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Remove unused test fields from VbNvStorage

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Confirmed via codesearch that these fields are not used outside of
vboot_reference itself, and the only use inside vboot_reference is one
test which checked that the test error generation itself worked.

BUG=chromium-os:31668
TEST=make && make runtests

Signed-off-by: Randall Spangler <rspangler@chromium.org>
Change-Id: Ic393e126ca2853f7aaff19ffd6fcdbdb1c47689f
Reviewed-on: https://gerrit.chromium.org/gerrit/24895
Reviewed-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Randall Spangler
2012-06-08 12:30:17 -07:00
committed by Gerrit
parent 71b126ba46
commit c0e3742996
7 changed files with 7 additions and 97 deletions
Download Patch File Download Diff File Expand all files Collapse all files

14
firmware/include/vboot_nvstorage.h
View File

@@ -1,4 +1,4 @@
/* Copyright (c) 2011 The Chromium OS Authors. All rights reserved.
/* Copyright (c) 2012 The Chromium OS Authors. All rights reserved.
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
@@ -47,11 +47,6 @@ typedef enum VbNvParam {
VBNV_LOCALIZATION_INDEX,
/* Field reserved for kernel/user-mode use; 32-bit value. */
VBNV_KERNEL_FIELD,
/* Verified boot API function which should generate a test error, if
* error number (below) is non-zero. */
VBNV_TEST_ERROR_FUNC,
/* Verified boot API error to generate for the function, if non-zero. */
VBNV_TEST_ERROR_NUM,
/* Allow booting from USB in developer mode. 0=no, 1=yes. */
VBNV_DEV_BOOT_USB,
/* Only boot Google-signed images in developer mode. 0=no, 1=yes. */
@@ -130,13 +125,6 @@ typedef enum VbNvParam {
#define VBNV_RECOVERY_US_UNSPECIFIED 0xFF
/* Function codes for VBNV_TEST_ERROR_FUNC */
#define VBNV_TEST_ERROR_LOAD_FIRMWARE_SETUP 1
#define VBNV_TEST_ERROR_LOAD_FIRMWARE 2
#define VBNV_TEST_ERROR_LOAD_KERNEL 3
#define VBNV_TEST_ERROR_S3_RESUME 4
/* Initialize the NV storage library. This must be called before any
* other functions in this library. Returns 0 if success, non-zero if
* error.

19
firmware/lib/vboot_firmware.c
View File

@@ -1,4 +1,4 @@
/* Copyright (c) 2011 The Chromium OS Authors. All rights reserved.
/* Copyright (c) 2012 The Chromium OS Authors. All rights reserved.
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*
@@ -42,7 +42,6 @@ int LoadFirmware(VbCommonParams* cparams, VbSelectFirmwareParams* fparams,
uint32_t try_b_count;
uint32_t lowest_version = 0xFFFFFFFF;
uint32_t test_err = 0;
int good_index = -1;
int is_dev;
int index;
@@ -56,22 +55,6 @@ int LoadFirmware(VbCommonParams* cparams, VbSelectFirmwareParams* fparams,
VBDEBUG(("LoadFirmware started...\n"));
/* Handle test errors */
VbNvGet(vnc, VBNV_TEST_ERROR_FUNC, &test_err);
if (VBNV_TEST_ERROR_LOAD_FIRMWARE == test_err) {
/* Get error code */
VbNvGet(vnc, VBNV_TEST_ERROR_NUM, &test_err);
/* Clear test params so we don't repeat the error */
VbNvSet(vnc, VBNV_TEST_ERROR_FUNC, 0);
VbNvSet(vnc, VBNV_TEST_ERROR_NUM, 0);
/* All error codes currently map to simulated error */
if (test_err) {
recovery = VBNV_RECOVERY_RO_TEST_LF;
retval = VBERROR_SIMULATED;
goto LoadFirmwareExit;
}
}
/* Must have a root key from the GBB */
if (!gbb) {
VBDEBUG(("No GBB\n"));

