25 Commits

Author SHA1 Message Date
e9e7b22323
kernel: Separate a thread's page directory into two
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The self directory, and the active directory. The active directory is the one the thread is currently using,
and the self directory is the one the thread owns.

This lets us keep track of both, which fixes ext2 executables crashing the system.
2023-06-25 20:35:40 +02:00
2be4880278
kernel: Name the scoped lock in ATADevice::read()
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Is that supposed to work without a name? Looks like it did!
2023-06-17 09:46:28 +02:00
c2cdb861c9
kernel/ATA: Fix buffer overflow in ATADevice::read() with small sizes and unaligned offsets 2023-06-17 00:48:53 +02:00
27b26f389c
kernel: Lock ATADevice::read_lba() using ATA::Channel's KMutex
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2023-06-17 00:22:38 +02:00
32d2e0e6b7
kernel: Remove register_special_device()'s name parameter
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This is now duplicate information that can be queried using device->device_path().
2023-06-16 21:46:51 +02:00
ba46399bbd
kernel/ATA: Remove debug messages
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2023-06-16 21:34:36 +02:00
738b218a49
kernel/ATA+MBR: Dynamically generate device names + create devices for MBR partitions
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2023-06-16 21:30:50 +02:00
72b8ebe02c
kernel: Make the MBR code read from a device instead of an inode
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2023-06-16 21:10:33 +02:00
72e798cedb
kernel: Do not automatically read the MBR partition table from /dev/cdrom
Since ff952cfe16 made /dev mounted from userspace, /dev/cdrom does not exist when ATA drives are scanned.
2023-06-16 21:10:33 +02:00
7593947c33
kernel/ATA: Route interrupts to the correct drive 2023-06-16 21:10:33 +02:00
93922932fa
kernel: Start reading the MBR partition table from the ATAPI drive 2023-06-16 21:10:33 +02:00
bb0db450b3
kernel/ATA: Pass extra information to DeviceRegistry
This is needed since merging e7d482e from main.
2023-06-16 21:10:33 +02:00
a0fa1f2cfd
kernel+init: Create a device node in /dev to access the CDROM from userspace!
Still using PIO, though.
2023-06-16 21:10:33 +02:00
2fa11a5ae3
kernel/ATA: Read the CDROM's first sector using ATAPI PIO!!
Sadly, for some reason, DMA is not working right now.
This is a problem, as PIO is inconvenient. But hey, it works for now!
2023-06-16 21:10:32 +02:00
82db0e39ea
kernel/ATA: Calculate block sizes for ATA devices as well 2023-06-16 21:10:32 +02:00
46c45068e0
kernel/ATA: Send a READ CAPACITY packet to an ATA drive on initialization 2023-06-16 21:10:32 +02:00
cfcde5af55
kernel/ATA: Read the PCI Busmaster registers and start preparing for DMA 2023-06-16 21:10:31 +02:00
268252c89e
kernel/ATA: Read the Busmaster base port and verify it 2023-06-16 21:10:31 +02:00
5d16754632
kernel: Handle device BARs properly 2023-06-16 21:10:31 +02:00
6307b01689
kernel/ATA: Read ATA strings properly instead of backwards
Now we can see the model string. What does it say...

"QEMU DVD-ROM". Let's go!
2023-06-16 21:10:31 +02:00
e118c9ea0d
kernel/ATA: Implement enough to send an IDENTIFY command and read the model number :) 2023-06-16 21:10:31 +02:00
ee691bbb0f
kernel/ATA: Handle drive IRQs in compatibility mode 2023-06-16 21:10:31 +02:00
3a84127fd6
kernel/ATA: Start reading/writing registers and detecting drives 2023-06-16 21:10:30 +02:00
e8507d23ee
kernel: Warn if no ATA controller is found 2023-06-16 21:10:30 +02:00
7efc6dc985
kernel/x86_64: Add basic ATA controller and channel identification 2023-06-16 21:10:30 +02:00