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[src/trunk]: src/sys/arch Remove PG_k completely.
details: https://anonhg.NetBSD.org/src/rev/6efd8ef30bf7
branches: trunk
changeset: 822520:6efd8ef30bf7
user: maxv <maxv%NetBSD.org@localhost>
date: Thu Mar 23 18:08:06 2017 +0000
description:
Remove PG_k completely.
diffstat:
sys/arch/i386/i386/machdep.c | 8 ++++----
sys/arch/x86/include/pmap.h | 4 +---
sys/arch/x86/x86/pmap.c | 32 ++++++++++++++------------------
sys/arch/xen/x86/cpu.c | 8 ++++----
sys/arch/xen/x86/xen_pmap.c | 25 ++++++++++++-------------
5 files changed, 35 insertions(+), 42 deletions(-)
diffs (296 lines):
diff -r 76b9cf1f8107 -r 6efd8ef30bf7 sys/arch/i386/i386/machdep.c
--- a/sys/arch/i386/i386/machdep.c Thu Mar 23 17:25:51 2017 +0000
+++ b/sys/arch/i386/i386/machdep.c Thu Mar 23 18:08:06 2017 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: machdep.c,v 1.780 2017/02/23 03:34:22 kamil Exp $ */
+/* $NetBSD: machdep.c,v 1.781 2017/03/23 18:08:06 maxv Exp $ */
/*-
* Copyright (c) 1996, 1997, 1998, 2000, 2004, 2006, 2008, 2009
@@ -67,7 +67,7 @@
*/
#include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: machdep.c,v 1.780 2017/02/23 03:34:22 kamil Exp $");
+__KERNEL_RCSID(0, "$NetBSD: machdep.c,v 1.781 2017/03/23 18:08:06 maxv Exp $");
#include "opt_beep.h"
#include "opt_compat_ibcs2.h"
@@ -1019,7 +1019,7 @@
pt_entry_t pte;
pte = pmap_pa2pte((vaddr_t)gdtstore - KERNBASE);
- pte |= PG_k | PG_RO | xpmap_pg_nx | PG_V;
+ pte |= PG_RO | xpmap_pg_nx | PG_V;
if (HYPERVISOR_update_va_mapping((vaddr_t)gdtstore, pte,
UVMF_INVLPG) < 0) {
@@ -1223,7 +1223,7 @@
pt_entry_t pte;
pte = pmap_pa2pte((vaddr_t)tmpgdt - KERNBASE);
- pte |= PG_k | PG_RW | xpmap_pg_nx | PG_V;
+ pte |= PG_RW | xpmap_pg_nx | PG_V;
if (HYPERVISOR_update_va_mapping((vaddr_t)tmpgdt, pte, UVMF_INVLPG) < 0) {
panic("tmpgdt page relaim RW update failed.\n");
diff -r 76b9cf1f8107 -r 6efd8ef30bf7 sys/arch/x86/include/pmap.h
--- a/sys/arch/x86/include/pmap.h Thu Mar 23 17:25:51 2017 +0000
+++ b/sys/arch/x86/include/pmap.h Thu Mar 23 18:08:06 2017 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: pmap.h,v 1.63 2017/03/05 09:08:18 maxv Exp $ */
+/* $NetBSD: pmap.h,v 1.64 2017/03/23 18:08:06 maxv Exp $ */
/*
* Copyright (c) 1997 Charles D. Cranor and Washington University.
@@ -180,8 +180,6 @@
((pmap)->pm_pdirpa[0] + (index) * sizeof(pd_entry_t))
#endif
-#define PG_k 0
-
/*
* MD flags that we use for pmap_enter and pmap_kenter_pa:
*/
diff -r 76b9cf1f8107 -r 6efd8ef30bf7 sys/arch/x86/x86/pmap.c
--- a/sys/arch/x86/x86/pmap.c Thu Mar 23 17:25:51 2017 +0000
+++ b/sys/arch/x86/x86/pmap.c Thu Mar 23 18:08:06 2017 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: pmap.c,v 1.243 2017/03/15 16:42:18 maxv Exp $ */
+/* $NetBSD: pmap.c,v 1.244 2017/03/23 18:08:06 maxv Exp $ */
/*-
* Copyright (c) 2008, 2010, 2016, 2017 The NetBSD Foundation, Inc.
