target/i386/sev.h

   1 /*
   2  * QEMU Secure Encrypted Virutualization (SEV) support
   3  *
   4  * Copyright: Advanced Micro Devices, 2016-2018
   5  *
   6  * Authors:
   7  *  Brijesh Singh <brijesh.singh@amd.com>
   8  *
   9  * This work is licensed under the terms of the GNU GPL, version 2 or later.
  10  * See the COPYING file in the top-level directory.
  11  *
  12  */
  13
  14 #ifndef I386_SEV_H
  15 #define I386_SEV_H
  16
  17 #ifndef CONFIG_USER_ONLY
  18 #include CONFIG_DEVICES /* CONFIG_SEV */
  19 #endif
  20
  21 #include "exec/confidential-guest-support.h"
  22
  23 #define TYPE_SEV_COMMON "sev-common"
  24 #define TYPE_SEV_GUEST "sev-guest"
  25 #define TYPE_SEV_SNP_GUEST "sev-snp-guest"
  26
  27 #define SEV_POLICY_NODBG        0x1
  28 #define SEV_POLICY_NOKS         0x2
  29 #define SEV_POLICY_ES           0x4
  30 #define SEV_POLICY_NOSEND       0x8
  31 #define SEV_POLICY_DOMAIN       0x10
  32 #define SEV_POLICY_SEV          0x20
  33
  34 #define SEV_SNP_POLICY_SMT      0x10000
  35 #define SEV_SNP_POLICY_DBG      0x80000
  36
  37 typedef struct SevKernelLoaderContext {
  38     char *setup_data;
  39     size_t setup_size;
  40     char *kernel_data;
  41     size_t kernel_size;
  42     char *initrd_data;
  43     size_t initrd_size;
  44     char *cmdline_data;
  45     size_t cmdline_size;
  46 } SevKernelLoaderContext;
  47
  48 #ifdef CONFIG_SEV
  49 bool sev_enabled(void);
  50 bool sev_es_enabled(void);
  51 bool sev_snp_enabled(void);
  52 #else
  53 #define sev_enabled() 0
  54 #define sev_es_enabled() 0
  55 #define sev_snp_enabled() 0
  56 #endif
  57
  58 uint32_t sev_get_cbit_position(void);
  59 uint32_t sev_get_reduced_phys_bits(void);
  60 bool sev_add_kernel_loader_hashes(SevKernelLoaderContext *ctx, Error **errp);
  61
  62 int sev_encrypt_flash(hwaddr gpa, uint8_t *ptr, uint64_t len, Error **errp);
  63 int sev_inject_launch_secret(const char *hdr, const char *secret,
  64                              uint64_t gpa, Error **errp);
  65
  66 int sev_es_save_reset_vector(void *flash_ptr, uint64_t flash_size);
  67 void sev_es_set_reset_vector(CPUState *cpu);
  68
  69 void pc_system_parse_sev_metadata(uint8_t *flash_ptr, size_t flash_size);
  70
  71 #endif