g_part,mkimg: Add additional GPT partition types

Add the hifive-fsbl, hifive-bbl, and xbootldr aliases to mkimg(1).
Add the xbootldr alias to geom(4), and thus gpart(8).

The "hifive" partition types are defined and used by various RISC-V SBCs
for locating firmware.

"xbootldr", or the Extended Boot Loader Partition is defined here:
https://uapi-group.org/specifications/specs/boot_loader_specification/

Reviewed by:	emaste, markj, mhorne
MFC after:	1 week
Differential Revision:	https://reviews.freebsd.org/D56784

sys/geom/part/g_part.c

@@ -135,6 +135,7 @@ struct g_part_alias_list {
 	{ "vmware-vmfs", G_PART_ALIAS_VMFS },
 	{ "vmware-vmkdiag", G_PART_ALIAS_VMKDIAG },
 	{ "vmware-vsanhdr", G_PART_ALIAS_VMVSANHDR },
+	{ "xbootldr", G_PART_ALIAS_XBOOTLDR },
 };
 
 SYSCTL_DECL(_kern_geom);

sys/geom/part/g_part.h

@@ -108,6 +108,8 @@ enum g_part_alias {
 	G_PART_ALIAS_VMKDIAG,		/* A VMware vmkDiagnostic partition entry */
 	G_PART_ALIAS_VMRESERVED,	/* A VMware reserved partition entry */
 	G_PART_ALIAS_VMVSANHDR,		/* A VMware vSAN header partition entry */
+	G_PART_ALIAS_XBOOTLDR,		/* A Systemd/Linux extended boot partition
+					   Also used by visionfive2 as part of the boot sequence */
 	/* Keep the following last */
 	G_PART_ALIAS_COUNT
 };

sys/geom/part/g_part_gpt.c

@@ -230,6 +230,7 @@ static struct uuid gpt_uuid_vmfs = GPT_ENT_TYPE_VMFS;
 static struct uuid gpt_uuid_vmkdiag = GPT_ENT_TYPE_VMKDIAG;
 static struct uuid gpt_uuid_vmreserved = GPT_ENT_TYPE_VMRESERVED;
 static struct uuid gpt_uuid_vmvsanhdr = GPT_ENT_TYPE_VMVSANHDR;
+static struct uuid gpt_uuid_xbootldr = GPT_ENT_TYPE_XBOOTLDR;
 
 static struct g_part_uuid_alias {
 	struct uuid *uuid;
@@ -302,6 +303,7 @@ static struct g_part_uuid_alias {
 	{ &gpt_uuid_vmkdiag,		G_PART_ALIAS_VMKDIAG,		 0 },
 	{ &gpt_uuid_vmreserved,		G_PART_ALIAS_VMRESERVED,	 0 },
 	{ &gpt_uuid_vmvsanhdr,		G_PART_ALIAS_VMVSANHDR,		 0 },
+	{ &gpt_uuid_xbootldr,		G_PART_ALIAS_XBOOTLDR,		 0 },
 	{ NULL, 0, 0 }
 };
 

sys/sys/disk/gpt.h

@@ -261,6 +261,8 @@ CTASSERT(sizeof(struct gpt_ent) == 128);
 
 #define GPT_ENT_TYPE_U_BOOT_ENV		\
 	{0x3de21764,0x95bd,0x54bd,0xa5,0xc3,{0x4a,0xbe,0x78,0x6f,0x38,0xa8}}
+#define GPT_ENT_TYPE_XBOOTLDR         \
+        {0xbc13c2ff,0x59e6,0x4262,0xa3,0x52,{0xb2,0x75,0xfd,0x6f,0x71,0x72}}
 
 /*
  * Boot partition used by GRUB 2.

usr.bin/mkimg/gpt.c

@@ -52,6 +52,9 @@ static mkimg_uuid_t gpt_uuid_freebsd_zfs = GPT_ENT_TYPE_FREEBSD_ZFS;
 static mkimg_uuid_t gpt_uuid_mbr = GPT_ENT_TYPE_MBR;
 static mkimg_uuid_t gpt_uuid_ms_basic_data = GPT_ENT_TYPE_MS_BASIC_DATA;
 static mkimg_uuid_t gpt_uuid_prep_boot = GPT_ENT_TYPE_PREP_BOOT;
+static mkimg_uuid_t gpt_uuid_hifive_bbl = GPT_ENT_TYPE_HIFIVE_BBL;
+static mkimg_uuid_t gpt_uuid_xbootldr = GPT_ENT_TYPE_XBOOTLDR;
+static mkimg_uuid_t gpt_uuid_hifive_fsbl = GPT_ENT_TYPE_HIFIVE_FSBL;
 
 static struct mkimg_alias gpt_aliases[] = {
     {	ALIAS_EFI, ALIAS_PTR2TYPE(&gpt_uuid_efi) },
@@ -65,6 +68,9 @@ static struct mkimg_alias gpt_aliases[] = {
     {	ALIAS_MBR, ALIAS_PTR2TYPE(&gpt_uuid_mbr) },
     {	ALIAS_NTFS, ALIAS_PTR2TYPE(&gpt_uuid_ms_basic_data) },
     {	ALIAS_PPCBOOT, ALIAS_PTR2TYPE(&gpt_uuid_prep_boot) },
+    {	ALIAS_HIFIVE_BBL, ALIAS_PTR2TYPE(&gpt_uuid_hifive_bbl) },
+    {	ALIAS_XBOOTLDR, ALIAS_PTR2TYPE(&gpt_uuid_xbootldr) },
+    {	ALIAS_HIFIVE_FSBL, ALIAS_PTR2TYPE(&gpt_uuid_hifive_fsbl) },
     {	ALIAS_NONE, 0 }		/* Keep last! */
 };
 

usr.bin/mkimg/scheme.c

@@ -58,6 +58,9 @@ static struct {
 	{ "mbr", ALIAS_MBR },
 	{ "ntfs", ALIAS_NTFS },
 	{ "prepboot", ALIAS_PPCBOOT },
+	{ "hifive-bbl", ALIAS_HIFIVE_BBL },
+	{ "xbootldr", ALIAS_XBOOTLDR },
+	{ "hifive-fsbl", ALIAS_HIFIVE_FSBL },
 	{ NULL, ALIAS_NONE }		/* Keep last! */
 };
 

usr.bin/mkimg/scheme.h

@@ -47,6 +47,9 @@ enum alias {
 	ALIAS_MBR,
 	ALIAS_NTFS,
 	ALIAS_PPCBOOT,
+	ALIAS_HIFIVE_BBL,
+	ALIAS_XBOOTLDR,
+	ALIAS_HIFIVE_FSBL,
 	/* end */
 	ALIAS_COUNT		/* Keep last! */
 };