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Commit ae1659ee authored by Konrad Rzeszutek Wilk's avatar Konrad Rzeszutek Wilk
Browse files

Merge branch 'xenarm-for-linus' of... 

Merge branch 'xenarm-for-linus' of git://xenbits.xen.org/people/sstabellini/linux-pvhvm into stable/for-linus-3.7

* 'xenarm-for-linus' of git://xenbits.xen.org/people/sstabellini/linux-pvhvm

:
  arm: introduce a DTS for Xen unprivileged virtual machines
  MAINTAINERS: add myself as Xen ARM maintainer
  xen/arm: compile netback
  xen/arm: compile blkfront and blkback
  xen/arm: implement alloc/free_xenballooned_pages with alloc_pages/kfree
  xen/arm: receive Xen events on ARM
  xen/arm: initialize grant_table on ARM
  xen/arm: get privilege status
  xen/arm: introduce CONFIG_XEN on ARM
  xen: do not compile manage, balloon, pci, acpi, pcpu and cpu_hotplug on ARM
  xen/arm: Introduce xen_ulong_t for unsigned long
  xen/arm: Xen detection and shared_info page mapping
  docs: Xen ARM DT bindings
  xen/arm: empty implementation of grant_table arch specific functions
  xen/arm: sync_bitops
  xen/arm: page.h definitions
  xen/arm: hypercalls
  arm: initial Xen support

Signed-off-by: default avatarKonrad Rzeszutek Wilk <konrad.wilk@oracle.com>
parents c341ca45 bbd6eb29

Documentation/devicetree/bindings/arm/xen.txt

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* Xen hypervisor device tree bindings



Xen ARM virtual platforms shall have a top-level "hypervisor" node with

the following properties:



- compatible:

	compatible = "xen,xen-<version>", "xen,xen";

  where <version> is the version of the Xen ABI of the platform.



- reg: specifies the base physical address and size of a region in

  memory where the grant table should be mapped to, using an

  HYPERVISOR_memory_op hypercall. The memory region is large enough to map

  the whole grant table (it is larger or equal to gnttab_max_grant_frames()).



- interrupts: the interrupt used by Xen to inject event notifications.

  A GIC node is also required.





Example (assuming #address-cells = <2> and #size-cells = <2>):



hypervisor {

	compatible = "xen,xen-4.3", "xen,xen";

	reg = <0 0xb0000000 0 0x20000>;

	interrupts = <1 15 0xf08>;

};

MAINTAINERS

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@@ -7752,6 +7752,13 @@ F: drivers/xen/ 
F:	arch/x86/include/asm/xen/

F:	include/xen/



XEN HYPERVISOR ARM

M:	Stefano Stabellini <stefano.stabellini@eu.citrix.com>

L:	xen-devel@lists.xensource.com (moderated for non-subscribers)

S:	Supported

F:	arch/arm/xen/

F:	arch/arm/include/asm/xen/



XEN NETWORK BACKEND DRIVER

M:	Ian Campbell <ian.campbell@citrix.com>

L:	xen-devel@lists.xensource.com (moderated for non-subscribers)

arch/arm/Kconfig

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@@ -1897,6 +1897,16 @@ config DEPRECATED_PARAM_STRUCT 
	  This was deprecated in 2001 and announced to live on for 5 years.

	  Some old boot loaders still use this way.



config XEN_DOM0

	def_bool y

	depends on XEN



config XEN

	bool "Xen guest support on ARM (EXPERIMENTAL)"

	depends on EXPERIMENTAL && ARM && OF

	help

	  Say Y if you want to run Linux in a Virtual Machine on Xen on ARM.



endmenu



menu "Boot options"

arch/arm/Makefile

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@@ -251,6 +251,7 @@ endif 
core-$(CONFIG_FPE_NWFPE)	+= arch/arm/nwfpe/

core-$(CONFIG_FPE_FASTFPE)	+= $(FASTFPE_OBJ)

core-$(CONFIG_VFP)		+= arch/arm/vfp/

core-$(CONFIG_XEN)		+= arch/arm/xen/



# If we have a machine-specific directory, then include it in the build.

core-y				+= arch/arm/kernel/ arch/arm/mm/ arch/arm/common/

arch/arm/boot/dts/xenvm-4.2.dts

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/*

 * Xen Virtual Machine for unprivileged guests

 *

 * Based on ARM Ltd. Versatile Express CoreTile Express (single CPU)

 * Cortex-A15 MPCore (V2P-CA15)

 *

 */



/dts-v1/;



/ {

	model = "XENVM-4.2";

	compatible = "xen,xenvm-4.2", "xen,xenvm";

	interrupt-parent = <&gic>;

	#address-cells = <2>;

	#size-cells = <2>;



	chosen {

		/* this field is going to be adjusted by the hypervisor */

		bootargs = "console=hvc0 root=/dev/xvda";

	};



	cpus {

		#address-cells = <1>;

		#size-cells = <0>;



		cpu@0 {

			device_type = "cpu";

			compatible = "arm,cortex-a15";

			reg = <0>;

		};

	};



	memory@80000000 {

		device_type = "memory";

		/* this field is going to be adjusted by the hypervisor */

		reg = <0 0x80000000 0 0x08000000>;

	};



	gic: interrupt-controller@2c001000 {

		compatible = "arm,cortex-a15-gic", "arm,cortex-a9-gic";

		#interrupt-cells = <3>;

		#address-cells = <0>;

		interrupt-controller;

		reg = <0 0x2c001000 0 0x1000>,

		      <0 0x2c002000 0 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";

		/* this field is going to be adjusted by the hypervisor */

		reg = <0 0xb0000000 0 0x20000>;

		/* this field is going to be adjusted by the hypervisor */

		interrupts = <1 15 0xf08>;

	};



	motherboard {

		arm,v2m-memory-map = "rs1";

	};

};