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xen/efi: have a common runtime setup function 

Today the EFI runtime functions are setup in architecture specific
code (x86 and arm), with the functions themselves living in drivers/xen
as they are not architecture dependent.

As the setup is exactly the same for arm and x86 move the setup to
drivers/xen, too. This at once removes the need to make the single
functions global visible.

Signed-off-by: Juergen Gross <jgross@suse.com>
Reviewed-by: Jan Beulich <jbeulich@suse.com>
[boris: "Dropped EXPORT_SYMBOL_GPL(xen_efi_runtime_setup)"]
Signed-off-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
This commit is contained in:
Juergen Gross 2019-10-01 10:25:34 +02:00 committed by Boris Ostrovsky
parent ec066de1a5
commit 0951570685
9 changed files with 49 additions and 122 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
arch/arm/include/asm/xen/xen-ops.h
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@ -1,6 +0,0 @@
#ifndef _ASM_XEN_OPS_H
#define _ASM_XEN_OPS_H
void xen_efi_runtime_setup(void);
#endif /* _ASM_XEN_OPS_H */

1
arch/arm/xen/Makefile
View File

@ -1,3 +1,2 @@
# SPDX-License-Identifier: GPL-2.0-only
obj-y := enlighten.o hypercall.o grant-table.o p2m.o mm.o
obj-$(CONFIG_XEN_EFI) += efi.o

30
arch/arm/xen/efi.c
View File

@ -1,30 +0,0 @@
// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Copyright (c) 2015, Linaro Limited, Shannon Zhao
*/
#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.set_variable_nonblocking = xen_efi_set_variable;
efi.query_variable_info = xen_efi_query_variable_info;
efi.query_variable_info_nonblocking = 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 = xen_efi_reset_system;
}
EXPORT_SYMBOL_GPL(xen_efi_runtime_setup);

1
arch/arm/xen/enlighten.c
View File

@ -15,7 +15,6 @@
#include <xen/xen-ops.h>
#include <asm/xen/hypervisor.h>
#include <asm/xen/hypercall.h>
#include <asm/xen/xen-ops.h>
#include <asm/system_misc.h>
#include <asm/efi.h>
#include <linux/interrupt.h>

7
arch/arm64/include/asm/xen/xen-ops.h
View File

@ -1,7 +0,0 @@
/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_XEN_OPS_H
#define _ASM_XEN_OPS_H
void xen_efi_runtime_setup(void);
#endif /* _ASM_XEN_OPS_H */

1
arch/arm64/xen/Makefile
View File

@ -1,4 +1,3 @@
# SPDX-License-Identifier: GPL-2.0-only
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)

16
arch/x86/xen/efi.c
View File

@ -57,21 +57,7 @@ static efi_system_table_t __init *xen_efi_probe(void)
return NULL;
/* Here we know that Xen runs on EFI platform. */
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.set_variable_nonblocking = xen_efi_set_variable;
efi.query_variable_info = xen_efi_query_variable_info;
efi.query_variable_info_nonblocking = 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 = xen_efi_reset_system;
xen_efi_runtime_setup();
efi_systab_xen.tables = info->cfg.addr;
efi_systab_xen.nr_tables = info->cfg.nent;

