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Tsirkin" , Cameron Esfahani , Ani Sinha , Paolo Bonzini , Roman Bolshakov , Shannon Zhao , Phil Dennis-Jordan , Igor Mammedov , qemu-arm@nongnu.org, Mohamed Mediouni Subject: [PATCH v4 15/15] hw/intc: hvf: add migration blocker when using multiple vCPUs with the Apple GIC Date: Mon, 28 Jul 2025 07:57:01 +0200 Message-Id: <20250728055701.38975-16-mohamed@unpredictable.fr> X-Mailer: git-send-email 2.39.5 (Apple Git-154) In-Reply-To: <20250728055701.38975-1-mohamed@unpredictable.fr> References: <20250728055701.38975-1-mohamed@unpredictable.fr> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-Proofpoint-Spam-Details-Enc: AW1haW4tMjUwNzI4MDA0MyBTYWx0ZWRfXza1e44twkMYv 0FkTlbOr46B6dC+zyRCroqHHkJA3kCPmFa6lowguCYpS+MD8dYQSA+jCVJwwPkHYgdCXLP7HTj9 rl4xBRYOoOWA42PHdCrI05t4qQ4n7WkQrLZyOD26RZTV2D38QLfxAu/fPo42AC8Bizm+v2atiaE N/lLLk2UbDQ9m5KSqjl6klbj8Etpmu2M0c0XxkUFUoKlMiyF+3FOWG5LRR0cI14UzGb2Sk6CSIZ dwwe2hSkoLmWu1FmeZB17HKUF7YQVtJ4inOlQQ4kJISn5qcqGb9AP5Ih28z0/B+oGNIz7/Tdo= X-Proofpoint-GUID: hPGQXMacA3npR4211D55ZO7dYyxNLADF X-Proofpoint-ORIG-GUID: hPGQXMacA3npR4211D55ZO7dYyxNLADF X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1099,Hydra:6.1.9,FMLib:17.12.80.40 definitions=2025-07-28_02,2025-07-24_01,2025-03-28_01 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 mlxlogscore=999 suspectscore=0 phishscore=0 clxscore=1030 malwarescore=0 spamscore=0 adultscore=0 mlxscore=0 bulkscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.22.0-2506270000 definitions=main-2507280043 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=57.103.86.63; envelope-from=mohamed@unpredictable.fr; helo=outbound.qs.icloud.com X-Spam_score_int: -37 X-Spam_score: -3.8 X-Spam_bar: --- X-Spam_report: (-3.8 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_LOW=-0.7, RCVD_IN_MSPIKE_H5=-1, RCVD_IN_MSPIKE_WL=-0.01, 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 @unpredictable.fr) X-ZM-MESSAGEID: 1753682409845116600 Content-Type: text/plain; charset="utf-8" Current state known to be broken, still figuring things out... Signed-off-by: Mohamed Mediouni --- hw/intc/arm_gicv3_hvf.c | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/hw/intc/arm_gicv3_hvf.c b/hw/intc/arm_gicv3_hvf.c index 30362540f2..151020edd6 100644 --- a/hw/intc/arm_gicv3_hvf.c +++ b/hw/intc/arm_gicv3_hvf.c @@ -18,6 +18,7 @@ #include "hvf_arm.h" #include "gicv3_internal.h" #include "vgic_common.h" +#include "migration/blocker.h" #include "qom/object.h" #include "target/arm/cpregs.h" #include @@ -703,6 +704,17 @@ static void hvf_gicv3_realize(DeviceState *dev, Error = **errp) error_setg(errp, "vGIC maintenance IRQ mismatch with the hardcoded= one in HVF."); return; } + + /* Temporary: current state known to be incomplete. */ + if (s->num_cpu > 1) { + Error *hvf_mcpu_migration_blocker =3D NULL; + error_setg(&hvf_mcpu_migration_blocker, + "Live migration disabled because multiple CPUs are exposed."); + if (migrate_add_blocker(&hvf_mcpu_migration_blocker, errp)) { + error_free(hvf_mcpu_migration_blocker); + return; + } + } } =20 static void hvf_gicv3_class_init(ObjectClass *klass, const void *data) --=20 2.39.5 (Apple Git-154)