diff options
Diffstat (limited to 'firmware/2lib/2kernel.c')
| -rw-r--r-- | firmware/2lib/2kernel.c | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/firmware/2lib/2kernel.c b/firmware/2lib/2kernel.c index 5b18cad5..350a1bf6 100644 --- a/firmware/2lib/2kernel.c +++ b/firmware/2lib/2kernel.c @@ -197,3 +197,22 @@ vb2_error_t vb2api_kernel_phase1(struct vb2_context *ctx) return VB2_SUCCESS; } + +vb2_error_t vb2api_kernel_finalize(struct vb2_context *ctx) +{ + vb2_gbb_flags_t gbb_flags = vb2api_gbb_get_flags(ctx); + + /* + * Disallow booting to kernel when NO_BOOT flag is set, except when + * GBB flag disables software sync. + */ + if (!(gbb_flags & VB2_GBB_FLAG_DISABLE_EC_SOFTWARE_SYNC) + && (ctx->flags & VB2_CONTEXT_EC_SYNC_SUPPORTED) + && (ctx->flags & VB2_CONTEXT_NO_BOOT)) { + VB2_DEBUG("Blocking escape from NO_BOOT mode.\n"); + vb2api_fail(ctx, VB2_RECOVERY_ESCAPE_NO_BOOT, 0); + return VB2_ERROR_ESCAPE_NO_BOOT; + } + + return VB2_SUCCESS; +} |