[RFC PATCH v12 10/33] KVM: Set the stage for handling only shared mappings in mmu_notifier events

Sean Christopherson seanjc at google.com
Tue Sep 19 01:57:45 AEST 2023

On Mon, Sep 18, 2023, Binbin Wu wrote:
> On 9/14/2023 9:55 AM, Sean Christopherson wrote:
> > Add flags to "struct kvm_gfn_range" to let notifier events target only
> > shared and only private mappings, and write up the existing mmu_notifier
> > events to be shared-only (private memory is never associated with a
> > userspace virtual address, i.e. can't be reached via mmu_notifiers).
> > 
> > Add two flags so that KVM can handle the three possibilities (shared,
> > private, and shared+private) without needing something like a tri-state
> > enum.
> How to understand the word "stage" in short log?

Sorry, it's an idiom[*] that essentially means "to prepare for".  I'll rephrase
the shortlog to be more straightforward (I have a bad habit of using idioms).

[*] https://dictionary.cambridge.org/us/dictionary/english/set-the-stage-for

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