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| author |  Harald Freudenberger <freude@linux.ibm.com>
| 2022-02-08 16:59:47 +0100 |
|---|---|---|
| committer |  Heiko Carstens <hca@linux.ibm.com>
| 2023-02-15 11:07:00 +0100 |
| commit | ad0faae6ceab7d138dddf9a58eab7151c519e0d3 (patch) | |
| tree | be138245d509c784be113ce4fdcc4e62642dda92 /arch/s390 | |
| parent | s390: remove confusing comment from uapi types header file (diff) | |
| download | linux-ad0faae6ceab7d138dddf9a58eab7151c519e0d3.tar.gz linux-ad0faae6ceab7d138dddf9a58eab7151c519e0d3.tar.bz2 linux-ad0faae6ceab7d138dddf9a58eab7151c519e0d3.zip | |
s390/zcrypt: introduce ctfm field in struct CPRBX
Modify the CPRBX struct to expose a new field ctfm for use with hardware
command filtering within a CEX8 crypto card in CCA coprocessor mode.
The field replaces a reserved byte padding field so that the layout of the
struct and the size does not change.
The new field is used only by user space applications which may use this to
expose the HW filtering facilities in the crypto firmware layers.
Signed-off-by: Harald Freudenberger <freude@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Diffstat (limited to 'arch/s390')
| -rw-r--r-- | arch/s390/include/uapi/asm/zcrypt.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/arch/s390/include/uapi/asm/zcrypt.h b/arch/s390/include/uapi/asm/zcrypt.h index d83713f67530..f4785abe1b9f 100644 --- a/arch/s390/include/uapi/asm/zcrypt.h +++ b/arch/s390/include/uapi/asm/zcrypt.h @@ -85,7 +85,8 @@ struct ica_rsa_modexpo_crt { struct CPRBX { __u16 cprb_len; /* CPRB length 220 */ __u8 cprb_ver_id; /* CPRB version id. 0x02 */ - __u8 _pad_000[3]; /* Alignment pad bytes */ + __u8 ctfm; /* Command Type Filtering Mask */ + __u8 pad_000[2]; /* Alignment pad bytes */ __u8 func_id[2]; /* function id 0x5432 */ __u8 cprb_flags[4]; /* Flags */ __u32 req_parml; /* request parameter buffer len */ |