84
drivers/xen/efi.c
View File

@ -40,7 +40,7 @@
#define efi_data(op) (op.u.efi_runtime_call)
efi_status_t xen_efi_get_time(efi_time_t *tm, efi_time_cap_t *tc)
static efi_status_t xen_efi_get_time(efi_time_t *tm, efi_time_cap_t *tc)
{
struct xen_platform_op op = INIT_EFI_OP(get_time);
@ -61,9 +61,8 @@ efi_status_t xen_efi_get_time(efi_time_t *tm, efi_time_cap_t *tc)
return efi_data(op).status;
}
EXPORT_SYMBOL_GPL(xen_efi_get_time);
efi_status_t xen_efi_set_time(efi_time_t *tm)
static efi_status_t xen_efi_set_time(efi_time_t *tm)
{
struct xen_platform_op op = INIT_EFI_OP(set_time);
@ -75,10 +74,10 @@ efi_status_t xen_efi_set_time(efi_time_t *tm)
return efi_data(op).status;
}
EXPORT_SYMBOL_GPL(xen_efi_set_time);
efi_status_t xen_efi_get_wakeup_time(efi_bool_t *enabled, efi_bool_t *pending,
efi_time_t *tm)
static efi_status_t xen_efi_get_wakeup_time(efi_bool_t *enabled,
efi_bool_t *pending,
efi_time_t *tm)
{
struct xen_platform_op op = INIT_EFI_OP(get_wakeup_time);
@ -98,9 +97,8 @@ efi_status_t xen_efi_get_wakeup_time(efi_bool_t *enabled, efi_bool_t *pending,
return efi_data(op).status;
}
EXPORT_SYMBOL_GPL(xen_efi_get_wakeup_time);
efi_status_t xen_efi_set_wakeup_time(efi_bool_t enabled, efi_time_t *tm)
static efi_status_t xen_efi_set_wakeup_time(efi_bool_t enabled, efi_time_t *tm)
{
struct xen_platform_op op = INIT_EFI_OP(set_wakeup_time);
@ -117,11 +115,10 @@ efi_status_t xen_efi_set_wakeup_time(efi_bool_t enabled, efi_time_t *tm)
return efi_data(op).status;
}
EXPORT_SYMBOL_GPL(xen_efi_set_wakeup_time);
efi_status_t xen_efi_get_variable(efi_char16_t *name, efi_guid_t *vendor,
u32 *attr, unsigned long *data_size,
void *data)
static efi_status_t xen_efi_get_variable(efi_char16_t *name, efi_guid_t *vendor,
u32 *attr, unsigned long *data_size,
void *data)
{
struct xen_platform_op op = INIT_EFI_OP(get_variable);
@ -141,11 +138,10 @@ efi_status_t xen_efi_get_variable(efi_char16_t *name, efi_guid_t *vendor,
return efi_data(op).status;
}
EXPORT_SYMBOL_GPL(xen_efi_get_variable);
efi_status_t xen_efi_get_next_variable(unsigned long *name_size,
efi_char16_t *name,
efi_guid_t *vendor)
static efi_status_t xen_efi_get_next_variable(unsigned long *name_size,
efi_char16_t *name,
efi_guid_t *vendor)
{
struct xen_platform_op op = INIT_EFI_OP(get_next_variable_name);
@ -165,11 +161,10 @@ efi_status_t xen_efi_get_next_variable(unsigned long *name_size,
return efi_data(op).status;
}
EXPORT_SYMBOL_GPL(xen_efi_get_next_variable);
efi_status_t xen_efi_set_variable(efi_char16_t *name, efi_guid_t *vendor,
u32 attr, unsigned long data_size,
void *data)
static efi_status_t xen_efi_set_variable(efi_char16_t *name, efi_guid_t *vendor,
u32 attr, unsigned long data_size,
void *data)
{
struct xen_platform_op op = INIT_EFI_OP(set_variable);
@ -186,11 +181,10 @@ efi_status_t xen_efi_set_variable(efi_char16_t *name, efi_guid_t *vendor,
return efi_data(op).status;
}
EXPORT_SYMBOL_GPL(xen_efi_set_variable);
efi_status_t xen_efi_query_variable_info(u32 attr, u64 *storage_space,
u64 *remaining_space,
u64 *max_variable_size)
static efi_status_t xen_efi_query_variable_info(u32 attr, u64 *storage_space,
u64 *remaining_space,
u64 *max_variable_size)
{
struct xen_platform_op op = INIT_EFI_OP(query_variable_info);
@ -208,9 +202,8 @@ efi_status_t xen_efi_query_variable_info(u32 attr, u64 *storage_space,
return efi_data(op).status;
}
EXPORT_SYMBOL_GPL(xen_efi_query_variable_info);
efi_status_t xen_efi_get_next_high_mono_count(u32 *count)
static efi_status_t xen_efi_get_next_high_mono_count(u32 *count)
{
struct xen_platform_op op = INIT_EFI_OP(get_next_high_monotonic_count);
@ -221,10 +214,9 @@ efi_status_t xen_efi_get_next_high_mono_count(u32 *count)
return efi_data(op).status;
}
EXPORT_SYMBOL_GPL(xen_efi_get_next_high_mono_count);
efi_status_t xen_efi_update_capsule(efi_capsule_header_t **capsules,
unsigned long count, unsigned long sg_list)
static efi_status_t xen_efi_update_capsule(efi_capsule_header_t **capsules,
unsigned long count, unsigned long sg_list)
{
struct xen_platform_op op = INIT_EFI_OP(update_capsule);
@ -241,11 +233,9 @@ efi_status_t xen_efi_update_capsule(efi_capsule_header_t **capsules,
return efi_data(op).status;
}
EXPORT_SYMBOL_GPL(xen_efi_update_capsule);
efi_status_t xen_efi_query_capsule_caps(efi_capsule_header_t **capsules,
unsigned long count, u64 *max_size,
int *reset_type)
static efi_status_t xen_efi_query_capsule_caps(efi_capsule_header_t **capsules,
unsigned long count, u64 *max_size, int *reset_type)
{
struct xen_platform_op op = INIT_EFI_OP(query_capsule_capabilities);
@ -264,10 +254,9 @@ efi_status_t xen_efi_query_capsule_caps(efi_capsule_header_t **capsules,
return efi_data(op).status;
}
EXPORT_SYMBOL_GPL(xen_efi_query_capsule_caps);
void xen_efi_reset_system(int reset_type, efi_status_t status,
unsigned long data_size, efi_char16_t *data)
static void xen_efi_reset_system(int reset_type, efi_status_t status,
unsigned long data_size, efi_char16_t *data)
{
switch (reset_type) {
case EFI_RESET_COLD:
@ -281,4 +270,25 @@ void xen_efi_reset_system(int reset_type, efi_status_t status,
BUG();
}
}
EXPORT_SYMBOL_GPL(xen_efi_reset_system);
/*
* 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.set_variable_nonblocking = xen_efi_set_variable;
efi.query_variable_info = xen_efi_query_variable_info;
efi.query_variable_info_nonblocking = 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 = xen_efi_reset_system;
}

