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0b7af917e2
parted/0064-GPT-add-support-for-PReP-GUID.patch
Brian C. Lane 0b7af917e2 - Rebase on new upstream master commit cc382c3 
- Drop patches incorporated into upstream
- Still adds the various DASD patches
2014-04-08 11:46:37 -07:00

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From d151cc20af79c89383ffacc89c1f646f831fc3e6 Mon Sep 17 00:00:00 2001
From: Daniel Battaiola Kreling <dbkreling@br.ibm.com>
Date: Mon, 7 Oct 2013 11:51:50 +0530
Subject: [PATCH 64/89] GPT: add support for PReP GUID
PReP (PowerPC Reference Platform) boot partition is the first partition used in
PowerPC platform for containing the bootable kernel or bootloader. The firmware
searches for this partition and jumps to it for booting. So far no GUID was
specified for this partition type and hence booting from GPT disk was not
supported on this platform. A new GUID 9e1a2d38-c612-4316-aa26-8b49521e5a8b for
PReP partition is proposed to be included in GPT.
---
NEWS | 3 +++
doc/parted.texi | 2 +-
libparted/labels/gpt.c | 38 ++++++++++++++++++++++++++++++++++++++
3 files changed, 42 insertions(+), 1 deletion(-)
diff --git a/NEWS b/NEWS
index cb725e7..22e6109 100644
--- a/NEWS
+++ b/NEWS
@@ -8,6 +8,9 @@ GNU parted NEWS -*- outline -*-
or are longer than the disk. This allows you to use parted to
repair the problem.
+ Add support for prep flag to GPT to select PowerPC Reference Platform
+ boot partition type.
+
** Bug Fixes
Avoid generating udev add/remove events for all unmodified partitions
diff --git a/doc/parted.texi b/doc/parted.texi
index 008c383..25a02c7 100644
--- a/doc/parted.texi
+++ b/doc/parted.texi
@@ -865,7 +865,7 @@ physical volume.
by the Linux/PA-RISC boot loader, palo.
@item PREP
-(MS-DOS) - this flag can be enabled so that the partition can be used
+(MS-DOS, GPT) - this flag can be enabled so that the partition can be used
as a PReP boot partition on PowerPC PReP or IBM RS6K/CHRP hardware.
@item DIAG
diff --git a/libparted/labels/gpt.c b/libparted/labels/gpt.c
index bcf7812..66c96e6 100644
--- a/libparted/labels/gpt.c
+++ b/libparted/labels/gpt.c
@@ -146,6 +146,10 @@ typedef struct
((efi_guid_t) { PED_CPU_TO_LE32 (0x5265636F), PED_CPU_TO_LE16 (0x7665), \
PED_CPU_TO_LE16 (0x11AA), 0xaa, 0x11, \
{ 0x00, 0x30, 0x65, 0x43, 0xEC, 0xAC }})
+#define PARTITION_PREP_GUID \
+ ((efi_guid_t) { PED_CPU_TO_LE32 (0x9e1a2d38), PED_CPU_TO_LE16 (0xc612), \
+ PED_CPU_TO_LE16 (0x4316), 0xaa, 0x26, \
+ { 0x8b, 0x49, 0x52, 0x1e, 0x5a, 0x8b }})
struct __attribute__ ((packed)) _GuidPartitionTableHeader_t
{
@@ -289,6 +293,7 @@ typedef struct _GPTPartitionData
int atvrecv;
int msftrecv;
int legacy_boot;
+ int prep;
} GPTPartitionData;
static PedDiskType gpt_disk_type;
@@ -803,6 +808,7 @@ _parse_part_entry (PedDisk *disk, GuidPartitionEntry_t *pte)
= gpt_part_data->msftdata
= gpt_part_data->msftrecv
= gpt_part_data->legacy_boot
+ = gpt_part_data->prep
= gpt_part_data->bios_grub = gpt_part_data->atvrecv = 0;
if (pte->Attributes.RequiredToFunction & 0x1)
@@ -828,6 +834,8 @@ _parse_part_entry (PedDisk *disk, GuidPartitionEntry_t *pte)
gpt_part_data->msftrecv = 1;
else if (!guid_cmp (gpt_part_data->type, PARTITION_APPLE_TV_RECOVERY_GUID))
gpt_part_data->atvrecv = 1;
+ else if (!guid_cmp (gpt_part_data->type, PARTITION_PREP_GUID))
+ gpt_part_data->prep = 1;
return part;
}
@@ -1344,6 +1352,7 @@ gpt_partition_new (const PedDisk *disk,
gpt_part_data->msftrecv = 0;
gpt_part_data->atvrecv = 0;
gpt_part_data->legacy_boot = 0;
+ gpt_part_data->prep = 0;
uuid_generate ((unsigned char *) &gpt_part_data->uuid);
swap_uuid_and_efi_guid ((unsigned char *) (&gpt_part_data->uuid));
memset (gpt_part_data->name, 0, sizeof gpt_part_data->name);
@@ -1417,6 +1426,11 @@ gpt_partition_set_system (PedPartition *part,
gpt_part_data->type = PARTITION_RAID_GUID;
return 1;
}
+ if (gpt_part_data->prep)
+ {
+ gpt_part_data->type = PARTITION_PREP_GUID;
+ return 1;
