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Fri, 30 May 2025 00:13:38 -0700 (PDT) X-Google-Smtp-Source: AGHT+IGPBgM0CZPRSGDRT9KDmcuHIIl6zmlTOavLAL/DvRI8Wzp43R8yGxdjJFomWlNypFVerQ8gZg== X-Received: by 2002:a17:907:7203:b0:ad5:8594:652e with SMTP id a640c23a62f3a-adb36ba4b75mr91472866b.35.1748589217250; Fri, 30 May 2025 00:13:37 -0700 (PDT) From: Paolo Bonzini To: qemu-devel@nongnu.org Cc: Xiaoyao Li , Gerd Hoffmann , =?UTF-8?q?Daniel=20P=2E=20Berrang=C3=A9?= , Zhao Liu Subject: [PULL 19/77] kvm: Introduce kvm_arch_pre_create_vcpu() Date: Fri, 30 May 2025 09:11:49 +0200 Message-ID: <20250530071250.2050910-20-pbonzini@redhat.com> X-Mailer: git-send-email 2.49.0 In-Reply-To: <20250530071250.2050910-1-pbonzini@redhat.com> References: <20250530071250.2050910-1-pbonzini@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" 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=170.10.129.124; envelope-from=pbonzini@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -49 X-Spam_score: -5.0 X-Spam_bar: ----- X-Spam_report: (-5.0 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-2.902, 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_H5=0.001, RCVD_IN_MSPIKE_WL=0.001, 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 @redhat.com) X-ZM-MESSAGEID: 1748589990842116600 From: Xiaoyao Li Introduce kvm_arch_pre_create_vcpu(), to perform arch-dependent work prior to create any vcpu. This is for i386 TDX because it needs call TDX_INIT_VM before creating any vcpu. The specific implementation for i386 will be added in the future patch. Signed-off-by: Xiaoyao Li Acked-by: Gerd Hoffmann Reviewed-by: Daniel P. Berrang=C3=A9 Reviewed-by: Zhao Liu Link: https://lore.kernel.org/r/20250508150002.689633-8-xiaoyao.li@intel.com Signed-off-by: Paolo Bonzini --- include/system/kvm.h | 1 + accel/kvm/kvm-all.c | 5 +++++ target/arm/kvm.c | 5 +++++ target/i386/kvm/kvm.c | 5 +++++ target/loongarch/kvm/kvm.c | 4 ++++ target/mips/kvm.c | 5 +++++ target/ppc/kvm.c | 5 +++++ target/riscv/kvm/kvm-cpu.c | 5 +++++ target/s390x/kvm/kvm.c | 5 +++++ 9 files changed, 40 insertions(+) diff --git a/include/system/kvm.h b/include/system/kvm.h index b690dda1370..62ec131d4d8 100644 --- a/include/system/kvm.h +++ b/include/system/kvm.h @@ -376,6 +376,7 @@ int kvm_arch_get_default_type(MachineState *ms); =20 int kvm_arch_init(MachineState *ms, KVMState *s); =20 +int kvm_arch_pre_create_vcpu(CPUState *cpu, Error **errp); int kvm_arch_init_vcpu(CPUState *cpu); int kvm_arch_destroy_vcpu(CPUState *cpu); =20 diff --git a/accel/kvm/kvm-all.c b/accel/kvm/kvm-all.c index 278a50690c9..42d239cf8f2 100644 --- a/accel/kvm/kvm-all.c +++ b/accel/kvm/kvm-all.c @@ -545,6 +545,11 @@ int kvm_init_vcpu(CPUState *cpu, Error **errp) =20 trace_kvm_init_vcpu(cpu->cpu_index, kvm_arch_vcpu_id(cpu)); =20 + ret =3D kvm_arch_pre_create_vcpu(cpu, errp); + if (ret < 