cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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sev-guest.h (1922B)

      1/* SPDX-License-Identifier: GPL-2.0-only WITH Linux-syscall-note */
      2/*
      3 * Userspace interface for AMD SEV and SNP guest driver.
      4 *
      5 * Copyright (C) 2021 Advanced Micro Devices, Inc.
      6 *
      7 * Author: Brijesh Singh <brijesh.singh@amd.com>
      8 *
      9 * SEV API specification is available at: https://developer.amd.com/sev/
     10 */
     11
     12#ifndef __UAPI_LINUX_SEV_GUEST_H_
     13#define __UAPI_LINUX_SEV_GUEST_H_
     14
     15#include <linux/types.h>
     16
     17struct snp_report_req {
     18	/* user data that should be included in the report */
     19	__u8 user_data[64];
     20
     21	/* The vmpl level to be included in the report */
     22	__u32 vmpl;
     23
     24	/* Must be zero filled */
     25	__u8 rsvd[28];
     26};
     27
     28struct snp_report_resp {
     29	/* response data, see SEV-SNP spec for the format */
     30	__u8 data[4000];
     31};
     32
     33struct snp_derived_key_req {
     34	__u32 root_key_select;
     35	__u32 rsvd;
     36	__u64 guest_field_select;
     37	__u32 vmpl;
     38	__u32 guest_svn;
     39	__u64 tcb_version;
     40};
     41
     42struct snp_derived_key_resp {
     43	/* response data, see SEV-SNP spec for the format */
     44	__u8 data[64];
     45};
     46
     47struct snp_guest_request_ioctl {
     48	/* message version number (must be non-zero) */
     49	__u8 msg_version;
     50
     51	/* Request and response structure address */
     52	__u64 req_data;
     53	__u64 resp_data;
     54
     55	/* firmware error code on failure (see psp-sev.h) */
     56	__u64 fw_err;
     57};
     58
     59struct snp_ext_report_req {
     60	struct snp_report_req data;
     61
     62	/* where to copy the certificate blob */
     63	__u64 certs_address;
     64
     65	/* length of the certificate blob */
     66	__u32 certs_len;
     67};
     68
     69#define SNP_GUEST_REQ_IOC_TYPE	'S'
     70
     71/* Get SNP attestation report */
     72#define SNP_GET_REPORT _IOWR(SNP_GUEST_REQ_IOC_TYPE, 0x0, struct snp_guest_request_ioctl)
     73
     74/* Get a derived key from the root */
     75#define SNP_GET_DERIVED_KEY _IOWR(SNP_GUEST_REQ_IOC_TYPE, 0x1, struct snp_guest_request_ioctl)
     76
     77/* Get SNP extended report as defined in the GHCB specification version 2. */
     78#define SNP_GET_EXT_REPORT _IOWR(SNP_GUEST_REQ_IOC_TYPE, 0x2, struct snp_guest_request_ioctl)
     79
     80#endif /* __UAPI_LINUX_SEV_GUEST_H_ */