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Return more meaningful error codes from vboot entry points

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This also fixes one place where TPM error codes were getting lost.

BUG=chromium-os:18132
TEST=make && make runtests

Change-Id: I83c74e1103805f166d1dc7448be7d67bd46d15b3
Reviewed-on: http://gerrit.chromium.org/gerrit/4659
Tested-by: Randall Spangler <rspangler@chromium.org>
Reviewed-by: Randall Spangler <rspangler@chromium.org>
This commit is contained in:
Randall Spangler
2011-07-25 09:19:58 -07:00
parent 22e7bb2b8e
commit 1cf77cda5e
4 changed files with 114 additions and 52 deletions
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66
firmware/include/vboot_api.h
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@@ -31,15 +31,67 @@
/* Error codes */
/* Functions which return an error all return this type. This is a
* 32-bit value rather than an int so it's consistent across UEFI,
* which is 32-bit during PEI and 64-bit during DXE/BDS. */
* 32-bit value rather than an int so it's consistent across UEFI,
* which is 32-bit during PEI and 64-bit during DXE/BDS. */
typedef uint32_t VbError_t;
/* No error; function completed successfully. */
#define VBERROR_SUCCESS 0
/* Errors are non-zero, but differ between functions. For example,
* the TPM functions may pass through TPM error codes, some of which
* may be recoverable. */
/* Predefined error numbers. */
enum VbErrorPredefined_t {
/* No error; function completed successfully. */
VBERROR_SUCCESS = 0,
/* Errors are non-zero, but differ between functions. For example,
* the TPM functions may pass through TPM error codes, some of which
* may be recoverable. */
/* The verified boot entry points VbInit(), VbSelectFirmware(),
* VbSelectAndLoadKernel() may return the following errors. */
/* Unknown error */
VBERROR_UNKNOWN = 0x10000,
/* Unable to initialize shared data */
VBERROR_INIT_SHARED_DATA = 0x10001,
/* Error resuming TPM during a S3 resume */
VBERROR_TPM_S3_RESUME = 0x10002,
/* LoadFirmware() failed to find a valid firmware */
VBERROR_LOAD_FIRMWARE = 0x10003,
/* Unable to write firmware versions to TPM */
VBERROR_TPM_WRITE_FIRMWARE = 0x10004,
/* Unable to lock firmware versions in TPM */
VBERROR_TPM_LOCK_FIRMWARE = 0x10005,
/* Unable to set boot mode state in TPM */
VBERROR_TPM_SET_BOOT_MODE_STATE = 0x10006,
/* TPM requires reboot */
VBERROR_TPM_REBOOT_REQUIRED = 0x10007,
/* Unable to set up TPM */
VBERROR_TPM_FIRMWARE_SETUP = 0x10008,
/* Unable to read kernel versions from TPM */
VBERROR_TPM_READ_KERNEL = 0x10009,
/* Attempted to load developer-only firmware when developer switch was off */
VBERROR_DEV_FIRMWARE_SWITCH_MISMATCH = 0x1000A,
/* Unable to write kernel versions to TPM */
VBERROR_TPM_WRITE_KERNEL = 0x1000B,
/* Unable to lock kernel versions in TPM */
VBERROR_TPM_LOCK_KERNEL = 0x1000C,
/* Calling firmware requested shutdown via VbExIsShutdownRequested() */
VBERROR_SHUTDOWN_REQUESTED = 0x1000D,
/* Unable to find a suitable boot device on which to look for a kernel */
VBERROR_NO_DISK_FOUND = 0x1000E,
/* No OS kernel found on any boot device */
VBERROR_NO_KERNEL_FOUND = 0x1000F,
/* All OS kernels found were invalid (corrupt, improperly signed, etc.) */
VBERROR_INVALID_KERNEL_FOUND = 0x10010,
/* LoadKernel() requested recovery mode */
VBERROR_LOAD_KERNEL_RECOVERY = 0x10011,
/* Other error inside LoadKernel() */
VBERROR_LOAD_KERNEL = 0x10012,
/* Invalid Google binary block */
VBERROR_INVALID_GBB = 0x10013,
/* Invalid bitmap volume */
VBERROR_INVALID_BMPFV = 0x10014,
/* Invalid screen index */
VBERROR_INVALID_SCREEN_INDEX = 0x10015
};
/*****************************************************************************/