From: Marc Zyngier maz@kernel.org
[ Upstream commit 776a3c04da9fa144241476f4a0d263899d6cad26 ]
GIC400 has full support for virtualization, and yet the tegra186 DT doesn't expose the GICH/GICV regions (despite exposing the maintenance interrupt that only makes sense for virtualization).
Add the missing regions, based on the hunch that the HW doesn't use the CPU build-in interfaces, but instead the external ones provided by the GIC. KVM's virtual GIC now works with this change.
Signed-off-by: Marc Zyngier maz@kernel.org Signed-off-by: Thierry Reding treding@nvidia.com Signed-off-by: Sasha Levin sashal@kernel.org --- arch/arm64/boot/dts/nvidia/tegra186.dtsi | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/arch/arm64/boot/dts/nvidia/tegra186.dtsi b/arch/arm64/boot/dts/nvidia/tegra186.dtsi index 9abf0cb1dd67f..f72c97fe4afc8 100644 --- a/arch/arm64/boot/dts/nvidia/tegra186.dtsi +++ b/arch/arm64/boot/dts/nvidia/tegra186.dtsi @@ -569,7 +569,9 @@ gic: interrupt-controller@3881000 { #interrupt-cells = <3>; interrupt-controller; reg = <0x0 0x03881000 0x0 0x1000>, - <0x0 0x03882000 0x0 0x2000>; + <0x0 0x03882000 0x0 0x2000>, + <0x0 0x03884000 0x0 0x2000>, + <0x0 0x03886000 0x0 0x2000>; interrupts = <GIC_PPI 9 (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_HIGH)>; interrupt-parent = <&gic>;