Patch set updated for coreboot: 348af75 Add a KEEP_BOOT_COUNT Kconfig option.

[Denis Carikli]

Denis Carikli ([e-mail]) just uploaded a new patch set to gerrit, which you can find at http://review.coreboot.org/3990

-gerrit

commit 348af75d870e82700d43544cf9ce957300762ae9
Author: Denis 'GNUtoo' Carikli 
Date:   Mon Oct 21 01:56:47 2013 +0200

Add a KEEP_BOOT_COUNT Kconfig option.

The use case of that option is to inform coreboot (trough the nvram) at the
      next boot, that the computer could not fully boot to boot to an usable state.
      In that case, the boot count is incremented by one.

Previously there was no way to tell coreboot that the computer really booted
      successfully, because it was assumed that if set_boot_successful was called
      in ramstage, then the computer would have booted successfully.

However many things can go wrong after that point, for instance the payload
      could fail to boot, or the operating system's kernel could fail to boot too,
      due to the wrong configurations passed to it by coreboot and the payload.

Change-Id: I01af053455eb6bd2f7a4f9d37e8c234ba8d55250
    Signed-off-by: Denis 'GNUtoo' Carikli 
---
 src/Kconfig             | 8 ++++++++
 src/lib/fallback_boot.c | 3 +++
 2 files changed, 11 insertions(+)

diff --git a/src/Kconfig b/src/Kconfig
index 10f8c18..ac7b610 100644
--- a/src/Kconfig
+++ b/src/Kconfig
@@ -47,6 +47,14 @@ config CBFS_PREFIX
      Select the prefix to all files put into the image. It's "fallback"
      by default, "normal" is a common alternative.

+config KEEP_BOOT_COUNT
+	bool "Keep boot count"
+	default n
+	depends on PC80_SYSTEM
+	help
+	  If enabled, the boot count is not reset anymore in the ramstage.
+	  This delegates that task to the software running after the ramstage.
+
 config ALT_CBFS_LOAD_PAYLOAD
    bool "Use alternative cbfs_load_payload() implementation."
    default n
diff --git a/src/lib/fallback_boot.c b/src/lib/fallback_boot.c
index a34090e..b1c24f4 100644
--- a/src/lib/fallback_boot.c
+++ b/src/lib/fallback_boot.c
@@ -17,8 +17,11 @@ void boot_successful(void)

vbe_textmode_console();
 #endif
+
+#if !CONFIG_KEEP_BOOT_COUNT
    /* Remember this was a successful boot */
    set_boot_successful();
+#endif

/* turn off the boot watchdog */
    watchdog_off();