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authorMattiwatti <mattiwatti@gmail.com>2020-05-28 18:53:20 +0200
committerMattiwatti <mattiwatti@gmail.com>2020-05-28 18:53:20 +0200
commit0256353e4523b96bc314e85486ce3289a5c002a0 (patch)
tree3c2eb2908f5f93f0201a20b7a2a45b1603f8ad62 /Application/Loader/Loader.c
parentb5d03539f7948e5fa9582c8475f821b8b49fbb3b (diff)
Loader: call BmSetMemoryTypeInformationVariablev1.1
Note that BmSetMemoryTypeInformationVariable() is told by the loader that the image being loaded is *not* a boot application, which is a blatant lie. The reason for doing this is to prevent BmSetMemoryTypeInformationVariable() from performing a warm reset of the system due to a change in the memory type info. (Again, and again, and again...) This is an attempt to fix S4 (hibernate) entry/resume issues; see #12.
Diffstat (limited to 'Application/Loader/Loader.c')
1 files changed, 12 insertions, 0 deletions
diff --git a/Application/Loader/Loader.c b/Application/Loader/Loader.c
index eba4f56..d240c5d 100644
--- a/Application/Loader/Loader.c
+++ b/Application/Loader/Loader.c
@@ -36,6 +36,14 @@ STATIC CHAR16* mDriverPaths[] = {
};
+extern
+EFI_STATUS
+EFIAPI
+BmSetMemoryTypeInformationVariable(
+ IN BOOLEAN Boot
+ );
+
+
STATIC
BOOLEAN
EFIAPI
@@ -511,6 +519,10 @@ TryBootOptionsInOrder(
// So again, DO NOT call this abortion:
//BmSetMemoryTypeInformationVariable((BOOLEAN)((BootOptions[Index].Attributes & LOAD_OPTION_CATEGORY) == LOAD_OPTION_CATEGORY_BOOT));
+ //
+ // OK, maybe call it after all, but pretend this is *not* a boot entry, so that the system will not go into an infinite boot (reset) loop.
+ // This may or may not fix hibernation related issues (S4 entry/resume). See https://github.com/Mattiwatti/EfiGuard/issues/12
+ BmSetMemoryTypeInformationVariable(FALSE);
// Ensure the image path is connected end-to-end by Dispatch()ing any required drivers through DXE services
EfiBootManagerConnectDevicePath(BootOptions[Index].FilePath, NULL);
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