@@ -171,7 +171,7 @@
*/
#include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: pmap.c,v 1.243 2017/03/15 16:42:18 maxv Exp $");
+__KERNEL_RCSID(0, "$NetBSD: pmap.c,v 1.244 2017/03/23 18:08:06 maxv Exp $");
#include "opt_user_ldt.h"
#include "opt_lockdebug.h"
@@ -981,7 +981,7 @@
} else
#endif /* DOM0OPS */
npte = pmap_pa2pte(pa);
- npte |= protection_codes[prot] | PG_k | PG_V | pmap_pg_g;
+ npte |= protection_codes[prot] | PG_V | pmap_pg_g;
npte |= pmap_pat_flags(flags);
opte = pmap_pte_testset(pte, npte); /* zap! */
#if defined(DIAGNOSTIC)
@@ -1018,7 +1018,7 @@
npte = pmap_pa2pte(pa);
npte = pmap_pa2pte(pa);
- npte |= protection_codes[prot] | PG_k | PG_V;
+ npte |= protection_codes[prot] | PG_V;
pmap_pte_set(pte, npte);
}
@@ -1354,7 +1354,7 @@
memset((void *)(xen_dummy_user_pgd + KERNBASE), 0, PAGE_SIZE);
/* Mark read-only */
HYPERVISOR_update_va_mapping(xen_dummy_user_pgd + KERNBASE,
- pmap_pa2pte(xen_dummy_user_pgd) | PG_k | PG_V | pmap_pg_nx,
+ pmap_pa2pte(xen_dummy_user_pgd) | PG_V | pmap_pg_nx,
UVMF_INVLPG);
/* Pin as L4 */
xpq_queue_pin_l4_table(xpmap_ptom_masked(xen_dummy_user_pgd));
@@ -2109,7 +2109,7 @@
* This pdir will NEVER be active in kernel mode, so mark
* recursive entry invalid.
*/
- pdir[PDIR_SLOT_PTE] = pmap_pa2pte(pdirpa) | PG_k;
+ pdir[PDIR_SLOT_PTE] = pmap_pa2pte(pdirpa);
/*
* PDP constructed this way won't be for the kernel, hence we
@@ -3076,8 +3076,7 @@
pt_entry_t *zpte;
vaddr_t zerova;
- const pd_entry_t pteflags = PG_V | PG_RW | pmap_pg_nx | PG_M | PG_U |
- PG_k;
+ const pd_entry_t pteflags = PG_V | PG_RW | pmap_pg_nx | PG_M | PG_U;
kpreempt_disable();
@@ -3123,8 +3122,7 @@
vaddr_t zerova;
bool rv;
- const pd_entry_t pteflags = PG_V | PG_RW | pmap_pg_nx | PG_M | PG_U |
- PG_k;
+ const pd_entry_t pteflags = PG_V | PG_RW | pmap_pg_nx | PG_M | PG_U;
ci = curcpu();
zerova = ci->vpage[VPAGE_ZER];
@@ -3171,7 +3169,7 @@
pt_entry_t *srcpte, *dstpte;
vaddr_t srcva, dstva;
- const pd_entry_t pteflags = PG_V | PG_RW | pmap_pg_nx | PG_U | PG_k;
+ const pd_entry_t pteflags = PG_V | PG_RW | pmap_pg_nx | PG_U;
kpreempt_disable();
@@ -3213,10 +3211,9 @@
KASSERT(kpreempt_disabled());
#ifndef XEN
- const pd_entry_t pteflags = PG_V | PG_RW | pmap_pg_nx | PG_U | PG_M |
- PG_k;
+ const pd_entry_t pteflags = PG_V | PG_RW | pmap_pg_nx | PG_U | PG_M;
#else
- const pd_entry_t pteflags = PG_V | pmap_pg_nx | PG_U | PG_M | PG_k;
+ const pd_entry_t pteflags = PG_V | pmap_pg_nx | PG_U | PG_M;
#endif
ci = curcpu();
@@ -4074,8 +4071,7 @@
npte |= PG_u;
else if (va < VM_MAX_ADDRESS)
panic("PTE space accessed"); /* XXXmaxv: no longer needed? */
- else
- npte |= PG_k;
+
if (pmap == pmap_kernel())
npte |= pmap_pg_g;
if (flags & VM_PROT_ALL) {
@@ -4271,7 +4267,7 @@
#endif
kpreempt_disable();
pmap_pte_set(early_zero_pte, pmap_pa2pte(pa) | PG_V |
- PG_RW | pmap_pg_nx | PG_k);
+ PG_RW | pmap_pg_nx);
pmap_pte_flush();
pmap_update_pg((vaddr_t)early_zerop);
memset(early_zerop, 0, PAGE_SIZE);
@@ -4329,7 +4325,7 @@
KASSERT(!pmap_valid_entry(pdep[i]));
pa = pmap_get_physpage();
- pte = pmap_pa2pte(pa) | PG_k | PG_V | PG_RW;
+ pte = pmap_pa2pte(pa) | PG_V | PG_RW;
pmap_pte_set(&pdep[i], pte);
#if defined(XEN) && (defined(PAE) || defined(__x86_64__))
diff -r 76b9cf1f8107 -r 6efd8ef30bf7 sys/arch/xen/x86/cpu.c
--- a/sys/arch/xen/x86/cpu.c Thu Mar 23 17:25:51 2017 +0000
+++ b/sys/arch/xen/x86/cpu.c Thu Mar 23 18:08:06 2017 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: cpu.c,v 1.109 2017/02/11 14:11:24 maxv Exp $ */
+/* $NetBSD: cpu.c,v 1.110 2017/03/23 18:08:06 maxv Exp $ */
/*-
* Copyright (c) 2000 The NetBSD Foundation, Inc.
