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[v2,2/5] arm64: dts: ls1088a: add missing PMU node

Message ID 20210726071216.22711-3-matt@traverse.com.au
State Superseded
Headers show
Series Add Traverse Technologies Ten64 board DTS | expand

Commit Message

Mathew McBride July 26, 2021, 7:12 a.m. UTC 
The Performance Manager Unit was not described in the DTS
which meant performance event monitoring was not possible.

This was exposed by a change to the PMU handling in KVM
in 5.11-rc3 which now prevents a PMU being exposed to a
guest when the host does not provide one:
"KVM: arm64: Don't access PMCR_EL0 when no PMU is available"

Signed-off-by: Mathew McBride <matt@traverse.com.au>

---
 arch/arm64/boot/dts/freescale/fsl-ls1088a.dtsi | 5 +++++
 1 file changed, 5 insertions(+)

-- 
2.30.1
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Patch

diff --git a/arch/arm64/boot/dts/freescale/fsl-ls1088a.dtsi b/arch/arm64/boot/dts/freescale/fsl-ls1088a.dtsi
index 79ceadc9dc4a..f85e437f80b7 100644
--- a/arch/arm64/boot/dts/freescale/fsl-ls1088a.dtsi
+++ b/arch/arm64/boot/dts/freescale/fsl-ls1088a.dtsi
@@ -189,6 +189,11 @@  timer {
 			     <1 10 IRQ_TYPE_LEVEL_LOW>;/* Hypervisor PPI */
 	};
 
+	pmu {
+		compatible = "arm,cortex-a53-pmu";
+		interrupts = <GIC_PPI 7 IRQ_TYPE_LEVEL_LOW>;
+	};
+
 	psci {
 		compatible = "arm,psci-0.2";
 		method = "smc";