Quelle psp-sev.h
Sprache: C
/* SPDX-License-Identifier: GPL-2.0-only */
/*
* AMD Secure Encrypted Virtualization ( SEV ) driver interface
*
* Copyright ( C ) 2016 - 2017 Advanced Micro Devices , Inc .
*
* Author : Brijesh Singh < brijesh . singh @ amd . com >
*
* SEV API spec is available at https : //developer.amd.com/sev
*/
#ifndef __PSP_SEV_H__
#define __PSP_SEV_H__
#include <uapi/linux/psp-sev.h>
#define SEV_FW_BLOB_MAX_SIZE 0 x4000 /* 16KB */
/**
* SEV platform state
*/
enum sev_state {
SEV_STATE_UNINIT = 0 x0,
SEV_STATE_INIT = 0 x1,
SEV_STATE_WORKING = 0 x2,
SEV_STATE_MAX
};
/**
* SEV platform and guest management commands
*/
enum sev_cmd {
/* platform commands */
SEV_CMD_INIT = 0 x001,
SEV_CMD_SHUTDOWN = 0 x002,
SEV_CMD_FACTORY_RESET = 0 x003,
SEV_CMD_PLATFORM_STATUS = 0 x004,
SEV_CMD_PEK_GEN = 0 x005,
SEV_CMD_PEK_CSR = 0 x006,
SEV_CMD_PEK_CERT_IMPORT = 0 x007,
SEV_CMD_PDH_CERT_EXPORT = 0 x008,
SEV_CMD_PDH_GEN = 0 x009,
SEV_CMD_DF_FLUSH = 0 x00A,
SEV_CMD_DOWNLOAD_FIRMWARE = 0 x00B,
SEV_CMD_GET_ID = 0 x00C,
SEV_CMD_INIT_EX = 0 x00D,
/* Guest commands */
SEV_CMD_DECOMMISSION = 0 x020,
SEV_CMD_ACTIVATE = 0 x021,
SEV_CMD_DEACTIVATE = 0 x022,
SEV_CMD_GUEST_STATUS = 0 x023,
/* Guest launch commands */
SEV_CMD_LAUNCH_START = 0 x030,
SEV_CMD_LAUNCH_UPDATE_DATA = 0 x031,
SEV_CMD_LAUNCH_UPDATE_VMSA = 0 x032,
SEV_CMD_LAUNCH_MEASURE = 0 x033,
SEV_CMD_LAUNCH_UPDATE_SECRET = 0 x034,
SEV_CMD_LAUNCH_FINISH = 0 x035,
SEV_CMD_ATTESTATION_REPORT = 0 x036,
/* Guest migration commands (outgoing) */
SEV_CMD_SEND_START = 0 x040,
SEV_CMD_SEND_UPDATE_DATA = 0 x041,
SEV_CMD_SEND_UPDATE_VMSA = 0 x042,
SEV_CMD_SEND_FINISH = 0 x043,
SEV_CMD_SEND_CANCEL = 0 x044,
/* Guest migration commands (incoming) */
SEV_CMD_RECEIVE_START = 0 x050,
SEV_CMD_RECEIVE_UPDATE_DATA = 0 x051,
SEV_CMD_RECEIVE_UPDATE_VMSA = 0 x052,
SEV_CMD_RECEIVE_FINISH = 0 x053,
/* Guest debug commands */
SEV_CMD_DBG_DECRYPT = 0 x060,
SEV_CMD_DBG_ENCRYPT = 0 x061,
/* SNP specific commands */
SEV_CMD_SNP_INIT = 0 x081,
SEV_CMD_SNP_SHUTDOWN = 0 x082,
SEV_CMD_SNP_PLATFORM_STATUS = 0 x083,
SEV_CMD_SNP_DF_FLUSH = 0 x084,
SEV_CMD_SNP_INIT_EX = 0 x085,
SEV_CMD_SNP_SHUTDOWN_EX = 0 x086,
SEV_CMD_SNP_DECOMMISSION = 0 x090,
SEV_CMD_SNP_ACTIVATE = 0 x091,
SEV_CMD_SNP_GUEST_STATUS = 0 x092,
SEV_CMD_SNP_GCTX_CREATE = 0 x093,
SEV_CMD_SNP_GUEST_REQUEST = 0 x094,
SEV_CMD_SNP_ACTIVATE_EX = 0 x095,
SEV_CMD_SNP_LAUNCH_START = 0 x0A0,
SEV_CMD_SNP_LAUNCH_UPDATE = 0 x0A1,
SEV_CMD_SNP_LAUNCH_FINISH = 0 x0A2,
SEV_CMD_SNP_DBG_DECRYPT = 0 x0B0,
SEV_CMD_SNP_DBG_ENCRYPT = 0 x0B1,
SEV_CMD_SNP_PAGE_SWAP_OUT = 0 x0C0,
SEV_CMD_SNP_PAGE_SWAP_IN = 0 x0C1,
SEV_CMD_SNP_PAGE_MOVE = 0 x0C2,
SEV_CMD_SNP_PAGE_MD_INIT = 0 x0C3,
SEV_CMD_SNP_PAGE_SET_STATE = 0 x0C6,
SEV_CMD_SNP_PAGE_RECLAIM = 0 x0C7,
SEV_CMD_SNP_PAGE_UNSMASH = 0 x0C8,
SEV_CMD_SNP_CONFIG = 0 x0C9,
SEV_CMD_SNP_DOWNLOAD_FIRMWARE_EX = 0 x0CA,
SEV_CMD_SNP_COMMIT = 0 x0CB,
SEV_CMD_SNP_VLEK_LOAD = 0 x0CD,
SEV_CMD_MAX,
};
/**
* struct sev_data_init - INIT command parameters
*
* @ flags : processing flags
* @ tmr_address : system physical address used for SEV - ES
* @ tmr_len : len of tmr_address
*/
struct sev_data_init {
