From 06e4ef146124925fe83eaa4ffdd54b0b0d7b5214 Mon Sep 17 00:00:00 2001
From: Dmitrij Tejblum <dt@FreeBSD.org>
Date: Tue, 11 May 1999 18:55:18 +0000
Subject: [PATCH] Initialize bootifo.envp, so that the kernel environment can
 be used.

Set kernelname. Get it as getenv("kernelname"), bootinfo.booted_kernel does
not contain path to the directory.
---
 sys/alpha/alpha/db_interface.c |  2 --
 sys/alpha/alpha/machdep.c      |  7 ++++++-
 sys/alpha/alpha/pmap.c         | 13 ++++++++++---
 3 files changed, 16 insertions(+), 6 deletions(-)

diff --git a/sys/alpha/alpha/db_interface.c b/sys/alpha/alpha/db_interface.c
index 99bae72405a3..ffd82c14c398 100644
--- a/sys/alpha/alpha/db_interface.c
+++ b/sys/alpha/alpha/db_interface.c
@@ -79,8 +79,6 @@ extern jmp_buf	db_jmpbuf;
 
 extern void	gdb_handle_exception __P((db_regs_t *, int, int));
 
-extern label_t	*db_recover;
-
 #if 0
 extern char *trap_type[];
 extern int trap_types;
diff --git a/sys/alpha/alpha/machdep.c b/sys/alpha/alpha/machdep.c
index a4d8c7d6e628..dcb2d76421eb 100644
--- a/sys/alpha/alpha/machdep.c
+++ b/sys/alpha/alpha/machdep.c
@@ -23,7 +23,7 @@
  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  * SUCH DAMAGE.
  *
- *	$Id: machdep.c,v 1.39 1999/04/23 19:53:37 dt Exp $
+ *	$Id: machdep.c,v 1.40 1999/04/26 08:57:51 peter Exp $
  */
 /*-
  * Copyright (c) 1998 The NetBSD Foundation, Inc.
@@ -629,6 +629,7 @@ alpha_init(pfn, ptb, bim, bip, biv)
 			bootinfo.esym = v1p->esym;
 			bootinfo.kernend = v1p->kernend;
 			bootinfo.modptr = v1p->modptr;
+			bootinfo.envp = v1p->envp;
 			/* hwrpb may not be provided by boot block in v1 */
 			if (v1p->hwrpb != NULL) {
 				bootinfo.hwrpb_phys =
@@ -788,6 +789,10 @@ alpha_init(pfn, ptb, bim, bip, biv)
 	preload_metadata = (caddr_t)bootinfo.modptr;
 	kern_envp = bootinfo.envp;
 
+	p = getenv("kernelname");
+	if (p)
+		strncpy(kernelname, p, sizeof(kernelname) - 1);
+
 	kernstartpfn = atop(ALPHA_K0SEG_TO_PHYS(kernstart));
 	kernendpfn = atop(ALPHA_K0SEG_TO_PHYS(kernend));
 #ifdef SIMOS
diff --git a/sys/alpha/alpha/pmap.c b/sys/alpha/alpha/pmap.c
index 08f98836c07e..40289a976c29 100644
--- a/sys/alpha/alpha/pmap.c
+++ b/sys/alpha/alpha/pmap.c
@@ -43,7 +43,7 @@
  *	from:	@(#)pmap.c	7.7 (Berkeley)	5/12/91
  *	from:	i386 Id: pmap.c,v 1.193 1998/04/19 15:22:48 bde Exp
  *		with some ideas from NetBSD's alpha pmap
- *	$Id: pmap.c,v 1.20 1999/04/23 20:29:58 dt Exp $
+ *	$Id: pmap.c,v 1.21 1999/04/28 15:52:09 dt Exp $
  */
 
 /*
@@ -2169,6 +2169,8 @@ pmap_enter(pmap_t pmap, vm_offset_t va, vm_offset_t pa, vm_prot_t prot,
 		*pte = newpte;
 		if (origpte)
 			pmap_invalidate_page(pmap, va);
+		if (prot & VM_PROT_EXECUTE)
+			alpha_pal_imb();
 	}
 }
 
@@ -2187,7 +2189,8 @@ static vm_page_t
 pmap_enter_quick(pmap_t pmap, vm_offset_t va, vm_offset_t pa, vm_page_t mpte)
 {
 	register pt_entry_t *pte;
-
+	pt_entry_t npte;
+	pv_table_t* ppv;
 
 	/*
 	 * In the case that a page table page is not
@@ -2259,10 +2262,14 @@ pmap_enter_quick(pmap_t pmap, vm_offset_t va, vm_offset_t pa, vm_page_t mpte)
 	 */
 	pmap->pm_stats.resident_count++;
 
+	ppv = pa_to_pvh(pa);
+
 	/*
 	 * Now validate mapping with RO protection
 	 */
-	*pte = pmap_phys_to_pte(pa) | PG_V | PG_KRE | PG_URE | PG_MANAGED;
+	*pte = pmap_phys_to_pte(pa) | PG_V | PG_KRE | PG_URE | PG_MANAGED |
+	    (!(ppv->pv_flags & PV_TABLE_REF) ? (PG_FOR | PG_FOW | PG_FOE) : 0);
+	pmap_invalidate_page(pmap, va);
 
 	return mpte;
 }