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From: Adrian Chadd <adrian@FreeBSD.org>
Date: Thu, 28 May 2009 04:17:05 +0000 (UTC)
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Subject: cvs commit: src/sys/conf files.i386 src/sys/i386/xen xen_rtc.c
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adrian      2009-05-28 04:17:05 UTC

  FreeBSD src repository

  Modified files:
    sys/conf             files.i386 
  Added files:
    sys/i386/xen         xen_rtc.c 
  Log:
  SVN rev 192953 on 2009-05-28 04:17:05Z by adrian
  
  Say hello to a very basic, read-only, Xen Hypervisor RTC.
  
  The hypervisor doesn't provide a single "TOD" - it instead provides a
  "start time" and a "running time". These are added together to form
  the current TOD. The TOD is in UTC.
  
  This RTC is only (initially) designed to be read at startup. There's
  some further poking that needs to happen to pick up hypervisor time
  changes (ie, by the Dom0 time being adjusted by something). This
  time adjustment currently can cause "weird stuff" in the DomU clock;
  I'll begin investigating and repairing that in subsequent commits.
  
  PR:             135008
  
  Revision  Changes    Path
  1.623     +1 -0      src/sys/conf/files.i386
  1.1       +191 -0    src/sys/i386/xen/xen_rtc.c (new)