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[Xen-devel] [PATCH] arm: introduce a DTS for Xen unprivileged virtual machines



Signed-off-by: Stefano Stabellini <stefano.stabellini@xxxxxxxxxxxxx>
CC: Pawel Moll <pawel.moll@xxxxxxx>
CC: linux-arm-kernel@xxxxxxxxxxxxxxxxxxx
---
 arch/arm/boot/dts/vexpress-xenvm-4.2.dts |  115 ++++++++++++++++++++++++++++++
 arch/arm/mach-vexpress/Makefile.boot     |    3 +-
 2 files changed, 117 insertions(+), 1 deletions(-)
 create mode 100644 arch/arm/boot/dts/vexpress-xenvm-4.2.dts

diff --git a/arch/arm/boot/dts/vexpress-xenvm-4.2.dts 
b/arch/arm/boot/dts/vexpress-xenvm-4.2.dts
new file mode 100644
index 0000000..bfb802c
--- /dev/null
+++ b/arch/arm/boot/dts/vexpress-xenvm-4.2.dts
@@ -0,0 +1,115 @@
+/*
+ * Xen Virtual Machine for unprivileged guests
+ *
+ * Based on ARM Ltd. Versatile Express CoreTile Express (single CPU)
+ * Cortex-A15 MPCore (V2P-CA15)
+ *
+ */
+
+/dts-v1/;
+
+/include/ "skeleton.dtsi"
+
+/ {
+       model = "XENVM-4.2";
+       compatible = "xen,xenvm-4.2", "arm,vexpress";
+       interrupt-parent = <&gic>;
+
+       chosen {
+               bootargs = "earlyprintk console=hvc0 root=/dev/xvda 
init=/sbin/init";
+       };
+
+       cpus {
+               #address-cells = <1>;
+               #size-cells = <0>;
+
+               cpu@0 {
+                       device_type = "cpu";
+                       compatible = "arm,cortex-a15";
+                       reg = <0>;
+               };
+       };
+
+       memory {
+               device_type = "memory";
+               reg = <0x80000000 0x08000000>;
+       };
+
+       gic: interrupt-controller@2c001000 {
+               compatible = "arm,cortex-a9-gic";
+               #interrupt-cells = <3>;
+               #address-cells = <0>;
+               interrupt-controller;
+               reg = <0x2c001000 0x1000>,
+                     <0x2c002000 0x100>;
+       };
+
+       timer {
+               compatible = "arm,armv7-timer";
+               interrupts = <1 13 0xf08>,
+                            <1 14 0xf08>,
+                            <1 11 0xf08>,
+                            <1 10 0xf08>;
+       };
+
+       hypervisor {
+               compatible = "xen,xen-4.2", "xen,xen";
+               reg = <0xb0000000 0x20000>;
+               interrupts = <1 15 0xf08>;
+       };
+
+       motherboard {
+               arm,v2m-memory-map = "rs1";
+               ranges = <0 0 0x08000000 0x04000000>,
+                        <1 0 0x14000000 0x04000000>,
+                        <2 0 0x18000000 0x04000000>,
+                        <3 0 0x1c000000 0x04000000>,
+                        <4 0 0x0c000000 0x04000000>,
+                        <5 0 0x10000000 0x04000000>;
+
+               interrupt-map-mask = <0 0 63>;
+               interrupt-map = <0 0  0 &gic 0  0 4>,
+                               <0 0  1 &gic 0  1 4>,
+                               <0 0  2 &gic 0  2 4>,
+                               <0 0  3 &gic 0  3 4>,
+                               <0 0  4 &gic 0  4 4>,
+                               <0 0  5 &gic 0  5 4>,
+                               <0 0  6 &gic 0  6 4>,
+                               <0 0  7 &gic 0  7 4>,
+                               <0 0  8 &gic 0  8 4>,
+                               <0 0  9 &gic 0  9 4>,
+                               <0 0 10 &gic 0 10 4>,
+                               <0 0 11 &gic 0 11 4>,
+                               <0 0 12 &gic 0 12 4>,
+                               <0 0 13 &gic 0 13 4>,
+                               <0 0 14 &gic 0 14 4>,
+                               <0 0 15 &gic 0 15 4>,
+                               <0 0 16 &gic 0 16 4>,
+                               <0 0 17 &gic 0 17 4>,
+                               <0 0 18 &gic 0 18 4>,
+                               <0 0 19 &gic 0 19 4>,
+                               <0 0 20 &gic 0 20 4>,
+                               <0 0 21 &gic 0 21 4>,
+                               <0 0 22 &gic 0 22 4>,
+                               <0 0 23 &gic 0 23 4>,
+                               <0 0 24 &gic 0 24 4>,
+                               <0 0 25 &gic 0 25 4>,
+                               <0 0 26 &gic 0 26 4>,
+                               <0 0 27 &gic 0 27 4>,
+                               <0 0 28 &gic 0 28 4>,
+                               <0 0 29 &gic 0 29 4>,
+                               <0 0 30 &gic 0 30 4>,
+                               <0 0 31 &gic 0 31 4>,
+                               <0 0 32 &gic 0 32 4>,
+                               <0 0 33 &gic 0 33 4>,
+                               <0 0 34 &gic 0 34 4>,
+                               <0 0 35 &gic 0 35 4>,
+                               <0 0 36 &gic 0 36 4>,
+                               <0 0 37 &gic 0 37 4>,
+                               <0 0 38 &gic 0 38 4>,
+                               <0 0 39 &gic 0 39 4>,
+                               <0 0 40 &gic 0 40 4>,
+                               <0 0 41 &gic 0 41 4>,
+                               <0 0 42 &gic 0 42 4>;
+       };
+};
diff --git a/arch/arm/mach-vexpress/Makefile.boot 
b/arch/arm/mach-vexpress/Makefile.boot
index 318d308..5c633c5 100644
--- a/arch/arm/mach-vexpress/Makefile.boot
+++ b/arch/arm/mach-vexpress/Makefile.boot
@@ -7,4 +7,5 @@ initrd_phys-y   := 0x60800000
 dtb-$(CONFIG_ARCH_VEXPRESS_DT) += vexpress-v2p-ca5s.dtb \
                                   vexpress-v2p-ca9.dtb \
                                   vexpress-v2p-ca15-tc1.dtb \
-                                  vexpress-v2p-ca15_a7.dtb
+                                  vexpress-v2p-ca15_a7.dtb \
+                                  vexpress-xenvm-4.2.dtb
-- 
1.7.2.5


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