Messages in this thread | | | Date | Tue, 6 Sep 2022 22:56:47 +0200 | Subject | Re: [PATCH] x86/cpu: Avoid writing MSR_IA32_TSX_CTRL when writing it is not supported | From | Hans de Goede <> |
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Hi,
On 9/6/22 22:43, Peter Zijlstra wrote: > On Tue, Sep 06, 2022 at 10:17:43PM +0200, Hans de Goede wrote: >> On an Intel Atom N2600 (and presumable other Cedar Trail models) >> MSR_IA32_TSX_CTRL can be read, causing saved_msr.valid to be set for it >> by msr_build_context(). >> >> This causes restore_processor_state() to try and restore it, but writing >> this MSR is not allowed on the Intel Atom N2600 leading to: > > FWIW, virt tends to do this same thing a lot. They'll allow reading > random MSRs and only fail on write.
Right. So I guess I should send a v2 with an updated commit message mentioning this ?
Regards,
Hans
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