diff options
Diffstat (limited to 'firmware/lib/vboot_api_kernel.c')
| -rw-r--r-- | firmware/lib/vboot_api_kernel.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/firmware/lib/vboot_api_kernel.c b/firmware/lib/vboot_api_kernel.c index fff30561..c3362789 100644 --- a/firmware/lib/vboot_api_kernel.c +++ b/firmware/lib/vboot_api_kernel.c @@ -1082,6 +1082,7 @@ VbError_t VbSelectAndLoadKernel(VbCommonParams *cparams, VbError_t retval = VBERROR_SUCCESS; LoadKernelParams p; uint32_t tpm_status = 0; + uint32_t battery_cutoff = 0; /* Start timer */ shared->timer_vb_select_and_load_kernel_enter = VbExGetTimer(); @@ -1138,6 +1139,17 @@ VbError_t VbSelectAndLoadKernel(VbCommonParams *cparams, if (retval != VBERROR_SUCCESS) goto VbSelectAndLoadKernel_exit; + /* Check if we need to cut-off battery. This must be done after EC + * firmware updating and before kernel started. */ + VbNvGet(&vnc, VBNV_BATTERY_CUTOFF_REQUEST, &battery_cutoff); + if (battery_cutoff) { + VBDEBUG(("Request to cut-off battery\n")); + VbNvSet(&vnc, VBNV_BATTERY_CUTOFF_REQUEST, 0); + VbExEcBatteryCutOff(); + retval = VBERROR_SHUTDOWN_REQUESTED; + goto VbSelectAndLoadKernel_exit; + } + /* Read kernel version from the TPM. Ignore errors in recovery mode. */ tpm_status = RollbackKernelRead(&shared->kernel_version_tpm); if (0 != tpm_status) { |