jailhouse: Provide detection for non-x86 systems (63338a38) · Commits · 戴 / test

Implement jailhouse_paravirt() via device tree probing on architectures != x86. Will be used by the PCI core. Signed-off-by:

Juergen Gross <jgross@suse.com> Cc: jailhouse-dev@googlegroups.com Cc: Mark Rutland <mark.rutland@arm.com> Cc: linux-pci@vger.kernel.org Cc: virtualization@lists.linux-foundation.org Cc: Andy Shevchenko <andy.shevchenko@gmail.com> Cc: Rob Herring <robh+dt@kernel.org> Cc: Bjorn Helgaas <bhelgaas@google.com> Link: https://lkml.kernel.org/r/dae9fe0c6e63141c28ca90492fa5712b4c33ffb5.1520408357.git.jan.kiszka@siemens.com

Documentation/devicetree/bindings/jailhouse.txt

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+8 −0

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		Jailhouse non-root cell device tree bindings
		--------------------------------------------

		When running in a non-root Jailhouse cell (partition), the device tree of this
		platform shall have a top-level "hypervisor" node with the following
		properties:

		- compatible = "jailhouse,cell"

+1 −1

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		/* SPDX-License-Identifier: GPL2.0 */

		/*
		* Jailhouse paravirt_ops implementation
		* Jailhouse paravirt detection
		*
		* Copyright (c) Siemens AG, 2015-2017
		*

+15 −2

Original line number	Diff line number	Diff line
		@@ -8,15 +8,28 @@
		*/

		#ifdef CONFIG_X86

		#include <asm/jailhouse_para.h>
		#include <asm/x86_init.h>

		static inline void hypervisor_pin_vcpu(int cpu)
		{
		x86_platform.hyper.pin_vcpu(cpu);
		}
		#else

		#else /* !CONFIG_X86 */

		#include <linux/of.h>

		static inline void hypervisor_pin_vcpu(int cpu)
		{
		}
		#endif

		static inline bool jailhouse_paravirt(void)
		{
		return of_find_compatible_node(NULL, NULL, "jailhouse,cell");
		}

		#endif /* !CONFIG_X86 */

		#endif /* __LINUX_HYPEVISOR_H */