u32 flags; /* In */
u32 reserved; /* In */
u64 tmr_address; /* In */
u32 tmr_len; /* In */
} __packed;
/**
* struct sev_data_init_ex - INIT_EX command parameters
*
* @ length : len of the command buffer read by the PSP
* @ flags : processing flags
* @ tmr_address : system physical address used for SEV - ES
* @ tmr_len : len of tmr_address
* @ nv_address : system physical address used for PSP NV storage
* @ nv_len : len of nv_address
*/
struct sev_data_init_ex {
u32 length; /* In */
u32 flags; /* In */
u64 tmr_address; /* In */
u32 tmr_len; /* In */
u32 reserved; /* In */
u64 nv_address; /* In/Out */
u32 nv_len; /* In */
} __packed;
#define SEV_INIT_FLAGS_SEV_ES 0 x01
/**
* struct sev_data_pek_csr - PEK_CSR command parameters
*
* @ address : PEK certificate chain
* @ len : len of certificate
*/
struct sev_data_pek_csr {
u64 address; /* In */
u32 len; /* In/Out */
} __packed;
/**
* struct sev_data_cert_import - PEK_CERT_IMPORT command parameters
*
* @ pek_address : PEK certificate chain
* @ pek_len : len of PEK certificate
* @ oca_address : OCA certificate chain
* @ oca_len : len of OCA certificate
*/
struct sev_data_pek_cert_import {
u64 pek_cert_address; /* In */
u32 pek_cert_len; /* In */
u32 reserved; /* In */
u64 oca_cert_address; /* In */
u32 oca_cert_len; /* In */
} __packed;
/**
* struct sev_data_download_firmware - DOWNLOAD_FIRMWARE command parameters
*
* @ address : physical address of firmware image
* @ len : len of the firmware image
*/
struct sev_data_download_firmware {
u64 address; /* In */
u32 len; /* In */
} __packed;
/**
* struct sev_data_get_id - GET_ID command parameters
*
* @ address : physical address of region to place unique CPU ID ( s )
* @ len : len of the region
*/
struct sev_data_get_id {
u64 address; /* In */
u32 len; /* In/Out */
} __packed;
/**
* struct sev_data_pdh_cert_export - PDH_CERT_EXPORT command parameters
*
* @ pdh_address : PDH certificate address
* @ pdh_len : len of PDH certificate
* @ cert_chain_address : PDH certificate chain
* @ cert_chain_len : len of PDH certificate chain
*/
struct sev_data_pdh_cert_export {
u64 pdh_cert_address; /* In */
u32 pdh_cert_len; /* In/Out */
u32 reserved; /* In */
u64 cert_chain_address; /* In */
u32 cert_chain_len; /* In/Out */
} __packed;
/**
* struct sev_data_decommission - DECOMMISSION command parameters
*
* @ handle : handle of the VM to decommission
*/
struct sev_data_decommission {
u32 handle; /* In */
} __packed;
/**
* struct sev_data_activate - ACTIVATE command parameters
*
* @ handle : handle of the VM to activate
* @ asid : asid assigned to the VM
*/
struct sev_data_activate {
u32 handle; /* In */
u32 asid; /* In */
} __packed;
/**
* struct sev_data_deactivate - DEACTIVATE command parameters
*
* @ handle : handle of the VM to deactivate
*/
struct sev_data_deactivate {
u32 handle; /* In */
} __packed;
/**
* struct sev_data_guest_status - SEV GUEST_STATUS command parameters
*
* @ handle : handle of the VM to retrieve status
* @ policy : policy information for the VM
* @ asid : current ASID of the VM
* @ state : current state of the VM
*/
struct sev_data_guest_status {
u32 handle; /* In */
