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Restore the user HAE all the time, not just when returning to usermode.

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This closes a very small window where the use HAE might not be restored
at all.  This only happens when switching to a process which has used the
HAE.
This commit is contained in:
Doug Rabson 1998-12-02 10:24:56 +00:00
parent 5ac82ff587
commit 28ae06aad0
1 changed files with 5 additions and 3 deletions
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8
sys/alpha/alpha/swtch.s
View file

@ -1,4 +1,4 @@
/* $Id: swtch.s,v 1.5 1998/08/23 16:05:54 dfr Exp $ */
/* $Id: swtch.s,v 1.6 1998/11/15 18:25:15 dfr Exp $ */
/* $NetBSD: locore.s,v 1.47 1998/03/22 07:26:32 thorpej Exp $ */
/*
@ -324,16 +324,18 @@ Lsetfpenable:
cmovne t0, 1, a0
call_pal PAL_OSF1_wrfen
Lrestoreregs:
/* set the hae register if this process has specified a value */
ldq t0, curproc
beq t0, Lnohae
ldq t1, P_MD_FLAGS(t0)
and t1, MDP_HAEUSED
beq t1, Lrestoreregs
beq t1, Lnohae
ldq a0, P_MD_HAE(t0)
ldq pv, chipset + CHIPSET_WRITE_HAE
CALL((pv))
Lnohae:
Lrestoreregs:
/* restore the registers, and return */
bsr ra, exception_restore_regs /* jmp/CALL trashes pv/t12 */
ldq ra,(FRAME_RA*8)(sp)