From: Gautam Menghani <gautam@linux.ibm.com>
Date: Mon, 15 Jun 2026 09:11:19 +0000 (+0530)
Subject: powerpc/pseries/Kconfig: Enable CONFIG_VPA_PMU to be used with KVM
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=fe179677b6dcb4b658586038a811f87265e97777;p=thirdparty%2Fkernel%2Flinux.git

powerpc/pseries/Kconfig: Enable CONFIG_VPA_PMU to be used with KVM

Currently, CONFIG_VPA_PMU is not enabled by default, and consequently
cannot be used for KVM guests at all, unless explicitly enabled on
host kernel.

Mark CONFIG_VPA_PMU as "default m" to ensure it is available when KVM is
being used.

Cc: stable@vger.kernel.org # v6.13+
Suggested-by: Sean Christopherson <seanjc@google.com>
Reviewed-by: Amit Machhiwal <amachhiw@linux.ibm.com>
Reviewed-by: Harsh Prateek Bora <harshpb@linux.ibm.com>
Reviewed-by: Ritesh Harjani (IBM) <ritesh.list@gmail.com>
Signed-off-by: Gautam Menghani <gautam@linux.ibm.com>
[Maddy: Changed tag order]
Signed-off-by: Madhavan Srinivasan <maddy@linux.ibm.com>
Link: https://patch.msgid.link/20260615091120.84169-1-gautam@linux.ibm.com
---

diff --git a/arch/powerpc/platforms/pseries/Kconfig b/arch/powerpc/platforms/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.