Messages in this thread | | | Subject | Re: [PATCH 3/3] x86: context_tracking: avoid irq_save/irq_restore on kernel entry and exit | From | Paolo Bonzini <> | Date | Wed, 28 Oct 2015 15:51:34 +0100 |
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On 28/10/2015 06:22, Andy Lutomirski wrote: >> > called by guest_enter and guest_exit. >> > >> > Use the previously introduced __context_tracking_entry and >> > __context_tracking_exit. > x86 isn't ready for this yet. We could do a quick-and-dirty fix with > explicit IRQs-on-and-off much protected by the static key, or we could > just wait until I finish the syscall cleanup. I favor the latter, but > you're all welcome to do the former and I'll review it.
Or we could just do save/restore for the only call that doesn't ensure that interrupts are disabled (syscall_trace_phase1 or whatever it's called).
But two days from the merge window, I also favor waiting until 4.5.
Paolo
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