aboutsummaryrefslogtreecommitdiff
path: root/src/security/vboot/vboot_common.h
diff options
context:
space:
mode:
authorPhilipp Deppenwiese <zaolin@das-labor.org>2017-10-17 17:02:29 +0200
committerMartin Roth <martinroth@google.com>2017-10-22 02:14:46 +0000
commitfea2429e254c41b192dd0856966d5f80eb15a07a (patch)
tree40e81b3ca7ee3c1f9985af9a8a24a3a9b21e8700 /src/security/vboot/vboot_common.h
parent9e0d69bf1e0194509108eba23511a12d597ae49e (diff)
security/vboot: Move vboot2 to security kconfig section
This commit just moves the vboot sources into the security directory and fixes kconfig/makefile paths. Fix vboot2 headers Change-Id: Icd87f95640186f7a625242a3937e1dd13347eb60 Signed-off-by: Philipp Deppenwiese <zaolin@das-labor.org> Reviewed-on: https://review.coreboot.org/22074 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Martin Roth <martinroth@google.com>
Diffstat (limited to 'src/security/vboot/vboot_common.h')
-rw-r--r--src/security/vboot/vboot_common.h118
1 files changed, 118 insertions, 0 deletions
diff --git a/src/security/vboot/vboot_common.h b/src/security/vboot/vboot_common.h
new file mode 100644
index 0000000000..8c92f7f131
--- /dev/null
+++ b/src/security/vboot/vboot_common.h
@@ -0,0 +1,118 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2014 Google, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+#ifndef __VBOOT_VBOOT_COMMON_H__
+#define __VBOOT_VBOOT_COMMON_H__
+
+#include <commonlib/region.h>
+#include <stdint.h>
+#include <compiler.h>
+#include <vboot_api.h>
+#include <vboot_struct.h>
+
+/* Locate vboot area by name. Returns 0 on success and -1 on error. */
+int vboot_named_region_device(const char *name, struct region_device *rdev);
+
+/* Like vboot_named_region_device() but provides a RW region device. */
+int vboot_named_region_device_rw(const char *name, struct region_device *rdev);
+
+/*
+ * Function to check if there is a request to enter recovery mode. Returns
+ * reason code if request to enter recovery mode is present, otherwise 0.
+ */
+int vboot_check_recovery_request(void);
+
+/* ========================== VBOOT HANDOFF APIs =========================== */
+/*
+ * The vboot_handoff structure contains the data to be consumed by downstream
+ * firmware after firmware selection has been completed. Namely it provides
+ * vboot shared data as well as the flags from VbInit.
+ */
+struct vboot_handoff {
+ VbInitParams init_params;
+ uint32_t selected_firmware;
+ char shared_data[VB_SHARED_DATA_MIN_SIZE];
+} __packed;
+
+/*
+ * vboot_get_handoff_info returns pointer to the vboot_handoff structure if
+ * available. vboot_handoff is available only after CBMEM comes online. If size
+ * is not NULL, size of the vboot_handoff structure is returned in it.
+ * Returns 0 on success and -1 on error.
+ */
+int vboot_get_handoff_info(void **addr, uint32_t *size);
+
+/*
+ * The following functions read vboot_handoff structure to obtain requested
+ * information. If vboot handoff is not available, 0 is returned by default.
+ * If vboot handoff is available:
+ * Returns 1 for flag if true
+ * Returns 0 for flag if false
+ * Returns value read for other fields
+ */
+int vboot_handoff_skip_display_init(void);
+int vboot_handoff_check_recovery_flag(void);
+int vboot_handoff_check_developer_flag(void);
+int vboot_handoff_get_recovery_reason(void);
+
+/* ============================ VBOOT REBOOT ============================== */
+/*
+ * vboot_reboot handles the reboot requests made by vboot_reference library. It
+ * allows the platform to run any preparation steps before the reboot and then
+ * does a hard reset.
+ */
+void vboot_reboot(void);
+
+/* Allow the platform to do any clean up work when vboot requests a reboot. */
+void vboot_platform_prepare_reboot(void);
+
+/* ============================ VBOOT RESUME ============================== */
+/*
+ * Save the provided hash digest to a secure location to check against in
+ * the resume path. Returns 0 on success, < 0 on error.
+ */
+int vboot_save_hash(void *digest, size_t digest_size);
+
+/*
+ * Retrieve the previously saved hash digest. Returns 0 on success,
+ * < 0 on error.
+ */
+int vboot_retrieve_hash(void *digest, size_t digest_size);
+
+/*
+ * Determine if the platform is resuming from suspend. Returns 0 when
+ * not resuming, > 0 if resuming, and < 0 on error.
+ */
+int vboot_platform_is_resuming(void);
+
+/* ============================= VERSTAGE ================================== */
+/*
+ * Main logic for verified boot. verstage_main() is just the core vboot logic.
+ * If the verstage is a separate stage, it should be entered via main().
+ */
+void verstage_main(void);
+void verstage_mainboard_init(void);
+
+/* Check boot modes */
+#if IS_ENABLED(CONFIG_VBOOT)
+int vboot_developer_mode_enabled(void);
+int vboot_recovery_mode_enabled(void);
+int vboot_recovery_mode_memory_retrain(void);
+#else /* !CONFIG_VBOOT */
+static inline int vboot_developer_mode_enabled(void) { return 0; }
+static inline int vboot_recovery_mode_enabled(void) { return 0; }
+static inline int vboot_recovery_mode_memory_retrain(void) { return 0; }
+#endif
+
+#endif /* __VBOOT_VBOOT_COMMON_H__ */