9:14 a.m.
With the implementation of Intel NVDIMM DSM overwrite, we are adding unit
test to nfit_test for testing of overwrite operation.
Signed-off-by: Dave Jiang <dave.jiang(a)intel.com>
---
drivers/acpi/nfit/intel.h | 1 +
tools/testing/nvdimm/dimm_devs.c | 2 +
tools/testing/nvdimm/test/nfit.c | 55 ++++++++++++++++++++++++++++++++++++++
3 files changed, 58 insertions(+)
diff --git a/drivers/acpi/nfit/intel.h b/drivers/acpi/nfit/intel.h
index a4e01de966dc..0140d9b6a0b7 100644
--- a/drivers/acpi/nfit/intel.h
+++ b/drivers/acpi/nfit/intel.h
@@ -52,6 +52,7 @@ extern const struct nvdimm_security_ops *intel_security_ops;
#define ND_INTEL_STATUS_INVALID_PASS 11
#define ND_INTEL_STATUS_OVERWRITE_UNSUPPORTED 0x10007
#define ND_INTEL_STATUS_OQUERY_INPROGRESS 0x10007
+#define ND_INTEL_STATUS_OQUERY_SEQUENCE_ERR 0x20007
#define ND_INTEL_SEC_STATE_ENABLED 0x02
#define ND_INTEL_SEC_STATE_LOCKED 0x04
diff --git a/tools/testing/nvdimm/dimm_devs.c b/tools/testing/nvdimm/dimm_devs.c
index de3a22988dc5..3f8ad3d445d2 100644
--- a/tools/testing/nvdimm/dimm_devs.c
+++ b/tools/testing/nvdimm/dimm_devs.c
@@ -29,6 +29,8 @@ ssize_t security_show(struct device *dev,
return sprintf(buf, "locked\n");
case NVDIMM_SECURITY_FROZEN:
return sprintf(buf, "frozen\n");
+ case NVDIMM_SECURITY_OVERWRITE:
+ return sprintf(buf, "overwrite\n");
case NVDIMM_SECURITY_UNSUPPORTED:
default:
return sprintf(buf, "unsupported\n");
diff --git a/tools/testing/nvdimm/test/nfit.c b/tools/testing/nvdimm/test/nfit.c
index e4b560494e0a..c885fe136f42 100644
--- a/tools/testing/nvdimm/test/nfit.c
+++ b/tools/testing/nvdimm/test/nfit.c
@@ -149,6 +149,7 @@ static int dimm_fail_cmd_code[NUM_DCR];
struct nfit_test_sec {
u8 state;
u8 passphrase[32];
+ u64 overwrite_end_time;
} dimm_sec_info[NUM_DCR];
static const struct nd_intel_smart smart_def = {
@@ -1073,6 +1074,50 @@ static int nd_intel_test_cmd_secure_erase(struct nfit_test *t,
return 0;
}
+static int nd_intel_test_cmd_overwrite(struct nfit_test *t,
+ struct nd_intel_overwrite *nd_cmd,
+ unsigned int buf_len, int dimm)
+{
+ struct device *dev = &t->pdev.dev;
+ struct nfit_test_sec *sec = &dimm_sec_info[dimm];
+
+ if ((sec->state & ND_INTEL_SEC_STATE_ENABLED) &&
+ memcmp(nd_cmd->passphrase, sec->passphrase,
+ ND_INTEL_PASSPHRASE_SIZE) != 0) {
+ nd_cmd->status = ND_INTEL_STATUS_INVALID_PASS;
+ dev_dbg(dev, "overwrite: wrong passphrase\n");
+ return 0;
+ }
+
+ memset(sec->passphrase, 0, ND_INTEL_PASSPHRASE_SIZE);
+ sec->state = ND_INTEL_SEC_STATE_OVERWRITE;
+ dev_dbg(dev, "overwrite progressing.\n");
+ sec->overwrite_end_time = get_jiffies_64() + 5 * HZ;
+
+ return 0;
+}
+
+static int nd_intel_test_cmd_query_overwrite(struct nfit_test *t,
+ struct nd_intel_query_overwrite *nd_cmd,
+ unsigned int buf_len, int dimm)
+{
+ struct device *dev = &t->pdev.dev;
+ struct nfit_test_sec *sec = &dimm_sec_info[dimm];
+
+ if (!(sec->state & ND_INTEL_SEC_STATE_OVERWRITE)) {
+ nd_cmd->status = ND_INTEL_STATUS_OQUERY_SEQUENCE_ERR;
+ return 0;
+ }
+
+ if (time_is_before_jiffies64(sec->overwrite_end_time)) {
+ sec->overwrite_end_time = 0;
+ sec->state = 0;
+ dev_dbg(dev, "overwrite is complete\n");
+ } else
+ nd_cmd->status = ND_INTEL_STATUS_OQUERY_INPROGRESS;
+ return 0;
+}
+
static int get_dimm(struct nfit_mem *nfit_mem, unsigned int func)
{
int i;
@@ -1144,6 +1189,14 @@ static int nfit_test_ctl(struct nvdimm_bus_descriptor *nd_desc,
rc = nd_intel_test_cmd_secure_erase(t,
buf, buf_len, i);
break;
+ case NVDIMM_INTEL_OVERWRITE:
+ rc = nd_intel_test_cmd_overwrite(t,
+ buf, buf_len, i - t->dcr_idx);
+ break;
+ case NVDIMM_INTEL_QUERY_OVERWRITE:
+ rc = nd_intel_test_cmd_query_overwrite(t,
+ buf, buf_len, i - t->dcr_idx);
+ break;
case ND_INTEL_ENABLE_LSS_STATUS:
rc = nd_intel_test_cmd_set_lss_status(t,
buf, buf_len);
@@ -2379,6 +2432,8 @@ static void nfit_test0_setup(struct nfit_test *t)
set_bit(NVDIMM_INTEL_UNLOCK_UNIT, &acpi_desc->dimm_cmd_force_en);
set_bit(NVDIMM_INTEL_FREEZE_LOCK, &acpi_desc->dimm_cmd_force_en);
set_bit(NVDIMM_INTEL_SECURE_ERASE, &acpi_desc->dimm_cmd_force_en);
+ set_bit(NVDIMM_INTEL_OVERWRITE, &acpi_desc->dimm_cmd_force_en);
+ set_bit(NVDIMM_INTEL_QUERY_OVERWRITE, &acpi_desc->dimm_cmd_force_en);
}
static void nfit_test1_setup(struct nfit_test *t)