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AMD CPUID Faulting Support Looks To Be Coming For Linux 6.17
As a follow-up to the article a few weeks ago about AMD enabling User CPUID Faulting support for Linux, that code looks like it's ready to go for being introduced in the upcoming Linux 6.17 kernel.
The Linux kernel patch doesn't note which AMD CPU cores are capable of handling CPUID Faulting. With the patch making it into this common TIP branch of x86 CPU changes, it's likely to be submitted for the upcoming Linux 6.17 merge window, which should happen in late July or early August. The enablement is pretty basic in just checking for the presence of the User CPUID faulting feature bit on AMD CPUs and setting the relevant MSR then following the code previously laid out by Intel.About The AuthorMichael Larabel is the principal author of Phoronix.com and founded the site in 2004 with a focus on enriching the Linux hardware experience.
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