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include
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linux
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sev-guest.h
/* SPDX-License-Identifier: GPL-2.0-only WITH Linux-syscall-note */ /* * Userspace interface for AMD SEV and SNP guest driver. * * Copyright (C) 2021 Advanced Micro Devices, Inc. * * Author: Brijesh Singh <brijesh.singh@amd.com> * * SEV API specification is available at: https://developer.amd.com/sev/ */ #ifndef __UAPI_LINUX_SEV_GUEST_H_ #define __UAPI_LINUX_SEV_GUEST_H_ #include <linux/types.h> struct snp_report_req { /* user data that should be included in the report */ __u8 user_data[64]; /* The vmpl level to be included in the report */ __u32 vmpl; /* Must be zero filled */ __u8 rsvd[28]; }; struct snp_report_resp { /* response data, see SEV-SNP spec for the format */ __u8 data[4000]; }; struct snp_derived_key_req { __u32 root_key_select; __u32 rsvd; __u64 guest_field_select; __u32 vmpl; __u32 guest_svn; __u64 tcb_version; }; struct snp_derived_key_resp { /* response data, see SEV-SNP spec for the format */ __u8 data[64]; }; struct snp_guest_request_ioctl { /* message version number (must be non-zero) */ __u8 msg_version; /* Request and response structure address */ __u64 req_data; __u64 resp_data; /* bits[63:32]: VMM error code, bits[31:0] firmware error code (see psp-sev.h) */ union { __u64 exitinfo2; struct { __u32 fw_error; __u32 vmm_error; }; }; }; struct snp_ext_report_req { struct snp_report_req data; /* where to copy the certificate blob */ __u64 certs_address; /* length of the certificate blob */ __u32 certs_len; }; #define SNP_GUEST_REQ_IOC_TYPE 'S' /* Get SNP attestation report */ #define SNP_GET_REPORT _IOWR(SNP_GUEST_REQ_IOC_TYPE, 0x0, struct snp_guest_request_ioctl) /* Get a derived key from the root */ #define SNP_GET_DERIVED_KEY _IOWR(SNP_GUEST_REQ_IOC_TYPE, 0x1, struct snp_guest_request_ioctl) /* Get SNP extended report as defined in the GHCB specification version 2. */ #define SNP_GET_EXT_REPORT _IOWR(SNP_GUEST_REQ_IOC_TYPE, 0x2, struct snp_guest_request_ioctl) /* Guest message request EXIT_INFO_2 constants */ #define SNP_GUEST_FW_ERR_MASK GENMASK_ULL(31, 0) #define SNP_GUEST_VMM_ERR_SHIFT 32 #define SNP_GUEST_VMM_ERR(x) (((u64)x) << SNP_GUEST_VMM_ERR_SHIFT) #define SNP_GUEST_VMM_ERR_INVALID_LEN 1 #define SNP_GUEST_VMM_ERR_BUSY 2 #endif /* __UAPI_LINUX_SEV_GUEST_H_ */
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