0) { + goto err; + } + ret =3D kvm_create_vcpu(cpu); if (ret < 0) { error_setg_errno(errp, -ret, diff --git a/target/arm/kvm.c b/target/arm/kvm.c index a2791aa866f..74fda8b8090 100644 --- a/target/arm/kvm.c +++ b/target/arm/kvm.c @@ -1846,6 +1846,11 @@ static int kvm_arm_sve_set_vls(ARMCPU *cpu) =20 #define ARM_CPU_ID_MPIDR 3, 0, 0, 0, 5 =20 +int kvm_arch_pre_create_vcpu(CPUState *cpu, Error **errp) +{ + return 0; +} + int kvm_arch_init_vcpu(CPUState *cs) { int ret; diff --git a/target/i386/kvm/kvm.c b/target/i386/kvm/kvm.c index 6d88495d476..446f0600d4e 100644 --- a/target/i386/kvm/kvm.c +++ b/target/i386/kvm/kvm.c @@ -2051,6 +2051,11 @@ full: abort(); } =20 +int kvm_arch_pre_create_vcpu(CPUState *cpu, Error **errp) +{ + return 0; +} + int kvm_arch_init_vcpu(CPUState *cs) { struct { diff --git a/target/loongarch/kvm/kvm.c b/target/loongarch/kvm/kvm.c index 1bda570482c..c66bdd5302a 100644 --- a/target/loongarch/kvm/kvm.c +++ b/target/loongarch/kvm/kvm.c @@ -1071,7 +1071,11 @@ static int kvm_cpu_check_pv_features(CPUState *cs, E= rror **errp) env->pv_features |=3D BIT(KVM_FEATURE_VIRT_EXTIOI); } } + return 0; +} =20 +int kvm_arch_pre_create_vcpu(CPUState *cpu, Error **errp) +{ return 0; } =20 diff --git a/target/mips/kvm.c b/target/mips/kvm.c index d67b7c1a8ec..ec53acb51a1 100644 --- a/target/mips/kvm.c +++ b/target/mips/kvm.c @@ -61,6 +61,11 @@ int kvm_arch_irqchip_create(KVMState *s) return 0; } =20 +int kvm_arch_pre_create_vcpu(CPUState *cpu, Error **errp) +{ + return 0; +} + int kvm_arch_init_vcpu(CPUState *cs) { CPUMIPSState *env =3D cpu_env(cs); diff --git a/target/ppc/kvm.c b/target/ppc/kvm.c index 8a957c3c7d4..015658049e6 100644 --- a/target/ppc/kvm.c +++ b/target/ppc/kvm.c @@ -479,6 +479,11 @@ static void kvmppc_hw_debug_points_init(CPUPPCState *c= env) } } =20 +int kvm_arch_pre_create_vcpu(CPUState *cpu, Error **errp) +{ + return 0; +} + int kvm_arch_init_vcpu(CPUState *cs) { PowerPCCPU *cpu =3D POWERPC_CPU(cs); diff --git a/target/riscv/kvm/kvm-cpu.c b/target/riscv/kvm/kvm-cpu.c index efb41fac53e..e1a04be20fe 100644 --- a/target/riscv/kvm/kvm-cpu.c +++ b/target/riscv/kvm/kvm-cpu.c @@ -1472,6 +1472,11 @@ static int kvm_vcpu_enable_sbi_dbcn(RISCVCPU *cpu, C= PUState *cs) return kvm_set_one_reg(cs, kvm_sbi_dbcn.kvm_reg_id, ®); } =20 +int kvm_arch_pre_create_vcpu(CPUState *cpu, Error **errp) +{ + return 0; +} + int kvm_arch_init_vcpu(CPUState *cs) { int ret =3D 0; diff --git a/target/s390x/kvm/kvm.c b/target/s390x/kvm/kvm.c index 6cd2ebc5f1f..67d9a1977c0 100644 --- a/target/s390x/kvm/kvm.c +++ b/target/s390x/kvm/kvm.c @@ -398,6 +398,11 @@ unsigned long kvm_arch_vcpu_id(CPUState *cpu) return cpu->cpu_index; } =20 +int kvm_arch_pre_create_vcpu(CPUState *cpu, Error **errp) +{ + return 0; +} + int kvm_arch_init_vcpu(CPUState *cs) { unsigned int max_cpus =3D MACHINE(qdev_get_machine())->smp.max_cpus; --=20 2.49.0