+ }
if (gpt_part_data->boot)
{
gpt_part_data->type = PARTITION_SYSTEM_GUID;
@@ -1593,6 +1607,7 @@ gpt_partition_set_flag (PedPartition *part, PedPartitionFlag flag, int state)
= gpt_part_data->msftres
= gpt_part_data->msftdata
= gpt_part_data->msftrecv
+ = gpt_part_data->prep
= gpt_part_data->atvrecv = 0;
return gpt_partition_set_system (part, part->fs_type);
case PED_PARTITION_BIOS_GRUB:
@@ -1605,6 +1620,7 @@ gpt_partition_set_flag (PedPartition *part, PedPartitionFlag flag, int state)
= gpt_part_data->msftres
= gpt_part_data->msftdata
= gpt_part_data->msftrecv
+ = gpt_part_data->prep
= gpt_part_data->atvrecv = 0;
return gpt_partition_set_system (part, part->fs_type);
case PED_PARTITION_RAID:
@@ -1617,6 +1633,7 @@ gpt_partition_set_flag (PedPartition *part, PedPartitionFlag flag, int state)
= gpt_part_data->msftres
= gpt_part_data->msftdata
= gpt_part_data->msftrecv
+ = gpt_part_data->prep
= gpt_part_data->atvrecv = 0;
return gpt_partition_set_system (part, part->fs_type);
case PED_PARTITION_LVM:
@@ -1629,6 +1646,7 @@ gpt_partition_set_flag (PedPartition *part, PedPartitionFlag flag, int state)
= gpt_part_data->msftres
= gpt_part_data->msftdata
= gpt_part_data->msftrecv
+ = gpt_part_data->prep
= gpt_part_data->atvrecv = 0;
return gpt_partition_set_system (part, part->fs_type);
case PED_PARTITION_HPSERVICE:
@@ -1641,6 +1659,7 @@ gpt_partition_set_flag (PedPartition *part, PedPartitionFlag flag, int state)
= gpt_part_data->msftres
= gpt_part_data->msftdata
= gpt_part_data->msftrecv
+ = gpt_part_data->prep
= gpt_part_data->atvrecv = 0;
return gpt_partition_set_system (part, part->fs_type);
case PED_PARTITION_MSFT_RESERVED:
@@ -1653,6 +1672,7 @@ gpt_partition_set_flag (PedPartition *part, PedPartitionFlag flag, int state)
= gpt_part_data->hp_service
= gpt_part_data->msftdata
= gpt_part_data->msftrecv
+ = gpt_part_data->prep
= gpt_part_data->atvrecv = 0;
return gpt_partition_set_system (part, part->fs_type);
case PED_PARTITION_MSFT_DATA:
@@ -1665,6 +1685,7 @@ gpt_partition_set_flag (PedPartition *part, PedPartitionFlag flag, int state)
= gpt_part_data->hp_service
= gpt_part_data->msftres
= gpt_part_data->msftrecv
+ = gpt_part_data->prep
= gpt_part_data->atvrecv = 0;
gpt_part_data->msftdata = 1;
} else {
@@ -1681,6 +1702,7 @@ gpt_partition_set_flag (PedPartition *part, PedPartitionFlag flag, int state)
= gpt_part_data->hp_service
= gpt_part_data->msftdata
= gpt_part_data->msftres
+ = gpt_part_data->prep
= gpt_part_data->atvrecv = 0;
return gpt_partition_set_system (part, part->fs_type);
case PED_PARTITION_APPLE_TV_RECOVERY:
@@ -1693,8 +1715,21 @@ gpt_partition_set_flag (PedPartition *part, PedPartitionFlag flag, int state)
= gpt_part_data->hp_service
= gpt_part_data->msftres
= gpt_part_data->msftdata
+ = gpt_part_data->prep
= gpt_part_data->msftrecv = 0;
return gpt_partition_set_system (part, part->fs_type);
+ case PED_PARTITION_PREP:
+ gpt_part_data->prep = state;
+ if (state)
+ gpt_part_data->boot
+ = gpt_part_data->raid
+ = gpt_part_data->lvm
+ = gpt_part_data->bios_grub
+ = gpt_part_data->hp_service
+ = gpt_part_data->msftres
+ = gpt_part_data->msftrecv
+ = gpt_part_data->atvrecv = 0;
+ return gpt_partition_set_system (part, part->fs_type);
case PED_PARTITION_HIDDEN:
gpt_part_data->hidden = state;
return 1;
@@ -1741,6 +1776,8 @@ gpt_partition_get_flag (const PedPartition *part, PedPartitionFlag flag)
return gpt_part_data->hidden;
case PED_PARTITION_LEGACY_BOOT:
return gpt_part_data->legacy_boot;
+ case PED_PARTITION_PREP:
+ return gpt_part_data->prep;
case PED_PARTITION_SWAP:
case PED_PARTITION_LBA:
case PED_PARTITION_ROOT:
@@ -1767,6 +1804,7 @@ gpt_partition_is_flag_available (const PedPartition *part,
case PED_PARTITION_APPLE_TV_RECOVERY:
case PED_PARTITION_HIDDEN:
case PED_PARTITION_LEGACY_BOOT:
+ case PED_PARTITION_PREP:
return 1;
case PED_PARTITION_SWAP:
case PED_PARTITION_ROOT:
--
1.8.5.3
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