diff options
| -rw-r--r-- | MdeModulePkg/Universal/SetupBrowserDxe/IfrParse.c | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/MdeModulePkg/Universal/SetupBrowserDxe/IfrParse.c b/MdeModulePkg/Universal/SetupBrowserDxe/IfrParse.c index d3b1186427..e9cdea0e8b 100644 --- a/MdeModulePkg/Universal/SetupBrowserDxe/IfrParse.c +++ b/MdeModulePkg/Universal/SetupBrowserDxe/IfrParse.c @@ -452,6 +452,42 @@ IntializeBrowserStorage ( }
/**
+ Check whether exist device path info in the ConfigHdr string.
+
+ @param String UEFI configuration string
+
+ @retval TRUE Device Path exist.
+ @retval FALSE Not exist device path info.
+
+**/
+BOOLEAN
+IsDevicePathExist (
+ IN EFI_STRING String
+ )
+{
+ UINTN Length;
+ EFI_STRING PathHdr;
+
+ for (; (*String != 0 && StrnCmp (String, L"PATH=", StrLen (L"PATH=")) != 0); String++);
+ if (*String == 0) {
+ return FALSE;
+ }
+
+ String += StrLen (L"PATH=");
+ if (*String == 0) {
+ return FALSE;
+ }
+ PathHdr = String;
+
+ for (Length = 0; *String != 0 && *String != L'&'; String++, Length++);
+ if (((Length + 1) / 2) < sizeof (EFI_DEVICE_PATH_PROTOCOL)) {
+ return FALSE;
+ }
+
+ return TRUE;
+}
+
+/**
Allocate a FORMSET_STORAGE data structure and insert to FormSet Storage List.
@param FormSet Pointer of the current FormSet
@@ -528,6 +564,17 @@ CreateStorage ( InitializeConfigHdr (FormSet, BrowserStorage);
BrowserStorage->Initialized = FALSE;
+ } else {
+ if ((StorageType == EFI_HII_VARSTORE_EFI_VARIABLE_BUFFER) &&
+ (FormSet->DriverHandle != NULL) &&
+ (!IsDevicePathExist (BrowserStorage->ConfigHdr))) {
+ //
+ // If this storage not has device path info but new formset has,
+ // update the device path info.
+ //
+ FreePool (BrowserStorage->ConfigHdr);
+ InitializeConfigHdr (FormSet, BrowserStorage);
+ }
}
Storage->BrowserStorage = BrowserStorage;
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