From 172b98bfeb4f750505efbdec60ed978a176fdaff Mon Sep 17 00:00:00 2001
From: kn <kn@openbsd.org>
Date: Fri, 2 Sep 2022 08:13:03 +0000
Subject: [PATCH] Add softraid(4) RAID 1C boot support

Equivalent of sys/arch/arm64/stand/efiboot/softraid_arm64.c r1.4:
(commitid: Ka484R3swI5xSRWO) "Add softraid(4) RAID 1C boot support".

Tell the boot loader to decrypt 1C like C volumes and check the number of
disks in 1C like in 1C volumes -- no new code rquired.

Tested on T4-2 guest domains
"Looks reasonable" kettenis
OK stsp

NB: While kernel and boot loader support root on softraid on sparc64,
installboot(8) still needs a pending fix for installations on multi-chunk
softraid volumes.  Until then, the usual installation process will fail on
1C volumes and requires manual fixup.
---
 sys/arch/sparc64/stand/ofwboot/boot.c             | 5 +++--
 sys/arch/sparc64/stand/ofwboot/softraid_sparc64.c | 8 +++++---
 sys/arch/sparc64/stand/ofwboot/vers.c             | 2 +-
 3 files changed, 9 insertions(+), 6 deletions(-)

diff --git a/sys/arch/sparc64/stand/ofwboot/boot.c b/sys/arch/sparc64/stand/ofwboot/boot.c
index 24036d9d4d3..0580f3e25f7 100644
--- a/sys/arch/sparc64/stand/ofwboot/boot.c
+++ b/sys/arch/sparc64/stand/ofwboot/boot.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: boot.c,v 1.39 2022/08/04 09:16:53 kn Exp $	*/
+/*	$OpenBSD: boot.c,v 1.40 2022/09/02 08:13:03 kn Exp $	*/
 /*	$NetBSD: boot.c,v 1.3 2001/05/31 08:55:19 mrg Exp $	*/
 /*
  * Copyright (c) 1997, 1999 Eduardo E. Horvath.  All rights reserved.
@@ -366,7 +366,8 @@ srbootdev(const char *bootline)
 			return ENODEV;
 		}
 
-		if (bv->sbv_level == 'C' && bv->sbv_keys == NULL)
+		if ((bv->sbv_level == 'C' || bv->sbv_level == 0x1C) &&
+		    bv->sbv_keys == NULL)
 			if (sr_crypto_unlock_volume(bv) != 0)
 				return EPERM;
 
diff --git a/sys/arch/sparc64/stand/ofwboot/softraid_sparc64.c b/sys/arch/sparc64/stand/ofwboot/softraid_sparc64.c
index 3c279d5df92..6d90419387b 100644
--- a/sys/arch/sparc64/stand/ofwboot/softraid_sparc64.c
+++ b/sys/arch/sparc64/stand/ofwboot/softraid_sparc64.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: softraid_sparc64.c,v 1.5 2020/12/09 18:10:19 krw Exp $	*/
+/*	$OpenBSD: softraid_sparc64.c,v 1.6 2022/09/02 08:13:03 kn Exp $	*/
 
 /*
  * Copyright (c) 2012 Joel Sing <jsing@openbsd.org>
@@ -290,6 +290,7 @@ srprobe(void)
 			break;
 
 		case 1:
+		case 0x1C:
 			if (bv->sbv_chunk_no == bv->sbv_chunks_found)
 				bv->sbv_state = BIOC_SVONLINE;
 			else if (bv->sbv_chunks_found > 0)
@@ -312,7 +313,8 @@ sr_vol_boot_chunk(struct sr_boot_volume *bv)
 {
 	struct sr_boot_chunk *bc = NULL;
 
-	if (bv->sbv_level == 1 || bv->sbv_level == 'C' ) { /* RAID1 or CRYPTO */
+	if (bv->sbv_level == 1 || bv->sbv_level == 'C' ||
+	    bv->sbv_level == 0x1C) {
 		/* Select first online chunk. */
 		SLIST_FOREACH(bc, &bv->sbv_chunks, sbc_link)
 			if (bc->sbc_state == BIOC_SDONLINE)
@@ -368,7 +370,7 @@ sr_strategy(struct sr_boot_volume *bv, int sr_handle, int rw, daddr_t blk,
 		err = strategy(&ofdev, rw, blk, size, buf, rsize);
 		return err;
 
-	} else if (bv->sbv_level == 'C') {
+	} else if (bv->sbv_level == 'C' || bv->sbv_level == 0x1C) {
 		/* XXX - select correct key. */
 		aes_xts_setkey(&ctx, (u_char *)bv->sbv_keys, 64);
 
diff --git a/sys/arch/sparc64/stand/ofwboot/vers.c b/sys/arch/sparc64/stand/ofwboot/vers.c
index c431a3be21d..7494fde8a78 100644
--- a/sys/arch/sparc64/stand/ofwboot/vers.c
+++ b/sys/arch/sparc64/stand/ofwboot/vers.c
@@ -1 +1 @@
-const char version[] = "1.23";
+const char version[] = "1.24";
-- 
2.20.1