linux-kernel - [PATCH v4 8/8] ARM: mach-virt: Select PMUv3 driver by default

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Message-ID: <20230317195027.3746949-9-zalbassam@google.com>
Date:   Fri, 17 Mar 2023 15:50:27 -0400
From:   Zaid Al-Bassam <zalbassam@...gle.com>
To:     Jesus Sanchez-Palencia <jesussanp@...gle.com>,
        Russell King <linux@...linux.org.uk>,
        Catalin Marinas <catalin.marinas@....com>,
        Will Deacon <will@...nel.org>,
        Peter Zijlstra <peterz@...radead.org>,
        Ingo Molnar <mingo@...hat.com>,
        Arnaldo Carvalho de Melo <acme@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
        Jiri Olsa <jolsa@...nel.org>,
        Namhyung Kim <namhyung@...nel.org>,
        Marc Zyngier <maz@...nel.org>,
        James Morse <james.morse@....com>,
        Suzuki K Poulose <suzuki.poulose@....com>,
        Oliver Upton <oliver.upton@...ux.dev>,
        Zenghui Yu <yuzenghui@...wei.com>,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        linux-perf-users@...r.kernel.org, kvmarm@...ts.linux.dev,
        kvmarm@...ts.cs.columbia.edu, f.fainelli@...il.com
Cc:     Marc Zyngier <marc.zyngier@....com>,
        Zaid Al-Bassam <zalbassam@...gle.com>
Subject: [PATCH v4 8/8] ARM: mach-virt: Select PMUv3 driver by default

From: Marc Zyngier <marc.zyngier@....com>

Since 32bit guests are not unlikely to run on an ARMv8 host,
let's select the PMUv3 driver, which allows the PMU to be used
on such systems.

Signed-off-by: Marc Zyngier <marc.zyngier@....com>
Signed-off-by: Zaid Al-Bassam <zalbassam@...gle.com>
Signed-off-by: Marc Zyngier <maz@...nel.org>
---
 arch/arm/Kconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index bc12857e81f9..6f0a2576d17f 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -401,6 +401,7 @@ config ARCH_VIRT
 	select ARM_GIC_V3
 	select ARM_GIC_V3_ITS if PCI
 	select ARM_PSCI
+	select ARM_PMUV3 if PERF_EVENTS
 	select HAVE_ARM_ARCH_TIMER
 
 config ARCH_AIROHA
-- 
2.40.0.rc2.332.ga46443480c-goog