u32 policy; /* Out */
u32 asid; /* Out */
u8 state; /* Out */
} __packed;
/**
* struct sev_data_launch_start - LAUNCH_START command parameters
*
* @ handle : handle assigned to the VM
* @ policy : guest launch policy
* @ dh_cert_address : physical address of DH certificate blob
* @ dh_cert_len : len of DH certificate blob
* @ session_address : physical address of session parameters
* @ session_len : len of session parameters
*/
struct sev_data_launch_start {
u32 handle; /* In/Out */
u32 policy; /* In */
u64 dh_cert_address; /* In */
u32 dh_cert_len; /* In */
u32 reserved; /* In */
u64 session_address; /* In */
u32 session_len; /* In */
} __packed;
/**
* struct sev_data_launch_update_data - LAUNCH_UPDATE_DATA command parameter
*
* @ handle : handle of the VM to update
* @ len : len of memory to be encrypted
* @ address : physical address of memory region to encrypt
*/
struct sev_data_launch_update_data {
u32 handle; /* In */
u32 reserved;
u64 address; /* In */
u32 len; /* In */
} __packed;
/**
* struct sev_data_launch_update_vmsa - LAUNCH_UPDATE_VMSA command
*
* @ handle : handle of the VM
* @ address : physical address of memory region to encrypt
* @ len : len of memory region to encrypt
*/
struct sev_data_launch_update_vmsa {
u32 handle; /* In */
u32 reserved;
u64 address; /* In */
u32 len; /* In */
} __packed;
/**
* struct sev_data_launch_measure - LAUNCH_MEASURE command parameters
*
* @ handle : handle of the VM to process
* @ address : physical address containing the measurement blob
* @ len : len of measurement blob
*/
struct sev_data_launch_measure {
u32 handle; /* In */
u32 reserved;
u64 address; /* In */
u32 len; /* In/Out */
} __packed;
/**
* struct sev_data_launch_secret - LAUNCH_SECRET command parameters
*
* @ handle : handle of the VM to process
* @ hdr_address : physical address containing the packet header
* @ hdr_len : len of packet header
* @ guest_address : system physical address of guest memory region
* @ guest_len : len of guest_paddr
* @ trans_address : physical address of transport memory buffer
* @ trans_len : len of transport memory buffer
*/
struct sev_data_launch_secret {
u32 handle; /* In */
u32 reserved1;
u64 hdr_address; /* In */
u32 hdr_len; /* In */
u32 reserved2;
u64 guest_address; /* In */
u32 guest_len; /* In */
u32 reserved3;
u64 trans_address; /* In */
u32 trans_len; /* In */
} __packed;
/**
* struct sev_data_launch_finish - LAUNCH_FINISH command parameters
*
* @ handle : handle of the VM to process
*/
struct sev_data_launch_finish {
u32 handle; /* In */
} __packed;
/**
* struct sev_data_send_start - SEND_START command parameters
*
* @ handle : handle of the VM to process
* @ policy : policy information for the VM
* @ pdh_cert_address : physical address containing PDH certificate
* @ pdh_cert_len : len of PDH certificate
* @ plat_certs_address : physical address containing platform certificate
* @ plat_certs_len : len of platform certificate
* @ amd_certs_address : physical address containing AMD certificate
* @ amd_certs_len : len of AMD certificate
* @ session_address : physical address containing Session data
* @ session_len : len of session data
