Messages in this thread |  | | From | Linus Torvalds <> | Date | Sun, 17 Jul 2022 08:20:46 -0700 | Subject | Re: [patch 02/38] x86/cpu: Use native_wrmsrl() in load_percpu_segment() |
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On Sat, Jul 16, 2022 at 5:22 PM Andrew Cooper <Andrew.Cooper3@citrix.com> wrote: > > It's only 32bit where the percpu pointer is tied to the GDT. On 64bit, > gsbase is good before this, and remains good after.
That sounds sensible to me, but somebody should check that there's nothing that accidentally relied on the MSR_GS_BASE setting (or the segment selector clearing, for that matter).
Not that I can necessarily see how anything could work with it wrong, but..
Linus
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