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Remove use of pcb_fs and pcb_gs.

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This commit is contained in:
fvdl 2002-05-26 12:19:38 +00:00
parent 89d9e55136
commit 5659e1960c
3 changed files with 5 additions and 17 deletions
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6
sys/arch/x86_64/x86_64/netbsd32_machdep.c
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@ -1,4 +1,4 @@
/* $NetBSD: netbsd32_machdep.c,v 1.1 2001/06/19 00:21:17 fvdl Exp $ */ /* $NetBSD: netbsd32_machdep.c,v 1.2 2002/05/26 12:19:38 fvdl Exp $ */
/* /*
* Copyright (c) 2001 Wasabi Systems, Inc. * Copyright (c) 2001 Wasabi Systems, Inc.
@ -333,8 +333,8 @@ process_read_regs32(struct proc *p, struct reg32 *regs)
struct trapframe *tf = p->p_md.md_regs; struct trapframe *tf = p->p_md.md_regs;
struct pcb *pcb = &p->p_addr->u_pcb; struct pcb *pcb = &p->p_addr->u_pcb;
regs->r_gs = pcb->pcb_gs; regs->r_gs = LSEL(LUCODE32_SEL, SEL_UPL);
regs->r_fs = pcb->pcb_fs; regs->r_fs = LSEL(LUCODE32_SEL, SEL_UPL);
regs->r_es = LSEL(LUCODE32_SEL, SEL_UPL); regs->r_es = LSEL(LUCODE32_SEL, SEL_UPL);
regs->r_ds = LSEL(LUCODE32_SEL, SEL_UPL); regs->r_ds = LSEL(LUCODE32_SEL, SEL_UPL);
regs->r_eflags = tf->tf_eflags; regs->r_eflags = tf->tf_eflags;

4
sys/arch/x86_64/x86_64/process_machdep.c
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@ -1,4 +1,4 @@
/* $NetBSD: process_machdep.c,v 1.1 2001/06/19 00:21:18 fvdl Exp $ */ /* $NetBSD: process_machdep.c,v 1.2 2002/05/26 12:19:38 fvdl Exp $ */
/*- /*-
* Copyright (c) 1998, 2000 The NetBSD Foundation, Inc. * Copyright (c) 1998, 2000 The NetBSD Foundation, Inc.
@ -234,8 +234,6 @@ process_write_regs(p, regs)
simple_unlock(&pmap->pm_lock); simple_unlock(&pmap->pm_lock);
pcb->pcb_gs = regs->r_gs;
pcb->pcb_fs = regs->r_fs;
tf->tf_eflags = regs->r_eflags; tf->tf_eflags = regs->r_eflags;
tf->tf_r15 = regs->r_r15; tf->tf_r15 = regs->r_r15;
tf->tf_r14 = regs->r_r14; tf->tf_r14 = regs->r_r14;

12
sys/arch/x86_64/x86_64/sys_machdep.c
View File

@ -1,4 +1,4 @@
/* $NetBSD: sys_machdep.c,v 1.1 2001/06/19 00:21:18 fvdl Exp $ */ /* $NetBSD: sys_machdep.c,v 1.2 2002/05/26 12:19:38 fvdl Exp $ */
/*- /*-
* Copyright (c) 1998 The NetBSD Foundation, Inc. * Copyright (c) 1998 The NetBSD Foundation, Inc.
@ -142,7 +142,6 @@ x86_64_set_ldt(p, args, retval)
int error, i, n; int error, i, n;
struct pcb *pcb = &p->p_addr->u_pcb; struct pcb *pcb = &p->p_addr->u_pcb;
pmap_t pmap = p->p_vmspace->vm_map.pmap; pmap_t pmap = p->p_vmspace->vm_map.pmap;
int fsslot, gsslot;
struct x86_64_set_ldt_args ua; struct x86_64_set_ldt_args ua;
union descriptor desc; union descriptor desc;
@ -208,8 +207,6 @@ x86_64_set_ldt(p, args, retval)
if (pcb == curpcb) if (pcb == curpcb)
savectx(curpcb); savectx(curpcb);
fsslot = IDXSEL(pcb->pcb_fs);
gsslot = IDXSEL(pcb->pcb_gs);
error = 0; error = 0;
/* Check descriptors for access violations. */ /* Check descriptors for access violations. */
@ -234,9 +231,6 @@ x86_64_set_ldt(p, args, retval)
(gdt[IDXSEL(desc.gd.gd_selector)].sd.sd_dpl != (gdt[IDXSEL(desc.gd.gd_selector)].sd.sd_dpl !=
SEL_UPL))) SEL_UPL)))
return (EACCES); return (EACCES);
/* Can't replace in use descriptor with gate. */
if (n == fsslot || n == gsslot)
return (EBUSY);
break; break;
case SDT_MEMEC: case SDT_MEMEC:
case SDT_MEMEAC: case SDT_MEMEAC:
@ -270,10 +264,6 @@ x86_64_set_ldt(p, args, retval)
/* Only user (ring-3) descriptors may be present. */ /* Only user (ring-3) descriptors may be present. */
if (desc.sd.sd_dpl != SEL_UPL) if (desc.sd.sd_dpl != SEL_UPL)
return (EACCES); return (EACCES);
} else {
/* Must be "present" if in use. */
if (n == fsslot || n == gsslot)
return (EBUSY);
} }
} }