25
include/xen/xen-ops.h
View File

@ -212,30 +212,7 @@ int xen_xlate_map_ballooned_pages(xen_pfn_t **pfns, void **vaddr,
bool xen_running_on_version_or_later(unsigned int major, unsigned int minor);
efi_status_t xen_efi_get_time(efi_time_t *tm, efi_time_cap_t *tc);
efi_status_t xen_efi_set_time(efi_time_t *tm);
efi_status_t xen_efi_get_wakeup_time(efi_bool_t *enabled, efi_bool_t *pending,
efi_time_t *tm);
efi_status_t xen_efi_set_wakeup_time(efi_bool_t enabled, efi_time_t *tm);
efi_status_t xen_efi_get_variable(efi_char16_t *name, efi_guid_t *vendor,
u32 *attr, unsigned long *data_size,
void *data);
efi_status_t xen_efi_get_next_variable(unsigned long *name_size,
efi_char16_t *name, efi_guid_t *vendor);
efi_status_t xen_efi_set_variable(efi_char16_t *name, efi_guid_t *vendor,
u32 attr, unsigned long data_size,
void *data);
efi_status_t xen_efi_query_variable_info(u32 attr, u64 *storage_space,
u64 *remaining_space,
u64 *max_variable_size);
efi_status_t xen_efi_get_next_high_mono_count(u32 *count);
efi_status_t xen_efi_update_capsule(efi_capsule_header_t **capsules,
unsigned long count, unsigned long sg_list);
efi_status_t xen_efi_query_capsule_caps(efi_capsule_header_t **capsules,
unsigned long count, u64 *max_size,
int *reset_type);
void xen_efi_reset_system(int reset_type, efi_status_t status,
unsigned long data_size, efi_char16_t *data);
void xen_efi_runtime_setup(void);
#ifdef CONFIG_PREEMPT