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CVS commit: src/sys/arch/x86/x86

Module Name:    src
Committed By:   bouyer
Date:           Mon Feb 20 20:49:12 UTC 2012

Modified Files:
        src/sys/arch/x86/x86: pmap.c

Log Message:
- Make pmap_write_protect() work with pmap_kernel() too ((va & L2_FRAME)
  strips the high bits of a LP64 address)
- use pmap_protect() in pmap_pdp_ctor() to remap the PDP read-only instead
  of (ab)using pmap_kenter_pa(). No more "mapping already present" on
  console with DIAGNOSTIC kernels
- make sure to zero the whole PDP (NTOPLEVEL_PDES doens't include
  high-level entries on i386 and i386PAE, reserved by Xen). Not sure
  how it has worked before
- remove an always-true test (&& pmap != pmap_kernel(); we KASSERT that
  at the function entry).

To generate a diff of this commit:
cvs rdiff -u -r1.165 -r1.166 src/sys/arch/x86/x86/pmap.c

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.

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