diff options
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/efi_loader/efi_boottime.c | 39 |
1 files changed, 19 insertions, 20 deletions
diff --git a/lib/efi_loader/efi_boottime.c b/lib/efi_loader/efi_boottime.c index 5fea8b1dbd5..c0354258b95 100644 --- a/lib/efi_loader/efi_boottime.c +++ b/lib/efi_loader/efi_boottime.c @@ -35,16 +35,6 @@ LIST_HEAD(efi_events); */ static bool efi_is_direct_boot = true; -/* - * EFI can pass arbitrary additional "tables" containing vendor specific - * information to the payload. One such table is the FDT table which contains - * a pointer to a flattened device tree blob. - * - * In most cases we want to pass an FDT to the payload, so reserve one slot of - * config table space for it. The pointer gets populated by do_bootefi_exec(). - */ -static struct efi_configuration_table __efi_runtime_data efi_conf_table[16]; - #ifdef CONFIG_ARM /* * The "gd" pointer lives in a register on ARM and AArch64 that we declare @@ -1402,9 +1392,9 @@ static efi_status_t EFIAPI efi_locate_handle_ext( */ static void efi_remove_configuration_table(int i) { - struct efi_configuration_table *this = &efi_conf_table[i]; - struct efi_configuration_table *next = &efi_conf_table[i + 1]; - struct efi_configuration_table *end = &efi_conf_table[systab.nr_tables]; + struct efi_configuration_table *this = &systab.tables[i]; + struct efi_configuration_table *next = &systab.tables[i + 1]; + struct efi_configuration_table *end = &systab.tables[systab.nr_tables]; memmove(this, next, (ulong)end - (ulong)next); systab.nr_tables--; @@ -1432,9 +1422,9 @@ efi_status_t efi_install_configuration_table(const efi_guid_t *guid, /* Check for guid override */ for (i = 0; i < systab.nr_tables; i++) { - if (!guidcmp(guid, &efi_conf_table[i].guid)) { + if (!guidcmp(guid, &systab.tables[i].guid)) { if (table) - efi_conf_table[i].table = table; + systab.tables[i].table = table; else efi_remove_configuration_table(i); goto out; @@ -1445,12 +1435,12 @@ efi_status_t efi_install_configuration_table(const efi_guid_t *guid, return EFI_NOT_FOUND; /* No override, check for overflow */ - if (i >= ARRAY_SIZE(efi_conf_table)) + if (i >= EFI_MAX_CONFIGURATION_TABLES) return EFI_OUT_OF_RESOURCES; /* Add a new entry */ - memcpy(&efi_conf_table[i].guid, guid, sizeof(*guid)); - efi_conf_table[i].table = table; + memcpy(&systab.tables[i].guid, guid, sizeof(*guid)); + systab.tables[i].table = table; systab.nr_tables = i + 1; out: @@ -3136,7 +3126,7 @@ struct efi_system_table __efi_runtime_data systab = { .runtime = (void *)&efi_runtime_services, .boottime = (void *)&efi_boot_services, .nr_tables = 0, - .tables = (void *)efi_conf_table, + .tables = NULL, }; /** @@ -3146,9 +3136,18 @@ struct efi_system_table __efi_runtime_data systab = { */ efi_status_t efi_initialize_system_table(void) { + efi_status_t ret; + + /* Allocate configuration table array */ + ret = efi_allocate_pool(EFI_RUNTIME_SERVICES_DATA, + EFI_MAX_CONFIGURATION_TABLES * + sizeof(struct efi_configuration_table), + (void **)&systab.tables); + /* Set crc32 field in table headers */ efi_update_table_header_crc32(&systab.hdr); efi_update_table_header_crc32(&efi_runtime_services.hdr); efi_update_table_header_crc32(&efi_boot_services.hdr); - return EFI_SUCCESS; + + return ret; } |