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authorOfir Bitton <obitton@habana.ai>2022-08-03 17:16:56 +0300
committerOded Gabbay <ogabbay@kernel.org>2022-09-18 13:29:52 +0300
commit6457271f64a2b6674b11aebb2888427eb4558c22 (patch)
tree56828cd8f49f74cf17c6126dbad9b60dc9b2a0d9 /drivers/misc/habanalabs
parent107a5bcc0b34c0f4f6c8b771321bf3a4e095335d (diff)
downloadlinux-6457271f64a2b6674b11aebb2888427eb4558c22.tar.xz
habanalabs: expose device security status through sysfs
In order for the user to know if he is running on a secured device or not, a sysfs node is added. Signed-off-by: Ofir Bitton <obitton@habana.ai> Reviewed-by: Oded Gabbay <ogabbay@kernel.org> Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
Diffstat (limited to 'drivers/misc/habanalabs')
-rw-r--r--drivers/misc/habanalabs/common/sysfs.c10
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/misc/habanalabs/common/sysfs.c b/drivers/misc/habanalabs/common/sysfs.c
index 6c5271f01160..36e9814139d1 100644
--- a/drivers/misc/habanalabs/common/sysfs.c
+++ b/drivers/misc/habanalabs/common/sysfs.c
@@ -375,6 +375,14 @@ out:
return max_size;
}
+static ssize_t security_enabled_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct hl_device *hdev = dev_get_drvdata(dev);
+
+ return sprintf(buf, "%d\n", hdev->asic_prop.fw_security_enabled);
+}
+
static DEVICE_ATTR_RO(armcp_kernel_ver);
static DEVICE_ATTR_RO(armcp_ver);
static DEVICE_ATTR_RO(cpld_ver);
@@ -393,6 +401,7 @@ static DEVICE_ATTR_RO(status);
static DEVICE_ATTR_RO(thermal_ver);
static DEVICE_ATTR_RO(uboot_ver);
static DEVICE_ATTR_RO(fw_os_ver);
+static DEVICE_ATTR_RO(security_enabled);
static struct bin_attribute bin_attr_eeprom = {
.attr = {.name = "eeprom", .mode = (0444)},
@@ -417,6 +426,7 @@ static struct attribute *hl_dev_attrs[] = {
&dev_attr_thermal_ver.attr,
&dev_attr_uboot_ver.attr,
&dev_attr_fw_os_ver.attr,
+ &dev_attr_security_enabled.attr,
NULL,
};