48 lines
1.7 KiB
Diff
48 lines
1.7 KiB
Diff
|
From f2aeff31924f6d070d7f8b87550dc6d9820531ad Mon Sep 17 00:00:00 2001
|
||
|
|
From: Gerd Hoffmann <kraxel@redhat.com>
|
||
|
|
Date: Tue, 16 Jan 2024 18:11:04 +0100
|
||
|
|
Subject: [PATCH 15/18] OvmfPkg/VirtNorFlashDxe: ValidateFvHeader: unwritten
|
||
|
|
state is EOL too
|
||
|
|
|
||
|
|
RH-Author: Gerd Hoffmann <None>
|
||
|
|
RH-MergeRequest: 43: OvmfPkg/VirtNorFlashDxe backport
|
||
|
|
RH-Jira: RHEL-17587
|
||
|
|
RH-Acked-by: Laszlo Ersek <lersek@redhat.com>
|
||
|
|
RH-Commit: [17/20] 37220c700ea816c815e0612031e10b7d466b71a2
|
||
|
|
|
||
|
|
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 <kraxel@redhat.com>
|
||
|
|
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
|
||
|
|
Message-Id: <20240116171105.37831-6-kraxel@redhat.com>
|
||
|
|
(cherry picked from commit 735d0a5e2e25c1577bf9bea7826da937ca38169d)
|
||
|
|
---
|
||
|
|
OvmfPkg/VirtNorFlashDxe/VirtNorFlashFvb.c | 5 +++++
|
||
|
|
1 file changed, 5 insertions(+)
|
||
|
|
|
||
|
|
diff --git a/OvmfPkg/VirtNorFlashDxe/VirtNorFlashFvb.c b/OvmfPkg/VirtNorFlashDxe/VirtNorFlashFvb.c
|
||
|
|
index acc4a413ee..f8e71f88c1 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
|
||
|
|
--
|
||
|
|
2.41.0
|
||
|
|
|