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Wed, 1 Jul 2026 14:20:16 +0000 (GMT) From: Shrikanth Hegde To: linux-kernel@vger.kernel.org, mingo@kernel.org, peterz@infradead.org, juri.lelli@redhat.com, vincent.guittot@linaro.org, yury.norov@gmail.com, kprateek.nayak@amd.com, iii@linux.ibm.com, corbet@lwn.net Cc: sshegde@linux.ibm.com, tglx@kernel.org, gregkh@linuxfoundation.org, pbonzini@redhat.com, seanjc@google.com, vschneid@redhat.com, huschle@linux.ibm.com, rostedt@goodmis.org, dietmar.eggemann@arm.com, maddy@linux.ibm.com, srikar@linux.ibm.com, hdanton@sina.com, chleroy@kernel.org, vineeth@bitbyteword.org, frederic@kernel.org, arighi@nvidia.com, pauld@redhat.com, christian.loehle@arm.com, tj@kernel.org, tommaso.cucinotta@gmail.com, maz@kernel.org, rafael@kernel.org, rdunlap@infradead.org, kernellwp@gmail.com, linux-doc@vger.kernel.org Subject: [PATCH v6 14/23] virt/steal_monitor: Define steal_monitor structure Date: Wed, 1 Jul 2026 19:46:45 +0530 Message-ID: <20260701141654.500125-15-sshegde@linux.ibm.com> X-Mailer: git-send-email 2.54.0 In-Reply-To: <20260701141654.500125-1-sshegde@linux.ibm.com> References: <20260701141654.500125-1-sshegde@linux.ibm.com> Precedence: bulk X-Mailing-List: linux-doc@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-TM-AS-GCONF: 00 X-Proofpoint-Reinject: loops=2 maxloops=12 X-Proofpoint-GUID: EO6olhsThHO5zuM90K8CcRhZu0StzIVb X-Proofpoint-Spam-Info: AW1haW4tMjYwNzAxMDE1MCBTYWx0ZWRfX0JMyPNAsSrvy SvN3is42OdL6Iv45ax0xrMLMC3w8BwmKLKqjNc4ql3qkuTAtKNNSDqotDzfPDHgOoNprcsfF4TR RRpZT7XIM5Jaql6aN3LIsA0jBny7i30= X-Authority-Analysis: v=2.4 cv=edsNubEH c=1 sm=1 tr=0 ts=6a452234 cx=c_pps a=bLidbwmWQ0KltjZqbj+ezA==:117 a=bLidbwmWQ0KltjZqbj+ezA==:17 a=RAioF0-LDSMA:10 a=VkNPw1HP01LnGYTKEx00:22 a=RnoormkPH1_aCDwRdu11:22 a=iQ6ETzBq9ecOQQE5vZCe:22 a=VnNF1IyMAAAA:8 a=cXayYlmpSY-lSeVCXxMA:9 X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwNzAxMDE1MCBTYWx0ZWRfX1924AMEd7tn1 wypQ/yZ3A898UzjpDh54lxdPX6Ootb1qJzHkx18hdGolBFmD2jwKWu9wDVRyrT/GiyXt91RgcZu 7Kvs+h62D8vzAzrxidInXF0Fcm/eaGdovO55FeO95jWmi6sb5AZcfluwQprmzi6wolJ1a62KjjO Olju6o4+zO9LVLG3jyTTjngLD0qfuw/xpuOJ6Fbx5eyS1wR1PCh8CAn1ac0Cd2VGIdFLLvrdxZO vLpZ6/X6q6EITtfiA7OjkmNw5aByG4Oy9UJVtE19t6qZ82nKdUSEfCErBdKrkZQ1hqElzlW0TJ9 WXeXTL0CGnf/46IUehPTiYHWAkqKpmmPJWmpSeQeRDA9DIKiYImFpiv0maxlKIG4Y+QtEqL4fAI RGCnjVR4LUBnfcTHgSU0NXctbqsY98Azov4RSiqW2ah/CjjYEwCaBc7QNi2huCDZV65sk04Mr4/ 6oqtHe/duh4TpAjuLoQ== X-Proofpoint-ORIG-GUID: 12z4Opeh8sC4Yq_ls3RAdhpqLlw3LcuL X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1143,Hydra:6.1.125,FMLib:17.12.100.49 definitions=2026-07-01_03,2026-06-26_01,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 malwarescore=0 adultscore=0 impostorscore=0 bulkscore=0 spamscore=0 suspectscore=0 clxscore=1015 lowpriorityscore=0 phishscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2606150000 definitions=main-2607010150 Main structure of steal monitor. It has - work: deferred periodic work function - prev_steal, prev_time - To calculate the delta in periodic work. - interval_ms, high_threshold, low_threshold - debug knobs of steal_monitor. sm_core_ctx - instance used by the core code. Signed-off-by: Shrikanth Hegde --- drivers/virt/steal_monitor/sm_core.c | 2 ++ drivers/virt/steal_monitor/sm_core.h | 12 ++++++++++++ 2 files changed, 14 insertions(+) diff --git a/drivers/virt/steal_monitor/sm_core.c b/drivers/virt/steal_monitor/sm_core.c index 222c23286043..92d5a0e3d8bf 100644 --- a/drivers/virt/steal_monitor/sm_core.c +++ b/drivers/virt/steal_monitor/sm_core.c @@ -14,6 +14,8 @@ #include "sm_core.h" +struct steal_monitor sm_core_ctx; + static int __init steal_monitor_init(void) { pr_info("steal_monitor is enabled\n"); diff --git a/drivers/virt/steal_monitor/sm_core.h b/drivers/virt/steal_monitor/sm_core.h index 40913aeccf16..e5c3ea0a63c9 100644 --- a/drivers/virt/steal_monitor/sm_core.h +++ b/drivers/virt/steal_monitor/sm_core.h @@ -9,4 +9,16 @@ #include #include +struct steal_monitor { + struct delayed_work work; + u64 prev_steal; + int prev_direction; + unsigned int interval_ms; + unsigned int high_threshold; + unsigned int low_threshold; + ktime_t prev_time; +}; + +extern struct steal_monitor sm_core_ctx; + #endif /* __VIRT_STEAL_CORE_H */ -- 2.47.3