Researching PCI: Peripheral Component Interconnect | pkos 20

In this video, I share a TON of research about PCI. We also take our first step toward enumerating the PCI bus by writing a read_pci_port function.

Blog post: https://docs.pkos.pagekey.io/blog/20-...

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Timestamps:
0:00 Ooooh
0:18 Real Intro
0:32 Where we left off
0:41 What's Next / Roadmap
1:08 Research Overview
1:43 PCI on QEMU
2:31 OSDev: How to use PCI
3:31 BIG: Config Space Access
5:15 Wikipedia on PCI
5:29 The Linux kernel source!!!
6:56 Address Space Rabbit Hole
7:58 ACPI
8:23 Possibilities of PCI! (seemingly endless)
8:45 About info qtree
9:09 Running info qtree on PKOS
9:30 More random notes
9:54 Grant F's cryptos
10:36 Time for CODE?
11:54 The PCI Vision
12:40 THE CODE (lspci, so far)
13:51 Running it, so far
13:58 u32, u16, u8 (better typedefs)
14:35 inl, outl implementation
15:21 Checking the opcodes
16:31 A char has 8 bits
17:17 Whoa... some output!
17:23 Refactoring into a read_pci_port function
18:14 Recap