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[91.219.240.2]) by smtp.gmail.com with ESMTPSA id q17sm626929wro.36.2020.11.19.08.58.06 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 19 Nov 2020 08:58:06 -0800 (PST) From: Vitaly Kuznetsov To: Claudio Fontana , qemu-devel@nongnu.org Subject: Re: [PATCH 0/5] i386: simplify Hyper-V enlightenments enablement In-Reply-To: <5214378f-29fd-e562-ff99-c7868493c9fe@suse.de> References: <20201119103221.1665171-1-vkuznets@redhat.com> <5214378f-29fd-e562-ff99-c7868493c9fe@suse.de> Date: Thu, 19 Nov 2020 17:58:05 +0100 Message-ID: <87ft55thb6.fsf@vitty.brq.redhat.com> MIME-Version: 1.0 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=vkuznets@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Type: text/plain Received-SPF: pass client-ip=216.205.24.124; envelope-from=vkuznets@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.001, 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=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no 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: Paolo Bonzini , Marcelo Tosatti , Eduardo Habkost Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" Claudio Fontana writes: > Hi Vitaly, I just wanted to raise awareness of > > https://lists.gnu.org/archive/html/qemu-devel/2020-11/msg04597.html > > because if that series work is completed, you would have already the > right hook to put your code in, when it comes to your hyperv-specific > code for the realizefn. Hi Claudio, thanks for letting me know! I'll take a look but at first glance it would just be a code movement. Hope your series gets merged soon, at least before my bug 'i386: KVM: expand Hyper-V features early"' is coming (will be submitting it after 5.11-rc1 kernel upstream) so we minimize the code churn. > > Ciao ciao, > > Claudio > > On 11/19/20 11:32 AM, Vitaly Kuznetsov wrote: >> This series is a part of the previously sent "[PATCH RFC v3 00/23] i386: >> KVM: expand Hyper-V features early": >> https://lists.gnu.org/archive/html/qemu-devel/2020-10/msg02443.html >> >> We're not ready to merge the full patch set yet because the required >> KVM capability is only queued for 5.11. We can, however, extract the >> part providing 'hyperv=on' option to x86 machine types which is valuable >> on its own. Picking up four other patches from the original RFC to >> minimize the code churn in future (x86_cpu_realizefn()). >> >> Changes since RFCv3: >> - Rename 'hyperv_features' to 'default_hyperv_features' in X86MachineClass >> [Eduardo] >> - Move x86_cpu_hyperv_realize() invocation after x86_cpu_expand_features()/ >> x86_cpu_filter_features() as we need to reference cpu_has_vmx(). >> >> Vitaly Kuznetsov (5): >> i386: move hyperv_vendor_id initialization to x86_cpu_realizefn() >> i386: move hyperv_interface_id initialization to x86_cpu_realizefn() >> i386: move hyperv_version_id initialization to x86_cpu_realizefn() >> i386: move hyperv_limits initialization to x86_cpu_realizefn() >> i386: provide simple 'hyperv=on' option to x86 machine types >> >> docs/hyperv.txt | 8 +++++ >> hw/i386/x86.c | 30 +++++++++++++++++++ >> include/hw/i386/x86.h | 7 +++++ >> target/i386/cpu.c | 52 +++++++++++++++++++++++++++++++- >> target/i386/cpu.h | 6 +++- >> target/i386/kvm.c | 70 ++++++++++++++++++++++++++++--------------- >> 6 files changed, 147 insertions(+), 26 deletions(-) >> > -- Vitaly