linux

iv/linux

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Paolo Bonzini 807b758496 KVM x86 MMU changes for 6.4:

- Tweak FNAME(sync_spte) to avoid unnecessary writes+flushes when the
    guest is only adding new PTEs
 
  - Overhaul .sync_page() and .invlpg() to share the .sync_page()
    implementation, i.e. utilize .sync_page()'s optimizations when emulating
    invalidations
 
  - Clean up the range-based flushing APIs
 
  - Revamp the TDP MMU's reaping of Accessed/Dirty bits to clear a single
    A/D bit using a LOCK AND instead of XCHG, and skip all of the "handle
    changed SPTE" overhead associated with writing the entire entry
 
  - Track the number of "tail" entries in a pte_list_desc to avoid having
    to walk (potentially) all descriptors during insertion and deletion,
    which gets quite expensive if the guest is spamming fork()
 
  - Misc cleanups
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Merge tag 'kvm-x86-mmu-6.4' of https://github.com/kvm-x86/linux into HEAD

KVM x86 MMU changes for 6.4:

 - Tweak FNAME(sync_spte) to avoid unnecessary writes+flushes when the
   guest is only adding new PTEs

 - Overhaul .sync_page() and .invlpg() to share the .sync_page()
   implementation, i.e. utilize .sync_page()'s optimizations when emulating
   invalidations

 - Clean up the range-based flushing APIs

 - Revamp the TDP MMU's reaping of Accessed/Dirty bits to clear a single
   A/D bit using a LOCK AND instead of XCHG, and skip all of the "handle
   changed SPTE" overhead associated with writing the entire entry

 - Track the number of "tail" entries in a pte_list_desc to avoid having
   to walk (potentially) all descriptors during insertion and deletion,
   which gets quite expensive if the guest is spamming fork()

 - Misc cleanups

2023-04-26 15:50:01 -04:00

mmu_internal.h

KVM: x86/mmu: Use gfn_t in kvm_flush_remote_tlbs_range()

2023-03-17 15:36:20 -07:00

mmu.c

KVM x86 MMU changes for 6.4:

2023-04-26 15:50:01 -04:00

mmutrace.h

KVM: x86/mmu: Add RET_PF_CONTINUE to eliminate bool+int* "returns"

2022-05-12 09:51:42 -04:00

page_track.c

KVM: x86: Unify pr_fmt to use module name for all KVM modules