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 SEV_POLICY_NODBG        0x1
  24 #define SEV_POLICY_NOKS         0x2
  25 #define SEV_POLICY_ES           0x4
  26 #define SEV_POLICY_NOSEND       0x8
  27 #define SEV_POLICY_DOMAIN       0x10
  28 #define SEV_POLICY_SEV          0x20
  29
  30 typedef struct SevKernelLoaderContext {
  31     char *setup_data;
  32     size_t setup_size;
  33     char *kernel_data;
  34     size_t kernel_size;
  35     char *initrd_data;
  36     size_t initrd_size;
  37     char *cmdline_data;
  38     size_t cmdline_size;
  39 } SevKernelLoaderContext;
  40
  41 #ifdef CONFIG_SEV
  42 bool sev_enabled(void);
  43 bool sev_es_enabled(void);
  44 #else
  45 #define sev_enabled() 0
  46 #define sev_es_enabled() 0
  47 #endif
  48
  49 extern uint32_t sev_get_cbit_position(void);
  50 extern uint32_t sev_get_reduced_phys_bits(void);
  51 extern bool sev_add_kernel_loader_hashes(SevKernelLoaderContext *ctx, Error **errp);
  52
  53 int sev_encrypt_flash(uint8_t *ptr, uint64_t len, Error **errp);
  54 int sev_inject_launch_secret(const char *hdr, const char *secret,
  55                              uint64_t gpa, Error **errp);
  56
  57 int sev_es_save_reset_vector(void *flash_ptr, uint64_t flash_size);
  58 void sev_es_set_reset_vector(CPUState *cpu);
  59
  60 int sev_kvm_init(ConfidentialGuestSupport *cgs, Error **errp);
  61
  62 #endif