In order to read the GPT, modify the partition name strings, and then
write out a new GPT, the disk GUID is needed. While there is an
existing accessor for the partition UUIDs, there is none yet for the
disk GUID.
Changes since v6: none.
Signed-off-by: Alison Chaiken <alison@peloton-tech.com>
Move MAX_SEARCH_PARTITIONS to part.h so that functions in cmd
directory can find it. At the same time, increase the value to
64 since some operating systems use many, and the resources
consumed by a larger value are minimal.
Changes since v6: none.
Signed-off-by: Alison Chaiken <alison@peloton-tech.com>
Similar to what blk_get_device_part_str() does, this patch makes
part_get_info_by_name() return the partition number in case of a match.
This is useful when the partition number is needed and not just the
descriptor.
Signed-off-by: Alex Deymo <deymo@google.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Some architectures require their SPL loader at a fixed address within
the first 16KB of the disk. To avoid an overlap with the partition
entries of the EFI partition table, the first safe offset (in bytes,
from the start of the device) for the entries can be set through
CONFIG_EFI_PARTITION_ENTRIES_OFF (via Kconfig)
When formatting a device with an EFI partition table, we may need to
leave a gap between the GPT header (always in LBA 1) and the partition
entries. The GPT header already contains a field to specify the
on-disk location, which has so far always been set to LBA 2. With this
change, a configurable offset will be translated into a LBA address
indicating where to put the entries.
Now also allows an override via device-tree using a config-node (see
doc/device-tree-bindings/config.txt for documentation).
Tested (exporting an internal MMC formatted with this) against Linux,
MacOS X and Windows.
Signed-off-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
[trini: __maybe_unused on config_offset to avoid warning]
Signed-off-by: Tom Rini <trini@konsulko.com>
Change GPT UUID string format from UUID to GUID per specification.
Signed-off-by: Vincent Tinelli <vincent.tinelli@intel.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
the socfpga bootrom supports mmc booting from either a raw image
starting at 0x0, or from a partition of type 0xa2. This patch
adds support for locating the boot image in the first type 0xa2
partition found.
Assigned a partition number of -1 will cause a search for a
partition of type CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_PARTITION_TYPE
and use it to find the u-boot image
Signed-off-by: Dalon Westergreen <dwesterg@gmail.com>
On some cases the first 440 bytes of MBR are used to keep an additional
information for ROM boot loader. 'gpt write' command doesn't preserve
that area and makes boot code gone.
Preserve boot code area when run 'gpt write' command.
Signed-off-by: Vincent Tinelli <vincent.tinelli@intel.com>
Signed-off-by: Brennan Ashton <brn@deako.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
We convert CONFIG_PARTITION_UUIDS to Kconfig first. But in order to cleanly
update all of the config files we must also update CMD_PART and CMD_GPT to also
be in Kconfig in order to avoid complex logic elsewhere to update all of the
config files.
Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Signed-off-by: Patrick Delaunay <patrick.delaunay73@gmail.com>
Signed-off-by: Tom Rini <trini@konsulko.com>
With capacities getting bigger, we can see see messages with negative
numbers like "Capacity: 1907729.0 MB = 1863.0 GB (-387938128 x 512)".
Here the printed LBA is -387938128 when it should have been 3907029168.
To fix this, use the right format when displaying the unsigned integers.
Signed-off-by: Jean-Jacques Hiblot <jjhiblot@ti.com>
Reported-by: Yan Liu <yan-liu@ti.com>
In both DOS and ISO partition tables the same code to create partition name
like "hda1" was repeated.
Code moved to into a new function part_set_generic_name() in part.c and optimized.
Added recognition of MMC and SD types, name is like "mmcsda1".
Signed-off-by: Petr Kulhavy <brain@jikos.cz>
Reviewed-by: Tom Rini <trini@konsulko.com>
Acked-by: Steve Rae <steve.rae@raedomain.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Add special target "mbr" (otherwise configurable via CONFIG_FASTBOOT_MBR_NAME)
to write MBR partition table.
Partitions are now searched using the generic function which finds any
partiiton by name. For MBR the partition names hda1, sda1, etc. are used.
Signed-off-by: Petr Kulhavy <brain@jikos.cz>
Reviewed-by: Tom Rini <trini@konsulko.com>
Acked-by: Steve Rae <steve.rae@raedomain.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
So far partition search by name has been supported only on the EFI partition
table. This patch extends the search to all partition tables.
Rename part_get_info_efi_by_name() to part_get_info_by_name(), move it from
part_efi.c into part.c and make it a generic function which traverses all part
drivers and searches all partitions (in the order given by the linked list).
For this a new variable struct part_driver.max_entries is added, which limits
the number of partitions searched. For EFI this was GPT_ENTRY_NUMBERS.
Similarly the limit is defined for DOS, ISO, MAC and AMIGA partition tables.
