Add kernel config guide file

kernel-config.md

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+# Kernel configuration guide
+
+This file contains all of the changes I made from default
+gentoo-sources kenrel in menuconfig. I listed them here to make
+it simple to independently configure other machines.
+
+## Configuration listing
+
+- General Setup
+    - Kernel compression mode: LZ4
+    - uselib syscall: N
+    - Kernel log buffer size: 45
+    - CPU kernel log buffer size contribution: 45
+    - Temporary per-CPU printk log buffer size: 12
+    - Compiler optimization level: Optimize for performance -O2
+- Processor type and features
+    - Enable MPS table: N
+    - Support for extended (non-PC) x86 platforms: N
+    - Processor family: Core2/newer Xeon
+    - Maximum number of CPUs: 8 # CPU threads amount
+    - Multi-core scheduler support: N
+    - Reroute for broken boot IRQs
+    - Machine Check / overheating reporting
+        - AMD MCE features: N
+    - Performance monitoring
+        - AMD Processor Power Reporting Mechanism: N
+    - IOPERM and IPPL Emulation: N
+    - CPU mircocode loading support
+        - AMD microcode loading support: N
+    - Enable 5-level page tables support
+    - Check for low memory corruption: N
+    - MTRR (Memory Type Range Register) support
+        - MTRR cleanup enable value: 1
+        - MTRR cleanup spare reg num: 1
+- Power management and ACPI options
+    - CPU Frequency scaling
+        - Default CPUFreq governor: ondemand
+        - 'performance' governor: *
+        - 'powersave' governor: *
+        - 'userspace' governor for userspace fequency scaling: N
+        - 'ondemand' cpufreq policy governor: *
+        - 'conservative' cpufreq governor: N
+        - 'schedutil' cpufreq policy governor: *
+    - Cpuidle Driver for Intel Processors: *
+- Virtualization
+    - Kernel-based Virtual Machine (KVM) support: *
+        - KVM for Intel (and compatible) processors support: *
+- Enable loadable module support
+    - Module unloading
+        - Forced module unloading: N
+- Enable the block layer
+    - Block layer debugging information in debugfs: N
+- IO Schedulers
+    - MQ deadline I/O scheduler: N
+    - Kyber I/O scheduler: N
+    - BFQ I/O scheduler: *
+- Networking support
+    - Wireless
+        - cfg80211 - wireless connfiguration API: M
+            - enable powersave by default
+        - Generic IEEE 802.11 Networking Stack (mac80211): M
+    - Networking options
+        ## TODO: Check these options and configure them specifically
+        - TCP/IP networking
+            - The IPv6 protocol
+                - IPv6-in-IPv4 tunnel (SIT driver): N
+    - Bluetooth subsystem support: *
+- Device Drivers
+    - Generic Driver Options
+        - Firmware loader
+            # Let kernel compile the firmware here into the kernel, otherwise
+            # you would need to set those dirvers as modules, instead of building
+            # into the kernel. It doesn't really affect me to leave them as
+            # modules. This option also caused me problems so I don't set it.
+            - Build named firmware blobs into the kernel binary: /lib/firmware
+    - Block devices
+        - Loopback device support: *  # enable reading cd-roms
+        - Number of loop devices to pre-create at init time: 0
+    - SCSI device support
+        - SCSI disk support: *
+        - SCSI CDROM support: *
+        - Asynchronous SCSI scanning: *
+    - Serial ATA and Parallel ATA drivers
+        ## TODO: Consider disabling ATA SFF support, could cause problems though
+    - Multiple devices driver support: *
+        - Device mapper support: *
+            - Crypt target support: *
+            - Thin provisioning target: *
+    - Macintosh device drivers: N
+    - Network device support
+        - Ethernet driver support
+            - Atheros devices
+                - Atheros Qualcomm AR816x/AR817x support
+            ## Turn off everything else. NOTE: this depends on HW
+        - Wireless LAN
+            - Atheros/Qualcomm devices
+                - Atheros 802.11ac wireless cards support: M
+                    - Athernos ath10k PCI support: M
+            ## Turn off everything else. NOTE: this depends on HW
+        - USB Network Adapters: N
+    - Input device support
+        - Keyboards:
+            - AT keyboard: *
+        - Mice:
+            - PS/2 mouse: *
+            - Synaptics I2C Touchpad support: *
+        - Joysticks/Gamepads: N
+        - Tablets: N
+        - Touchscreens: N
+    - Hardware Monitoring support
+        - Intel Core/Core2/Atom temperature sensor: *
+    - Multifunction device drivers
+        - Intel Quark MFD I2C GPIO: *
+        - Intel ICH LPC: *
+        - Intel SCH LPC: *
+        - Intel Low Power Subsystem support in ACPI mode: *
+        - Intel Low Power Subsystem support in PCI mode: *
+        - Intel PMC Dirver for Broxton: *
+        - Intel Platform Monitoring Technology (PMI) support: *
+    - Graphics support
+        - Maximum number of GPUs: 2
+    - Sound card support
+        - Advanced Linux Sound Architecture
+            - PCI sound devices:
+                - [TODO Check if needed] Intel/SiS/nVidia/AMD/ALi AC97 Controller: *
+            - HD-Audio
+                - Build HDMI/DisplayPort HD-audio codec support: *
+                - Build Conexant HD-audio codec support: *
+            - USB sound devices:
+                - USB Audio/MIDI driver: *
+    - HID support
+        - Special HID drivers
+            ## Configure these based on HW
+    - x86 Platform Specific Device drivers
+        ## These are mostly for laptop specific things (vol up/down, etc.)
+- File systems
+    - The extended 4 filesystem: *
+    - Btrfs filesystem support: *
+        - Btrfs POSIX Access Control Lists: *
+    - FUSE (Filesystem in Userspace) support: * # for androind connection with MTP
+    - CD-ROM/DVD Filesystems:
+        - ISO 9660 CDROM file system support: M
+        - Microsoft Joliet CDROM extensions: *
+        - Transparent decompression extension: *
+        - UDF file system support: M
+    - DOS/FAT/EXFAT/NT Filesystems
+        - MSDOS fs support: *
+        - VFAT (Windows-95) fs support: *
+        - exFAT filesystem support: *
+        - NTFS file system support: *
+            - NTFS write support: *
+    - Miscellaneous filesystems: N
+    - Network File Systems: *
+- Security options
+    - NSA SELinux Support: N
+    - AppArmor Support: *