diff options
| author | Andy Polyakov <appro@openssl.org> | 2016-04-15 16:39:22 +0200 |
|---|---|---|
| committer | Andy Polyakov <appro@openssl.org> | 2016-04-25 11:53:45 +0200 |
| commit | 670ad0fbf6ebcf113e278d8174081a7e2d2fa44c (patch) | |
| tree | b113688a273d8dcc2e70148a4265c5fd8a6c381c /crypto/modes/asm/ghash-s390x.pl | |
| parent | 299ccadcdb99001c618d188fb243c1caaaa86a1c (diff) | |
s390x assembly pack: cache capability query results.
IBM argues that in certain scenarios capability query is really
expensive. At the same time it's asserted that query results can
be safely cached, because disabling CPACF is incompatible with
reboot-free operation.
Reviewed-by: Tim Hudson <tjh@openssl.org>
Diffstat (limited to 'crypto/modes/asm/ghash-s390x.pl')
| -rw-r--r-- | crypto/modes/asm/ghash-s390x.pl | 4 |
1 files changed, 1 insertions, 3 deletions
diff --git a/crypto/modes/asm/ghash-s390x.pl b/crypto/modes/asm/ghash-s390x.pl index a46f3eba6a..8c3ce6928d 100644 --- a/crypto/modes/asm/ghash-s390x.pl +++ b/crypto/modes/asm/ghash-s390x.pl @@ -85,9 +85,7 @@ $code.=<<___ if(!$softonly && 0); # hardware is slow for single block... tmhl %r0,0x4000 # check for message-security-assist jz .Lsoft_gmult lghi %r0,0 - la %r1,16($sp) - .long 0xb93e0004 # kimd %r0,%r4 - lg %r1,24($sp) + lg %r1,24(%r1) # load second word of kimd capabilities vector tmhh %r1,0x4000 # check for function 65 jz .Lsoft_gmult stg %r0,16($sp) # arrange 16 bytes of zero input |