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CVS log for src/sys/arch/amd64/amd64/Attic/db_memrw.c

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Default branch: MAIN
Current tag: MAIN


Revision 1.12, Mon May 7 17:45:28 2012 UTC (13 months, 1 week ago) by jym
Branch: MAIN
CVS Tags: yamt-pagecache-base8, yamt-pagecache-base7, yamt-pagecache-base6, yamt-pagecache-base5, tls-maxphys-nbase, tls-maxphys-base, agc-symver-base, agc-symver, HEAD
Changes since 1.11: +2 -2 lines
FILE REMOVED

Merge i386 and amd64 version of db_memrw.c.

Use this opportunity to skip calculating the VA of the page. Let the CPU
deal with the invalidation itself through invlpg + destination address to
avoid converting between canonical/non canonical forms.

Revision 1.11 / (download) - annotate - [select for diffs], Mon May 7 12:20:27 2012 UTC (13 months, 1 week ago) by jym
Branch: MAIN
Changes since 1.10: +3 -3 lines
Diff to previous 1.10 (colored)

invlpg on a non canonical address is a noop, so no chance to invalidate
the TLB and the CPU will not notice the access right change.

This results in write protection faults in supervisor mode when patching
kernel code through ddb(4) (originally mapped as read only).

Bug reported by David Laight on port-amd64@ (thanks!), patch and test by
me.

i386 is unaffected as PG_LGFRAME does not mask the sign bits. For the
sake of correctness, use VA_SIGN_NEG(...) anyway.

XXX this is the patch that will be pulled-up to -5 and -6.

Revision 1.10 / (download) - annotate - [select for diffs], Mon May 7 12:12:04 2012 UTC (13 months, 1 week ago) by jym
Branch: MAIN
Changes since 1.9: +3 -3 lines
Diff to previous 1.9 (colored)

Use the current destination address to compute PTE, not the address of
origin.

Harmless, except when db_write_text() passes a page boundary.

From Bug Hunting.

XXX has to be pulled up to -5 and -6.

Revision 1.9 / (download) - annotate - [select for diffs], Wed Nov 23 01:15:02 2011 UTC (18 months, 3 weeks ago) by jym
Branch: MAIN
CVS Tags: yamt-pagecache-base4, netbsd-6-base, jmcneill-usbmp-pre-base2, jmcneill-usbmp-base9, jmcneill-usbmp-base8, jmcneill-usbmp-base7, jmcneill-usbmp-base6, jmcneill-usbmp-base5, jmcneill-usbmp-base4, jmcneill-usbmp-base3, jmcneill-usbmp-base2, jmcneill-usbmp-base
Branch point for: netbsd-6, jmcneill-usbmp
Changes since 1.8: +16 -23 lines
Diff to previous 1.8 (colored)

Kill dependency to xpmap_update(), and use setbits/clearbits to update
kernel PTE rights.

Revision 1.8 / (download) - annotate - [select for diffs], Mon Dec 20 00:25:24 2010 UTC (2 years, 5 months ago) by matt
Branch: MAIN
CVS Tags: yamt-pagecache-base3, yamt-pagecache-base2, yamt-pagecache-base, uebayasi-xip-base7, rmind-uvmplock-nbase, rmind-uvmplock-base, matt-mips64-premerge-20101231, jym-xensuspend-nbase, jym-xensuspend-base, jruoho-x86intr-base, jruoho-x86intr, jmcneill-audiomp3-base, jmcneill-audiomp3, cherry-xenmp-base, cherry-xenmp, bouyer-quota2-nbase, bouyer-quota2-base, bouyer-quota2
Branch point for: yamt-pagecache
Changes since 1.7: +2 -4 lines
Diff to previous 1.7 (colored)

Move counting of faults, traps, intrs, soft[intr]s, syscalls, and nswtch
from uvmexp to per-cpu cpu_data and move them to 64bits.  Remove unneeded
includes of <uvm/uvm_extern.h> and/or <uvm/uvm.h>.

Revision 1.7 / (download) - annotate - [select for diffs], Thu Jan 29 14:22:09 2009 UTC (4 years, 4 months ago) by joerg
Branch: MAIN
CVS Tags: yamt-nfs-mp-base9, yamt-nfs-mp-base8, yamt-nfs-mp-base7, yamt-nfs-mp-base6, yamt-nfs-mp-base5, yamt-nfs-mp-base4, yamt-nfs-mp-base3, yamt-nfs-mp-base11, yamt-nfs-mp-base10, uebayasi-xip-base6, uebayasi-xip-base5, uebayasi-xip-base4, uebayasi-xip-base3, uebayasi-xip-base2, uebayasi-xip-base1, uebayasi-xip-base, uebayasi-xip, nick-hppapmap-base4, nick-hppapmap-base3, nick-hppapmap-base2, nick-hppapmap-base, matt-premerge-20091211, jymxensuspend-base
Branch point for: rmind-uvmplock, jym-xensuspend
Changes since 1.6: +3 -3 lines
Diff to previous 1.6 (colored)

Match mem.c's extern for __data_start.

