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| author | Steffen Eiden <seiden@linux.ibm.com> | 2023-06-15 12:05:33 +0200 |
|---|---|---|
| committer | Janosch Frank <frankja@linux.ibm.com> | 2023-06-16 11:08:09 +0200 |
| commit | db54dfc9f71cd2df7afd1e88535ef6099cb0333e (patch) | |
| tree | 1395e4c9394e3e3d8b728955623f7a9a54004110 /arch/s390/kernel/uv.c | |
| parent | 78d3326e725e8a8b17b8fe1a6beaf8e0ea04de04 (diff) | |
s390/uv: Update query for secret-UVCs
Update the query struct such that secret-UVC related
information can be parsed.
Add sysfs files for these new values.
'supp_add_secret_req_ver' notes the supported versions for the
Add Secret UVC. Bit 0 indicates that version 0x100 is supported,
bit 1 indicates 0x200, and so on.
'supp_add_secret_pcf' notes the supported plaintext flags for
the Add Secret UVC.
'supp_secret_types' notes the supported types of secrets.
Bit 0 indicates secret type 1, bit 1 indicates type 2, and so on.
'max_secrets' notes the maximum amount of secrets the secret store can
store per pv guest.
Signed-off-by: Steffen Eiden <seiden@linux.ibm.com>
Reviewed-by: Janosch Frank <frankja@linux.ibm.com>
Link: https://lore.kernel.org/r/20230615100533.3996107-8-seiden@linux.ibm.com
Signed-off-by: Janosch Frank <frankja@linux.ibm.com>
Message-Id: <20230615100533.3996107-8-seiden@linux.ibm.com>
Diffstat (limited to 'arch/s390/kernel/uv.c')
| -rw-r--r-- | arch/s390/kernel/uv.c | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/arch/s390/kernel/uv.c b/arch/s390/kernel/uv.c index 6a23a13d0dfc..273a0281a189 100644 --- a/arch/s390/kernel/uv.c +++ b/arch/s390/kernel/uv.c @@ -579,6 +579,42 @@ static ssize_t uv_query_supp_att_pflags(struct kobject *kobj, static struct kobj_attribute uv_query_supp_att_pflags_attr = __ATTR(supp_att_pflags, 0444, uv_query_supp_att_pflags, NULL); +static ssize_t uv_query_supp_add_secret_req_ver(struct kobject *kobj, + struct kobj_attribute *attr, char *buf) +{ + return sysfs_emit(buf, "%lx\n", uv_info.supp_add_secret_req_ver); +} + +static struct kobj_attribute uv_query_supp_add_secret_req_ver_attr = + __ATTR(supp_add_secret_req_ver, 0444, uv_query_supp_add_secret_req_ver, NULL); + +static ssize_t uv_query_supp_add_secret_pcf(struct kobject *kobj, + struct kobj_attribute *attr, char *buf) +{ + return sysfs_emit(buf, "%lx\n", uv_info.supp_add_secret_pcf); +} + +static struct kobj_attribute uv_query_supp_add_secret_pcf_attr = + __ATTR(supp_add_secret_pcf, 0444, uv_query_supp_add_secret_pcf, NULL); + +static ssize_t uv_query_supp_secret_types(struct kobject *kobj, + struct kobj_attribute *attr, char *buf) +{ + return sysfs_emit(buf, "%lx\n", uv_info.supp_secret_types); +} + +static struct kobj_attribute uv_query_supp_secret_types_attr = + __ATTR(supp_secret_types, 0444, uv_query_supp_secret_types, NULL); + +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); +} + +static struct kobj_attribute uv_query_max_secrets_attr = + __ATTR(max_secrets, 0444, uv_query_max_secrets, NULL); + static struct attribute *uv_query_attrs[] = { &uv_query_facilities_attr.attr, &uv_query_feature_indications_attr.attr, @@ -592,6 +628,10 @@ static struct attribute *uv_query_attrs[] = { &uv_query_dump_cpu_len_attr.attr, &uv_query_supp_att_req_hdr_ver_attr.attr, &uv_query_supp_att_pflags_attr.attr, + &uv_query_supp_add_secret_req_ver_attr.attr, + &uv_query_supp_add_secret_pcf_attr.attr, + &uv_query_supp_secret_types_attr.attr, + &uv_query_max_secrets_attr.attr, NULL, }; |