diff options
Diffstat (limited to 'src/vboot/vboot_loader.c')
| -rw-r--r-- | src/vboot/vboot_loader.c | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/src/vboot/vboot_loader.c b/src/vboot/vboot_loader.c index 7395fd7d92..207aadaac7 100644 --- a/src/vboot/vboot_loader.c +++ b/src/vboot/vboot_loader.c @@ -17,6 +17,7 @@ #include <cbfs.h> #include <cbmem.h> #include <console/console.h> +#include <ec/google/chromeec/ec.h> #include <rmodule.h> #include <rules.h> #include <string.h> @@ -89,9 +90,29 @@ int vb2_logic_executed(void) static void vboot_prepare(void) { if (verification_should_run()) { + /* + * Note that this path isn't taken when + * CONFIG_RETURN_FROM_VERSTAGE is employed. + */ verstage_main(); car_set_var(vboot_executed, 1); vb2_save_recovery_reason_vbnv(); + + /* + * Avoid double memory retrain when the EC is running RW code + * and a recovery request came in through an EC host event. The + * double retrain happens because the EC won't be rebooted + * until kernel verification notices the EC isn't running RO + * code which is after memory training. Therefore, reboot the + * EC after we've saved the potential recovery request so it's + * not lost. Lastly, only perform this sequence on x86 + * platforms since those are the ones that currently do a + * costly memory training in recovery mode. + */ + if (IS_ENABLED(CONFIG_EC_GOOGLE_CHROMEEC) && + IS_ENABLED(CONFIG_ARCH_X86)) + google_chromeec_early_init(); + } else if (verstage_should_load()) { struct cbfsf file; struct prog verstage = |