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ff20661bb5
Since the UEFI 2.8A specification the UEFI enabled firmware provides a
configuration table EFI_RT_PROPERTIES_TABLE which indicates which runtime
services are enabled. The EFI stub reads this table and saves the value of
the field RuntimeServicesSupported internally.
The Firmware Test Suite requires the value to determine if UEFI runtime
services are correctly implemented.
With this patch an IOCTL call is provided to read the value of the field
RuntimeServicesSupported, e.g.
#define EFI_RUNTIME_GET_SUPPORTED_MASK \
_IOR('p', 0x0C, unsigned int)
unsigned int mask;
fd = open("/dev/efi_test", O_RDWR);
ret = ioctl(fd, EFI_RUNTIME_GET_SUPPORTED_MASK, &mask);
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Link: https://lore.kernel.org/r/20201127192051.1430-1-xypron.glpk@gmx.de
Acked-by: Colin Ian King <colin.king@canonical.com>
Acked-by: Ivan Hu <ivan.hu@canonical.com>
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
124 lines
2.7 KiB
C
124 lines
2.7 KiB
C
/* SPDX-License-Identifier: GPL-2.0+ */
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/*
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* EFI Test driver Header
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*
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* Copyright(C) 2012-2016 Canonical Ltd.
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*
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*/
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#ifndef _DRIVERS_FIRMWARE_EFI_TEST_H_
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#define _DRIVERS_FIRMWARE_EFI_TEST_H_
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#include <linux/efi.h>
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struct efi_getvariable {
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efi_char16_t *variable_name;
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efi_guid_t *vendor_guid;
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u32 *attributes;
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unsigned long *data_size;
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void *data;
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efi_status_t *status;
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} __packed;
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struct efi_setvariable {
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efi_char16_t *variable_name;
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efi_guid_t *vendor_guid;
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u32 attributes;
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unsigned long data_size;
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void *data;
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efi_status_t *status;
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} __packed;
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struct efi_getnextvariablename {
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unsigned long *variable_name_size;
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efi_char16_t *variable_name;
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efi_guid_t *vendor_guid;
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efi_status_t *status;
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} __packed;
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struct efi_queryvariableinfo {
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u32 attributes;
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u64 *maximum_variable_storage_size;
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u64 *remaining_variable_storage_size;
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u64 *maximum_variable_size;
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efi_status_t *status;
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} __packed;
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struct efi_gettime {
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efi_time_t *time;
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efi_time_cap_t *capabilities;
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efi_status_t *status;
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} __packed;
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struct efi_settime {
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efi_time_t *time;
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efi_status_t *status;
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} __packed;
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struct efi_getwakeuptime {
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efi_bool_t *enabled;
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efi_bool_t *pending;
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efi_time_t *time;
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efi_status_t *status;
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} __packed;
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struct efi_setwakeuptime {
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efi_bool_t enabled;
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efi_time_t *time;
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efi_status_t *status;
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} __packed;
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struct efi_getnexthighmonotoniccount {
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u32 *high_count;
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efi_status_t *status;
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} __packed;
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struct efi_querycapsulecapabilities {
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efi_capsule_header_t **capsule_header_array;
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unsigned long capsule_count;
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u64 *maximum_capsule_size;
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int *reset_type;
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efi_status_t *status;
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} __packed;
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struct efi_resetsystem {
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int reset_type;
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efi_status_t status;
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unsigned long data_size;
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efi_char16_t *data;
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} __packed;
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#define EFI_RUNTIME_GET_VARIABLE \
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_IOWR('p', 0x01, struct efi_getvariable)
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#define EFI_RUNTIME_SET_VARIABLE \
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_IOW('p', 0x02, struct efi_setvariable)
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#define EFI_RUNTIME_GET_TIME \
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_IOR('p', 0x03, struct efi_gettime)
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#define EFI_RUNTIME_SET_TIME \
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_IOW('p', 0x04, struct efi_settime)
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#define EFI_RUNTIME_GET_WAKETIME \
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_IOR('p', 0x05, struct efi_getwakeuptime)
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#define EFI_RUNTIME_SET_WAKETIME \
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_IOW('p', 0x06, struct efi_setwakeuptime)
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#define EFI_RUNTIME_GET_NEXTVARIABLENAME \
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_IOWR('p', 0x07, struct efi_getnextvariablename)
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#define EFI_RUNTIME_QUERY_VARIABLEINFO \
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_IOR('p', 0x08, struct efi_queryvariableinfo)
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#define EFI_RUNTIME_GET_NEXTHIGHMONOTONICCOUNT \
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_IOR('p', 0x09, struct efi_getnexthighmonotoniccount)
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#define EFI_RUNTIME_QUERY_CAPSULECAPABILITIES \
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_IOR('p', 0x0A, struct efi_querycapsulecapabilities)
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#define EFI_RUNTIME_RESET_SYSTEM \
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_IOW('p', 0x0B, struct efi_resetsystem)
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#define EFI_RUNTIME_GET_SUPPORTED_MASK \
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_IOR('p', 0x0C, unsigned int)
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#endif /* _DRIVERS_FIRMWARE_EFI_TEST_H_ */
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