[PATCH 00/15] blk: sandbox: Support binding a device with a given logical block size

[Tom Rini]

On Tue, Sep 26, 2023 at 04:43:30PM +0800, Bin Meng wrote:

> At present on Sandbox when binding to a host backing file, the host
> block device is created with a hard-coded 512 bytes block size.
> 
> Such assumption works for most cases, but for situation that with a raw
> image file dump from a pre-formatted GPT partitioned disk image from a
> 4KiB block size device, when binding this file to a host device and mapping
> this device to a blkmap, "blkmap" command like "blkmap part" won't work
> correctly, due to block size mismatch during parsing the partition table.
> 
> This series updates Sandbox block driver, as well as the blkmap driver,
> to get rid of the hard-coded 512 bytes block size assumption.
> 
> This series is available at u-boot-x86/blk for testing.
> 
> Test log (512 block size):
> 
>   => host bind 0 test.img
>   => host info
>   dev       blocks  blksz label           path
>     0       262144    512 0               test.img
>   => blkmap create 0
>   Created "0"
>   => blkmap map 0 0 40000 linear host 0 0
>   Block 0x0+0x40000 mapped to block 0x0 of "host 0"
>   => blkmap info
>   Device 0: Vendor: U-Boot Rev: 1.0 Prod: blkmap
>               Type: Hard Disk
>               Capacity: 128.0 MB = 0.1 GB (262144 x 512)
>   => blkmap part
> 
>   Partition Map for BLKMAP device 0  --   Partition Type: EFI
> 
>   Part    Start LBA       End LBA         Name
>           Attributes
>           Type GUID
>           Partition GUID
>     1     0x00000022      0x000000bd      "u-boot-spl"
>           attrs:  0x0000000000000000
>           type:   5b193300-fc78-40cd-8002-e86c45580b47
>                   (5b193300-fc78-40cd-8002-e86c45580b47)
>           guid:   0bb6bb6e-4aac-4c27-be03-016b01e7b941
>     2     0x00000822      0x00000c84      "u-boot"
>           attrs:  0x0000000000000000
>           type:   2e54b353-1271-4842-806f-e436d6af6985
>                   (2e54b353-1271-4842-806f-e436d6af6985)
>           guid:   91d50814-8e31-4cc0-97dc-779e1dc59056
>     3     0x00000c85      0x0000cc84      "rootfs"
>           attrs:  0x0000000000000004
>           type:   0fc63daf-8483-4772-8e79-3d69d8477de4
>                   (linux)
>           guid:   42799722-6e55-46e6-afa9-529e7af3f03b
> 
> Test log (4096 block size):
> 
>   => host bind 0 test.img 4096
>   => host info
>   dev       blocks  blksz label           path
>     0        32768   4096 0               test.img
>   => blkmap create 0
>   Created "0"
>   => blkmap map 0 0 8000 linear host 0 0
>   Block 0x0+0x8000 mapped to block 0x0 of "host 0"
>   => blkmap info
>   Device 0: Vendor: U-Boot Rev: 1.0 Prod: blkmap
>               Type: Hard Disk
>               Capacity: 128.0 MB = 0.1 GB (32768 x 4096)
>   => blkmap part
> 
>   Partition Map for BLKMAP device 0  --   Partition Type: EFI
> 
>   Part    Start LBA       End LBA         Name
>           Attributes
>           Type GUID
>           Partition GUID
>     1     0x00000100      0x00001fff      "primary"
>           attrs:  0x0000000000000000
>           type:   0fc63daf-8483-4772-8e79-3d69d8477de4
>                   (linux)
>           guid:   eba904d7-72c1-4dbd-bb4e-36be49cba5e3
>     2     0x00002000      0x00007ffa      "primary"
>           attrs:  0x0000000000000000
>           type:   0fc63daf-8483-4772-8e79-3d69d8477de4
>                   (linux)
>           guid:   c48c360e-db47-46da-ab87-26416fad3cd3

With minor changes to apply again, applied to u-boot/master, thanks!

-- 
Tom
-------------- next part --------------
A non-text attachment was scrubbed...
Name: signature.asc
Type: application/pgp-signature
Size: 659 bytes
Desc: not available
URL: <https://lists.denx.de/pipermail/u-boot/attachments/20231010/abcd98c6/attachment.sig>