2021-07-14 12:38:58 +00:00
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# Kernel configuration guide
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This file contains all of the changes I made from default
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gentoo-sources kenrel in menuconfig. I listed them here to make
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it simple to independently configure other machines.
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## Configuration listing
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- General Setup
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- Kernel compression mode: LZ4
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- uselib syscall: N
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- Kernel log buffer size: 45
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- CPU kernel log buffer size contribution: 45
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- Temporary per-CPU printk log buffer size: 12
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- Compiler optimization level: Optimize for performance -O2
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- Processor type and features
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- Enable MPS table: N
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- Support for extended (non-PC) x86 platforms: N
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- Processor family: Core2/newer Xeon
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- Maximum number of CPUs: 8 # CPU threads amount
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- Multi-core scheduler support: N
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- Reroute for broken boot IRQs
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- Machine Check / overheating reporting
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- AMD MCE features: N
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- Performance monitoring
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- AMD Processor Power Reporting Mechanism: N
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- IOPERM and IPPL Emulation: N
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- CPU mircocode loading support
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- AMD microcode loading support: N
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- Enable 5-level page tables support
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- Check for low memory corruption: N
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- MTRR (Memory Type Range Register) support
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- MTRR cleanup enable value: 1
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- MTRR cleanup spare reg num: 1
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- Power management and ACPI options
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- CPU Frequency scaling
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- Default CPUFreq governor: ondemand
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- 'performance' governor: *
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- 'powersave' governor: *
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- 'userspace' governor for userspace fequency scaling: N
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- 'ondemand' cpufreq policy governor: *
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- 'conservative' cpufreq governor: N
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- 'schedutil' cpufreq policy governor: *
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- Cpuidle Driver for Intel Processors: *
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- Virtualization
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- Kernel-based Virtual Machine (KVM) support: *
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- KVM for Intel (and compatible) processors support: *
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- Enable loadable module support
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- Module unloading
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- Forced module unloading: N
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- Enable the block layer
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- Block layer debugging information in debugfs: N
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- IO Schedulers
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- MQ deadline I/O scheduler: N
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- Kyber I/O scheduler: N
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- BFQ I/O scheduler: *
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- Networking support
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- Wireless
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- cfg80211 - wireless connfiguration API: M
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- enable powersave by default
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- Generic IEEE 802.11 Networking Stack (mac80211): M
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- Networking options
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## TODO: Check these options and configure them specifically
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- TCP/IP networking
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- The IPv6 protocol
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- IPv6-in-IPv4 tunnel (SIT driver): N
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- Bluetooth subsystem support: *
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- Device Drivers
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- Generic Driver Options
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- Firmware loader
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# Let kernel compile the firmware here into the kernel, otherwise
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# you would need to set those dirvers as modules, instead of building
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# into the kernel. It doesn't really affect me to leave them as
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# modules. This option also caused me problems so I don't set it.
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- Build named firmware blobs into the kernel binary: /lib/firmware
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- Block devices
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- Loopback device support: * # enable reading cd-roms
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- Number of loop devices to pre-create at init time: 0
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- SCSI device support
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- SCSI disk support: *
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- SCSI CDROM support: *
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- Asynchronous SCSI scanning: *
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- Serial ATA and Parallel ATA drivers
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## TODO: Consider disabling ATA SFF support, could cause problems though
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- Multiple devices driver support: *
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- Device mapper support: *
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- Crypt target support: *
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- Thin provisioning target: *
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- Macintosh device drivers: N
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- Network device support
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- Ethernet driver support
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- Atheros devices
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- Atheros Qualcomm AR816x/AR817x support
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## Turn off everything else. NOTE: this depends on HW
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- Wireless LAN
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- Atheros/Qualcomm devices
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- Atheros 802.11ac wireless cards support: M
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- Athernos ath10k PCI support: M
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## Turn off everything else. NOTE: this depends on HW
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- USB Network Adapters: N
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- Input device support
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- Keyboards:
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- AT keyboard: *
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- Mice:
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- PS/2 mouse: *
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- Synaptics I2C Touchpad support: *
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- Joysticks/Gamepads: N
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- Tablets: N
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- Touchscreens: N
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- Hardware Monitoring support
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- Intel Core/Core2/Atom temperature sensor: *
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- Multifunction device drivers
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- Intel Quark MFD I2C GPIO: *
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- Intel ICH LPC: *
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- Intel SCH LPC: *
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- Intel Low Power Subsystem support in ACPI mode: *
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- Intel Low Power Subsystem support in PCI mode: *
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- Intel PMC Dirver for Broxton: *
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- Intel Platform Monitoring Technology (PMI) support: *
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- Graphics support
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- Maximum number of GPUs: 2
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- Sound card support
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- Advanced Linux Sound Architecture
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- PCI sound devices:
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- [TODO Check if needed] Intel/SiS/nVidia/AMD/ALi AC97 Controller: *
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- HD-Audio
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- Build HDMI/DisplayPort HD-audio codec support: *
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- Build Conexant HD-audio codec support: *
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- USB sound devices:
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- USB Audio/MIDI driver: *
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- HID support
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- Special HID drivers
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## Configure these based on HW
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2021-07-19 23:34:47 +00:00
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## For touchpads, add
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- HID Multitouch panels
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# This is also required for touchpads
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- I2C HID support
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- HID over I2C transport layer ACPI driver
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2021-07-14 12:38:58 +00:00
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- x86 Platform Specific Device drivers
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## These are mostly for laptop specific things (vol up/down, etc.)
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- File systems
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- The extended 4 filesystem: *
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- Btrfs filesystem support: *
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- Btrfs POSIX Access Control Lists: *
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- FUSE (Filesystem in Userspace) support: * # for androind connection with MTP
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- CD-ROM/DVD Filesystems:
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- ISO 9660 CDROM file system support: M
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- Microsoft Joliet CDROM extensions: *
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- Transparent decompression extension: *
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- UDF file system support: M
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- DOS/FAT/EXFAT/NT Filesystems
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- MSDOS fs support: *
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- VFAT (Windows-95) fs support: *
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- exFAT filesystem support: *
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- NTFS file system support: *
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- NTFS write support: *
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- Miscellaneous filesystems: N
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- Network File Systems: *
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- Security options
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- NSA SELinux Support: N
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- AppArmor Support: *
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