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a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1731431003; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=j5hW+ko2CvgJ136Iuxuu+60x4pzVtirtMo/NDTCH6Ko=; b=NGXlCIHOYw4RZRXOkJcxPWW6/71sGk9OeDCOFv06jqmo/8goUiIdufSbhUWYPpgCOKCYyL rrDXh2ICfTcw6BuNTCsrk5L+S5NB3hi46OW4KH3v5att6l2vV3qkBdU5D9KihJacNXunGW ogSviZ1wdAfUUJWNyZnpebo5f+jyv1s= X-MC-Unique: TX2hogeKP4ShvciahbDvyQ-1 X-Mimecast-MFC-AGG-ID: TX2hogeKP4ShvciahbDvyQ From: Igor Mammedov To: qemu-devel@nongnu.org Cc: salil.mehta@huawei.com, mst@redhat.com, imammedo@redhat.com, jonathan.cameron@huawei.com, linuxarm@huawei.com, anisinha@redhat.com, karl.heubaum@oracle.com, miguel.luis@oracle.com, gustavo.romero@linaro.org Subject: [PATCH 2/7 for-9.2] Revert "hw/acpi: Update ACPI `_STA` method with QOM vCPU ACPI Hotplug states" Date: Tue, 12 Nov 2024 18:02:53 +0100 Message-ID: <20241112170258.2996640-3-imammedo@redhat.com> In-Reply-To: <20241112170258.2996640-1-imammedo@redhat.com> References: <20241112170258.2996640-1-imammedo@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable X-Scanned-By: MIMEDefang 3.0 on 10.30.177.15 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=170.10.133.124; envelope-from=imammedo@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -21 X-Spam_score: -2.2 X-Spam_bar: -- X-Spam_report: (-2.2 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.122, 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, RCVD_IN_VALIDITY_RPBL_BLOCKED=0.001, RCVD_IN_VALIDITY_SAFE_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: 1731431290033116600 This reverts commit bf1ecc8dad6061914730a2a2d57af6b37c3a4f8d which broke cpu hotplug in x86 after migration to older QEMU Fixes: bf1ecc8dad606 (w/acpi: Update ACPI `_STA` method with QOM vCPU ACPI = Hotplug states) Signed-off-by: Igor Mammedov --- include/hw/core/cpu.h | 1 - hw/acpi/cpu.c | 38 ++++---------------------------------- 2 files changed, 4 insertions(+), 35 deletions(-) diff --git a/include/hw/core/cpu.h b/include/hw/core/cpu.h index db8a6fbc6e..e7de77dc6d 100644 --- a/include/hw/core/cpu.h +++ b/include/hw/core/cpu.h @@ -159,7 +159,6 @@ struct CPUClass { void (*query_cpu_fast)(CPUState *cpu, CpuInfoFast *value); int64_t (*get_arch_id)(CPUState *cpu); bool (*cpu_persistent_status)(CPUState *cpu); - bool (*cpu_enabled_status)(CPUState *cpu); void (*set_pc)(CPUState *cpu, vaddr value); vaddr (*get_pc)(CPUState *cpu); int (*gdb_read_register)(CPUState *cpu, GByteArray *buf, int reg); diff --git a/hw/acpi/cpu.c b/hw/acpi/cpu.c index 23443f09a5..9b03b4292e 100644 --- a/hw/acpi/cpu.c +++ b/hw/acpi/cpu.c @@ -50,18 +50,6 @@ void acpi_cpu_ospm_status(CPUHotplugState *cpu_st, ACPIO= STInfoList ***list) } } =20 -static bool check_cpu_enabled_status(DeviceState *dev) -{ - CPUClass *k =3D dev ? CPU_GET_CLASS(dev) : NULL; - CPUState *cpu =3D CPU(dev); - - if (cpu && (!k->cpu_enabled_status || k->cpu_enabled_status(cpu))) { - return true; - } - - return false; -} - static uint64_t cpu_hotplug_rd(void *opaque, hwaddr addr, unsigned size) { uint64_t val =3D 0; @@ -75,11 +63,10 @@ static uint64_t cpu_hotplug_rd(void *opaque, hwaddr add= r, unsigned size) cdev =3D &cpu_st->devs[cpu_st->selector]; switch (addr) { case ACPI_CPU_FLAGS_OFFSET_RW: /* pack and return is_* fields */ - val |=3D check_cpu_enabled_status(DEVICE(cdev->cpu)) ? 