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([2001:b07:6468:f312:c8dd:75d4:99ab:290a]) by smtp.googlemail.com with ESMTPSA id fn5sm7191652ejc.179.2022.02.23.01.47.48 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Wed, 23 Feb 2022 01:47:48 -0800 (PST) Message-ID: Date: Wed, 23 Feb 2022 10:47:47 +0100 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:91.0) Gecko/20100101 Thunderbird/91.5.0 Subject: Re: [PATCH 2/2] vmxcap: Add 5-level EPT bit Content-Language: en-US To: Vitaly Kuznetsov , qemu-devel@nongnu.org References: <20220221145316.576138-1-vkuznets@redhat.com> <20220221145316.576138-2-vkuznets@redhat.com> From: Paolo Bonzini In-Reply-To: <20220221145316.576138-2-vkuznets@redhat.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-Host-Lookup-Failed: Reverse DNS lookup failed for 2a00:1450:4864:20::634 (failed) Received-SPF: pass client-ip=2a00:1450:4864:20::634; envelope-from=paolo.bonzini@gmail.com; helo=mail-ej1-x634.google.com X-Spam_score_int: 0 X-Spam_score: -0.1 X-Spam_bar: / X-Spam_report: (-0.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_EF=-0.1, FREEMAIL_FORGED_FROMDOMAIN=0.249, FREEMAIL_FROM=0.001, HEADER_FROM_DIFFERENT_DOMAINS=0.249, NICE_REPLY_A=-0.001, PDS_HP_HELO_NORDNS=0.659, RCVD_IN_DNSWL_NONE=-0.0001, RDNS_NONE=0.793, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=no autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Marcelo Tosatti Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" On 2/21/22 15:53, Vitaly Kuznetsov wrote: > 5-level EPT is present in Icelake Server CPUs and is supported by QEMU > ('vmx-page-walk-5'). > > Signed-off-by: Vitaly Kuznetsov > --- > scripts/kvm/vmxcap | 1 + > 1 file changed, 1 insertion(+) > > diff --git a/scripts/kvm/vmxcap b/scripts/kvm/vmxcap > index 6fe66d5f5753..f140040104bf 100755 > --- a/scripts/kvm/vmxcap > +++ b/scripts/kvm/vmxcap > @@ -249,6 +249,7 @@ controls = [ > bits = { > 0: 'Execute-only EPT translations', > 6: 'Page-walk length 4', > + 7: 'Page-walk length 5', > 8: 'Paging-structure memory type UC', > 14: 'Paging-structure memory type WB', > 16: '2MB EPT pages', Queued both, thanks. Paolo