Merge branch 'next-integrity' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorri...

[sfrench/cifs-2.6.git] / include / linux / efi.h

diff --git a/include/linux/efi.h b/include/linux/efi.h
index 100ce4a4aff6ce1808a0993a7bc24ebeb3612468..45ff763fba76ddad0e0141fca2a5efb2c912b8fa 100644 (file)
--- a/include/linux/efi.h
+++ b/include/linux/efi.h
@@ -663,6 +663,10 @@ void efi_native_runtime_setup(void);
 #define EFI_IMAGE_SECURITY_DATABASE_GUID       EFI_GUID(0xd719b2cb, 0x3d3a, 0x4596,  0xa3, 0xbc, 0xda, 0xd0, 0x0e, 0x67, 0x65, 0x6f)
 #define EFI_SHIM_LOCK_GUID                     EFI_GUID(0x605dab50, 0xe046, 0x4300,  0xab, 0xb6, 0x3d, 0xd8, 0x10, 0xdd, 0x8b, 0x23)
 
+#define EFI_CERT_SHA256_GUID                   EFI_GUID(0xc1c41626, 0x504c, 0x4092, 0xac, 0xa9, 0x41, 0xf9, 0x36, 0x93, 0x43, 0x28)
+#define EFI_CERT_X509_GUID                     EFI_GUID(0xa5c059a1, 0x94e4, 0x4aa7, 0x87, 0xb5, 0xab, 0x15, 0x5c, 0x2b, 0xf0, 0x72)
+#define EFI_CERT_X509_SHA256_GUID              EFI_GUID(0x3bd2a492, 0x96c0, 0x4079, 0xb4, 0x20, 0xfc, 0xf9, 0x8e, 0xf1, 0x03, 0xed)
+
 /*
  * This GUID is used to pass to the kernel proper the struct screen_info
  * structure that was populated by the stub based on the GOP protocol instance
@@ -934,6 +938,27 @@ typedef struct {
        efi_memory_desc_t entry[0];
 } efi_memory_attributes_table_t;
 
+typedef struct {
+       efi_guid_t signature_owner;
+       u8 signature_data[];
+} efi_signature_data_t;
+
+typedef struct {
+       efi_guid_t signature_type;
+       u32 signature_list_size;
+       u32 signature_header_size;
+       u32 signature_size;
+       u8 signature_header[];
+       /* efi_signature_data_t signatures[][] */
+} efi_signature_list_t;
+
+typedef u8 efi_sha256_hash_t[32];
+
+typedef struct {
+       efi_sha256_hash_t to_be_signed_hash;
+       efi_time_t time_of_revocation;
+} efi_cert_x509_sha256_t;
+
 /*
  * All runtime access to EFI goes through this structure:
  */
@@ -1000,13 +1025,11 @@ extern void efi_memmap_walk (efi_freemem_callback_t callback, void *arg);
 extern void efi_gettimeofday (struct timespec64 *ts);
 extern void efi_enter_virtual_mode (void);     /* switch EFI to virtual mode, if possible */
 #ifdef CONFIG_X86
-extern void efi_free_boot_services(void);
 extern efi_status_t efi_query_variable_store(u32 attributes,
                                             unsigned long size,
                                             bool nonblocking);
 extern void efi_find_mirror(void);
 #else
-static inline void efi_free_boot_services(void) {}
 
 static inline efi_status_t efi_query_variable_store(u32 attributes,
                                                    unsigned long size,
@@ -1046,7 +1069,6 @@ extern void efi_mem_reserve(phys_addr_t addr, u64 size);
 extern int efi_mem_reserve_persistent(phys_addr_t addr, u64 size);
 extern void efi_initialize_iomem_resources(struct resource *code_resource,
                struct resource *data_resource, struct resource *bss_resource);
-extern void efi_reserve_boot_services(void);
 extern int efi_get_fdt_params(struct efi_fdt_params *params);
 extern struct kobject *efi_kobj;
 
@@ -1116,6 +1138,15 @@ extern int efi_memattr_apply_permissions(struct mm_struct *mm,
 char * __init efi_md_typeattr_format(char *buf, size_t size,
                                     const efi_memory_desc_t *md);
 
+
+typedef void (*efi_element_handler_t)(const char *source,
+                                     const void *element_data,
+                                     size_t element_size);
+extern int __init parse_efi_signature_list(
+       const char *source,
+       const void *data, size_t size,
+       efi_element_handler_t (*get_handler_for_guid)(const efi_guid_t *));
+
 /**
  * efi_range_is_wc - check the WC bit on an address range
  * @start: starting kvirt address
@@ -1715,9 +1746,19 @@ extern struct efi_runtime_work efi_rts_work;
 extern struct workqueue_struct *efi_rts_wq;
 
 struct linux_efi_memreserve {
-       phys_addr_t     next;
-       phys_addr_t     base;
-       phys_addr_t     size;
+       int             size;                   // allocated size of the array
+       atomic_t        count;                  // number of entries used
+       phys_addr_t     next;                   // pa of next struct instance
+       struct {
+               phys_addr_t     base;
+               phys_addr_t     size;
+       } entry[0];
 };
 
+#define EFI_MEMRESERVE_SIZE(count) (sizeof(struct linux_efi_memreserve) + \
+       (count) * sizeof(((struct linux_efi_memreserve *)0)->entry[0]))
+
+#define EFI_MEMRESERVE_COUNT(size) (((size) - sizeof(struct linux_efi_memreserve)) \
+       / sizeof(((struct linux_efi_memreserve *)0)->entry[0]))
+
 #endif /* _LINUX_EFI_H */