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| author | Vadim Bendebury <vbendeb@chromium.org> | 2015-03-25 14:50:02 -0700 |
|---|---|---|
| committer | ChromeOS Commit Bot <chromeos-commit-bot@chromium.org> | 2015-03-26 01:13:41 +0000 |
| commit | 52ec0758968d779e3bbacfa0ac988af0624fb274 (patch) | |
| tree | 2a236c60a7de71134d2a95d76995a2bb42ab5f89 | |
| parent | 39392528f4988df03217f7b513e92ed62f5c3211 (diff) | |
| download | vboot-stabilize-6915.B.tar.gz | |
crossystem: provide a way to clear wipeout requeststabilize-6915.B
For test purposes it should be possible to clear the wipeout request
raised by firmware.
BRANCH=none
BUG=chrome-os-partner:36059
TEST=verified that crossystem wipeout_request=0 changes the bit from 1
to 0, and wipeout_request=1 does not change it from 0 to 1.
Change-Id: Ic45ec03ed3e40e6fee4244804b8c231ee88af95b
Signed-off-by: Vadim Bendebury <vbendeb@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/262466
Reviewed-by: Randall Spangler <rspangler@chromium.org>
| -rw-r--r-- | firmware/lib/vboot_nvstorage.c | 7 | ||||
| -rw-r--r-- | host/lib/crossystem.c | 3 | ||||
| -rw-r--r-- | utility/crossystem.c | 2 |
3 files changed, 11 insertions, 1 deletions
diff --git a/firmware/lib/vboot_nvstorage.c b/firmware/lib/vboot_nvstorage.c index 9d99b1c7..af24fac1 100644 --- a/firmware/lib/vboot_nvstorage.c +++ b/firmware/lib/vboot_nvstorage.c @@ -366,6 +366,13 @@ int VbNvSet(VbNvContext *context, VbNvParam param, uint32_t value) raw[BOOT2_OFFSET] |= (uint8_t)value << BOOT2_PREV_RESULT_SHIFT; break; + case VBNV_FW_REQ_WIPEOUT: + if (value) + raw[HEADER_OFFSET] |= HEADER_WIPEOUT; + else + raw[HEADER_OFFSET] &= ~HEADER_WIPEOUT; + break; + default: return 1; } diff --git a/host/lib/crossystem.c b/host/lib/crossystem.c index d97effa4..00f4f1d2 100644 --- a/host/lib/crossystem.c +++ b/host/lib/crossystem.c @@ -617,6 +617,9 @@ int VbSetSystemPropertyInt(const char* name, int value) { return VbSetNvStorage(VBNV_FW_TRY_COUNT, value); } else if (!strcasecmp(name,"oprom_needed")) { return VbSetNvStorage(VBNV_OPROM_NEEDED, value); + } else if (!strcasecmp(name,"wipeout_request")) { + /* Can only clear this flag, set only by firmware. */ + return VbSetNvStorage(VBNV_FW_REQ_WIPEOUT, 0); } else if (!strcasecmp(name,"backup_nvram_request")) { /* Best-effort only, since it requires firmware and TPM support. */ return VbSetNvStorage(VBNV_BACKUP_NVRAM_REQUEST, value); diff --git a/utility/crossystem.c b/utility/crossystem.c index 3eaeaae0..57eab2fc 100644 --- a/utility/crossystem.c +++ b/utility/crossystem.c @@ -95,7 +95,7 @@ const Param sys_param_list[] = { {"vdat_lkdebug", IS_STRING|NO_PRINT_ALL, "LoadKernel() debug data (not in print-all)"}, {"vdat_timers", IS_STRING, "Timer values from VbSharedData"}, - {"wipeout_request", 0, "Firmware requested factory reset (wipeout)"}, + {"wipeout_request", CAN_WRITE, "Firmware requested factory reset (wipeout)"}, {"wpsw_boot", 0, "Firmware write protect hardware switch position at boot"}, {"wpsw_cur", 0, "Firmware write protect hardware switch current position"}, /* Terminate with null name */ |