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device-tree: Move Arm's static-evtchn feature to common
There's nothing Arm specific about this feature. Move it to common as part of a larger activity to commonalize device tree related features. For now, select it only for ARM until others (e.g. RISC-V) verify it works for them too. Signed-off-by: Michal Orzel <michal.orzel@amd.com> Reviewed-by: Stefano Stabellini <sstabellini@kernel.org>
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@@ -253,14 +253,6 @@ config STATIC_SHM
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help
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This option enables statically shared memory on a dom0less system.
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config STATIC_EVTCHN
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bool "Static event channel support on a dom0less system"
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depends on DOM0LESS_BOOT
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default y
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help
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This option enables establishing static event channel communication
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between domains on a dom0less system (domU-domU as well as domU-dom0).
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config PARTIAL_EMULATION
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bool "Enable partial emulation of system/coprocessor registers"
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default y
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@@ -51,7 +51,6 @@ obj-y += setup.o
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obj-y += shutdown.o
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obj-y += smp.o
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obj-y += smpboot.o
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obj-$(CONFIG_STATIC_EVTCHN) += static-evtchn.init.o
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obj-$(CONFIG_STATIC_MEMORY) += static-memory.init.o
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obj-$(CONFIG_STATIC_SHM) += static-shmem.init.o
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obj-y += sysctl.o
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@@ -31,6 +31,7 @@
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#include <xen/version.h>
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#include <xen/vmap.h>
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#include <xen/stack-protector.h>
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#include <xen/static-evtchn.h>
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#include <xen/trace.h>
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#include <xen/libfdt/libfdt-xen.h>
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#include <xen/acpi.h>
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@@ -39,7 +40,6 @@
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#include <asm/alternative.h>
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#include <asm/dom0less-build.h>
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#include <asm/page.h>
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#include <asm/static-evtchn.h>
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#include <asm/current.h>
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#include <asm/setup.h>
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#include <asm/gic.h>
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@@ -162,6 +162,14 @@ config STATIC_MEMORY
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If unsure, say N.
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config STATIC_EVTCHN
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bool "Static event channel support on a dom0less system"
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depends on DOM0LESS_BOOT && ARM
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default y
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help
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This option enables establishing static event channel communication
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between domains on a dom0less system (domU-domU as well as domU-dom0).
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menu "Speculative hardening"
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config INDIRECT_THUNK
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@@ -6,3 +6,4 @@ obj-$(CONFIG_DOM0LESS_BOOT) += dom0less-build.init.o
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obj-$(CONFIG_OVERLAY_DTB) += dt-overlay.o
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obj-y += intc.o
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obj-$(CONFIG_DOMAIN_BUILD_HELPERS) += kernel.o
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obj-$(CONFIG_STATIC_EVTCHN) += static-evtchn.init.o
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@@ -1,8 +1,7 @@
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/* SPDX-License-Identifier: GPL-2.0-only */
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#include <xen/event.h>
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#include <asm/static-evtchn.h>
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#include <xen/static-evtchn.h>
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#define STATIC_EVTCHN_NODE_SIZE_CELLS 2
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@@ -1,7 +1,7 @@
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/* SPDX-License-Identifier: GPL-2.0-only */
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#ifndef __ASM_STATIC_EVTCHN_H_
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#define __ASM_STATIC_EVTCHN_H_
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#ifndef XEN_STATIC_EVTCHN_H
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#define XEN_STATIC_EVTCHN_H
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#ifdef CONFIG_STATIC_EVTCHN
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@@ -13,7 +13,7 @@ static inline void alloc_static_evtchn(void) {};
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#endif /* CONFIG_STATIC_EVTCHN */
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#endif /* __ASM_STATIC_EVTCHN_H_ */
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#endif /* XEN_STATIC_EVTCHN_H */
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/*
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* Local variables:
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