Signed-off-by: Petr Kulhavy <brain@jikos.cz>
Reviewed-by: Tom Rini <trini@konsulko.com>
Acked-by: Steve Rae <steve.rae@raedomain.com>
The calculation of "dev_desc->lba - 34 - 1 - offset" is not correct for
size '-', because both fist_usable_lba and last_usable_lba will remain
34 sectors.
We can simply use 0 for size '-' because the part_efi module will decode
the size and auto extend the size to maximum available size.
Signed-off-by: Kever Yang <kever.yang@rock-chips.com>
This fixes a mismatch between the %zu format and the type used on sandbox.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Tom Rini <trini@konsulko.com>
Partitions on the iso el torito partition table interpreter
only start from partition 1. So when printing out the tables,
let's also start counting at 1.
Signed-off-by: Alexander Graf <agraf@suse.de>
the last value acceptable value for offset is last_usable_lba + 1
and not last_usable_lba - 1
issue found with SDCARD partition commands on u-boot 2015.10
but this part of code don't change
1- create GPT partion on all the card
> gpt write mmc 0 name=test,start=0,size=0
> part list mmc 0
Partition Map for MMC device 0 -- Partition Type: EFI
Part Start LBA End LBA Name
Attributes
Type GUID
Partition GUID
1 0x00000022 0x003a9fde "test"
attrs: 0x0000000000000000
type: ebd0a0a2-b9e5-4433-87c0-68b6b72699c7
type: data
guid: b710eb04-45b9-e94a-8d0b-21458d596f54
=> Start = 0x22*512 = 0x4400
=> Size = (0x003a9fde-0x22+1) * 512 = 0x753F7A00
2- try to recreate the same partition with the next command
(block size:512 bytes = 0x200)
> gpt write mmc 0 name=test,start=0x4400,size=0x753F7A00
Writing GPT: Partitions layout exceds disk size
> gpt write mmc 0 name=test,start=0x4400,size=0x753F7800
Writing GPT: Partitions layout exceds disk size
> gpt write mmc 0 name=test,start=0x4400,size=0x753F7600
Writing GPT: success!
Partition Map for MMC device 0 -- Partition Type: EFI
Part Start LBA End LBA Name
Attributes
Type GUID
Partition GUID
1 0x00000022 0x003a9fdc "test"
attrs: 0x0000000000000000
type: ebd0a0a2-b9e5-4433-87c0-68b6b72699c7
type: data
guid: 36ec30ef-7ca4-cd48-97cd-ea9fb95185d0
the max LBA when the size is indicated (0x003a9fdc) is lower than
when u-boot compute the max allowed value with size=0 (0x003a9fde)
in the code :
/* partition ending lba */
if ((i == parts - 1) && (partitions[i].size == 0))
/* extend the last partition to maximuim */
gpt_e[i].ending_lba = gpt_h->last_usable_lba;
else
gpt_e[i].ending_lba = cpu_to_le64(offset - 1);
so offset = gpt_h->last_usable_lba + 1 is acceptable !
but the test (offset >= last_usable_lba) cause the error
END
Signed-off-by: Patrick Delaunay <patrick.delaunay73@gmail.com>disk: part_efi: fix check of the max partition size
the last value acceptable value for offset is (last_usable_lba + 1)
and not (last_usable_lba - 1)
issue found with SDCARD partition commands on u-boot 2015.10
but this part of code don't change
1- I create GPT partion on all the card (start and size undefined)
> gpt write mmc 0 name=test,start=0,size=0
> part list mmc 0
Partition Map for MMC device 0 -- Partition Type: EFI
Part Start LBA End LBA Name
Attributes
Type GUID
Partition GUID
1 0x00000022 0x003a9fde "test"
attrs: 0x0000000000000000
type: ebd0a0a2-b9e5-4433-87c0-68b6b72699c7
type: data
guid: b710eb04-45b9-e94a-8d0b-21458d596f54
=> Start = 0x22*512 = 0x4400
=> Size = (0x003a9fde-0x22+1) * 512 = 0x753F7A00
2- I try to recreate the same partition with the command gpt write
and with start and size values (block size:512 bytes = 0x200)
> gpt write mmc 0 name=test,start=0x4400,size=0x753F7A00
Writing GPT: Partitions layout exceds disk size
> gpt write mmc 0 name=test,start=0x4400,size=0x753F7800
Writing GPT: Partitions layout exceds disk size
> gpt write mmc 0 name=test,start=0x4400,size=0x753F7600
Writing GPT: success!
I check the partition created :
> part list mmc 0
Partition Map for MMC device 0 -- Partition Type: EFI
Part Start LBA End LBA Name
Attributes
Type GUID
Partition GUID
1 0x00000022 0x003a9fdc "test"
attrs: 0x0000000000000000
type: ebd0a0a2-b9e5-4433-87c0-68b6b72699c7
type: data
guid: 36ec30ef-7ca4-cd48-97cd-ea9fb95185d0
=> but the max LBA when the size is indicated (0x003a9fdc) is lower than
when u-boot compute the max allowed value with size=0 (0x003a9fde)
3- in the code, just after my patch, line 446
/* partition ending lba */
if ((i == parts - 1) && (partitions[i].size == 0))
/* extend the last partition to maximuim */
gpt_e[i].ending_lba = gpt_h->last_usable_lba;
else
gpt_e[i].ending_lba = cpu_to_le64(offset - 1);
so offset = gpt_h->last_usable_lba + 1 is acceptable !