Revision 1.6 / (download) - annotate - [select for diffs], Mon Apr 28 20:23:12 2008 UTC (5 years, 1 month ago) by martin
Branch: MAIN
CVS Tags: yamt-pf42-base4, yamt-pf42-base3, yamt-pf42-base2, yamt-nfs-mp-base2, wrstuden-revivesa-base-4, wrstuden-revivesa-base-3, wrstuden-revivesa-base-2, wrstuden-revivesa-base-1, wrstuden-revivesa-base, wrstuden-revivesa, simonb-wapbl-nbase, simonb-wapbl-base, simonb-wapbl, netbsd-5-base, netbsd-5-1-RELEASE, netbsd-5-1-RC4, netbsd-5-1-RC3, netbsd-5-1-RC2, netbsd-5-1-RC1, netbsd-5-1-2-RELEASE, netbsd-5-1-1-RELEASE, netbsd-5-1, netbsd-5-0-RELEASE, netbsd-5-0-RC4, netbsd-5-0-RC3, netbsd-5-0-RC2, netbsd-5-0-RC1, netbsd-5-0-2-RELEASE, netbsd-5-0-1-RELEASE, netbsd-5-0, mjf-devfs2-base, matt-nb5-pq3-base, matt-nb5-pq3, matt-nb5-mips64-u2-k2-k4-k7-k8-k9, matt-nb5-mips64-u1-k1-k5, matt-nb5-mips64-premerge-20101231, matt-nb5-mips64-premerge-20091211, matt-nb5-mips64-k15, matt-nb5-mips64, matt-nb4-mips64-k7-u2a-k9b, matt-mips64-base2, hpcarm-cleanup-nbase, haad-nbase2, haad-dm-base2, haad-dm-base1, haad-dm-base, haad-dm, ad-audiomp2-base, ad-audiomp2
Branch point for: nick-hppapmap, netbsd-5
Changes since 1.5: +2 -9 lines
Diff to previous 1.5 (colored)

Remove clause 3 and 4 from TNF licenses

Revision 1.5 / (download) - annotate - [select for diffs], Thu Nov 22 16:16:41 2007 UTC (5 years, 6 months ago) by bouyer
Branch: MAIN
CVS Tags: yamt-pf42-baseX, yamt-pf42-base, yamt-nfs-mp-base, yamt-lazymbuf-base15, yamt-lazymbuf-base14, yamt-kmem-base3, yamt-kmem-base2, yamt-kmem-base, yamt-kmem, vmlocking2-base3, vmlocking2-base2, vmlocking2-base1, vmlocking2, vmlocking-nbase, reinoud-bufcleanup-nbase, reinoud-bufcleanup-base, nick-net80211-sync-base, nick-net80211-sync, mjf-devfs-base, matt-armv6-nbase, matt-armv6-base, keiichi-mipv6-nbase, keiichi-mipv6-base, keiichi-mipv6, jmcneill-pm-base, hpcarm-cleanup-base, cube-autoconf-base, cube-autoconf, bouyer-xeni386-nbase, bouyer-xeni386-merge1, bouyer-xeni386-base, bouyer-xeni386, ad-socklock-base1
Branch point for: yamt-pf42, yamt-nfs-mp, mjf-devfs2
Changes since 1.4: +12 -2 lines
Diff to previous 1.4 (colored)

Pull up the bouyer-xenamd64 branch to HEAD. This brings in amd64 support
to NetBSD/Xen, both Dom0 and DomU.

Revision 1.4 / (download) - annotate - [select for diffs], Thu Oct 18 15:28:31 2007 UTC (5 years, 8 months ago) by yamt
Branch: MAIN
CVS Tags: jmcneill-base, bouyer-xenamd64-base2, bouyer-xenamd64-base
Branch point for: mjf-devfs
Changes since 1.3: +5 -11 lines
Diff to previous 1.3 (colored)

merge yamt-x86pmap branch.

- reduce differences between amd64 and i386.  notably, share pmap.c
  between them.  it makes several i386 pmap improvements available to
  amd64, including tlb shootdown reduction and bug fixes from Stephan Uphoff.
- implement deferred pmap switching for amd64.
- remove LARGEPAGES option.  always use large pages if available.
  also, make it work on amd64.

