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[2003:f6:af46:bf00:c0c2:695b:730f:946e]) by smtp.gmail.com with ESMTPSA id h25-20020a1709063c1900b008e8e975e185sm6747988ejg.32.2023.03.22.00.41.56 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Wed, 22 Mar 2023 00:41:57 -0700 (PDT) Message-ID: <87dd030b-77e1-edc0-846e-da654bbfc152@grsecurity.net> Date: Wed, 22 Mar 2023 08:41:55 +0100 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:102.0) Gecko/20100101 Thunderbird/102.8.0 Subject: Re: [PATCH v4 0/6] KVM: MMU: performance tweaks for heavy CR0.WP users Content-Language: en-US, de-DE To: kvm@vger.kernel.org Cc: linux-kernel@vger.kernel.org, Sean Christopherson , Paolo Bonzini References: <20230322013731.102955-1-minipli@grsecurity.net> From: Mathias Krause In-Reply-To: <20230322013731.102955-1-minipli@grsecurity.net> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Spam-Status: No, score=0.1 required=5.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,NICE_REPLY_A, RCVD_IN_DNSWL_NONE,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED autolearn=no autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 22.03.23 02:37, Mathias Krause wrote: > Bonus rant^Wbug report: > [VMs #GP'ing on WRMSR(IA32_PRED_CMD,...)] I see that this is already a well known bug, fully analyzed and taken care off: https://lore.kernel.org/kvm/20230322011440.2195485-1-seanjc@google.com/ Thanks, Mathias