*/
struct sev_data_send_start {
u32 handle; /* In */
u32 policy; /* Out */
u64 pdh_cert_address; /* In */
u32 pdh_cert_len; /* In */
u32 reserved1;
u64 plat_certs_address; /* In */
u32 plat_certs_len; /* In */
u32 reserved2;
u64 amd_certs_address; /* In */
u32 amd_certs_len; /* In */
u32 reserved3;
u64 session_address; /* In */
u32 session_len; /* In/Out */
} __packed;
/**
* struct sev_data_send_update - SEND_UPDATE_DATA command
*
* @ handle : handle of the VM to process
* @ hdr_address : physical address containing packet header
* @ hdr_len : len of packet header
* @ guest_address : physical address of guest memory region to send
* @ guest_len : len of guest memory region to send
* @ trans_address : physical address of host memory region
* @ trans_len : len of host memory region
*/
struct sev_data_send_update_data {
u32 handle; /* In */
u32 reserved1;
u64 hdr_address; /* In */
u32 hdr_len; /* In/Out */
u32 reserved2;
u64 guest_address; /* In */
u32 guest_len; /* In */
u32 reserved3;
u64 trans_address; /* In */
u32 trans_len; /* In */
} __packed;
/**
* struct sev_data_send_update - SEND_UPDATE_VMSA command
*
* @ handle : handle of the VM to process
* @ hdr_address : physical address containing packet header
* @ hdr_len : len of packet header
* @ guest_address : physical address of guest memory region to send
* @ guest_len : len of guest memory region to send
* @ trans_address : physical address of host memory region
* @ trans_len : len of host memory region
*/
struct sev_data_send_update_vmsa {
u32 handle; /* In */
u64 hdr_address; /* In */
u32 hdr_len; /* In/Out */
u32 reserved2;
u64 guest_address; /* In */
u32 guest_len; /* In */
u32 reserved3;
u64 trans_address; /* In */
u32 trans_len; /* In */
} __packed;
/**
* struct sev_data_send_finish - SEND_FINISH command parameters
*
* @ handle : handle of the VM to process
*/
struct sev_data_send_finish {
u32 handle; /* In */
} __packed;
/**
* struct sev_data_send_cancel - SEND_CANCEL command parameters
*
* @ handle : handle of the VM to process
*/
struct sev_data_send_cancel {
u32 handle; /* In */
} __packed;
/**
* struct sev_data_receive_start - RECEIVE_START command parameters
*
* @ handle : handle of the VM to perform receive operation
* @ pdh_cert_address : system physical address containing PDH certificate blob
* @ pdh_cert_len : len of PDH certificate blob
* @ session_address : system physical address containing session blob
* @ session_len : len of session blob
*/
struct sev_data_receive_start {
u32 handle; /* In/Out */
u32 policy; /* In */
u64 pdh_cert_address; /* In */
u32 pdh_cert_len; /* In */
u32 reserved1;
u64 session_address; /* In */
u32 session_len; /* In */
} __packed;
/**
* struct sev_data_receive_update_data - RECEIVE_UPDATE_DATA command parameters
*
* @ handle : handle of the VM to update
* @ hdr_address : physical address containing packet header blob
* @ hdr_len : len of packet header
* @ guest_address : system physical address of guest memory region
* @ guest_len : len of guest memory region
* @ trans_address : system physical address of transport buffer
* @ trans_len : len of transport buffer
*/
