mirror of
https://github.com/torvalds/linux.git
synced 2024-11-11 06:31:49 +00:00
f298939655
Some NVDIMMs, like the ones defined by the NVDIMM_FAMILY_INTEL command set, expose a security capability to lock the DIMMs at poweroff and require a passphrase to unlock them. The security model is derived from ATA security. In anticipation of other DIMMs implementing a similar scheme, and to abstract the core security implementation away from the device-specific details, introduce nvdimm_security_ops. Initially only a status retrieval operation, ->state(), is defined, along with the base infrastructure and definitions for future operations. Signed-off-by: Dave Jiang <dave.jiang@intel.com> Co-developed-by: Dan Williams <dan.j.williams@intel.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
115 lines
2.6 KiB
C
115 lines
2.6 KiB
C
// SPDX-License-Identifier: GPL-2.0
|
|
/*
|
|
* Copyright(c) 2018 Intel Corporation. All rights reserved.
|
|
* Intel specific definitions for NVDIMM Firmware Interface Table - NFIT
|
|
*/
|
|
#ifndef _NFIT_INTEL_H_
|
|
#define _NFIT_INTEL_H_
|
|
|
|
#define ND_INTEL_SMART 1
|
|
|
|
#define ND_INTEL_SMART_SHUTDOWN_COUNT_VALID (1 << 5)
|
|
#define ND_INTEL_SMART_SHUTDOWN_VALID (1 << 10)
|
|
|
|
struct nd_intel_smart {
|
|
u32 status;
|
|
union {
|
|
struct {
|
|
u32 flags;
|
|
u8 reserved0[4];
|
|
u8 health;
|
|
u8 spares;
|
|
u8 life_used;
|
|
u8 alarm_flags;
|
|
u16 media_temperature;
|
|
u16 ctrl_temperature;
|
|
u32 shutdown_count;
|
|
u8 ait_status;
|
|
u16 pmic_temperature;
|
|
u8 reserved1[8];
|
|
u8 shutdown_state;
|
|
u32 vendor_size;
|
|
u8 vendor_data[92];
|
|
} __packed;
|
|
u8 data[128];
|
|
};
|
|
} __packed;
|
|
|
|
extern const struct nvdimm_security_ops *intel_security_ops;
|
|
|
|
#define ND_INTEL_STATUS_SIZE 4
|
|
#define ND_INTEL_PASSPHRASE_SIZE 32
|
|
|
|
#define ND_INTEL_STATUS_NOT_SUPPORTED 1
|
|
#define ND_INTEL_STATUS_RETRY 5
|
|
#define ND_INTEL_STATUS_NOT_READY 9
|
|
#define ND_INTEL_STATUS_INVALID_STATE 10
|
|
#define ND_INTEL_STATUS_INVALID_PASS 11
|
|
#define ND_INTEL_STATUS_OVERWRITE_UNSUPPORTED 0x10007
|
|
#define ND_INTEL_STATUS_OQUERY_INPROGRESS 0x10007
|
|
#define ND_INTEL_STATUS_OQUERY_SEQUENCE_ERR 0x20007
|
|
|
|
#define ND_INTEL_SEC_STATE_ENABLED 0x02
|
|
#define ND_INTEL_SEC_STATE_LOCKED 0x04
|
|
#define ND_INTEL_SEC_STATE_FROZEN 0x08
|
|
#define ND_INTEL_SEC_STATE_PLIMIT 0x10
|
|
#define ND_INTEL_SEC_STATE_UNSUPPORTED 0x20
|
|
#define ND_INTEL_SEC_STATE_OVERWRITE 0x40
|
|
|
|
#define ND_INTEL_SEC_ESTATE_ENABLED 0x01
|
|
#define ND_INTEL_SEC_ESTATE_PLIMIT 0x02
|
|
|
|
struct nd_intel_get_security_state {
|
|
u32 status;
|
|
u8 extended_state;
|
|
u8 reserved[3];
|
|
u8 state;
|
|
u8 reserved1[3];
|
|
} __packed;
|
|
|
|
struct nd_intel_set_passphrase {
|
|
u8 old_pass[ND_INTEL_PASSPHRASE_SIZE];
|
|
u8 new_pass[ND_INTEL_PASSPHRASE_SIZE];
|
|
u32 status;
|
|
} __packed;
|
|
|
|
struct nd_intel_unlock_unit {
|
|
u8 passphrase[ND_INTEL_PASSPHRASE_SIZE];
|
|
u32 status;
|
|
} __packed;
|
|
|
|
struct nd_intel_disable_passphrase {
|
|
u8 passphrase[ND_INTEL_PASSPHRASE_SIZE];
|
|
u32 status;
|
|
} __packed;
|
|
|
|
struct nd_intel_freeze_lock {
|
|
u32 status;
|
|
} __packed;
|
|
|
|
struct nd_intel_secure_erase {
|
|
u8 passphrase[ND_INTEL_PASSPHRASE_SIZE];
|
|
u32 status;
|
|
} __packed;
|
|
|
|
struct nd_intel_overwrite {
|
|
u8 passphrase[ND_INTEL_PASSPHRASE_SIZE];
|
|
u32 status;
|
|
} __packed;
|
|
|
|
struct nd_intel_query_overwrite {
|
|
u32 status;
|
|
} __packed;
|
|
|
|
struct nd_intel_set_master_passphrase {
|
|
u8 old_pass[ND_INTEL_PASSPHRASE_SIZE];
|
|
u8 new_pass[ND_INTEL_PASSPHRASE_SIZE];
|
|
u32 status;
|
|
} __packed;
|
|
|
|
struct nd_intel_master_secure_erase {
|
|
u8 passphrase[ND_INTEL_PASSPHRASE_SIZE];
|
|
u32 status;
|
|
} __packed;
|
|
#endif
|