20
firmware/lib/vboot_kernel.c
View File

@@ -1,4 +1,4 @@
/* Copyright (c) 2011 The Chromium OS Authors. All rights reserved.
/* Copyright (c) 2012 The Chromium OS Authors. All rights reserved.
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*
@@ -139,7 +139,6 @@ VbError_t LoadKernel(LoadKernelParams* params) {
uint32_t lowest_version = LOWEST_TPM_VERSION;
int rec_switch, dev_switch;
BootMode boot_mode;
uint32_t test_err = 0;
uint32_t require_official_os = 0;
VbError_t retval = VBERROR_UNKNOWN;
@@ -184,23 +183,6 @@ VbError_t LoadKernel(LoadKernelParams* params) {
shcall->sector_count = params->ending_lba + 1;
shared->lk_call_count++;
/* Handle test errors */
VbNvGet(vnc, VBNV_TEST_ERROR_FUNC, &test_err);
if (VBNV_TEST_ERROR_LOAD_KERNEL == test_err) {
/* Get error code */
VbNvGet(vnc, VBNV_TEST_ERROR_NUM, &test_err);
shcall->test_error_num = (uint8_t)test_err;
/* Clear test params so we don't repeat the error */
VbNvSet(vnc, VBNV_TEST_ERROR_FUNC, 0);
VbNvSet(vnc, VBNV_TEST_ERROR_NUM, 0);
/* All error codes currently map to simulated error */
if (test_err) {
recovery = VBNV_RECOVERY_RW_TEST_LK;
retval = VBERROR_SIMULATED;
goto LoadKernelExit;
}
}
/* Initialization */
blba = params->bytes_per_lba;
kbuf_sectors = KBUF_SIZE / blba;

27
firmware/lib/vboot_nvstorage.c
View File

@@ -1,4 +1,4 @@
/* Copyright (c) 2011 The Chromium OS Authors. All rights reserved.
/* Copyright (c) 2012 The Chromium OS Authors. All rights reserved.
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
@@ -32,11 +32,6 @@
#define DEV_BOOT_USB_MASK 0x01
#define DEV_BOOT_SIGNED_ONLY_MASK 0x02
#define FIRMWARE_FLAGS_OFFSET 5
#define FIRMWARE_TEST_ERR_FUNC_MASK 0x38
#define FIRMWARE_TEST_ERR_FUNC_SHIFT 3
#define FIRMWARE_TEST_ERR_NUM_MASK 0x07
#define KERNEL_FIELD_OFFSET 11
#define CRC_OFFSET 15
@@ -112,15 +107,6 @@ int VbNvGet(VbNvContext* context, VbNvParam param, uint32_t* dest) {
| (raw[KERNEL_FIELD_OFFSET + 3] << 24));
return 0;
case VBNV_TEST_ERROR_FUNC:
*dest = (raw[FIRMWARE_FLAGS_OFFSET] & FIRMWARE_TEST_ERR_FUNC_MASK)
>> FIRMWARE_TEST_ERR_FUNC_SHIFT;
return 0;
case VBNV_TEST_ERROR_NUM:
*dest = raw[FIRMWARE_FLAGS_OFFSET] & FIRMWARE_TEST_ERR_NUM_MASK;
return 0;
case VBNV_DEV_BOOT_USB:
*dest = (raw[DEV_FLAGS_OFFSET] & DEV_BOOT_USB_MASK ? 1 : 0);
return 0;
@@ -200,17 +186,6 @@ int VbNvSet(VbNvContext* context, VbNvParam param, uint32_t value) {
raw[KERNEL_FIELD_OFFSET + 3] = (uint8_t)(value >> 24);
break;
case VBNV_TEST_ERROR_FUNC:
raw[FIRMWARE_FLAGS_OFFSET] &= ~FIRMWARE_TEST_ERR_FUNC_MASK;
raw[FIRMWARE_FLAGS_OFFSET] |= (value << FIRMWARE_TEST_ERR_FUNC_SHIFT)
& FIRMWARE_TEST_ERR_FUNC_MASK;
break;
case VBNV_TEST_ERROR_NUM:
raw[FIRMWARE_FLAGS_OFFSET] &= ~FIRMWARE_TEST_ERR_NUM_MASK;
raw[FIRMWARE_FLAGS_OFFSET] |= (value & FIRMWARE_TEST_ERR_NUM_MASK);
break;
case VBNV_DEV_BOOT_USB:
if (value)
raw[DEV_FLAGS_OFFSET] |= DEV_BOOT_USB_MASK;

