Date: Sun, 9 Jul 2006 12:27:27 GMT From: François Charlier <fcharlier@ploup.net> To: freebsd-gnats-submit@FreeBSD.org Subject: i386/99959: Via Padlock ACE support not detected for via C7 (Esther) processor Message-ID: <200607091227.k69CRRDN014965@www.freebsd.org> Resent-Message-ID: <200607091230.k69CUDx1064818@freefall.freebsd.org>
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>Number: 99959 >Category: i386 >Synopsis: Via Padlock ACE support not detected for via C7 (Esther) processor >Confidential: no >Severity: non-critical >Priority: medium >Responsible: freebsd-i386 >State: open >Quarter: >Keywords: >Date-Required: >Class: sw-bug >Submitter-Id: current-users >Arrival-Date: Sun Jul 09 12:30:12 GMT 2006 >Closed-Date: >Last-Modified: >Originator: François Charlier >Release: 6.1 >Organization: >Environment: FreeBSD loin.ploup.net 6.1-STABLE FreeBSD 6.1-STABLE #0: Sun Jul 9 02:09:00 CEST 2006 naz@loin.ploup.net:/usr/obj/usr/src/sys/DEDIBOX i386 >Description: Via Padlock ACE support is not detected vor via Esther (C5J) and maybe Ruth (C5Q) processors. Loading the padlock module returns : PADLOCK: No ACE support. The Via Padlock Programming Guide (http://www.via.com.tw/en/downloads/whitepapers/initiatives/padlock/programming_guide.pdf) specifies on page 5 that "Centaur Extended Features Flags are supported" "if CPUID with EAX = 0xC0000000 returns EAX >= 0xC0000001". However, the file src/sys/crypto/via/padlock.c does the following test in function padlock_init(void) [line 167 in 6.1-STABLE] : if (regs[0] == 0xc0000001) { which is wrong and should be changed to : if (regs[0] >= 0xc0000001) { >How-To-Repeat: kldload padlock.ko on a machine with a C7 processor >Fix: Follow the programming guide and modify src/sys/crypto/via/padlock.c in function padlock_init(void) [line 167 in 6.1-STABLE] from : if (regs[0] == 0xc0000001) { to : if (regs[0] >= 0xc0000001) { >Release-Note: >Audit-Trail: >Unformatted:
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