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166 lines
4.0 KiB
166 lines
4.0 KiB
/* SPDX-License-Identifier: GPL-2.0-only WITH Linux-syscall-note */ |
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/* |
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* Userspace interface for AMD Secure Encrypted Virtualization (SEV) |
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* platform management commands. |
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* |
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* Copyright (C) 2016-2017 Advanced Micro Devices, Inc. |
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* |
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* Author: Brijesh Singh <[email protected]> |
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* |
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* SEV API specification is available at: https://developer.amd.com/sev/ |
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*/ |
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#ifndef __PSP_SEV_USER_H__ |
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#define __PSP_SEV_USER_H__ |
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#include <linux/types.h> |
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/** |
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* SEV platform commands |
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*/ |
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enum { |
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SEV_FACTORY_RESET = 0, |
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SEV_PLATFORM_STATUS, |
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SEV_PEK_GEN, |
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SEV_PEK_CSR, |
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SEV_PDH_GEN, |
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SEV_PDH_CERT_EXPORT, |
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SEV_PEK_CERT_IMPORT, |
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SEV_GET_ID, /* This command is deprecated, use SEV_GET_ID2 */ |
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SEV_GET_ID2, |
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SEV_MAX, |
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}; |
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/** |
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* SEV Firmware status code |
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*/ |
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typedef enum { |
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SEV_RET_SUCCESS = 0, |
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SEV_RET_INVALID_PLATFORM_STATE, |
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SEV_RET_INVALID_GUEST_STATE, |
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SEV_RET_INAVLID_CONFIG, |
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SEV_RET_INVALID_LEN, |
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SEV_RET_ALREADY_OWNED, |
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SEV_RET_INVALID_CERTIFICATE, |
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SEV_RET_POLICY_FAILURE, |
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SEV_RET_INACTIVE, |
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SEV_RET_INVALID_ADDRESS, |
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SEV_RET_BAD_SIGNATURE, |
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SEV_RET_BAD_MEASUREMENT, |
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SEV_RET_ASID_OWNED, |
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SEV_RET_INVALID_ASID, |
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SEV_RET_WBINVD_REQUIRED, |
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SEV_RET_DFFLUSH_REQUIRED, |
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SEV_RET_INVALID_GUEST, |
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SEV_RET_INVALID_COMMAND, |
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SEV_RET_ACTIVE, |
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SEV_RET_HWSEV_RET_PLATFORM, |
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SEV_RET_HWSEV_RET_UNSAFE, |
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SEV_RET_UNSUPPORTED, |
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SEV_RET_INVALID_PARAM, |
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SEV_RET_RESOURCE_LIMIT, |
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SEV_RET_SECURE_DATA_INVALID, |
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SEV_RET_MAX, |
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} sev_ret_code; |
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/** |
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* struct sev_user_data_status - PLATFORM_STATUS command parameters |
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* |
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* @major: major API version |
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* @minor: minor API version |
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* @state: platform state |
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* @flags: platform config flags |
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* @build: firmware build id for API version |
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* @guest_count: number of active guests |
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*/ |
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struct sev_user_data_status { |
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__u8 api_major; /* Out */ |
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__u8 api_minor; /* Out */ |
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__u8 state; /* Out */ |
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__u32 flags; /* Out */ |
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__u8 build; /* Out */ |
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__u32 guest_count; /* Out */ |
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} __packed; |
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#define SEV_STATUS_FLAGS_CONFIG_ES 0x0100 |
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/** |
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* struct sev_user_data_pek_csr - PEK_CSR command parameters |
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* |
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* @address: PEK certificate chain |
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* @length: length of certificate |
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*/ |
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struct sev_user_data_pek_csr { |
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__u64 address; /* In */ |
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__u32 length; /* In/Out */ |
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} __packed; |
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/** |
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* struct sev_user_data_cert_import - PEK_CERT_IMPORT command parameters |
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* |
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* @pek_address: PEK certificate chain |
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* @pek_len: length of PEK certificate |
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* @oca_address: OCA certificate chain |
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* @oca_len: length of OCA certificate |
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*/ |
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struct sev_user_data_pek_cert_import { |
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__u64 pek_cert_address; /* In */ |
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__u32 pek_cert_len; /* In */ |
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__u64 oca_cert_address; /* In */ |
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__u32 oca_cert_len; /* In */ |
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} __packed; |
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/** |
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* struct sev_user_data_pdh_cert_export - PDH_CERT_EXPORT command parameters |
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* |
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* @pdh_address: PDH certificate address |
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* @pdh_len: length of PDH certificate |
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* @cert_chain_address: PDH certificate chain |
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* @cert_chain_len: length of PDH certificate chain |
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*/ |
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struct sev_user_data_pdh_cert_export { |
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__u64 pdh_cert_address; /* In */ |
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__u32 pdh_cert_len; /* In/Out */ |
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__u64 cert_chain_address; /* In */ |
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__u32 cert_chain_len; /* In/Out */ |
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} __packed; |
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/** |
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* struct sev_user_data_get_id - GET_ID command parameters (deprecated) |
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* |
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* @socket1: Buffer to pass unique ID of first socket |
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* @socket2: Buffer to pass unique ID of second socket |
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*/ |
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struct sev_user_data_get_id { |
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__u8 socket1[64]; /* Out */ |
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__u8 socket2[64]; /* Out */ |
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} __packed; |
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/** |
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* struct sev_user_data_get_id2 - GET_ID command parameters |
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* @address: Buffer to store unique ID |
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* @length: length of the unique ID |
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*/ |
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struct sev_user_data_get_id2 { |
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__u64 address; /* In */ |
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__u32 length; /* In/Out */ |
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} __packed; |
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/** |
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* struct sev_issue_cmd - SEV ioctl parameters |
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* |
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* @cmd: SEV commands to execute |
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* @opaque: pointer to the command structure |
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* @error: SEV FW return code on failure |
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*/ |
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struct sev_issue_cmd { |
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__u32 cmd; /* In */ |
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__u64 data; /* In */ |
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__u32 error; /* Out */ |
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} __packed; |
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#define SEV_IOC_TYPE 'S' |
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#define SEV_ISSUE_CMD _IOWR(SEV_IOC_TYPE, 0x0, struct sev_issue_cmd) |
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#endif /* __PSP_USER_SEV_H */
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