diff mbox series

[v3,2/5] arm64: dts: ls1088a: add missing PMU node

Message ID 20210810053828.4240-3-matt@traverse.com.au
State Accepted
Commit 2cfad132b5013c935262a2050f82981ec55de3f8
Headers show
Series Add Traverse Technologies Ten64 board DTS | expand

Commit Message

Mathew McBride Aug. 10, 2021, 5:38 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
diff mbox series

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";