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* [PATCH] NetBSD mmap support
@ 2009-08-25 22:52 Vladimir 'phcoder' Serbinenko
  2009-08-25 23:13 ` Robert Millan
  0 siblings, 1 reply; 4+ messages in thread
From: Vladimir 'phcoder' Serbinenko @ 2009-08-25 22:52 UTC (permalink / raw)
  To: The development of GRUB 2

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-- 
Regards
Vladimir 'phcoder' Serbinenko

Personal git repository: http://repo.or.cz/w/grub2/phcoder.git

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diff --git a/ChangeLog b/ChangeLog
index 1de68ad..6171d02 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,14 @@
 2009-08-25  Vladimir Serbinenko  <phcoder@gmail.com>
 
+	NetBSD memory map support.
+
+	* include/grub/i386/bsd.h (NETBSD_BTINFO_MEMMAP): New definition.
+	(grub_netbsd_btinfo_mmap_header): New structure.
+	(grub_netbsd_btinfo_mmap_entry): Likewise.
+	* loader/i386/bsd.c (grub_netbsd_boot): Pass memory map.
+
+2009-08-25  Vladimir Serbinenko  <phcoder@gmail.com>
+
 	Cleanup NetBSD root support.
 
 	* loader/i386/bsd.c (grub_netbsd_boot): Remove call to
diff --git a/include/grub/i386/bsd.h b/include/grub/i386/bsd.h
index 2939035..8ffaf7d 100644
--- a/include/grub/i386/bsd.h
+++ b/include/grub/i386/bsd.h
@@ -203,6 +203,7 @@ struct grub_netbsd_bootinfo
 #define NETBSD_BTINFO_BOOTPATH		0
 #define NETBSD_BTINFO_ROOTDEVICE	1
 #define NETBSD_BTINFO_BOOTDISK		3
+#define NETBSD_BTINFO_MEMMAP		9
 
 struct grub_netbsd_btinfo_common
 {
@@ -210,6 +211,23 @@ struct grub_netbsd_btinfo_common
   int type;
 };
 
+struct grub_netbsd_btinfo_mmap_header
+{
+  struct grub_netbsd_btinfo_common common;
+  grub_uint32_t count;
+};
+
+struct grub_netbsd_btinfo_mmap_entry
+{
+  grub_uint64_t addr;
+  grub_uint64_t len;
+#define	NETBSD_MMAP_AVAILABLE	1
+#define	NETBSD_MMAP_RESERVED 	2
+#define	NETBSD_MMAP_ACPI	3
+#define	NETBSD_MMAP_NVS 	4
+  grub_uint32_t type;
+};
+
 struct grub_netbsd_btinfo_bootpath
 {
   struct grub_netbsd_btinfo_common common;
diff --git a/loader/i386/bsd.c b/loader/i386/bsd.c
index 0b9a2b4..6b532f2 100644
--- a/loader/i386/bsd.c
+++ b/loader/i386/bsd.c
@@ -626,30 +626,87 @@ static grub_err_t
 grub_netbsd_boot (void)
 {
   struct grub_netbsd_bootinfo *bootinfo;
+  int count = 0;
+  struct grub_netbsd_btinfo_mmap_header *mmap;
+  struct grub_netbsd_btinfo_mmap_entry *pm;
+  void *curarg;
+
+  auto int NESTED_FUNC_ATTR count_hook (grub_uint64_t, grub_uint64_t, grub_uint32_t);
+  int NESTED_FUNC_ATTR count_hook (grub_uint64_t addr __attribute__ ((unused)),
+				   grub_uint64_t size __attribute__ ((unused)),
+				   grub_uint32_t type __attribute__ ((unused)))
+  {
+    count++;
+    return 0;
+  }
+
+  auto int NESTED_FUNC_ATTR fill_hook (grub_uint64_t, grub_uint64_t, grub_uint32_t);
+  int NESTED_FUNC_ATTR fill_hook (grub_uint64_t addr, grub_uint64_t size, grub_uint32_t type)
+  {
+    pm->addr = addr;
+    pm->len = size;
+
+    switch (type)
+      {
+      case GRUB_MACHINE_MEMORY_AVAILABLE:
+	pm->type = NETBSD_MMAP_AVAILABLE;
+	break;
+
+      case GRUB_MACHINE_MEMORY_ACPI:
+	pm->type = NETBSD_MMAP_ACPI;
+	break;
+
+      case GRUB_MACHINE_MEMORY_NVS:
+	pm->type = NETBSD_MMAP_NVS;
+	break;
+
+      default:
+	pm->type = NETBSD_MMAP_RESERVED;
+	break;
+      }
+    pm++;
+
+    return 0;
+  }
+
+  grub_mmap_iterate (count_hook);
 
   if (kern_end + sizeof (struct grub_netbsd_btinfo_rootdevice)
-      + sizeof (struct grub_netbsd_bootinfo) > grub_os_area_addr
-      + grub_os_area_size)
+      + sizeof (struct grub_netbsd_bootinfo)
+      + sizeof (struct grub_netbsd_btinfo_mmap_header)
+      + count * sizeof (struct grub_netbsd_btinfo_mmap_entry)
+      > grub_os_area_addr + grub_os_area_size)
     return grub_error (GRUB_ERR_OUT_OF_MEMORY, "No memory for boot info.");
 
+  curarg = mmap = (struct grub_netbsd_btinfo_mmap_header *) kern_end;
+  pm = (struct grub_netbsd_btinfo_mmap_entry *) (mmap + 1);
+
+  grub_mmap_iterate (fill_hook);
+  mmap->common.type = NETBSD_BTINFO_MEMMAP;
+  mmap->common.len = (char *) pm - (char *) mmap;
+  mmap->count = count;
+  curarg = pm;
+
   if (netbsd_root)
     {
       struct grub_netbsd_btinfo_rootdevice *rootdev;
 
-      rootdev = (struct grub_netbsd_btinfo_rootdevice *) kern_end;
+      rootdev = (struct grub_netbsd_btinfo_rootdevice *) curarg;
 
       rootdev->common.len = sizeof (struct grub_netbsd_btinfo_rootdevice);
       rootdev->common.type = NETBSD_BTINFO_ROOTDEVICE;
       grub_strncpy (rootdev->devname, netbsd_root, sizeof (rootdev->devname));
 
       bootinfo = (struct grub_netbsd_bootinfo *) (rootdev + 1);
-      bootinfo->bi_count = 1;
-      bootinfo->bi_data[0] = rootdev;
+      bootinfo->bi_count = 2;
+      bootinfo->bi_data[0] = mmap;
+      bootinfo->bi_data[1] = rootdev;
     }
   else
     {
-      bootinfo = (struct grub_netbsd_bootinfo *) kern_end;
-      bootinfo->bi_count = 0;
+      bootinfo = (struct grub_netbsd_bootinfo *) curarg;
+      bootinfo->bi_count = 1;
+      bootinfo->bi_data[0] = mmap;
     }
 
   grub_unix_real_boot (entry, bootflags, 0, bootinfo,

^ permalink raw reply related	[flat|nested] 4+ messages in thread
end of thread, other threads:[~2009-08-26  0:22 UTC | newest]

Thread overview: 4+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2009-08-25 22:52 [PATCH] NetBSD mmap support Vladimir 'phcoder' Serbinenko
2009-08-25 23:13 ` Robert Millan
2009-08-25 23:17   ` Vladimir 'phcoder' Serbinenko
2009-08-26  0:21     ` Robert Millan

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