struct sev_data_receive_update_data {
u32 handle; /* In */
u32 reserved1;
u64 hdr_address; /* In */
u32 hdr_len; /* In */
u32 reserved2;
u64 guest_address; /* In */
u32 guest_len; /* In */
u32 reserved3;
u64 trans_address; /* In */
u32 trans_len; /* In */
} __packed;
/**
* struct sev_data_receive_update_vmsa - RECEIVE_UPDATE_VMSA command parameters
*
* @ handle : handle of the VM to update
* @ hdr_address : physical address containing packet header blob
* @ hdr_len : len of packet header
* @ guest_address : system physical address of guest memory region
* @ guest_len : len of guest memory region
* @ trans_address : system physical address of transport buffer
* @ trans_len : len of transport buffer
*/
struct sev_data_receive_update_vmsa {
u32 handle; /* In */
u32 reserved1;
u64 hdr_address; /* In */
u32 hdr_len; /* In */
u32 reserved2;
u64 guest_address; /* In */
u32 guest_len; /* In */
u32 reserved3;
u64 trans_address; /* In */
u32 trans_len; /* In */
} __packed;
/**
* struct sev_data_receive_finish - RECEIVE_FINISH command parameters
*
* @ handle : handle of the VM to finish
*/
struct sev_data_receive_finish {
u32 handle; /* In */
} __packed;
/**
* struct sev_data_dbg - DBG_ENCRYPT / DBG_DECRYPT command parameters
*
* @ handle : handle of the VM to perform debug operation
* @ src_addr : source address of data to operate on
* @ dst_addr : destination address of data to operate on
* @ len : len of data to operate on
*/
struct sev_data_dbg {
u32 handle; /* In */
u32 reserved;
u64 src_addr; /* In */
u64 dst_addr; /* In */
u32 len; /* In */
} __packed;
/**
* struct sev_data_attestation_report - SEV_ATTESTATION_REPORT command parameters
*
* @ handle : handle of the VM
* @ mnonce : a random nonce that will be included in the report .
* @ address : physical address where the report will be copied .
* @ len : length of the physical buffer .
*/
struct sev_data_attestation_report {
u32 handle; /* In */
u32 reserved;
u64 address; /* In */
u8 mnonce[16 ]; /* In */
u32 len; /* In/Out */
} __packed;
/**
* struct sev_data_snp_download_firmware - SNP_DOWNLOAD_FIRMWARE command params
*
* @ address : physical address of firmware image
* @ len : length of the firmware image
*/
struct sev_data_snp_download_firmware {
u64 address; /* In */
u32 len; /* In */
} __packed;
/**
* struct sev_data_snp_activate - SNP_ACTIVATE command params
*
* @ gctx_paddr : system physical address guest context page
* @ asid : ASID to bind to the guest
*/
struct sev_data_snp_activate {
u64 gctx_paddr; /* In */
u32 asid; /* In */
} __packed;
/**
* struct sev_data_snp_addr - generic SNP command params
*
* @ address : physical address of generic data param
*/
struct sev_data_snp_addr {
u64 address; /* In/Out */
} __packed;
/**
* struct sev_data_snp_launch_start - SNP_LAUNCH_START command params
*
* @ gctx_paddr : system physical address of guest context page
* @ policy : guest policy
* @ ma_gctx_paddr : system physical address of migration agent
* @ ma_en : the guest is associated with a migration agent
* @ imi_en : launch flow is launching an IMI ( Incoming Migration Image ) for the
* purpose of guest - assisted migration .