@@ -65,7 +65,7 @@
*/
#include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: cpu.c,v 1.109 2017/02/11 14:11:24 maxv Exp $");
+__KERNEL_RCSID(0, "$NetBSD: cpu.c,v 1.110 2017/03/23 18:08:06 maxv Exp $");
#include "opt_ddb.h"
#include "opt_multiprocessor.h"
@@ -1228,7 +1228,7 @@
/* Recursive kernel mapping */
ci->ci_kpm_pdir[PDIR_SLOT_PTE] = xpmap_ptom_masked(ci->ci_kpm_pdirpa)
- | PG_k | PG_V | xpmap_pg_nx;
+ | PG_V | xpmap_pg_nx;
#elif defined(PAE)
/* Copy over the pmap_kernel() shadow L2 entries */
memcpy(ci->ci_kpm_pdir, pmap_kernel()->pm_pdir + PDIR_SLOT_KERN,
@@ -1244,7 +1244,7 @@
* Initialize L3 entry 3. This mapping is shared across all pmaps and is
* static, ie: loading a new pmap will not update this entry.
*/
- ci->ci_pae_l3_pdir[3] = xpmap_ptom_masked(ci->ci_kpm_pdirpa) | PG_k | PG_V;
+ ci->ci_pae_l3_pdir[3] = xpmap_ptom_masked(ci->ci_kpm_pdirpa) | PG_V;
/* Xen wants a RO L3. */
pmap_protect(pmap_kernel(), (vaddr_t)ci->ci_pae_l3_pdir,
diff -r 76b9cf1f8107 -r 6efd8ef30bf7 sys/arch/xen/x86/xen_pmap.c
--- a/sys/arch/xen/x86/xen_pmap.c Thu Mar 23 17:25:51 2017 +0000
+++ b/sys/arch/xen/x86/xen_pmap.c Thu Mar 23 18:08:06 2017 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: xen_pmap.c,v 1.25 2016/12/26 08:53:11 cherry Exp $ */
+/* $NetBSD: xen_pmap.c,v 1.26 2017/03/23 18:08:06 maxv Exp $ */
/*
* Copyright (c) 2007 Manuel Bouyer.
@@ -22,7 +22,6 @@
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
*/
/*
@@ -102,7 +101,7 @@
*/
#include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: xen_pmap.c,v 1.25 2016/12/26 08:53:11 cherry Exp $");
+__KERNEL_RCSID(0, "$NetBSD: xen_pmap.c,v 1.26 2017/03/23 18:08:06 maxv Exp $");
#include "opt_user_ldt.h"
#include "opt_lockdebug.h"
@@ -147,7 +146,7 @@
int
pmap_enter(struct pmap *pmap, vaddr_t va, paddr_t pa, vm_prot_t prot, u_int flags)
{
- paddr_t ma;
+ paddr_t ma;
if (__predict_false(pa < pmap_pa_start || pmap_pa_end <= pa)) {
ma = pa; /* XXX hack */
@@ -176,15 +175,14 @@
else
pte = kvtopte(va);
- npte = ma | ((prot & VM_PROT_WRITE) ? PG_RW : PG_RO) |
- PG_V | PG_k;
+ npte = ma | ((prot & VM_PROT_WRITE) ? PG_RW : PG_RO) | PG_V;
if (flags & PMAP_NOCACHE)
npte |= PG_N;
if ((cpu_feature[2] & CPUID_NOX) && !(prot & VM_PROT_EXECUTE))
npte |= PG_NX;
- opte = pmap_pte_testset (pte, npte); /* zap! */
+ opte = pmap_pte_testset(pte, npte); /* zap! */
if (pmap_valid_entry(opte)) {
#if defined(MULTIPROCESSOR)
@@ -192,7 +190,8 @@
pmap_update_pg(va);
} else {
kpreempt_disable();
- pmap_tlb_shootdown(pmap_kernel(), va, opte, TLBSHOOT_KENTER);
+ pmap_tlb_shootdown(pmap_kernel(), va, opte,
+ TLBSHOOT_KENTER);
kpreempt_enable();
}
#else
@@ -335,13 +334,13 @@
}
#ifdef PAE
xpq_queue_pte_update(
- xpmap_ptetomach(&ci->ci_kpm_pdir[l2tol2(index)]),
- pmap->pm_pdir[index]);
+ xpmap_ptetomach(&ci->ci_kpm_pdir[l2tol2(index)]),
+ pmap->pm_pdir[index]);
#elif defined(__x86_64__)
xpq_queue_pte_update(
- xpmap_ptetomach(&ci->ci_kpm_pdir[index]),
- pmap->pm_pdir[index]);
-#endif /* PAE */
+ xpmap_ptetomach(&ci->ci_kpm_pdir[index]),
+ pmap->pm_pdir[index]);
+#endif
xpq_flush_queue();
}
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