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authorStefano Stabellini <stefano.stabellini@eu.citrix.com>2015-05-06 14:13:31 +0000
committerDavid Vrabel <david.vrabel@citrix.com>2015-05-28 12:23:11 +0100
commit5882bfef6327093bff63569be19795170ff71e5f (patch)
tree11aa43fab514a95bc53dd063f3f02bee90d7ff17 /arch/arm/include/asm/xen
parent81e863c3a28e69fd60411bde9f779b0f8ad0212a (diff)
arm,arm64/xen: move Xen initialization earlier
Currently, Xen is initialized/discovered in an initcall. This doesn't allow us to support earlyprintk or choosing the preferred console when running on Xen. The current function xen_guest_init is now split in 2 parts: - xen_early_init: Check if there is a Xen node in the device tree and setup domain type - xen_guest_init: Retrieve the information from the device node and initialize Xen (grant table, shared page...) The former is called in setup_arch, while the latter is an initcall. Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com> Signed-off-by: Julien Grall <julien.grall@linaro.org> Acked-by: Ian Campbell <ian.campbell@citrix.com> Acked-by: Will Deacon <will.deacon@arm.com>
Diffstat (limited to 'arch/arm/include/asm/xen')
-rw-r--r--arch/arm/include/asm/xen/hypervisor.h8
1 files changed, 8 insertions, 0 deletions
diff --git a/arch/arm/include/asm/xen/hypervisor.h b/arch/arm/include/asm/xen/hypervisor.h
index 1317ee40f4df..04ff8e7b37df 100644
--- a/arch/arm/include/asm/xen/hypervisor.h
+++ b/arch/arm/include/asm/xen/hypervisor.h
@@ -1,6 +1,8 @@
#ifndef _ASM_ARM_XEN_HYPERVISOR_H
#define _ASM_ARM_XEN_HYPERVISOR_H
+#include <linux/init.h>
+
extern struct shared_info *HYPERVISOR_shared_info;
extern struct start_info *xen_start_info;
@@ -18,4 +20,10 @@ static inline enum paravirt_lazy_mode paravirt_get_lazy_mode(void)
extern struct dma_map_ops *xen_dma_ops;
+#ifdef CONFIG_XEN
+void __init xen_early_init(void);
+#else
+static inline void xen_early_init(void) { return; }
+#endif
+
#endif /* _ASM_ARM_XEN_HYPERVISOR_H */