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authorAKASHI Takahiro <takahiro.akashi@linaro.org>2019-06-04 15:52:11 +0900
committerHeinrich Schuchardt <xypron.glpk@gmx.de>2019-06-04 23:56:14 +0200
commit4b27a761321fd17536e02644d0ec0373150eb570 (patch)
tree224a010c685907cb82299ccc5d93f756cf3f00e9 /cmd
parentf658c2e190c3a45a94317f27ab53f2f7d8067d36 (diff)
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cmd: env: add -nv option for UEFI non-volatile variable
With this option, -nv, at "setenv -e" command, a variable will be defined as non-volatile. Signed-off-by: AKASHI Takahiro <takahiro.akashi@linaro.org> Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Diffstat (limited to 'cmd')
-rw-r--r--cmd/nvedit.c3
-rw-r--r--cmd/nvedit_efi.c15
2 files changed, 14 insertions, 4 deletions
diff --git a/cmd/nvedit.c b/cmd/nvedit.c
index 24a6cf7..52c242b 100644
--- a/cmd/nvedit.c
+++ b/cmd/nvedit.c
@@ -1344,8 +1344,9 @@ U_BOOT_CMD_COMPLETE(
setenv, CONFIG_SYS_MAXARGS, 0, do_env_set,
"set environment variables",
#if defined(CONFIG_CMD_NVEDIT_EFI)
- "-e name [value ...]\n"
+ "-e [-nv] name [value ...]\n"
" - set UEFI variable 'name' to 'value' ...'\n"
+ " 'nv' option makes the variable non-volatile\n"
" - delete UEFI variable 'name' if 'value' not specified\n"
#endif
"setenv [-f] name value ...\n"
diff --git a/cmd/nvedit_efi.c b/cmd/nvedit_efi.c
index ff8eaa1..60a8ac8 100644
--- a/cmd/nvedit_efi.c
+++ b/cmd/nvedit_efi.c
@@ -349,6 +349,7 @@ int do_env_set_efi(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
u16 *var_name16 = NULL, *p;
size_t len;
efi_guid_t guid;
+ u32 attributes;
efi_status_t ret;
if (argc == 1)
@@ -362,6 +363,16 @@ int do_env_set_efi(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
return CMD_RET_FAILURE;
}
+ attributes = EFI_VARIABLE_BOOTSERVICE_ACCESS |
+ EFI_VARIABLE_RUNTIME_ACCESS;
+ if (!strcmp(argv[1], "-nv")) {
+ attributes |= EFI_VARIABLE_NON_VOLATILE;
+ argc--;
+ argv++;
+ if (argc == 1)
+ return CMD_RET_SUCCESS;
+ }
+
var_name = argv[1];
if (argc == 2) {
/* delete */
@@ -391,9 +402,7 @@ int do_env_set_efi(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
utf8_utf16_strncpy(&p, var_name, len + 1);
guid = efi_global_variable_guid;
- ret = EFI_CALL(efi_set_variable(var_name16, &guid,
- EFI_VARIABLE_BOOTSERVICE_ACCESS |
- EFI_VARIABLE_RUNTIME_ACCESS,
+ ret = EFI_CALL(efi_set_variable(var_name16, &guid, attributes,
size, value));
if (ret == EFI_SUCCESS) {
ret = CMD_RET_SUCCESS;