slot_metadata: add verity_corrupted field
In rootfs context, the verity mode must be supplied by the bootloader
to the kernel. This patch creates a new verity_corrupted field in the
slot metadata structure to remind that this slot is corrupted from a
dm-verity point of view.
If the bootloader receives the "dm-verity device corrupted" reboot
target, it should set this bit to 1. If this bit value is 1, the
bootloader should set the veritymode to "eio".
Change-Id: I9335a39d7d009200318c58c53a3139d542788a9b
Signed-off-by: Jeremy Compostella <jeremy.compostella@intel.com>
diff --git a/bootloader.h b/bootloader.h
index 92c74f0..de53518 100644
--- a/bootloader.h
+++ b/bootloader.h
@@ -74,8 +74,11 @@
uint8_t tries_remaining : 3;
// 1 if this slot has booted successfully, 0 otherwise.
uint8_t successful_boot : 1;
+ // 1 if this slot is corrupted from a dm-verity corruption, 0
+ // otherwise.
+ uint8_t verity_corrupted : 1;
// Reserved for further use.
- uint8_t reserved;
+ uint8_t reserved : 7;
} __attribute__((packed));
/* Bootloader Control AB