path: root/Documentation
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authorAhmad Fatoum <>2019-10-23 18:55:56 +0200
committerSascha Hauer <>2019-10-24 09:59:09 +0200
commit0ddc47db89b19baf6c085fc86537631126f3ff5f (patch)
treedbf90008f1be8a193cc08b7e26e978db27cd189e /Documentation
parent27ee6010f89b4b2cd1e9e05975c1af2887ef04c5 (diff)
Documentation: efi: emphasize watchdog deactivation on ExitBootServices
The UEFI specification paragraph quoted above notes: > The watchdog timer is only used during boot services. On successful > completion of ExitBootServices() the watchdog timer is disabled. Thus disabling the watchdog is _the_ only proper behavior. Adjust the wording accordingly. Cc: Oleksij Rempel <> Signed-off-by: Ahmad Fatoum <> Reviewed-by: <> Signed-off-by: Sascha Hauer <>
Diffstat (limited to 'Documentation')
1 files changed, 1 insertions, 1 deletions
diff --git a/Documentation/boards/efi.rst b/Documentation/boards/efi.rst
index 2178c9ab4..f04b1d323 100644
--- a/Documentation/boards/efi.rst
+++ b/Documentation/boards/efi.rst
@@ -350,7 +350,7 @@
Current linux kernel (v5.0) will execute ExitBootServices() during the early
boot stage and thus will automatically disable the (U)EFI watchdog. Since it is
-a proper behavior according to the (U)EFI specification, it is impossible to
+the proper behavior according to the (U)EFI specification, it is impossible to
protect full boot chain by using this watchdog only. It is recommended to use
an alternative hardware watchdog, preferably started before the bootloader. If (U)EFI
firmware lacks this feature, the bootloader should be able to start an alternative