Revision 1.3 / (download) - annotate - [select for diffs], Sun Dec 11 12:16:21 2005 UTC (7 years, 6 months ago) by christos
Branch: MAIN
CVS Tags: yamt-x86pmap-base4, yamt-x86pmap-base3, yamt-x86pmap-base2, yamt-x86pmap-base, yamt-uio_vmspace-base5, yamt-uio_vmspace, yamt-splraiseipl-base5, yamt-splraiseipl-base4, yamt-splraiseipl-base3, yamt-splraiseipl-base2, yamt-splraiseipl-base, yamt-splraiseipl, yamt-pdpolicy-base9, yamt-pdpolicy-base8, yamt-pdpolicy-base7, yamt-pdpolicy-base6, yamt-pdpolicy-base5, yamt-pdpolicy-base4, yamt-pdpolicy-base3, yamt-pdpolicy-base2, yamt-pdpolicy-base, yamt-pdpolicy, yamt-idlelwp-base8, yamt-idlelwp, wrstuden-fixsa-newbase, wrstuden-fixsa-base-1, wrstuden-fixsa-base, wrstuden-fixsa, vmlocking-base, thorpej-atomic-base, thorpej-atomic, simonb-timecounters-base, simonb-timecounters, simonb-timcounters-final, rpaulo-netinet-merge-pcb-base, rpaulo-netinet-merge-pcb, reinoud-bufcleanup, ppcoea-renovation-base, ppcoea-renovation, post-newlock2-merge, peter-altq-base, peter-altq, nick-csl-alignment-base5, nick-csl-alignment-base, nick-csl-alignment, newlock2-nbase, newlock2-base, newlock2, netbsd-4-base, netbsd-4-0-RELEASE, netbsd-4-0-RC5, netbsd-4-0-RC4, netbsd-4-0-RC3, netbsd-4-0-RC2, netbsd-4-0-RC1, netbsd-4-0-1-RELEASE, netbsd-4-0, netbsd-4, mjf-ufs-trans-base, mjf-ufs-trans, matt-nb4-arm-base, matt-nb4-arm, matt-mips64-base, matt-mips64, hpcarm-cleanup, gdamore-uart-base, gdamore-uart, elad-kernelauth-base, elad-kernelauth, chap-midi-nbase, chap-midi-base, chap-midi, ad-audiomp-base, ad-audiomp, abandoned-netbsd-4-base, abandoned-netbsd-4
Branch point for: yamt-x86pmap, vmlocking, matt-armv6, jmcneill-pm, bouyer-xenamd64
Changes since 1.2: +2 -2 lines
Diff to previous 1.2 (colored)

merge ktrace-lwp.

Revision 1.2 / (download) - annotate - [select for diffs], Wed Jun 1 19:30:11 2005 UTC (8 years ago) by drochner
Branch: MAIN
CVS Tags: yamt-vop-base3, yamt-vop-base2, yamt-vop-base, yamt-vop, yamt-readahead-pervnode, yamt-readahead-perfile, yamt-readahead-base3, yamt-readahead-base2, yamt-readahead-base, yamt-readahead, thorpej-vnode-attr-base, thorpej-vnode-attr, ktrace-lwp-base
Branch point for: yamt-lazymbuf
Changes since 1.1: +7 -7 lines
Diff to previous 1.1 (colored)

adapt to ddb constification

Revision 1.1 / (download) - annotate - [select for diffs], Sat Apr 26 18:39:27 2003 UTC (10 years, 1 month ago) by fvdl
Branch: MAIN
CVS Tags: yamt-km-base4, yamt-km-base3, yamt-km-base2, yamt-km-base, yamt-km, netbsd-3-base, netbsd-3-1-RELEASE, netbsd-3-1-RC4, netbsd-3-1-RC3, netbsd-3-1-RC2, netbsd-3-1-RC1, netbsd-3-1-1-RELEASE, netbsd-3-1, netbsd-3-0-RELEASE, netbsd-3-0-RC6, netbsd-3-0-RC5, netbsd-3-0-RC4, netbsd-3-0-RC3, netbsd-3-0-RC2, netbsd-3-0-RC1, netbsd-3-0-3-RELEASE, netbsd-3-0-2-RELEASE, netbsd-3-0-1-RELEASE, netbsd-3-0, netbsd-3, netbsd-2-base, netbsd-2-1-RELEASE, netbsd-2-1-RC6, netbsd-2-1-RC5, netbsd-2-1-RC4, netbsd-2-1-RC3, netbsd-2-1-RC2, netbsd-2-1-RC1, netbsd-2-1, netbsd-2-0-base, netbsd-2-0-RELEASE, netbsd-2-0-RC5, netbsd-2-0-RC4, netbsd-2-0-RC3, netbsd-2-0-RC2, netbsd-2-0-RC1, netbsd-2-0-3-RELEASE, netbsd-2-0-2-RELEASE, netbsd-2-0-1-RELEASE, netbsd-2-0, netbsd-2, matt-timespec, kent-audio2-base, kent-audio2, kent-audio1-beforemerge, kent-audio1-base, kent-audio1
Branch point for: ktrace-lwp

Rename the x86_64 port to amd64, as this is the actual name used for
the processor family now. x86_64 is kept as the MACHINE_ARCH value,
since it's already widely used (by e.g. the toolchain, etc), and
by other operating systems.

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