Implement the EVT_SIGNAL_VIRTUAL_ADDRESS_CHANGE event.
This requires allocating the event and the event list from runtime data.
Signed-off-by: Heinrich Schuchardt xypron.glpk@gmx.de --- lib/efi_loader/efi_boottime.c | 25 +++++++++++++++++++------ lib/efi_loader/efi_runtime.c | 14 ++++++++++++-- 2 files changed, 31 insertions(+), 8 deletions(-)
diff --git a/lib/efi_loader/efi_boottime.c b/lib/efi_loader/efi_boottime.c index c2f89805c7..62e4994671 100644 --- a/lib/efi_loader/efi_boottime.c +++ b/lib/efi_loader/efi_boottime.c @@ -25,7 +25,7 @@ static efi_uintn_t efi_tpl = TPL_APPLICATION; LIST_HEAD(efi_obj_list);
/* List of all events */ -LIST_HEAD(efi_events); +__efi_runtime_data LIST_HEAD(efi_events);
/* List of queued events */ LIST_HEAD(efi_event_queue); @@ -650,6 +650,8 @@ efi_status_t efi_create_event(uint32_t type, efi_uintn_t notify_tpl, struct efi_event **event) { struct efi_event *evt; + efi_status_t ret; + int pool_type;
if (event == NULL) return EFI_INVALID_PARAMETER; @@ -662,7 +664,10 @@ efi_status_t efi_create_event(uint32_t type, efi_uintn_t notify_tpl, case EVT_NOTIFY_WAIT: case EVT_TIMER | EVT_NOTIFY_WAIT: case EVT_SIGNAL_EXIT_BOOT_SERVICES: + pool_type = EFI_BOOT_SERVICES_DATA; + break; case EVT_SIGNAL_VIRTUAL_ADDRESS_CHANGE: + pool_type = EFI_RUNTIME_SERVICES_DATA; break; default: return EFI_INVALID_PARAMETER; @@ -672,9 +677,11 @@ efi_status_t efi_create_event(uint32_t type, efi_uintn_t notify_tpl, (!notify_function || is_valid_tpl(notify_tpl) != EFI_SUCCESS)) return EFI_INVALID_PARAMETER;
- evt = calloc(1, sizeof(struct efi_event)); - if (!evt) - return EFI_OUT_OF_RESOURCES; + ret = efi_allocate_pool(pool_type, sizeof(struct efi_event), + (void **)&evt); + if (ret != EFI_SUCCESS) + return ret; + memset(evt, 0, sizeof(struct efi_event)); evt->type = type; evt->notify_tpl = notify_tpl; evt->notify_function = notify_function; @@ -982,7 +989,7 @@ static efi_status_t EFIAPI efi_close_event(struct efi_event *event) list_del(&event->queue_link);
list_del(&event->link); - free(event); + efi_free_pool(event); return EFI_EXIT(EFI_SUCCESS); }
@@ -1932,7 +1939,7 @@ static void efi_exit_caches(void) static efi_status_t EFIAPI efi_exit_boot_services(efi_handle_t image_handle, efi_uintn_t map_key) { - struct efi_event *evt; + struct efi_event *evt, *next_event; efi_status_t ret = EFI_SUCCESS;
EFI_ENTRY("%p, %zx", image_handle, map_key); @@ -1971,6 +1978,12 @@ static efi_status_t EFIAPI efi_exit_boot_services(efi_handle_t image_handle, /* Notify variable services */ efi_variables_boot_exit_notify();
+ /* Remove all events except EVT_SIGNAL_VIRTUAL_ADDRESS_CHANGE */ + list_for_each_entry_safe(evt, next_event, &efi_events, link) { + if (evt->type != EVT_SIGNAL_VIRTUAL_ADDRESS_CHANGE) + list_del(&evt->link); + } + board_quiesce_devices();
/* Patch out unsupported runtime function */ diff --git a/lib/efi_loader/efi_runtime.c b/lib/efi_loader/efi_runtime.c index 94765569b6..9f4ba2f977 100644 --- a/lib/efi_loader/efi_runtime.c +++ b/lib/efi_loader/efi_runtime.c @@ -391,8 +391,10 @@ efi_status_t __weak __efi_runtime EFIAPI efi_set_time(struct efi_time *time) */ static bool efi_is_runtime_service_pointer(void *p) { - return p >= (void *)&efi_runtime_services.get_time && - p <= (void *)&efi_runtime_services.query_variable_info; + return (p >= (void *)&efi_runtime_services.get_time && + p <= (void *)&efi_runtime_services.query_variable_info) || + p == (void *)&efi_events.prev || + p == (void *)&efi_events.next; }
/** @@ -577,6 +579,7 @@ static efi_status_t EFIAPI efi_set_virtual_address_map( int n = memory_map_size / descriptor_size; int i; int rt_code_sections = 0; + struct efi_event *event;
EFI_ENTRY("%lx %lx %x %p", memory_map_size, descriptor_size, descriptor_version, virtmap); @@ -610,6 +613,13 @@ static efi_status_t EFIAPI efi_set_virtual_address_map( return EFI_EXIT(EFI_INVALID_PARAMETER); }
+ /* Notify EVT_SIGNAL_VIRTUAL_ADDRESS_CHANGE */ + list_for_each_entry(event, &efi_events, link) { + if (event->notify_function) + EFI_CALL_VOID(event->notify_function( + event, event->notify_context)); + } + /* Rebind mmio pointers */ for (i = 0; i < n; i++) { struct efi_mem_desc *map = (void*)virtmap + -- 2.20.1