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further update 

Signed-off-by: Leah Rowe <leah@libreboot.org>
master
Leah Rowe 2024-01-04 09:27:57 +00:00
parent 16ae385b84
commit 365f8eb2c9
1 changed files with 7 additions and 1 deletions
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8
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@ -26,6 +26,11 @@ get an error related to `/dev/mem` access, you should reboot with
`iomem=relaxed` kernel parameter before running flashrom, or use a kernel that `iomem=relaxed` kernel parameter before running flashrom, or use a kernel that
has `CONFIG_STRICT_DEVMEM` not enabled. has `CONFIG_STRICT_DEVMEM` not enabled.
On NetBSD and OpenBSD systems, the equivalent to `iomem=relaxed` in this case
is `kernel.securelevel=-1`; see [NetBSD securelevel
manual](https://wiki.netbsd.org/tutorials/kernel_secure_levels/)
and [OpenBSD securelevel manual](https://man.openbsd.org/securelevel).
ERROR: Could not get I/O privileges ERROR: Could not get I/O privileges
------------------------------------ ------------------------------------
@ -39,7 +44,8 @@ See: <https://lwn.net/Articles/804143/>
Yeah, just enable `CONFIG_X86_IOPL_IOPERM` in your Linux kernel. This is Yeah, just enable `CONFIG_X86_IOPL_IOPERM` in your Linux kernel. This is
a *build-time* option, so you must re-compile your kernel, or find a build that a *build-time* option, so you must re-compile your kernel, or find a build that
has this option enabled (IOPL emulation). has this option enabled (IOPL emulation). Many default kernel configurations
now disable this option.
Here's a handy-dandy guide for building a kernel from source: Here's a handy-dandy guide for building a kernel from source:
<https://www.cyberciti.biz/tips/compiling-linux-kernel-26.html> <https://www.cyberciti.biz/tips/compiling-linux-kernel-26.html>