/

2005-01-11  Neal H. Walfield  <neal@gnu.org>

	* libhurd-mm: New directory.
	* Makefile.am (SUBDIRS): Add libhurd-mm.
	* configure.ac: Add include for libhurd-mm/headers.m4.
	 (AC_CONFIG_FILES): Add libhurd-mm/Makefile.

deva/

2005-01-11  Neal H. Walfield  <neal@gnu.org>

	* Makefile.am (deva_SOURCES): Remove physmem-user.h and
	physmem-user.c.
	(deva_LDADD): Add ../libhurd-btree/libhurd-btree.a and
	../libhurd-mm/libhurd-mm.a.
	* ia32-cmain.c: Include <hurd/mm.h>.
	(pager_tid): New global variable.
	(cmain): Allocate a thread that the memory management subsystem
	can use as the pager thread.  Call hurd_mm_init.  Set the
	PAGER_TID as the current thread's pager.
	* mmap.c: Rewrite to use new interfaces.
	* physmem-user.h: Remove obsolete file.
	* physmem-user.c: Likewise.

libhurd-mm/

2005-01-11  Neal H. Walfield  <neal@gnu.org>

	* Makefile.am: Initial check in.
	* README: Likewise.
	* frame.c: Likewise.
	* headers.m4: Likewise.
	* map.c: Likewise.
	* mm-init.c: Likewise.
	* mm.h: Likewise.
	* pager.c: Likewise.
	* physmem-user.c: Likewise.
	* physmem-user.h: Likewise.
	* priv.h: Likewise.
	* vm.c: Likewise.
	* vm.h: Likewise.

physmem/

2005-01-11  Neal H. Walfield  <neal@gnu.org>

	* Makefile.am (physmem_SOURCES): Add frame-entry.c and frame.c
	(physmem_LDADD): Add ../libhurd-btree/libhurd-btree.a.
	* frame-entry.c: New file.
	* frame.c: New file.
	* README: Rewrite.
	* container.c: Likewise.
	* physmem.h: Likewise.
	* physmem.c (create_bootstrap_caps): Change container_t to struct
	container *.

task/

2005-01-11  Neal H. Walfield  <neal@gnu.org>

	* Makefile.am (task_SOURCES): Remove physmem-user.h and
	physmem-user.c.
	(task_LDADD): Add ../libhurd-btree/libhurd-btree.a and
	../libhurd-mm/libhurd-mm.a.
	* ia32-cmain.c: Include <hurd/mm.h>.
	(pager_tid): New global variable.
	(cmain): Allocate a thread that the memory management subsystem
	can use as the pager thread.  Call hurd_mm_init.  Set the
	PAGER_TID as the current thread's pager.
	* mmap.c: Rewrite to use new interfaces.
	* physmem-user.h: Remove obsolete file.
	* physmem-user.c: Likewise.

wortel/

2005-01-11  Neal H. Walfield  <neal@gnu.org>

	* startup.c (physmem_map): Rename . . .
	(allocate): . . . to this.  Rewrite it.
	(map): New function.
	(cmain): Call map, not physmem_map.
	* wortel.c (setup_components): Allocate an extra thread for the
	task server.
	(start_elf): Update assert.

1 files changed, 94 insertions, 0 deletions

diff --git a/libhurd-mm/mm-init.c b/libhurd-mm/mm-init.c
new file mode 100644
index 0000000..7abac2e
--- /dev/null
+++ b/libhurd-mm/mm-init.c
@@ -0,0 +1,94 @@
+/* mm-init.h - Memory management initialization.
+   Copyright (C) 2004, 2005 Free Software Foundation, Inc.
+   Written by Neal H. Walfield <neal@gnu.org>.
+
+   This file is part of the GNU Hurd.
+
+   The GNU Hurd is free software; you can redistribute it and/or
+   modify it under the terms of the GNU General Public License as
+   published by the Free Software Foundation; either version 2, or (at
+   your option) any later version.
+   
+   The GNU Hurd is distributed in the hope that it will be useful, but
+   WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   General Public License for more details.
+   
+   You should have received a copy of the GNU General Public License
+   along with the GNU Hurd; see the file COPYING.  If not, write to
+   the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139,
+   USA.  */
+
+#if HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include <assert.h>
+#include <errno.h>
+#include <stdbool.h>
+#include <l4.h>
+#include <hurd/startup.h>
+
+#include "mm.h"
+#include "vm.h"
+
+#include "priv.h"
+
+/* Physmem's server thread.  */
+l4_thread_id_t physmem;
+
+/* By default, we allocate all anonymous memory in this container.  */
+hurd_pm_container_t default_container;
+
+/* True once the MM is up and running.  */
+int mm_init_done;
+
+/* Initialized by the machine-specific startup-code.  */
+extern struct hurd_startup_data *__hurd_startup_data;
+
+/* Initialize the memory management subsystem.  */
+void
+hurd_mm_init (l4_thread_id_t pager_tid)
+{
+  error_t err;
+  uintptr_t stack;
+
+  /* FIXME: The image server may not be (and will likely not be)
+     physmem.  */
+  physmem = __hurd_startup_data->image.server;
+
+  /* Create the primary anonymous memory container.  */
+  /* FIXME: We use the image cap handle as the memory control object.
+     This is wrong.  */
+  err = hurd_pm_container_create (__hurd_startup_data->image.cap_handle,
+				  &default_container);
+  assert_perror (err);
+
+  swap_store.server = physmem;
+  swap_store.handle = default_container;
+  hurd_btree_frame_tree_init (&swap_store.frames);
+
+  /* Initialize the mapping database.  */
+  map_init ();
+
+  /* The mapping database is now bootstrapped.  */
+  mm_init_done = 1;
+
+  /* Allocate a stack for the pager thread.  */
+  err = hurd_vm_allocate (&stack, getpagesize (), 0, 1);
+  if (err)
+    panic ("Unable to allocate a stack for the pager thread.\n");
+
+  /* Start it up.  */
+  l4_start_sp_ip (pager_tid, stack + getpagesize (), (l4_word_t) pager);
+
+  /* XXX: EVIL.  If a thread causes a page fault before its pager is
+     waiting for faults, the pager will not get the correct message
+     contents.  This is an evil work around to make sure that the
+     pager is up before we return.  */
+  int i;
+  for (i = 0; i < 100; i ++)
+    l4_yield ();
+
+  l4_set_pager (pager_tid);
+}