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Diffstat (limited to 'www/faq.md')
| -rw-r--r-- | www/faq.md | 46 |
1 files changed, 42 insertions, 4 deletions
@@ -9,7 +9,7 @@ Important issues What version of libreboot do I have? ---------------------------------------------------------------- -[See here](../docs/#version) +See "Version" [in the documentation](../docs/#version) Flashrom complains about DEVMEM access -------------------------------------- @@ -17,7 +17,20 @@ Flashrom complains about DEVMEM access If running `flashrom -p internal` for software based flashing, and you get an error related to /dev/mem access, you should reboot with `iomem=relaxed` kernel parameter before running flashrom, or use a kernel -that has `CONFIG\_STRICT\_DEVMEM` not enabled. +that has `CONFIG_STRICT_DEVMEM` and `CONFIG_IO_STRICT_DEVMEM` not enabled. + +Example flashrom output with both `CONFIG_STRICT_DEVMEM` and `CONFIG_IO_STRICT_DEVMEM` enabled: +``` +flashrom v0.9.9-r1955 on Linux 4.11.9-1-ARCH (x86_64) +flashrom is free software, get the source code at https://flashrom.org + +Calibrating delay loop... OK. +Error accessing high tables, 0x100000 bytes at 0x000000007fb5d000 +/dev/mem mmap failed: Operation not permitted +Failed getting access to coreboot high tables. +Error accessing DMI Table, 0x1000 bytes at 0x000000007fb27000 +/dev/mem mmap failed: Operation not permitted +``` The backlight is darker on the left side of the screen when lowering the brightness on my X200/T400/T500/R400 --------------------------------------------------------------------------------------------------------------- @@ -76,7 +89,31 @@ Hardware compatibility What systems are compatible with libreboot? ----------------------------------------------------------------------------------- -[See here](docs/hardware/). +See the [hardware compatibility list](docs/hardware/). + +Will the Purism laptops be supported? +---------------------------------------------------------------------- + +Short answer: no. + +There are severe privacy, security and freedom issues with these laptops, due +to the Intel chipsets that they use. See: + +- [Intel Management Engine](#intelme) +- [More freedom issues on modern Intel hardware](#intel) + +Most notably, these laptops also use the Intel FSP binary blob, for the entire +hardware initialization. Coreboot does support a particular revision of one of +their laptops, but most are either unsupported or rely on binary blobs for most +of the hardware initialization. + +In particular, the Intel Management Engine is a severe threat to privacy and +security, not to mention freedom, since it is a remote backdoor that provides +Intel remote access to a computer where it is present. + +Intel themselves even admitted it, publicly. + +The Libreboot project recommends avoiding all hardware sold by Purism. Why is the latest Intel hardware unsupported in libreboot? {#intel} ----------------------------------------------------------- @@ -444,7 +481,8 @@ What *can* I use, then? {#whatcaniuse} ------------------------- Libreboot has support for fam15h AMD hardware (~2012 gen) and some -older Intel platforms (~2006-2009 gen). We also have support for some +older Intel platforms like Napa, Montevina, Eagle Lake, Lakeport (2004-2006). +We also have support for some ARM chipsets (rk3288). On the Intel side, we're also interested in some of the chipsets that use Atom CPUs (rebranded from older chipsets, mostly using ich7-based southbridges). |