To understand what is happening in OpenProtocol or LocateProtocol it is necessary to know the protocol interface GUID. Let's write a debug message.
Cc: Rob Clark robdclark@gmail.com Signed-off-by: Heinrich Schuchardt xypron.glpk@gmx.de --- v4: use %pUl format string correct indention of output v3: commit message changed v2: fix typo in commit message --- include/efi_loader.h | 8 ++++++++ lib/efi_loader/efi_boottime.c | 11 +++++++++++ 2 files changed, 19 insertions(+)
diff --git a/include/efi_loader.h b/include/efi_loader.h index 870854fb61..5b20af808b 100644 --- a/include/efi_loader.h +++ b/include/efi_loader.h @@ -17,6 +17,7 @@
int __efi_entry_check(void); int __efi_exit_check(void); +const char *__efi_nesting(void); const char *__efi_nesting_inc(void); const char *__efi_nesting_dec(void);
@@ -64,6 +65,13 @@ const char *__efi_nesting_dec(void); debug("%sEFI: Return From: %s\n", __efi_nesting_dec(), #exp); \ } while(0)
+/* + * Write GUID + */ +#define EFI_PRINT_GUID(txt, guid) ({ \ + debug("%sEFI: %s %pUl\n", __efi_nesting(), txt, guid); \ + }) + extern struct efi_runtime_services efi_runtime_services; extern struct efi_system_table systab;
diff --git a/lib/efi_loader/efi_boottime.c b/lib/efi_loader/efi_boottime.c index 5aeaeeca75..6af033458b 100644 --- a/lib/efi_loader/efi_boottime.c +++ b/lib/efi_loader/efi_boottime.c @@ -112,6 +112,11 @@ static const char *indent_string(int level) return &indent[max - level]; }
+const char *__efi_nesting(void) +{ + return indent_string(nesting_level); +} + const char *__efi_nesting_inc(void) { return indent_string(nesting_level++); @@ -1163,6 +1170,8 @@ static efi_status_t EFIAPI efi_locate_protocol(efi_guid_t *protocol, if (!protocol || !protocol_interface) return EFI_EXIT(EFI_INVALID_PARAMETER);
+ EFI_PRINT_GUID("protocol", protocol); + list_for_each(lhandle, &efi_obj_list) { struct efi_object *efiobj;
@@ -1366,6 +1375,8 @@ static efi_status_t EFIAPI efi_open_protocol( goto out; }
+ EFI_PRINT_GUID("protocol", protocol); + switch (attributes) { case EFI_OPEN_PROTOCOL_BY_HANDLE_PROTOCOL: case EFI_OPEN_PROTOCOL_GET_PROTOCOL: