Messages in this thread | | | Subject | Re: [PATCH 01/23] x86, kaiser: prepare assembly for entry/exit CR3 switching | From | Dave Hansen <> | Date | Tue, 31 Oct 2017 18:08:33 -0700 |
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On 10/31/2017 05:43 PM, Brian Gerst wrote: >> >> + RESTORE_CR3 save_reg=%r14 >> + >> testl %ebx, %ebx /* swapgs needed? */ >> jnz nmi_restore >> nmi_swapgs: >> _ > This all needs to be conditional on a config option. Something with > this amount of performance impact needs to be 100% optional.
The 07/23 patch does just this. I should have at least called that out in the description.
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