: > So should we actually have X86EMUL_CONTINUE when we queue > KVM_REQ_TRIPLE_FAULT here? Yes... > (Initially, my comment was supposed to be 'why don't you add > TRIPLE_FAULT to smm selftest?' but the above overshadows it) ... and a tenth patch to add a selftest would be nice to have indeed. Paolo