obp/obp/arch/sun4v/error-reset.fth

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\ Hypervisor Software File: error-reset.fth
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id: @(#)error-reset.fth 1.1 06/02/16
purpose: Recover from error resets
copyright: Copyright 2006 Sun Microsystems, Inc.  All Rights Reserved
copyright: Use is subject to license terms.

label error-reset-recovery

   %o7                  %g3     move            \ Save return address in %g3

   %g0  h# f                    wrpil
   %g0  4                       wrpstate

   trap-table      %o1          set
   %o1             0            wrtba           \ Take over the tba

   h# ffff              %o1     set

   %g0  1               %o0     add
   %g0 mmu-on-off-func# %o5  add
   %g4                          rdpc
   %g4  %o1             %g4     and
   h# f000.0000         %o1     set
   %o1  %g4             %o1     add
   %o1  h# 20           %o1     add
   %g0 fast-trap#    always  htrapif
   nop
   nop nop nop nop                              \ return to here but
                                                \ in virtual space
   %g0 0 wrtl

   h# ffff              %o1     set             \ return address
   %g3  %o1             %g3     and             \ need to be f000.xxxx
   h# f000.0000         %o1     set
   %o1  %g3             %g3     add
   %g3  8               %g0     jmpl
                                nop             \ (delay)
end-code