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Tue, 23 Apr 2024 21:07:25 GMT Received: from smtpav04.dal12v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 776AF5805E; Tue, 23 Apr 2024 21:07:23 +0000 (GMT) Received: from smtpav04.dal12v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id E9F6B5805A; Tue, 23 Apr 2024 21:07:22 +0000 (GMT) Received: from li-d664314c-3171-11b2-a85c-fa8047ef35bd.pok.ibm.com (unknown [9.12.68.85]) by smtpav04.dal12v.mail.ibm.com (Postfix) with ESMTP; Tue, 23 Apr 2024 21:07:22 +0000 (GMT) From: Collin Walling To: qemu-s390x@nongnu.org, qemu-devel@nongnu.org Cc: thuth@redhat.com, david@redhat.com, wangyanan55@huawei.com, philmd@linaro.org, marcel.apfelbaum@gmail.com, eduardo@habkost.net, armbru@redhat.com, Collin Walling Subject: [PATCH v2 1/3] cpu-models: add "disable-deprecated-feats" option to cpu model expansion Date: Tue, 23 Apr 2024 17:06:53 -0400 Message-ID: <20240423210655.66656-2-walling@linux.ibm.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20240423210655.66656-1-walling@linux.ibm.com> References: <20240423210655.66656-1-walling@linux.ibm.com> MIME-Version: 1.0 X-TM-AS-GCONF: 00 X-Proofpoint-GUID: BD2B6rlEIiQt0jCNe_ac3knP1BKRxJzP X-Proofpoint-ORIG-GUID: J5qpejMGOqip3wjAggPTRUATcFaS3xXX X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1011,Hydra:6.0.650,FMLib:17.11.176.26 definitions=2024-04-23_16,2024-04-23_02,2023-05-22_02 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 clxscore=1015 mlxlogscore=999 adultscore=0 priorityscore=1501 impostorscore=0 spamscore=0 bulkscore=0 lowpriorityscore=0 mlxscore=0 malwarescore=0 phishscore=0 suspectscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2404010000 definitions=main-2404230053 Received-SPF: pass client-ip=148.163.156.1; envelope-from=walling@linux.ibm.com; helo=mx0a-001b2d01.pphosted.com X-Spam_score_int: -19 X-Spam_score: -2.0 X-Spam_bar: -- X-Spam_report: (-2.0 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_MSPIKE_H4=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: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org This optional parameter for query-cpu-model-expansion enables CPU model features flagged as deprecated to appear in the resulting list of properties. This commit does not add support beyond adding a new argument to the query. All queries with this option present will result in an error claiming this option is not supported. Signed-off-by: Collin Walling --- qapi/machine-target.json | 7 ++++++- target/arm/arm-qmp-cmds.c | 7 +++++++ target/i386/cpu-sysemu.c | 7 +++++++ target/s390x/cpu_models_sysemu.c | 7 +++++++ 4 files changed, 27 insertions(+), 1 deletion(-) diff --git a/qapi/machine-target.json b/qapi/machine-target.json index 29e695aa06..b9da284d2d 100644 --- a/qapi/machine-target.json +++ b/qapi/machine-target.json @@ -285,6 +285,10 @@ # # @type: expansion type, specifying how to expand the CPU model # +# @disable-deprecated-feats: include CPU model features that are +# flagged as deprecated. If supported, these features will appear +# in the properties list paired with false. +# # Returns: a CpuModelExpansionInfo describing the expanded CPU model # # Errors: @@ -298,7 +302,8 @@ ## { 'command': 'query-cpu-model-expansion', 'data': { 'type': 'CpuModelExpansionType', - 'model': 'CpuModelInfo' }, + 'model': 'CpuModelInfo', + '*disable-deprecated-feats': 'bool' }, 'returns': 'CpuModelExpansionInfo', 'if': { 'any': [ 'TARGET_S390X', 'TARGET_I386', diff --git a/target/arm/arm-qmp-cmds.c b/target/arm/arm-qmp-cmds.c index 3cc8cc738b..1010d654e3 100644 --- a/target/arm/arm-qmp-cmds.c +++ b/target/arm/arm-qmp-cmds.c @@ -100,6 +100,8 @@ static const char *cpu_model_advertised_features[] = { CpuModelExpansionInfo *qmp_query_cpu_model_expansion(CpuModelExpansionType type, CpuModelInfo *model, + bool has_disable_deprecated_feats, + bool disable_deprecated_feats, Error **errp) { CpuModelExpansionInfo *expansion_info; @@ -110,6 +112,11 @@ CpuModelExpansionInfo *qmp_query_cpu_model_expansion(CpuModelExpansionType type, const char *name; int i; + if (has_disable_deprecated_feats) { + error_setg(&err, "Unsupported option 'disable-deprecated-feats'"); + return NULL; + } + if (type != CPU_MODEL_EXPANSION_TYPE_FULL) { error_setg(errp, "The requested expansion type is not supported"); return NULL; diff --git a/target/i386/cpu-sysemu.c b/target/i386/cpu-sysemu.c index 3f9093d285..c15786fb66 100644 --- a/target/i386/cpu-sysemu.c +++ b/target/i386/cpu-sysemu.c @@ -196,6 +196,8 @@ out: CpuModelExpansionInfo * qmp_query_cpu_model_expansion(CpuModelExpansionType type, CpuModelInfo *model, + bool has_disable_deprecated_feats, + bool disable_deprecated_feats, Error **errp) { X86CPU *xc = NULL; @@ -204,6 +206,11 @@ qmp_query_cpu_model_expansion(CpuModelExpansionType type, QDict *props = NULL; const char *base_name; + if (has_disable_deprecated_feats) { + error_setg(&err, "Unsupported option 'disable-deprecated-feats'"); + goto out; + } + xc = x86_cpu_from_model(model->name, model->props, "model.props", &err); if (err) { goto out; diff --git a/target/s390x/cpu_models_sysemu.c b/target/s390x/cpu_models_sysemu.c index 2d99218069..ef9fa80efd 100644 --- a/target/s390x/cpu_models_sysemu.c +++ b/target/s390x/cpu_models_sysemu.c @@ -210,6 +210,8 @@ static void cpu_info_from_model(CpuModelInfo *info, const S390CPUModel *model, CpuModelExpansionInfo *qmp_query_cpu_model_expansion(CpuModelExpansionType type, CpuModelInfo *model, + bool has_disable_deprecated_feats, + bool disable_deprecated_feats, Error **errp) { Error *err = NULL; @@ -217,6 +219,11 @@ CpuModelExpansionInfo *qmp_query_cpu_model_expansion(CpuModelExpansionType type, S390CPUModel s390_model; bool delta_changes = false; + if (has_disable_deprecated_feats) { + error_setg(&err, "Unsupported option 'disable-deprecated-feats'"); + return NULL; + } + /* convert it to our internal representation */ cpu_model_from_info(&s390_model, model, "model", &err); if (err) { From patchwork Tue Apr 23 21:06:54 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Collin Walling X-Patchwork-Id: 1926787 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@legolas.ozlabs.org Authentication-Results: legolas.ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=ibm.com header.i=@ibm.com header.a=rsa-sha256 header.s=pp1 header.b=eOLx2Lcu; dkim-atps=neutral Authentication-Results: legolas.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=nongnu.org (client-ip=209.51.188.17; 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Tue, 23 Apr 2024 21:07:23 +0000 (GMT) From: Collin Walling To: qemu-s390x@nongnu.org, qemu-devel@nongnu.org Cc: thuth@redhat.com, david@redhat.com, wangyanan55@huawei.com, philmd@linaro.org, marcel.apfelbaum@gmail.com, eduardo@habkost.net, armbru@redhat.com, Collin Walling Subject: [PATCH v2 2/3] target/s390x: add support for "disable-deprecated-feats" expansion option Date: Tue, 23 Apr 2024 17:06:54 -0400 Message-ID: <20240423210655.66656-3-walling@linux.ibm.