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Fri, 29 May 2026 14:10:47 +0000 (GMT) Received: from mac.bl1-in.ibm.com (unknown [9.123.11.154]) by smtpav03.fra02v.mail.ibm.com (Postfix) with ESMTP; Fri, 29 May 2026 14:10:47 +0000 (GMT) From: Gautam Menghani To: maddy@linux.ibm.com, mpe@ellerman.id.au, npiggin@gmail.com, chleroy@kernel.org Cc: Gautam Menghani , linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org, atrajeev@linux.ibm.com, harshpb@linux.ibm.com, stable@vger.kernel.org, Sean Christopherson Subject: [PATCH v3] powerpc/pseries/Kconfig: Enable CONFIG_VPA_PMU to be used with KVM Date: Fri, 29 May 2026 19:40:31 +0530 Message-ID: <20260529141032.69559-1-gautam@linux.ibm.com> X-Mailer: git-send-email 2.50.1 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-TM-AS-GCONF: 00 X-Proofpoint-Reinject: loops=2 maxloops=12 X-Authority-Analysis: v=2.4 cv=L4MtheT8 c=1 sm=1 tr=0 ts=6a199e6e cx=c_pps a=bLidbwmWQ0KltjZqbj+ezA==:117 a=bLidbwmWQ0KltjZqbj+ezA==:17 a=NGcC8JguVDcA:10 a=VkNPw1HP01LnGYTKEx00:22 a=RnoormkPH1_aCDwRdu11:22 a=iQ6ETzBq9ecOQQE5vZCe:22 a=VwQbUJbxAAAA:8 a=1XWaLZrsAAAA:8 a=VnNF1IyMAAAA:8 a=dkYHUGA-BDwxkZPz_lEA:9 X-Proofpoint-ORIG-GUID: IMJAOJv4ObE1BMRJRflC2YmpI8lFl0Jw X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwNTI5MDE0MSBTYWx0ZWRfX187YlHsiJbUL 5JokN0h1VxwZTTP0zHyy90T5xWG7jmq/yvy1AUjB6vp8oPllUvjF6XPX5DtF+m53v+W/1fVTOdt Pjqx4paNguhLlnlZW+cdADtv1ZNtsHGRbxBVrdWxtGnOQR2P7rQeqa/u0jmDvCytTbDFWje6YOh fJZ6HrSgQH9OTOh/BeZW830EmIJReitfQrS+QTA+jGkBoOmwKhu0/J4DpK1EdSfvlsyeYhG8hCY 9asjw+8+aoKLX95CIFrj66LHqQpfNovF2oWZYj53RgIYUQxHDffL2rZ9iQLK8dG9sh5ajCOyi72 vAIGTGH1TivlYLlSIVKjl/6DO4I59YYMAeuP4ZozAjrEgGeZx82Zyx42tg95V4BxhQ7TsuV+/PE 0+RLtSsZckU21WSzgdUeYWDmO3ykzzM5nhs+q0U9xUZ6jREaxUGlVfa/ypm+xuy0phI0KksFPdc 1VNYrfot/SoircqqkQg== X-Proofpoint-GUID: lRQ20GSOgXYU8galxn3fTwmrFCsIs-OK 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=2026-05-29_04,2026-05-28_03,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 phishscore=0 lowpriorityscore=0 suspectscore=0 clxscore=1015 malwarescore=0 bulkscore=0 impostorscore=0 adultscore=0 priorityscore=1501 spamscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2605210000 definitions=main-2605290141 Content-Type: text/plain; charset="utf-8" Currently, CONFIG_VPA_PMU is not enabled any of the configs, and consequently cannot be used for KVM guests at all. Mark CONFIG_VPA_PMU as "default m" to ensure it is available when KVM is being used. Fixes: 176cda0619b6c ("powerpc/perf: Add perf interface to expose vpa count= ers") Cc: stable@vger.kernel.org # v6.13+ Suggested-by: Sean Christopherson Signed-off-by: Gautam Menghani --- v2 -> v3: 1. Make CONFIG_VPA_PMU as default m so that it can separately disabled (Sean) v1 -> v2: 1. Rebased on latest master arch/powerpc/platforms/pseries/Kconfig | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/powerpc/platforms/pseries/Kconfig b/arch/powerpc/platform= s/pseries/Kconfig index f7052b131a4c..74910ce3a541 100644 --- a/arch/powerpc/platforms/pseries/Kconfig +++ b/arch/powerpc/platforms/pseries/Kconfig @@ -154,6 +154,7 @@ config HV_PERF_CTRS config VPA_PMU tristate "VPA PMU events" depends on KVM_BOOK3S_64_HV && HV_PERF_CTRS + default m help Enable access to the VPA PMU counters via perf. This enables code that support measurement for KVM on PowerVM(KoP) feature. --=20 2.53.0