* @ rsvd : reserved
* @ desired_tsc_khz : hypervisor desired mean TSC freq in kHz of the guest
* @ gosvw : guest OS - visible workarounds , as defined by hypervisor
*/
struct sev_data_snp_launch_start {
u64 gctx_paddr; /* In */
u64 policy; /* In */
u64 ma_gctx_paddr; /* In */
u32 ma_en:1 ; /* In */
u32 imi_en:1 ; /* In */
u32 rsvd:30 ;
u32 desired_tsc_khz; /* In */
u8 gosvw[16 ]; /* In */
} __packed;
/* SNP support page type */
enum {
SNP_PAGE_TYPE_NORMAL = 0 x1,
SNP_PAGE_TYPE_VMSA = 0 x2,
SNP_PAGE_TYPE_ZERO = 0 x3,
SNP_PAGE_TYPE_UNMEASURED = 0 x4,
SNP_PAGE_TYPE_SECRET = 0 x5,
SNP_PAGE_TYPE_CPUID = 0 x6,
SNP_PAGE_TYPE_MAX
};
/**
* struct sev_data_snp_launch_update - SNP_LAUNCH_UPDATE command params
*
* @ gctx_paddr : system physical address of guest context page
* @ page_size : page size 0 indicates 4 K and 1 indicates 2 MB page
* @ page_type : encoded page type
* @ imi_page : indicates that this page is part of the IMI ( Incoming Migration
* Image ) of the guest
* @ rsvd : reserved
* @ rsvd2 : reserved
* @ address : system physical address of destination page to encrypt
* @ rsvd3 : reserved
* @ vmpl1_perms : VMPL permission mask for VMPL1
* @ vmpl2_perms : VMPL permission mask for VMPL2
* @ vmpl3_perms : VMPL permission mask for VMPL3
* @ rsvd4 : reserved
*/
struct sev_data_snp_launch_update {
u64 gctx_paddr; /* In */
u32 page_size:1 ; /* In */
u32 page_type:3 ; /* In */
u32 imi_page:1 ; /* In */
u32 rsvd:27 ;
u32 rsvd2;
u64 address; /* In */
u32 rsvd3:8 ;
u32 vmpl1_perms:8 ; /* In */
u32 vmpl2_perms:8 ; /* In */
u32 vmpl3_perms:8 ; /* In */
u32 rsvd4;
} __packed;
/**
* struct sev_data_snp_launch_finish - SNP_LAUNCH_FINISH command params
*
* @ gctx_paddr : system physical address of guest context page
* @ id_block_paddr : system physical address of ID block
* @ id_auth_paddr : system physical address of ID block authentication structure
* @ id_block_en : indicates whether ID block is present
* @ auth_key_en : indicates whether author key is present in authentication structure
* @ vcek_disabled : indicates whether use of VCEK is allowed for attestation reports
* @ rsvd : reserved
* @ host_data : host - supplied data for guest , not interpreted by firmware
*/
struct sev_data_snp_launch_finish {
u64 gctx_paddr;
u64 id_block_paddr;
u64 id_auth_paddr;
u8 id_block_en:1 ;
u8 auth_key_en:1 ;
u8 vcek_disabled:1 ;
u64 rsvd:61 ;
u8 host_data[32 ];
} __packed;
/**
* struct sev_data_snp_guest_status - SNP_GUEST_STATUS command params
*
* @ gctx_paddr : system physical address of guest context page
* @ address : system physical address of guest status page
*/
struct sev_data_snp_guest_status {
u64 gctx_paddr;
u64 address;
} __packed;
/**
* struct sev_data_snp_page_reclaim - SNP_PAGE_RECLAIM command params
*
* @ paddr : system physical address of page to be claimed . The 0 th bit in the
* address indicates the page size . 0 h indicates 4 KB and 1 h indicates
* 2 MB page .
*/
struct sev_data_snp_page_reclaim {
u64 paddr;
} __packed;
/**
* struct sev_data_snp_page_unsmash - SNP_PAGE_UNSMASH command params
*
* @ paddr : system physical address of page to be unsmashed . The 0 th bit in the
* address indicates the page size . 0 h indicates 4 KB and 1 h indicates
* 2 MB page .
*/
struct sev_data_snp_page_unsmash {
u64 paddr;
} __packed;
/**
* struct sev_data_snp_dbg - DBG_ENCRYPT / DBG_DECRYPT command parameters
*
* @ gctx_paddr : system physical address of guest context page
* @ src_addr : source address of data to operate on
* @ dst_addr : destination address of data to operate on
*/
struct sev_data_snp_dbg {
u64 gctx_paddr; /* In */
u64 src_addr; /* In */
u64 dst_addr; /* In */
} __packed;
/**
* struct sev_data_snp_guest_request - SNP_GUEST_REQUEST command params
*
* @ gctx_paddr : system physical address of guest context page
* @ req_paddr : system physical address of request page
* @ res_paddr : system physical address of response page
*/
struct sev_data_snp_guest_request {
u64 gctx_paddr; /* In */
u64 req_paddr; /* In */
u64 res_paddr; /* In */
} __packed;
/**
* struct sev_data_snp_init_ex - SNP_INIT_EX structure
*
* @ init_rmp : indicate that the RMP should be initialized .
