Add softraid(4) RAID 1C boot support

This is the arm64 adaptation of stsp's (commitid: p55cmsVoEH0fRg77)
"add support for booting from RAID 1C softraid(4) volumes on amd64".

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 SolidRun CEX7
OK stsp

NB:  While kernel and boot loader support root on softraid on arm64,
installboot(8) does not, i.e. default installations still require manual
disk preparation for now.

diff --git a/sys/arch/arm64/stand/efiboot/conf.c b/sys/arch/arm64/stand/efiboot/conf.c
index 7497d21..1e031a3 100644 (file)
--- a/sys/arch/arm64/stand/efiboot/conf.c
+++ b/sys/arch/arm64/stand/efiboot/conf.c
@@ -1,4 +1,4 @@
-/*     $OpenBSD: conf.c,v 1.39 2022/07/30 21:06:54 patrick Exp $       */
+/*     $OpenBSD: conf.c,v 1.40 2022/08/15 13:13:41 kn Exp $    */
 
 /*
  * Copyright (c) 1996 Michael Shalayeff
@@ -46,7 +46,7 @@
 #include "efipxe.h"
 #include "softraid_arm64.h"
 
-const char version[] = "1.11";
+const char version[] = "1.12";
 int    debug = 0;
 
 struct fs_ops file_system[] = {

diff --git a/sys/arch/arm64/stand/efiboot/softraid_arm64.c b/sys/arch/arm64/stand/efiboot/softraid_arm64.c
index 3717730..80a8315 100644 (file)
--- a/sys/arch/arm64/stand/efiboot/softraid_arm64.c
+++ b/sys/arch/arm64/stand/efiboot/softraid_arm64.c
@@ -1,4 +1,4 @@
-/*     $OpenBSD: softraid_arm64.c,v 1.3 2021/06/02 22:44:27 krw Exp $  */
+/*     $OpenBSD: softraid_arm64.c,v 1.4 2022/08/15 13:13:41 kn Exp $   */
 
 /*
  * Copyright (c) 2012 Joel Sing <jsing@openbsd.org>
@@ -285,6 +285,7 @@ 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)
@@ -341,7 +342,7 @@ sr_strategy(struct sr_boot_volume *bv, int rw, daddr_t blk, size_t size,
                /* XXX - If I/O failed we should try another chunk... */
                return dip->strategy(dip, rw, blk, size, buf, rsize);
 
-       } else if (bv->sbv_level == 'C') {
+       } else if (bv->sbv_level == 'C' || bv->sbv_level == 0x1C) {
 
                /* Select first online chunk. */
                SLIST_FOREACH(bc, &bv->sbv_chunks, sbc_link)
@@ -604,7 +605,8 @@ sropen(struct open_file *f, ...)
                return EADAPT;
        }
 
-       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;