diff options
| author | Steffen Eiden <[email protected]> | 2024-10-24 08:26:38 +0200 |
|---|---|---|
| committer | Heiko Carstens <[email protected]> | 2024-10-29 11:17:17 +0100 |
| commit | f00469a6420e8682306a3056699ade89fced7c05 (patch) | |
| tree | 8b612b74eed0987e5c3c7f01d279276304b8ca61 /arch/s390/kernel/uv.c | |
| parent | d35613718784937a7222266cb512ead1333cd430 (diff) | |
s390/uv: Retrieve UV secrets sysfs support
Reflect the updated content in the query information UVC to the sysfs at
/sys/firmware/query
* new UV-query sysfs entry for the maximum number of retrievable
secrets the UV can store for one secure guest.
* new UV-query sysfs entry for the maximum number of association
secrets the UV can store for one secure guest.
* max_secrets contains the sum of max association and max retrievable
secrets.
Reviewed-by: Christoph Schlameuss <[email protected]>
Signed-off-by: Steffen Eiden <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Janosch Frank <[email protected]>
Signed-off-by: Heiko Carstens <[email protected]>
Diffstat (limited to 'arch/s390/kernel/uv.c')
| -rw-r--r-- | arch/s390/kernel/uv.c | 24 |
1 files changed, 23 insertions, 1 deletions
diff --git a/arch/s390/kernel/uv.c b/arch/s390/kernel/uv.c index 4fbe63f59ebd..6f9654a191ad 100644 --- a/arch/s390/kernel/uv.c +++ b/arch/s390/kernel/uv.c @@ -696,12 +696,32 @@ static struct kobj_attribute uv_query_supp_secret_types_attr = static ssize_t uv_query_max_secrets(struct kobject *kobj, struct kobj_attribute *attr, char *buf) { - return sysfs_emit(buf, "%d\n", uv_info.max_secrets); + return sysfs_emit(buf, "%d\n", + uv_info.max_assoc_secrets + uv_info.max_retr_secrets); } static struct kobj_attribute uv_query_max_secrets_attr = __ATTR(max_secrets, 0444, uv_query_max_secrets, NULL); +static ssize_t uv_query_max_retr_secrets(struct kobject *kobj, + struct kobj_attribute *attr, char *buf) +{ + return sysfs_emit(buf, "%d\n", uv_info.max_retr_secrets); +} + +static struct kobj_attribute uv_query_max_retr_secrets_attr = + __ATTR(max_retr_secrets, 0444, uv_query_max_retr_secrets, NULL); + +static ssize_t uv_query_max_assoc_secrets(struct kobject *kobj, + struct kobj_attribute *attr, + char *buf) +{ + return sysfs_emit(buf, "%d\n", uv_info.max_assoc_secrets); +} + +static struct kobj_attribute uv_query_max_assoc_secrets_attr = + __ATTR(max_assoc_secrets, 0444, uv_query_max_assoc_secrets, NULL); + static struct attribute *uv_query_attrs[] = { &uv_query_facilities_attr.attr, &uv_query_feature_indications_attr.attr, @@ -719,6 +739,8 @@ static struct attribute *uv_query_attrs[] = { &uv_query_supp_add_secret_pcf_attr.attr, &uv_query_supp_secret_types_attr.attr, &uv_query_max_secrets_attr.attr, + &uv_query_max_assoc_secrets_attr.attr, + &uv_query_max_retr_secrets_attr.attr, NULL, }; |