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Rearrange tl1_trap slightly, also save and restore the out registers so

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that instruction emulation is possible in kernel mode.
This commit is contained in:
jake 2002-09-24 23:22:42 +00:00
parent 00ab0405c9
commit db1f953528
1 changed files with 27 additions and 12 deletions
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39
sys/sparc64/sparc64/exception.S
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@ -2761,22 +2761,19 @@ ENTRY(tl1_trap)
and %l5, WSTATE_OTHER_MASK, %l5
wrpr %l5, WSTATE_KERNEL, %wstate
stw %o0, [%sp + SPOFF + CCFSZ + TF_TYPE]
stx %o3, [%sp + SPOFF + CCFSZ + TF_TAR]
stx %o4, [%sp + SPOFF + CCFSZ + TF_SFAR]
stw %o5, [%sp + SPOFF + CCFSZ + TF_SFSR]
stx %l0, [%sp + SPOFF + CCFSZ + TF_TSTATE]
stx %l1, [%sp + SPOFF + CCFSZ + TF_TPC]
stx %l2, [%sp + SPOFF + CCFSZ + TF_TNPC]
stb %l3, [%sp + SPOFF + CCFSZ + TF_PIL]
stw %l4, [%sp + SPOFF + CCFSZ + TF_Y]
stw %o0, [%sp + SPOFF + CCFSZ + TF_TYPE]
stx %o3, [%sp + SPOFF + CCFSZ + TF_TAR]
stx %o4, [%sp + SPOFF + CCFSZ + TF_SFAR]
stw %o5, [%sp + SPOFF + CCFSZ + TF_SFSR]
stx %i6, [%sp + SPOFF + CCFSZ + TF_O6]
stx %i7, [%sp + SPOFF + CCFSZ + TF_O7]
mov PCB_REG, %l4
mov PCPU_REG, %l5
mov PCB_REG, %l0
mov PCPU_REG, %l1
wrpr %g0, PSTATE_NORMAL, %pstate
stx %g1, [%sp + SPOFF + CCFSZ + TF_G1]
@ -2785,13 +2782,31 @@ ENTRY(tl1_trap)
stx %g4, [%sp + SPOFF + CCFSZ + TF_G4]
stx %g5, [%sp + SPOFF + CCFSZ + TF_G5]
mov %l4, PCB_REG
mov %l5, PCPU_REG
mov %l0, PCB_REG
mov %l1, PCPU_REG
wrpr %g0, PSTATE_KERNEL, %pstate
stx %i0, [%sp + SPOFF + CCFSZ + TF_O0]
stx %i1, [%sp + SPOFF + CCFSZ + TF_O1]
stx %i2, [%sp + SPOFF + CCFSZ + TF_O2]
stx %i3, [%sp + SPOFF + CCFSZ + TF_O3]
stx %i4, [%sp + SPOFF + CCFSZ + TF_O4]
stx %i5, [%sp + SPOFF + CCFSZ + TF_O5]
stx %i6, [%sp + SPOFF + CCFSZ + TF_O6]
stx %i7, [%sp + SPOFF + CCFSZ + TF_O7]
call trap
add %sp, CCFSZ + SPOFF, %o0
ldx [%sp + SPOFF + CCFSZ + TF_O0], %i0
ldx [%sp + SPOFF + CCFSZ + TF_O1], %i1
ldx [%sp + SPOFF + CCFSZ + TF_O2], %i2
ldx [%sp + SPOFF + CCFSZ + TF_O3], %i3
ldx [%sp + SPOFF + CCFSZ + TF_O4], %i4
ldx [%sp + SPOFF + CCFSZ + TF_O5], %i5
ldx [%sp + SPOFF + CCFSZ + TF_O6], %i6
ldx [%sp + SPOFF + CCFSZ + TF_O7], %i7
ldx [%sp + SPOFF + CCFSZ + TF_TSTATE], %l0
ldx [%sp + SPOFF + CCFSZ + TF_TPC], %l1
ldx [%sp + SPOFF + CCFSZ + TF_TNPC], %l2