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([2001:b07:6468:f312:3181:5745:c591:c33e]) by smtp.gmail.com with ESMTPSA id v7sm24322271wrp.45.2020.07.06.02.25.47 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Mon, 06 Jul 2020 02:25:47 -0700 (PDT) Subject: Re: [PATCH 0/2] Add new features for intel processor To: Cathy Zhang , qemu-devel@nongnu.org References: <1593991036-12183-1-git-send-email-cathy.zhang@intel.com> From: Paolo Bonzini Message-ID: <40aa88ed-fc49-935a-18b6-96861e51b7c1@redhat.com> Date: Mon, 6 Jul 2020 11:25:46 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.6.0 MIME-Version: 1.0 In-Reply-To: <1593991036-12183-1-git-send-email-cathy.zhang@intel.com> Content-Language: en-US Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=pbonzini@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit Received-SPF: pass client-ip=207.211.31.81; envelope-from=pbonzini@redhat.com; helo=us-smtp-delivery-1.mimecast.com X-detected-operating-system: by eggs.gnu.org: First seen = 2020/07/06 01:39:15 X-ACL-Warn: Detected OS = Linux 2.2.x-3.x [generic] [fuzzy] X-Spam_score_int: -30 X-Spam_score: -3.1 X-Spam_bar: --- X-Spam_report: (-3.1 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-1, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H3=-0.01, RCVD_IN_MSPIKE_WL=-0.01, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=_AUTOLEARN X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: ehabkost@redhat.com, rth@twiddle.net Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" On 06/07/20 01:17, Cathy Zhang wrote: > This patchset is to add two new features for intel processors > which support them, like Sapphire Rapids. SERIALIZE is a faster > serializing instruction which does not modify registers, > arithmetic flags or memory, will not cause VM exit. TSX suspend > load tracking instruction aims to give a way to choose which > memory accesses do not need to be tracked in the TSX read set. > > Cathy Zhang (2): > target/i386: Add SERIALIZE cpu feature > target/i386: Enable TSX Suspend Load Address Tracking feature > > target/i386/cpu.c | 4 ++-- > target/i386/cpu.h | 4 ++++ > 2 files changed, 6 insertions(+), 2 deletions(-) > > -- > 1.8.3.1 > Queued, thanks. Paolo