diff options
Diffstat (limited to 'arch/x86/include/asm/sev.h')
| -rw-r--r-- | arch/x86/include/asm/sev.h | 41 |
1 files changed, 33 insertions, 8 deletions
diff --git a/arch/x86/include/asm/sev.h b/arch/x86/include/asm/sev.h index 465b19fd1a2d..f9046c4b9a2b 100644 --- a/arch/x86/include/asm/sev.h +++ b/arch/x86/include/asm/sev.h @@ -503,6 +503,7 @@ static inline int pvalidate(unsigned long vaddr, bool rmp_psize, bool validate) } void setup_ghcb(void); +void snp_register_ghcb_early(unsigned long paddr); void early_snp_set_memory_private(unsigned long vaddr, unsigned long paddr, unsigned long npages); void early_snp_set_memory_shared(unsigned long vaddr, unsigned long paddr, @@ -511,14 +512,12 @@ void snp_set_memory_shared(unsigned long vaddr, unsigned long npages); void snp_set_memory_private(unsigned long vaddr, unsigned long npages); void snp_set_wakeup_secondary_cpu(void); bool snp_init(struct boot_params *bp); -void __noreturn snp_abort(void); void snp_dmi_setup(void); int snp_issue_svsm_attest_req(u64 call_id, struct svsm_call *call, struct svsm_attest_call *input); void snp_accept_memory(phys_addr_t start, phys_addr_t end); u64 snp_get_unsupported_features(u64 status); u64 sev_get_status(void); void sev_show_status(void); -void snp_update_svsm_ca(void); int prepare_pte_enc(struct pte_enc_desc *d); void set_pte_enc_mask(pte_t *kpte, unsigned long pfn, pgprot_t new_prot); void snp_kexec_finish(void); @@ -533,6 +532,10 @@ int snp_svsm_vtpm_send_command(u8 *buffer); void __init snp_secure_tsc_prepare(void); void __init snp_secure_tsc_init(void); +enum es_result savic_register_gpa(u64 gpa); +enum es_result savic_unregister_gpa(u64 *gpa); +u64 savic_ghcb_msr_read(u32 reg); +void savic_ghcb_msr_write(u32 reg, u64 value); static __always_inline void vc_ghcb_invalidate(struct ghcb *ghcb) { @@ -540,8 +543,6 @@ static __always_inline void vc_ghcb_invalidate(struct ghcb *ghcb) __builtin_memset(ghcb->save.valid_bitmap, 0, sizeof(ghcb->save.valid_bitmap)); } -void vc_forward_exception(struct es_em_ctxt *ctxt); - /* I/O parameters for CPUID-related helpers */ struct cpuid_leaf { u32 fn; @@ -552,7 +553,13 @@ struct cpuid_leaf { u32 edx; }; -int snp_cpuid(struct ghcb *ghcb, struct es_em_ctxt *ctxt, struct cpuid_leaf *leaf); +int svsm_perform_msr_protocol(struct svsm_call *call); +int __pi_svsm_perform_msr_protocol(struct svsm_call *call); +int snp_cpuid(void (*cpuid_fn)(void *ctx, struct cpuid_leaf *leaf), + void *ctx, struct cpuid_leaf *leaf); + +void svsm_issue_call(struct svsm_call *call, u8 *pending); +int svsm_process_result_codes(struct svsm_call *call); void __noreturn sev_es_terminate(unsigned int set, unsigned int reason); enum es_result sev_es_ghcb_hv_call(struct ghcb *ghcb, @@ -560,7 +567,18 @@ enum es_result sev_es_ghcb_hv_call(struct ghcb *ghcb, u64 exit_code, u64 exit_info_1, u64 exit_info_2); +bool sev_es_negotiate_protocol(void); +bool sev_es_check_cpu_features(void); + +extern u16 ghcb_version; extern struct ghcb *boot_ghcb; +extern bool sev_snp_needs_sfw; + +struct psc_desc { + enum psc_op op; + struct svsm_ca *ca; + u64 caa_pa; +}; static inline void sev_evict_cache(void *va, int npages) { @@ -600,7 +618,6 @@ static inline void snp_set_memory_shared(unsigned long vaddr, unsigned long npag static inline void snp_set_memory_private(unsigned long vaddr, unsigned long npages) { } static inline void snp_set_wakeup_secondary_cpu(void) { } static inline bool snp_init(struct boot_params *bp) { return false; } -static inline void snp_abort(void) { } static inline void snp_dmi_setup(void) { } static inline int snp_issue_svsm_attest_req(u64 call_id, struct svsm_call *call, struct svsm_attest_call *input) { @@ -610,7 +627,6 @@ static inline void snp_accept_memory(phys_addr_t start, phys_addr_t end) { } static inline u64 snp_get_unsupported_features(u64 status) { return 0; } static inline u64 sev_get_status(void) { return 0; } static inline void sev_show_status(void) { } -static inline void snp_update_svsm_ca(void) { } static inline int prepare_pte_enc(struct pte_enc_desc *d) { return 0; } static inline void set_pte_enc_mask(pte_t *kpte, unsigned long pfn, pgprot_t new_prot) { } static inline void snp_kexec_finish(void) { } @@ -624,6 +640,10 @@ static inline int snp_svsm_vtpm_send_command(u8 *buffer) { return -ENODEV; } static inline void __init snp_secure_tsc_prepare(void) { } static inline void __init snp_secure_tsc_init(void) { } static inline void sev_evict_cache(void *va, int npages) {} +static inline enum es_result savic_register_gpa(u64 gpa) { return ES_UNSUPPORTED; } +static inline enum es_result savic_unregister_gpa(u64 *gpa) { return ES_UNSUPPORTED; } +static inline void savic_ghcb_msr_write(u32 reg, u64 value) { } +static inline u64 savic_ghcb_msr_read(u32 reg) { return 0; } #endif /* CONFIG_AMD_MEM_ENCRYPT */ @@ -635,9 +655,13 @@ void snp_dump_hva_rmpentry(unsigned long address); int psmash(u64 pfn); int rmp_make_private(u64 pfn, u64 gpa, enum pg_level level, u32 asid, bool immutable); int rmp_make_shared(u64 pfn, enum pg_level level); -void snp_leak_pages(u64 pfn, unsigned int npages); +void __snp_leak_pages(u64 pfn, unsigned int npages, bool dump_rmp); void kdump_sev_callback(void); void snp_fixup_e820_tables(void); +static inline void snp_leak_pages(u64 pfn, unsigned int pages) +{ + __snp_leak_pages(pfn, pages, true); +} #else static inline bool snp_probe_rmptable_info(void) { return false; } static inline int snp_rmptable_init(void) { return -ENOSYS; } @@ -650,6 +674,7 @@ static inline int rmp_make_private(u64 pfn, u64 gpa, enum pg_level level, u32 as return -ENODEV; } static inline int rmp_make_shared(u64 pfn, enum pg_level level) { return -ENODEV; } +static inline void __snp_leak_pages(u64 pfn, unsigned int npages, bool dump_rmp) {} static inline void snp_leak_pages(u64 pfn, unsigned int npages) {} static inline void kdump_sev_callback(void) { } static inline void snp_fixup_e820_tables(void) {} |