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a="12222100" X-IronPort-AV: E=Sophos;i="6.08,175,1712646000"; d="scan'208";a="12222100" X-CSE-ConnectionGUID: oQ9wEy1SRO6iM5NDUC4qoA== X-CSE-MsgGUID: UAKUAeTuSK6HfBecV+NT2A== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.08,175,1712646000"; d="scan'208";a="32746638" From: Zide Chen To: qemu-devel@nongnu.org Cc: pbonzini@redhat.com, mst@redhat.com, thuth@redhat.com, cfontana@suse.de, xiaoyao.li@intel.com, Zide Chen Subject: [PATCH 3/3] target/i386: Move host_cpu_enable_cpu_pm into kvm_cpu_realizefn() Date: Mon, 20 May 2024 10:47:33 -0700 Message-Id: <20240520174733.32979-4-zide.chen@intel.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240520174733.32979-1-zide.chen@intel.com> References: <20240520174733.32979-1-zide.chen@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=192.198.163.19; envelope-from=zide.chen@intel.com; helo=mgamail.intel.com X-Spam_score_int: -43 X-Spam_score: -4.4 X-Spam_bar: ---- X-Spam_report: (-4.4 / 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_MED=-2.3, RCVD_IN_MSPIKE_H2=-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: 1716227344337100007 Content-Type: text/plain; charset="utf-8" It seems not a good idea to expand features in host_cpu_realizefn, which is for host CPU only. Additionally, cpu-pm option is KVM specific, and it's cleaner to put it in kvm_cpu_realizefn(), together with the WAITPKG code. Fixes: f5cc5a5c1686 ("i386: split cpu accelerators from cpu.c, using AccelC= PUClass") Signed-off-by: Zide Chen --- target/i386/host-cpu.c | 12 ------------ target/i386/kvm/kvm-cpu.c | 11 +++++++++-- 2 files changed, 9 insertions(+), 14 deletions(-) diff --git a/target/i386/host-cpu.c b/target/i386/host-cpu.c index 280e427c017c..8b8bf5afeccf 100644 --- a/target/i386/host-cpu.c +++ b/target/i386/host-cpu.c @@ -42,15 +42,6 @@ static uint32_t host_cpu_phys_bits(void) return host_phys_bits; } =20 -static void host_cpu_enable_cpu_pm(X86CPU *cpu) -{ - CPUX86State *env =3D &cpu->env; - - host_cpuid(5, 0, &cpu->mwait.eax, &cpu->mwait.ebx, - &cpu->mwait.ecx, &cpu->mwait.edx); - env->features[FEAT_1_ECX] |=3D CPUID_EXT_MONITOR; -} - static uint32_t host_cpu_adjust_phys_bits(X86CPU *cpu) { uint32_t host_phys_bits =3D host_cpu_phys_bits(); @@ -83,9 +74,6 @@ bool host_cpu_realizefn(CPUState *cs, Error **errp) X86CPU *cpu =3D X86_CPU(cs); CPUX86State *env =3D &cpu->env; =20 - if (cpu->max_features && enable_cpu_pm) { - host_cpu_enable_cpu_pm(cpu); - } if (env->features[FEAT_8000_0001_EDX] & CPUID_EXT2_LM) { uint32_t phys_bits =3D host_cpu_adjust_phys_bits(cpu); =20 diff --git a/target/i386/kvm/kvm-cpu.c b/target/i386/kvm/kvm-cpu.c index 3adcedf0dbc3..197c892da89a 100644 --- a/target/i386/kvm/kvm-cpu.c +++ b/target/i386/kvm/kvm-cpu.c @@ -64,9 +64,16 @@ static bool kvm_cpu_realizefn(CPUState *cs, Error **errp) * cpu_common_realizefn() (via xcc->parent_realize) */ if (cpu->max_features) { - if (enable_cpu_pm && kvm_has_waitpkg()) { - env->features[FEAT_7_0_ECX] |=3D CPUID_7_0_ECX_WAITPKG; + if (enable_cpu_pm) { + if (kvm_has_waitpkg()) { + env->features[FEAT_7_0_ECX] |=3D CPUID_7_0_ECX_WAITPKG; + } + + host_cpuid(5, 0, &cpu->mwait.eax, &cpu->mwait.ebx, + &cpu->mwait.ecx, &cpu->mwait.edx); + env->features[FEAT_1_ECX] |=3D CPUID_EXT_MONITOR; } + if (cpu->ucode_rev =3D=3D 0) { cpu->ucode_rev =3D kvm_arch_get_supported_msr_feature(kvm_state, --=20 2.34.1