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CVS commit: src/sys/arch

Module Name:    src
Committed By:   cherry
Date:           Tue May  6 04:26:24 UTC 2014

Modified Files:
        src/sys/arch/x86/x86: pmap.c
        src/sys/arch/xen/include: xenpmap.h
        src/sys/arch/xen/x86: x86_xpmap.c

Log Message:
Use the hypervisor to copy/zero pages. This saves us the extra overheads
of setting up temporary kernel mapping/unmapping.

riz@ reports savings of about 2s on a 120s kernel build.

To generate a diff of this commit:
cvs rdiff -u -r1.181 -r1.182 src/sys/arch/x86/x86/pmap.c
cvs rdiff -u -r1.37 -r1.38 src/sys/arch/xen/include/xenpmap.h
cvs rdiff -u -r1.52 -r1.53 src/sys/arch/xen/x86/x86_xpmap.c

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

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