Incorrect Disk Read from Slave Drive in QEMU Setup

[IlanVinograd]

Bug Report: Incorrect Disk Read from Slave Drive in QEMU Setup

Summary

Check feature/target branch for code.

The kernel incorrectly attempts to read data from the Primary Slave (ide0-hd1) in a QEMU environment. This results in mismatched or invalid data being read from the disk.

Details

Expected Behavior

The kernel should correctly identify and read data from the Primary Slave disk (fat32_disk.img), which is attached to QEMU as ide0-hd1.

The expected data (e.g., from a hex editor like HxD) at LBA 0 of fat32_disk.img might look like this:
EB 58 90 6D 6B 66 73 2E 66 61 74 00 02 01 20 00

fat32_disk.img was formated by mkfs.fat -F 32 fat32_disk.img for FAT32.

Actual Behavior

Primary Slave, resulting in incorrect data such as:
0x40 0x00 0x82 0x00 0x00 0x00 0x00 0x10 0x00 0x00 0x00 0x00 0x3F 0x00 0x00 0x00

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Steps to Reproduce

Use read commnad

Inspect Disk Configurations

info block

Target

be able use ATA driver for file system using separate .img.