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| author | Mathew McBride <matt@traverse.com.au> | 2021-08-10 05:38:25 +0000 |
|---|---|---|
| committer | Shawn Guo <shawnguo@kernel.org> | 2021-08-14 13:51:25 +0800 |
| commit | 2cfad132b5013c935262a2050f82981ec55de3f8 (patch) | |
| tree | 0fbe1adca11270a02da1be88cfd81b044e4237e7 | |
| parent | e3f9eb037c41fc8139b1dbae4f40064afa76005e (diff) | |
| download | lwn-2cfad132b5013c935262a2050f82981ec55de3f8.tar.gz lwn-2cfad132b5013c935262a2050f82981ec55de3f8.zip | |
arm64: dts: ls1088a: add missing PMU node
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>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
| -rw-r--r-- | arch/arm64/boot/dts/freescale/fsl-ls1088a.dtsi | 5 |
1 files changed, 5 insertions, 0 deletions
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 @@ <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"; |