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 63