[src/trunk]: src/sys/stand/efiboot add basic raidframe support to efiboot.

[mrg <mrg%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/53bdb4a3a10c
branches:  trunk
changeset: 1021317:53bdb4a3a10c
user:      mrg <mrg%NetBSD.org@localhost>
date:      Wed May 26 09:42:36 2021 +0000

description:
add basic raidframe support to efiboot.

if raid disklabel or gpt is found, add this partition with
the offset/size adjusted by RF_PROTECTED_SECTORS.  note

don't le32toh() the disklabel.  if it was wrong-endian, then
getdisklabel() will have swapped it.

ok jmcneill thorpej.

diffstat:

 sys/stand/efiboot/efiblock.c |  21 ++++++++++++++++++---
 sys/stand/efiboot/version    |   3 ++-
 2 files changed, 20 insertions(+), 4 deletions(-)

diffs (77 lines):

diff -r 9f74be7ec398 -r 53bdb4a3a10c sys/stand/efiboot/efiblock.c
--- a/sys/stand/efiboot/efiblock.c      Wed May 26 08:23:18 2021 +0000
+++ b/sys/stand/efiboot/efiblock.c      Wed May 26 09:42:36 2021 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: efiblock.c,v 1.10 2020/11/28 15:24:05 jmcneill Exp $ */
+/* $NetBSD: efiblock.c,v 1.11 2021/05/26 09:42:36 mrg Exp $ */
 
 /*-
  * Copyright (c) 2016 Kimihiro Nonaka <nonaka%netbsd.org@localhost>
@@ -38,6 +38,13 @@
 #include "efiboot.h"
 #include "efiblock.h"
 
+/*
+ * The raidframe support is basic.  Ideally, it should be expanded to
+ * consider raid volumes a first-class citizen like the x86 efiboot does,
+ * but for now, we simply assume each RAID is potentially bootable.
+ */
+#define        RF_PROTECTED_SECTORS    64      /* XXX refer to <.../rf_optnames.h> */
+
 static EFI_HANDLE *efi_block;
 static UINTN efi_nblock;
 static struct efi_block_part *efi_block_booted = NULL;
@@ -217,6 +224,10 @@
                case FS_MSDOS:
                case FS_BSDLFS:
                        break;
+               case FS_RAID:
+                       p->p_size -= RF_PROTECTED_SECTORS;
+                       p->p_offset += RF_PROTECTED_SECTORS;
+                       break;
                default:
                        continue;
                }
@@ -225,7 +236,7 @@
                bpart->index = n;
                bpart->bdev = bdev;
                bpart->type = EFI_BLOCK_PART_DISKLABEL;
-               bpart->disklabel.secsize = le32toh(d.d_secsize);
+               bpart->disklabel.secsize = d.d_secsize;
                bpart->disklabel.part = *p;
                efi_block_generate_hash_mbr(bpart, mbr);
                TAILQ_INSERT_TAIL(&bdev->partitions, bpart, entries);
@@ -310,6 +321,10 @@
        bpart->type = EFI_BLOCK_PART_GPT;
        bpart->gpt.fstype = fstype;
        bpart->gpt.ent = *ent;
+       if (fstype == FS_RAID) {
+               bpart->gpt.ent.ent_lba_start += RF_PROTECTED_SECTORS;
+               bpart->gpt.ent.ent_lba_end -= RF_PROTECTED_SECTORS;
+       }
        memcpy(bpart->hash, ent->ent_guid, sizeof(bpart->hash));
        TAILQ_INSERT_TAIL(&bdev->partitions, bpart, entries);
 
@@ -436,7 +451,7 @@
                                        fstype = FS_ISO9660;
                                        break;
                                }
-                               if (fstype == FS_BSDFFS || fstype == FS_ISO9660) {
+                               if (fstype == FS_BSDFFS || fstype == FS_ISO9660 || fstype == FS_RAID) {
                                        char devname[9];
                                        snprintf(devname, sizeof(devname), "hd%u%c", bdev->index, bpart->index + 'a');
                                        set_default_device(devname);
diff -r 9f74be7ec398 -r 53bdb4a3a10c sys/stand/efiboot/version
--- a/sys/stand/efiboot/version Wed May 26 08:23:18 2021 +0000
+++ b/sys/stand/efiboot/version Wed May 26 09:42:36 2021 +0000
@@ -1,4 +1,4 @@
-$NetBSD: version,v 1.23 2021/05/21 21:53:15 jmcneill Exp $
+$NetBSD: version,v 1.24 2021/05/26 09:42:36 mrg Exp $
 
 NOTE ANY CHANGES YOU MAKE TO THE EFI BOOTLOADER HERE.  The format of this
 file is important - make sure the entries are appended on end, last item
@@ -27,3 +27,4 @@
 2.4:   Add ISO9660 support.
 2.5:   Recognize the EFI system partion as fstype MSDOS.
 2.6:   Disable ACPI support when booting big endian kernels.
+2.7:   Add basic support for booting from RAID1 volumes.