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a="59854979" X-IronPort-AV: E=Sophos;i="6.16,348,1744095600"; d="scan'208";a="59854979" X-CSE-ConnectionGUID: SWJfxwcQSn6eBUIYAY2hQw== X-CSE-MsgGUID: dA0lcgUdTOy6txxwCsSQRA== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.16,348,1744095600"; d="scan'208";a="162492697" From: Xiaoyao Li To: Paolo Bonzini Cc: Marcelo Tosatti , =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= , Xiaoyao Li , Chenyi Qiang , qemu-devel@nongnu.org Subject: [PATCH 2/2] i386/kvm: Drop KVM_CAP_X86_SMM check in kvm_arch_init() Date: Tue, 29 Jul 2025 14:20:14 +0800 Message-ID: <20250729062014.1669578-3-xiaoyao.li@intel.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20250729062014.1669578-1-xiaoyao.li@intel.com> References: <20250729062014.1669578-1-xiaoyao.li@intel.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=192.198.163.12; envelope-from=xiaoyao.li@intel.com; helo=mgamail.intel.com X-Spam_score_int: -40 X-Spam_score: -4.1 X-Spam_bar: ---- X-Spam_report: (-4.1 / 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, HK_RANDOM_ENVFROM=0.001, HK_RANDOM_FROM=0.299, RCVD_IN_DNSWL_MED=-2.3, RCVD_IN_VALIDITY_CERTIFIED_BLOCKED=0.001, RCVD_IN_VALIDITY_RPBL_BLOCKED=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: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @intel.com) X-ZM-MESSAGEID: 1753770564845116600 Content-Type: text/plain; charset="utf-8" x86_machine_is_smm_enabled() checks the KVM_CAP_X86_SMM for KVM case. No need to check KVM_CAP_X86_SMM specifically. One benefit of checking it specifically is that it can return early when KVM_CAP_X86_SMM is not supported. But considering KVM_CAP_X86_SMM was added in KVM 10 year ago, it's unlikely the case. So just drop the check of KVM_CAP_X86_SMM to simplify the code. Signed-off-by: Xiaoyao Li --- target/i386/kvm/kvm.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/target/i386/kvm/kvm.c b/target/i386/kvm/kvm.c index d145ad49e4e5..92025b8fcae9 100644 --- a/target/i386/kvm/kvm.c +++ b/target/i386/kvm/kvm.c @@ -3311,8 +3311,7 @@ int kvm_arch_init(MachineState *ms, KVMState *s) return ret; } =20 - if (kvm_check_extension(s, KVM_CAP_X86_SMM) && - x86_machine_is_smm_enabled(x86ms)) { + if (x86_machine_is_smm_enabled(x86ms)) { smram_machine_done.notify =3D register_smram_listener; qemu_add_machine_init_done_notifier(&smram_machine_done); } --=20 2.43.0