1 : 0; + val |=3D cdev->cpu ? 1 : 0; val |=3D cdev->is_inserting ? 2 : 0; val |=3D cdev->is_removing ? 4 : 0; val |=3D cdev->fw_remove ? 16 : 0; - val |=3D cdev->cpu ? 32 : 0; trace_cpuhp_acpi_read_flags(cpu_st->selector, val); break; case ACPI_CPU_CMD_DATA_OFFSET_RW: @@ -362,7 +349,6 @@ const VMStateDescription vmstate_cpu_hotplug =3D { #define CPU_REMOVE_EVENT "CRMV" #define CPU_EJECT_EVENT "CEJ0" #define CPU_FW_EJECT_EVENT "CEJF" -#define CPU_PRESENT "CPRS" =20 void build_cpus_aml(Aml *table, MachineState *machine, CPUHotplugFeatures = opts, build_madt_cpu_fn build_madt_cpu, hwaddr base_addr, @@ -423,9 +409,7 @@ void build_cpus_aml(Aml *table, MachineState *machine, = CPUHotplugFeatures opts, aml_append(field, aml_named_field(CPU_EJECT_EVENT, 1)); /* tell firmware to do device eject, write only */ aml_append(field, aml_named_field(CPU_FW_EJECT_EVENT, 1)); - /* 1 if present, read only */ - aml_append(field, aml_named_field(CPU_PRESENT, 1)); - aml_append(field, aml_reserved_field(2)); + aml_append(field, aml_reserved_field(3)); aml_append(field, aml_named_field(CPU_COMMAND, 8)); aml_append(cpu_ctrl_dev, field); =20 @@ -455,7 +439,6 @@ void build_cpus_aml(Aml *table, MachineState *machine, = CPUHotplugFeatures opts, Aml *ctrl_lock =3D aml_name("%s.%s", cphp_res_path, CPU_LOCK); Aml *cpu_selector =3D aml_name("%s.%s", cphp_res_path, CPU_SELECTO= R); Aml *is_enabled =3D aml_name("%s.%s", cphp_res_path, CPU_ENABLED); - Aml *is_present =3D aml_name("%s.%s", cphp_res_path, CPU_PRESENT); Aml *cpu_cmd =3D aml_name("%s.%s", cphp_res_path, CPU_COMMAND); Aml *cpu_data =3D aml_name("%s.%s", cphp_res_path, CPU_DATA); Aml *ins_evt =3D aml_name("%s.%s", cphp_res_path, CPU_INSERT_EVENT= ); @@ -484,26 +467,13 @@ void build_cpus_aml(Aml *table, MachineState *machine= , CPUHotplugFeatures opts, { Aml *idx =3D aml_arg(0); Aml *sta =3D aml_local(0); - Aml *ifctx2; - Aml *else_ctx; =20 aml_append(method, aml_acquire(ctrl_lock, 0xFFFF)); aml_append(method, aml_store(idx, cpu_selector)); aml_append(method, aml_store(zero, sta)); - ifctx =3D aml_if(aml_equal(is_present, one)); + ifctx =3D aml_if(aml_equal(is_enabled, one)); { - ifctx2 =3D aml_if(aml_equal(is_enabled, one)); - { - /* cpu is present and enabled */ - aml_append(ifctx2, aml_store(aml_int(0xF), sta)); - } - aml_append(ifctx, ifctx2); - else_ctx =3D aml_else(); - { - /* cpu is present but disabled */ - aml_append(else_ctx, aml_store(aml_int(0xD), sta)); - } - aml_append(ifctx, else_ctx); + aml_append(ifctx, aml_store(aml_int(0xF), sta)); } aml_append(method, ifctx); aml_append(method, aml_release(ctrl_lock)); --=20 2.43.0