Expose the locality used by the kernel to sysfs.
Signed-off-by: Ross Philipson <ross.philipson@xxxxxxxxxx>
Signed-off-by: Jarkko Sakkinen <jarkko@xxxxxxxxxx>
---
drivers/char/tpm/tpm-sysfs.c | 10 ++++++++++
1 file changed, 10 insertions(+)
diff --git a/drivers/char/tpm/tpm-sysfs.c b/drivers/char/tpm/tpm-sysfs.c
index 94231f052ea7..2da5857e223b 100644
--- a/drivers/char/tpm/tpm-sysfs.c
+++ b/drivers/char/tpm/tpm-sysfs.c
@@ -309,6 +309,14 @@ static ssize_t tpm_version_major_show(struct device *dev,
}
static DEVICE_ATTR_RO(tpm_version_major);
+static ssize_t locality_show(struct device *dev, struct device_attribute *attr, char *buf)
+{
+ struct tpm_chip *chip = to_tpm_chip(dev);
+
+ return sprintf(buf, "%u\n", chip->kernel_locality);
+}
+static DEVICE_ATTR_RO(locality);
+
#ifdef CONFIG_TCG_TPM2_HMAC
static ssize_t null_name_show(struct device *dev, struct device_attribute *attr,
char *buf)
@@ -336,6 +344,7 @@ static struct attribute *tpm1_dev_attrs[] = {
&dev_attr_durations.attr,
&dev_attr_timeouts.attr,
&dev_attr_tpm_version_major.attr,
+ &dev_attr_locality.attr,
NULL,
};
@@ -344,6 +353,7 @@ static struct attribute *tpm2_dev_attrs[] = {
#ifdef CONFIG_TCG_TPM2_HMAC
&dev_attr_null_name.attr,
#endif
+ &dev_attr_locality.attr,
NULL
};
--
2.39.3
