It is possible to find variable entries with State being 0xff, i.e. not
updated since flash block erase. This indicates the variable driver
could not complete the header write while appending a new entry, and
therefore State was not set to VAR_HEADER_VALID_ONLY.
This can only happen at the end of the variable list, so treat this as
additional "end of variable list" condition.
Signed-off-by: Gerd Hoffmann <kra...@redhat.com>
---
OvmfPkg/VirtNorFlashDxe/VirtNorFlashFvb.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/OvmfPkg/VirtNorFlashDxe/VirtNorFlashFvb.c
b/OvmfPkg/VirtNorFlashDxe/VirtNorFlashFvb.c
index 8fcd999ac6df..c8b5e0be1379 100644
--- a/OvmfPkg/VirtNorFlashDxe/VirtNorFlashFvb.c
+++ b/OvmfPkg/VirtNorFlashDxe/VirtNorFlashFvb.c
@@ -302,6 +302,11 @@ ValidateFvHeader (
break;
}
+ if (VarHeader->State == 0xff) {
+ DEBUG ((DEBUG_INFO, "%a: end of var list (unwritten state)\n",
__func__));
+ break;
+ }
+
VarName = NULL;
switch (VarHeader->State) {
// usage: State = VAR_HEADER_VALID_ONLY
--
2.43.0
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