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20240423210655.66656-1-walling@linux.ibm.com> References: <20240423210655.66656-1-walling@linux.ibm.com> MIME-Version: 1.0 X-TM-AS-GCONF: 00 X-Proofpoint-GUID: yT9jFdOeRDUlINjwNVURPqL9PEcnQD4d X-Proofpoint-ORIG-GUID: 5qKomWfABW_BWAQ3KAM93gOTC4TO60qQ X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1011,Hydra:6.0.650,FMLib:17.11.176.26 definitions=2024-04-23_16,2024-04-23_02,2023-05-22_02 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 clxscore=1015 mlxlogscore=999 adultscore=0 priorityscore=1501 impostorscore=0 spamscore=0 bulkscore=0 lowpriorityscore=0 mlxscore=0 malwarescore=0 phishscore=0 suspectscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2404010000 definitions=main-2404230053 Received-SPF: pass client-ip=148.163.156.1; envelope-from=walling@linux.ibm.com; helo=mx0a-001b2d01.pphosted.com X-Spam_score_int: -19 X-Spam_score: -2.0 X-Spam_bar: -- X-Spam_report: (-2.0 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_MSPIKE_H4=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: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Retain a list of deprecated features disjoint from any particular CPU model. When a query-cpu-model-expansion is provided with the "disable-deprecated-feats" option set, the resulting properties list will include all deprecated features paired with false. Example: { ... "bpb": false, "csske": false, ...} It is recommended that s390 guests operate with these features explicitly disabled to ensure compatability with future hardware. Signed-off-by: Collin Walling --- target/s390x/cpu_features.c | 14 ++++++++++++++ target/s390x/cpu_features.h | 1 + target/s390x/cpu_models_sysemu.c | 20 ++++++++++++-------- 3 files changed, 27 insertions(+), 8 deletions(-) diff --git a/target/s390x/cpu_features.c b/target/s390x/cpu_features.c index d28eb65845..efafc9711c 100644 --- a/target/s390x/cpu_features.c +++ b/target/s390x/cpu_features.c @@ -212,6 +212,20 @@ void s390_feat_bitmap_to_ascii(const S390FeatBitmap features, void *opaque, }; } +void s390_get_deprecated_features(S390FeatBitmap features) +{ + static const int feats[] = { + /* CSSKE is deprecated on newer generations */ + S390_FEAT_CONDITIONAL_SSKE, + S390_FEAT_BPB, + }; + int i; + + for (i = 0; i < ARRAY_SIZE(feats); i++) { + set_bit(feats[i], features); + } +} + #define FEAT_GROUP_INIT(_name, _group, _desc) \ { \ .name = _name, \ diff --git a/target/s390x/cpu_features.h b/target/s390x/cpu_features.h index a9bd68a2e1..661a8cd6db 100644 --- a/target/s390x/cpu_features.h +++ b/target/s390x/cpu_features.h @@ -69,6 +69,7 @@ void s390_add_from_feat_block(S390FeatBitmap features, S390FeatType type, uint8_t *data); void s390_feat_bitmap_to_ascii(const S390FeatBitmap features, void *opaque, void (*fn)(const char *name, void *opaque)); +void s390_get_deprecated_features(S390FeatBitmap features); /* Definition of a CPU feature group */ typedef struct { diff --git a/target/s390x/cpu_models_sysemu.c b/target/s390x/cpu_models_sysemu.c index ef9fa80efd..b002819188 100644 --- a/target/s390x/cpu_models_sysemu.c +++ b/target/s390x/cpu_models_sysemu.c @@ -171,7 +171,8 @@ static void qdict_add_enabled_feat(const char *name, void *opaque) /* convert S390CPUDef into a static CpuModelInfo */ static void cpu_info_from_model(CpuModelInfo *info, const S390CPUModel *model, - bool delta_changes) + bool delta_changes, + bool disable_deprecated_feats) { QDict *qdict = qdict_new(); S390FeatBitmap bitmap; @@ -201,6 +202,13 @@ static void cpu_info_from_model(CpuModelInfo *info, const S390CPUModel *model, s390_feat_bitmap_to_ascii(bitmap, qdict, qdict_add_disabled_feat); } + /* features flagged as deprecated */ + if (disable_deprecated_feats) { + bitmap_zero(bitmap, S390_FEAT_MAX); + s390_get_deprecated_features(bitmap); + s390_feat_bitmap_to_ascii(bitmap, qdict, qdict_add_disabled_feat); + } + if (!qdict_size(qdict)) { qobject_unref(qdict); } else { @@ -219,11 +227,6 @@ CpuModelExpansionInfo *qmp_query_cpu_model_expansion(CpuModelExpansionType type, S390CPUModel s390_model; bool delta_changes = false; - if (has_disable_deprecated_feats) { - error_setg(&err, "Unsupported option 'disable-deprecated-feats'"); - return NULL; - } - /* convert it to our internal representation */ cpu_model_from_info(&s390_model, model, "model", &err); if (err) { @@ -241,7 +244,8 @@ CpuModelExpansionInfo *qmp_query_cpu_model_expansion(CpuModelExpansionType type, /* convert it back to a static representation */ expansion_info = g_new0(CpuModelExpansionInfo, 1); expansion_info->model = g_malloc0(sizeof(*expansion_info->model)); - cpu_info_from_model(expansion_info->model, &s390_model, delta_changes); + cpu_info_from_model(expansion_info->model, &s390_model, + delta_changes, disable_deprecated_feats); return expansion_info; } @@ -390,7 +394,7 @@ CpuModelBaselineInfo *qmp_query_cpu_model_baseline(CpuModelInfo *infoa, baseline_info = g_new0(CpuModelBaselineInfo, 1); baseline_info->model = g_malloc0(sizeof(*baseline_info->model)); - cpu_info_from_model(baseline_info->model, &model, true); + cpu_info_from_model(baseline_info->model, &model, true, false); return baseline_info; } From patchwork Tue Apr 23 21:06:55 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Collin Walling X-Patchwork-Id: 1926788 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@legolas.ozlabs.org Authentication-Results: legolas.ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=ibm.com header.i=@ibm.com header.a=rsa-sha256 header.s=pp1 header.b=Ij8IkHTU; dkim-atps=neutral Authentication-Results: legolas.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=nongnu.org (client-ip=209.51.188.17; helo=lists.gnu.org; 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Tue, 23 Apr 2024 21:07:24 +0000 (GMT) From: Collin Walling To: qemu-s390x@nongnu.org, qemu-devel@nongnu.org Cc: thuth@redhat.com, david@redhat.com, wangyanan55@huawei.com, philmd@linaro.org, marcel.apfelbaum@gmail.com, eduardo@habkost.net, armbru@redhat.com, Collin Walling Subject: [PATCH v2 3/3] target/s390x: flag te and cte as deprecated Date: Tue, 23 Apr 2024 17:06:55 -0400 Message-ID: <20240423210655.66656-4-walling@linux.ibm.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20240423210655.66656-1-walling@linux.ibm.com> References: <20240423210655.66656-1-walling@linux.ibm.com> MIME-Version: 1.0 X-TM-AS-GCONF: 00 X-Proofpoint-ORIG-GUID: 1-bbFjju50myNWpNh_99LeIO6HXroxnk X-Proofpoint-GUID: zsixM85rdrpJh99rq505898iGbfe6pR6 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1011,Hydra:6.0.650,FMLib:17.11.176.26 definitions=2024-04-23_16,2024-04-23_02,2023-05-22_02 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 mlxlogscore=980 suspectscore=0 malwarescore=0 bulkscore=0 priorityscore=1501 lowpriorityscore=0 mlxscore=0 spamscore=0 clxscore=1015 adultscore=0 phishscore=0 impostorscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2404010000 definitions=main-2404230053 Received-SPF: pass client-ip=148.163.156.1; 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Signed-off-by: Collin Walling --- target/s390x/cpu_features.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/target/s390x/cpu_features.c b/target/s390x/cpu_features.c index efafc9711c..cb4e2b8920 100644 --- a/target/s390x/cpu_features.c +++ b/target/s390x/cpu_features.c @@ -218,6 +218,9 @@ void s390_get_deprecated_features(S390FeatBitmap features) /* CSSKE is deprecated on newer generations */ S390_FEAT_CONDITIONAL_SSKE, S390_FEAT_BPB, + /* Deprecated on z16 */ + S390_FEAT_CONSTRAINT_TRANSACTIONAL_EXE, + S390_FEAT_TRANSACTIONAL_EXE }; int i;