* @ list_paddr_en : indicate that list_paddr is valid
* @ rsvd : reserved
* @ rsvd1 : reserved
* @ list_paddr : system physical address of range list
* @ rsvd2 : reserved
*/
struct sev_data_snp_init_ex {
u32 init_rmp:1 ;
u32 list_paddr_en:1 ;
u32 rsvd:30 ;
u32 rsvd1;
u64 list_paddr;
u8 rsvd2[48 ];
} __packed;
/**
* struct sev_data_range - RANGE structure
*
* @ base : system physical address of first byte of range
* @ page_count : number of 4 KB pages in this range
* @ rsvd : reserved
*/
struct sev_data_range {
u64 base;
u32 page_count;
u32 rsvd;
} __packed;
/**
* struct sev_data_range_list - RANGE_LIST structure
*
* @ num_elements : number of elements in RANGE_ARRAY
* @ rsvd : reserved
* @ ranges : array of num_elements of type RANGE
*/
struct sev_data_range_list {
u32 num_elements;
u32 rsvd;
struct sev_data_range ranges[];
} __packed;
/**
* struct sev_data_snp_shutdown_ex - SNP_SHUTDOWN_EX structure
*
* @ len : length of the command buffer read by the PSP
* @ iommu_snp_shutdown : Disable enforcement of SNP in the IOMMU
* @ rsvd1 : reserved
*/
struct sev_data_snp_shutdown_ex {
u32 len;
u32 iommu_snp_shutdown:1 ;
u32 rsvd1:31 ;
} __packed;
/**
* struct sev_platform_init_args
*
* @ error : SEV firmware error code
* @ probe : True if this is being called as part of CCP module probe , which
* will defer SEV_INIT / SEV_INIT_EX firmware initialization until needed
* unless psp_init_on_probe module param is set
*/
struct sev_platform_init_args {
int error;
bool probe;
};
/**
* struct sev_data_snp_commit - SNP_COMMIT structure
*
* @ len : length of the command buffer read by the PSP
*/
struct sev_data_snp_commit {
u32 len;
} __packed;
#ifdef CONFIG_CRYPTO_DEV_SP_PSP
/**
* sev_module_init - perform PSP SEV module initialization
*
* Returns :
* 0 if the PSP module is successfully initialized
* negative value if the PSP module initialization fails
*/
int sev_module_init(void );
/**
* sev_platform_init - perform SEV INIT command
*
* @ args : struct sev_platform_init_args to pass in arguments
*
* Returns :
* 0 if the SEV successfully processed the command
* - % ENODEV if the SEV device is not available
* - % ENOTSUPP if the SEV does not support SEV
* - % ETIMEDOUT if the SEV command timed out
* - % EIO if the SEV returned a non - zero return code
*/
int sev_platform_init(struct sev_platform_init_args *args);
/**
* sev_platform_status - perform SEV PLATFORM_STATUS command
*
* @ status : sev_user_data_status structure to be processed
* @ error : SEV command return code
*
* Returns :
* 0 if the SEV successfully processed the command
* - % ENODEV if the SEV device is not available
* - % ENOTSUPP if the SEV does not support SEV
* - % ETIMEDOUT if the SEV command timed out
* - % EIO if the SEV returned a non - zero return code
*/
int sev_platform_status(struct sev_user_data_status *status, int *error);
/**
* sev_issue_cmd_external_user - issue SEV command by other driver with a file
* handle .
*
* This function can be used by other drivers to issue a SEV command on
* behalf of userspace . The caller must pass a valid SEV file descriptor
* so that we know that it has access to SEV device .
