efi_selftest: testing read-only variables
The UEFI spec has this sentence:
"Variables that have runtime access but that are not nonvolatile are
read-only data variables once ExitBootServices() is performed."
At least EDK2 therefore treats variable PlatformLangCodes only as read-only
at runtime. Nowhere do we make this variable read-only in U-Boot.
Do not use variable PlatformLangCodes for testing if the read only
attribute of variables is observed before ExitBootServices().
Fixes: 5a24239c951e ("efi_loader: selftest: enable APPEND_WRITE tests")
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
diff --git a/lib/efi_selftest/efi_selftest_variables.c b/lib/efi_selftest/efi_selftest_variables.c
index 02c9d30..5d98c02 100644
--- a/lib/efi_selftest/efi_selftest_variables.c
+++ b/lib/efi_selftest/efi_selftest_variables.c
@@ -21,9 +21,6 @@
static const efi_guid_t guid_vendor1 =
EFI_GUID(0xff629290, 0x1fc1, 0xd73f,
0x8f, 0xb1, 0x32, 0xf9, 0x0c, 0xa0, 0x42, 0xea);
-static const efi_guid_t guid_global =
- EFI_GUID(0x8be4df61, 0x93ca, 0x11d2,
- 0xaa, 0x0d, 0x00, 0xe0, 0x98, 0x03, 0x2b, 0x8c);
/*
* Setup unit test.
@@ -143,14 +140,6 @@
efi_st_error("SetVariable(APPEND_WRITE) with size 0 to non-existent variable returns wrong code\n");
return EFI_ST_FAILURE;
}
- /* Append variable 3 */
- ret = runtime->set_variable(L"PlatformLangCodes", &guid_global,
- EFI_VARIABLE_BOOTSERVICE_ACCESS |
- EFI_VARIABLE_RUNTIME_ACCESS |
- EFI_VARIABLE_APPEND_WRITE,
- 15, v);
- if (ret != EFI_WRITE_PROTECTED)
- efi_st_todo("SetVariable(APPEND_WRITE) to read-only variable returns wrong code\n");
/* Enumerate variables */
boottime->set_mem(&guid, 16, 0);
*varname = 0;