Date: Mon, 30 Jul 2007 22:52:53 +0000 (UTC) From: Marcel Moolenaar <marcel@FreeBSD.org> To: src-committers@FreeBSD.org, cvs-src@FreeBSD.org, cvs-all@FreeBSD.org Subject: cvs commit: src/sys/ia64/ia64 exception.S Message-ID: <200707302252.l6UMqrCJ025860@repoman.freebsd.org>
next in thread | raw e-mail | index | archive | help
marcel 2007-07-30 22:52:52 UTC
FreeBSD src repository
Modified files:
sys/ia64/ia64 exception.S
Log:
o Switch to physical addressing before dereferencing the VHPT
bucket pointer. The virtual mapping may not be present in the
translation cache. This will result in a nested TLB fault at
a place we don't handle (and don't want to handle).
o Make sure there's a stop after the rfi instruction, otherwise
its behaviour is undefined.
o Make sure we switch back to virtual addressing before doing
a rfi. Behaviour is undefined otherwise.
Approved by: re (blanket)
Revision Changes Path
1.61 +62 -37 src/sys/ia64/ia64/exception.S
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?200707302252.l6UMqrCJ025860>