[PATCH v2] KVM: PPC: Kconfig: Enable CONFIG_VPA_PMU with KVM

Gautam Menghani posted 1 patch 1 week ago
arch/powerpc/kvm/Kconfig | 1 +
1 file changed, 1 insertion(+)
[PATCH v2] KVM: PPC: Kconfig: Enable CONFIG_VPA_PMU with KVM
Posted by Gautam Menghani 1 week ago
Enable CONFIG_VPA_PMU with KVM to enable its usage. Currently, the
vpa-pmu driver cannot be used since it is not enabled in distro configs.

On fedora kernel 6.13.7, the config option is disabled:
$ cat /boot/config-6.19.12-200.fc43.ppc64le  | grep VPA_PMU
 # CONFIG_VPA_PMU is not set

Fixes: 176cda0619b6c ("powerpc/perf: Add perf interface to expose vpa counters")
Cc: stable@vger.kernel.org # v6.13+
Signed-off-by: Gautam Menghani <gautam@linux.ibm.com>
---
v1 -> v2:
1. Rebased on latest master

 arch/powerpc/kvm/Kconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/powerpc/kvm/Kconfig b/arch/powerpc/kvm/Kconfig
index 9a0d1c1aca6c..56e86b46ff13 100644
--- a/arch/powerpc/kvm/Kconfig
+++ b/arch/powerpc/kvm/Kconfig
@@ -82,6 +82,7 @@ config KVM_BOOK3S_64_HV
 	select KVM_BOOK3S_HV_POSSIBLE
 	select KVM_BOOK3S_HV_PMU
 	select CMA
+	select VPA_PMU if HV_PERF_CTRS
 	help
 	  Support running unmodified book3s_64 guest kernels in
 	  virtual machines on POWER7 and newer processors that have
-- 
2.53.0
Re: [PATCH v2] KVM: PPC: Kconfig: Enable CONFIG_VPA_PMU with KVM
Posted by Sean Christopherson 6 days, 4 hours ago
On Mon, May 18, 2026, Gautam Menghani wrote:
> Enable CONFIG_VPA_PMU with KVM to enable its usage. Currently, the
> vpa-pmu driver cannot be used since it is not enabled in distro configs.

That seems like a problem to take up with distros, no?