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- Don't allow tf_wstate to be set in set_regs.

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- Clear FPRS_FEF in set_fpregs so the new registers will be reloaded.
This commit is contained in:
Jake Burkholder 2003-04-01 04:29:03 +00:00
parent 8fe20fdafa
commit 404221fe55
1 changed files with 6 additions and 1 deletions
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7
sys/sparc64/sparc64/machdep.c
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@ -92,6 +92,7 @@
#include <machine/clock.h>
#include <machine/cpu.h>
#include <machine/fp.h>
#include <machine/fsr.h>
#include <machine/intr_machdep.h>
#include <machine/md_var.h>
#include <machine/metadata.h>
@ -653,10 +654,13 @@ fill_regs(struct thread *td, struct reg *regs)
int
set_regs(struct thread *td, struct reg *regs)
{
struct trapframe *tf;
if (!TSTATE_SECURE(regs->r_tstate))
return (EINVAL);
bcopy(regs, td->td_frame, sizeof(*regs));
tf = td->td_frame;
regs->r_wstate = tf->tf_wstate;
bcopy(regs, tf, sizeof(*regs));
return (0);
}
@ -696,6 +700,7 @@ set_fpregs(struct thread *td, struct fpreg *fpregs)
pcb = td->td_pcb;
tf = td->td_frame;
tf->tf_fprs &= ~FPRS_FEF;
bcopy(fpregs->fr_regs, pcb->pcb_ufp, sizeof(pcb->pcb_ufp));
tf->tf_fsr = fpregs->fr_fsr;
tf->tf_gsr = fpregs->fr_gsr;