10
host/lib/crossystem.c
View File

@@ -1,4 +1,4 @@
/* Copyright (c) 2011 The Chromium OS Authors. All rights reserved.
/* Copyright (c) 2012 The Chromium OS Authors. All rights reserved.
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
@@ -363,10 +363,6 @@ int VbGetSystemPropertyInt(const char* name) {
value = VbGetNvStorage(VBNV_KERNEL_FIELD);
} else if (!strcasecmp(name,"nvram_cleared")) {
value = VbGetNvStorage(VBNV_KERNEL_SETTINGS_RESET);
} else if (!strcasecmp(name,"vbtest_errfunc")) {
value = VbGetNvStorage(VBNV_TEST_ERROR_FUNC);
} else if (!strcasecmp(name,"vbtest_errno")) {
value = VbGetNvStorage(VBNV_TEST_ERROR_NUM);
} else if (!strcasecmp(name,"recovery_request")) {
value = VbGetNvStorage(VBNV_RECOVERY_REQUEST);
} else if (!strcasecmp(name,"dbg_reset")) {
@@ -443,10 +439,6 @@ int VbSetSystemPropertyInt(const char* name, int value) {
if (!strcasecmp(name,"nvram_cleared")) {
/* Can only clear this flag; it's set inside the NV storage library. */
return VbSetNvStorage(VBNV_KERNEL_SETTINGS_RESET, 0);
} else if (!strcasecmp(name,"vbtest_errfunc")) {
return VbSetNvStorage(VBNV_TEST_ERROR_FUNC, value);
} else if (!strcasecmp(name,"vbtest_errno")) {
return VbSetNvStorage(VBNV_TEST_ERROR_NUM, value);
} else if (!strcasecmp(name,"recovery_request")) {
return VbSetNvStorage(VBNV_RECOVERY_REQUEST, value);
} else if (!strcasecmp(name,"dbg_reset")) {

10
tests/vboot_firmware_tests.c
View File

@@ -1,4 +1,4 @@
/* Copyright (c) 2011 The Chromium OS Authors. All rights reserved.
/* Copyright (c) 2012 The Chromium OS Authors. All rights reserved.
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*
@@ -186,14 +186,6 @@ static void TestLoadFirmware(VbError_t expected_retval,
static void LoadFirmwareTest(void) {
uint32_t u;
/* Test error should cause abort */
ResetMocks();
VbNvSet(&vnc, VBNV_TEST_ERROR_FUNC, VBNV_TEST_ERROR_LOAD_FIRMWARE);
VbNvSet(&vnc, VBNV_TEST_ERROR_NUM, 1);
TestLoadFirmware(VBERROR_SIMULATED, VBNV_RECOVERY_RO_TEST_LF,
"Simulated error");
TEST_EQ(shared->firmware_index, 0xFF, "Error means no firmware index");
/* Require GBB */
ResetMocks();
cparams.gbb_data = NULL;

4
tests/vboot_nvstorage_test.c
View File

@@ -1,4 +1,4 @@
/* Copyright (c) 2011 The Chromium OS Authors. All rights reserved.
/* Copyright (c) 2012 The Chromium OS Authors. All rights reserved.
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*
@@ -29,8 +29,6 @@ static VbNvField nvfields[] = {
{VBNV_RECOVERY_REQUEST, 0, 0x42, 0xED, "recovery request"},
{VBNV_LOCALIZATION_INDEX, 0, 0x69, 0xB0, "localization index"},
{VBNV_KERNEL_FIELD, 0, 0x12345678, 0xFEDCBA98, "kernel field"},
{VBNV_TEST_ERROR_FUNC, 0, 1, 7, "verified boot test error func"},
{VBNV_TEST_ERROR_NUM, 0, 3, 6, "verified boot test error number"},
{VBNV_DEV_BOOT_USB, 0, 1, 0, "dev boot usb"},
{VBNV_DEV_BOOT_SIGNED_ONLY, 0, 1, 0, "dev boot custom"},
{0, 0, 0, 0, NULL}