Commit be1aaf4e authored by Shannon Zhao's avatar Shannon Zhao Committed by David Vrabel
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ARM64: XEN: Add a function to initialize Xen specific UEFI runtime services



When running on Xen hypervisor, runtime services are supported through
hypercall. Add a Xen specific function to initialize runtime services.

Signed-off-by: default avatarShannon Zhao <shannon.zhao@linaro.org>
Reviewed-by: default avatarStefano Stabellini <stefano.stabellini@eu.citrix.com>
Tested-by: default avatarJulien Grall <julien.grall@arm.com>
Acked-by: default avatarCatalin Marinas <catalin.marinas@arm.com>
parent a62ed500
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#ifndef _ASM_XEN_OPS_H
#define _ASM_XEN_OPS_H

void xen_efi_runtime_setup(void);

#endif /* _ASM_XEN_OPS_H */
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obj-y		:= enlighten.o hypercall.o grant-table.o p2m.o mm.o
obj-$(CONFIG_XEN_EFI) += efi.o

arch/arm/xen/efi.c

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/*
 * Copyright (c) 2015, Linaro Limited, Shannon Zhao
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License along
 * with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

#include <linux/efi.h>
#include <xen/xen-ops.h>
#include <asm/xen/xen-ops.h>

/* Set XEN EFI runtime services function pointers. Other fields of struct efi,
 * e.g. efi.systab, will be set like normal EFI.
 */
void __init xen_efi_runtime_setup(void)
{
	efi.get_time                 = xen_efi_get_time;
	efi.set_time                 = xen_efi_set_time;
	efi.get_wakeup_time          = xen_efi_get_wakeup_time;
	efi.set_wakeup_time          = xen_efi_set_wakeup_time;
	efi.get_variable             = xen_efi_get_variable;
	efi.get_next_variable        = xen_efi_get_next_variable;
	efi.set_variable             = xen_efi_set_variable;
	efi.query_variable_info      = xen_efi_query_variable_info;
	efi.update_capsule           = xen_efi_update_capsule;
	efi.query_capsule_caps       = xen_efi_query_capsule_caps;
	efi.get_next_high_mono_count = xen_efi_get_next_high_mono_count;
	efi.reset_system             = NULL; /* Functionality provided by Xen. */
}
EXPORT_SYMBOL_GPL(xen_efi_runtime_setup);
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#ifndef _ASM_XEN_OPS_H
#define _ASM_XEN_OPS_H

void xen_efi_runtime_setup(void);

#endif /* _ASM_XEN_OPS_H */
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xen-arm-y	+= $(addprefix ../../arm/xen/, enlighten.o grant-table.o p2m.o mm.o)
obj-y		:= xen-arm.o hypercall.o
obj-$(CONFIG_XEN_EFI) += $(addprefix ../../arm/xen/, efi.o)
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