(it the value used when size is 0)
but today the test (offset >= last_usable_lba) cause the error
my patch only solve this issue
END
Signed-off-by: Patrick Delaunay <patrick.delaunay73@gmail.com>
This function is implemented by the legacy block functions now. Drop it.
We cannot yet make sata_dev_desc[] private to common/sata.c as it is used by
the SATA drivers. This will require the SATA interface to be reworked.
Signed-off-by: Simon Glass <sjg@chromium.org>
Instead of calling xx_get_dev() functions for each interface type, use the
new legacy block driver which can provide the device through its interface.
Signed-off-by: Simon Glass <sjg@chromium.org>
This option currently enables both the command and the SCSI functionality.
Rename the existing option to CONFIG_SCSI since most of the code relates
to the feature.
Signed-off-by: Simon Glass <sjg@chromium.org>
Real CD-ROMs are pretty obsolete these days. Usually people still keep
iso files around, but just put them on USB sticks or SD cards and expect
them to "just work".
To support this use case with El Torito images, add support for 512 byte
sector size to the iso parsing code.
Signed-off-by: Alexander Graf <agraf@suse.de>
The generic partition code treats partition 0 as "whole disk". So
we should start with partition 1 as the first partition in the iso
partition table.
Signed-off-by: Alexander Graf <agraf@suse.de>
The iso partition table implementation has a few endian and 64bit
problems. Clean it up a bit to become endian and bitness safe.
Signed-off-by: Alexander Graf <agraf@suse.de>
Fixes the following warning with PART_DEBUG enabled:
disk/part.c: In function ‘get_partition_info’:
disk/part.c:372:3: warning: format ‘%s’ expects a matching ‘char *’ argument [-Wformat]
Signed-off-by: Nishanth Menon <nm@ti.com>
Add a block device cache to speed up repeated reads of block devices by
various filesystems.
This small amount of cache can dramatically speed up filesystem
operations by skipping repeated reads of common areas of a block
device (typically directory structures).
This has shown to have some benefit on FAT filesystem operations of
loading a kernel and RAM disk, but more dramatic benefits on ext4
filesystems when the kernel and/or RAM disk are spread across
multiple extent header structures as described in commit fc0fc50.
The cache is implemented through a minimal list (block_cache) maintained
in most-recently-used order and count of the current number of entries
(cache_count). It uses a maximum block count setting to prevent copies
of large block reads and an upper bound on the number of cached areas.
The maximum number of entries in the cache defaults to 32 and the maximum
number of blocks per cache entry has a default of 2, which has shown to
produce the best results on testing of ext4 and FAT filesystems.
The 'blkcache' command (enabled through CONFIG_CMD_BLOCK_CACHE) allows
changing these values and can be used to tune for a particular filesystem
layout.
Signed-off-by: Eric Nelson <eric@nelint.com>
This cannot be NULL since part_get_info() calls this function and requires
it to be non-NULL.
Reported-by: Coverity (CID: 138497)
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Tom Rini <trini@konsulko.com>
This cannot be NULL since part_print() calls this function and requires it
to be non-NULL.
Reported-by: Coverity (CID: 138498)
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Tom Rini <trini@konsulko.com>
One of these is causing a coverity warning. Drop these functions and use the
standard U-Boot ones instead.
Reported-by: Coverity (CID: 138499)
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Tom Rini <trini@konsulko.com>
We have a pretty nice and generic interface to ask for a specific block
device. However, that one is still based around the magic notion that
we know the driver name.
In order to be able to write fully generic disk access code, expose the
currently internal list to other source files so that they can scan through
all available block drivers.
Signed-off-by: Alexander Graf <agraf@suse.de>
Reviewed-by: Simon Glass <sjg@chromium.org>
Tested-by: Simon Glass <sjg@chromium.org>
Rename these functions so that part_ is at the start. This more clearly
identifies these functions as partition functions.
Signed-off-by: Simon Glass <sjg@chromium.org>
To ease conversion to driver model, add helper functions which deal with
calling each block device method. With driver model we can reimplement these
functions with the same arguments.
Use inline functions to avoid increasing code size on some boards.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Tested-by: Stephen Warren <swarren@nvidia.com>
This is a device number, and we want to use 'dev' to mean a driver model
device. Rename the member.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Tested-by: Stephen Warren <swarren@nvidia.com>
Rename three partition functions so that they start with part_. This makes
it clear what they relate to.
Signed-off-by: Simon Glass <sjg@chromium.org>
Tested-by: Stephen Warren <swarren@nvidia.com>
