Messages in this thread | | | Subject | Re: [PATCH v2 0/2] x86/entry: speed up context-tracking system calls by 150 clock cycles | From | Paolo Bonzini <> | Date | Tue, 28 Jun 2016 14:16:00 +0200 |
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On 20/06/2016 16:58, Paolo Bonzini wrote: > The first patches are the two optimizations I posted on May 30th > for the system call entry/exit code. The only change is in the > function names, which use the user_{enter,exit}_irqoff favored > by Andy and Ingo. The first patch matches what commit d0e536d8939 > ("context_tracking: avoid irq_save/irq_restore on guest entry and exit", > 2015-10-28) did for guest entry and exit. The second simply adds > an inline annotation; the compiler doesn't figure it out because the > function is not static. > > The second two patches move guest_{enter,exit} to the same naming > convention, removing the KVM wrappers kvm_guest_{enter,exit} and > __kvm_guest_{enter,exit} in the process. I would like these two to > go through the KVM tree because I have other optimizations for 4.8 > on top of these patches.
I'm applying patches 3 and 4 to the KVM tree.
Paolo
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