*
* @ filep - SEV device file pointer
* @ cmd - command to issue
* @ data - command buffer
* @ error : SEV command return code
*
* Returns :
* 0 if the SEV successfully processed the command
* - % ENODEV if the SEV device is not available
* - % ENOTSUPP if the SEV does not support SEV
* - % ETIMEDOUT if the SEV command timed out
* - % EIO if the SEV returned a non - zero return code
* - % EINVAL if the SEV file descriptor is not valid
*/
int sev_issue_cmd_external_user(struct file *filep, unsigned int id,
void *data, int *error);
/**
* sev_guest_deactivate - perform SEV DEACTIVATE command
*
* @ deactivate : sev_data_deactivate structure to be processed
* @ sev_ret : sev command return code
*
* Returns :
* 0 if the sev successfully processed the command
* - % ENODEV if the sev device is not available
* - % ENOTSUPP if the sev does not support SEV
* - % ETIMEDOUT if the sev command timed out
* - % EIO if the sev returned a non - zero return code
*/
int sev_guest_deactivate(struct sev_data_deactivate *data, int *error);
/**
* sev_guest_activate - perform SEV ACTIVATE command
*
* @ activate : sev_data_activate structure to be processed
* @ sev_ret : sev command return code
*
* Returns :
* 0 if the sev successfully processed the command
* - % ENODEV if the sev device is not available
* - % ENOTSUPP if the sev does not support SEV
* - % ETIMEDOUT if the sev command timed out
* - % EIO if the sev returned a non - zero return code
*/
int sev_guest_activate(struct sev_data_activate *data, int *error);
/**
* sev_guest_df_flush - perform SEV DF_FLUSH command
*
* @ sev_ret : sev command return code
*
* Returns :
* 0 if the sev successfully processed the command
* - % ENODEV if the sev device is not available
* - % ENOTSUPP if the sev does not support SEV
* - % ETIMEDOUT if the sev command timed out
* - % EIO if the sev returned a non - zero return code
*/
int sev_guest_df_flush(int *error);
/**
* sev_guest_decommission - perform SEV DECOMMISSION command
*
* @ decommission : sev_data_decommission structure to be processed
* @ sev_ret : sev command return code
*
* Returns :
* 0 if the sev successfully processed the command
* - % ENODEV if the sev device is not available
* - % ENOTSUPP if the sev does not support SEV
* - % ETIMEDOUT if the sev command timed out
* - % EIO if the sev returned a non - zero return code
*/
int sev_guest_decommission(struct sev_data_decommission *data, int *error);
/**
* sev_do_cmd - issue an SEV or an SEV - SNP command
*
* @ cmd : SEV or SEV - SNP firmware command to issue
* @ data : arguments for firmware command
* @ psp_ret : SEV command return code
*
* Returns :
* 0 if the SEV device successfully processed the command
* - % ENODEV if the PSP device is not available
* - % ENOTSUPP if PSP device does not support SEV
* - % ETIMEDOUT if the SEV command timed out
* - % EIO if PSP device returned a non - zero return code
*/
int sev_do_cmd(int cmd, void *data, int *psp_ret);
void *psp_copy_user_blob(u64 uaddr, u32 len);
void *snp_alloc_firmware_page(gfp_t mask);
void snp_free_firmware_page(void *addr);
void sev_platform_shutdown(void );
#else /* !CONFIG_CRYPTO_DEV_SP_PSP */
static inline int
sev_platform_status(struct sev_user_data_status *status, int *error) { return -ENODEV; }
static inline int sev_platform_init(struct sev_platform_init_args *args) { return -ENODEV; }
static inline int
sev_guest_deactivate(struct sev_data_deactivate *data, int *error) { return -ENODEV; }
static inline int
sev_guest_decommission(struct sev_data_decommission *data, int *error) { return -ENODEV; }
static inline int
sev_do_cmd(int cmd, void *data, int *psp_ret) { return -ENODEV; }
static inline int
sev_guest_activate(struct sev_data_activate *data, int *error) { return -ENODEV; }
static inline int sev_guest_df_flush(int *error) { return -ENODEV; }
static inline int
sev_issue_cmd_external_user(struct file *filep, unsigned int id, void *data, int *error) { return -ENODEV; }
static inline void *psp_copy_user_blob(u64 __user uaddr, u32 len) { return ERR_PTR(-EINVAL); }
static inline void *snp_alloc_firmware_page(gfp_t mask)
{
return NULL;
}
static inline void snp_free_firmware_page(void *addr) { }
static inline void sev_platform_shutdown(void ) { }
#endif /* CONFIG_CRYPTO_DEV_SP_PSP */
#endif /* __PSP_SEV_H__ */
Messung V0.5 in Prozent C=80 H=100 G=90
¤ Dauer der Verarbeitung: 0.23 Sekunden
(vorverarbeitet am 2026-09-29)
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*© Formatika GbR, Deutschland
2026-10-10
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