[v6,00/18] TDX MMU prep series part 1

Message

Paolo Bonzini Dec. 22, 2024, 7:34 p.m. UTC

Hi,

this is the essentially final version of the TDX MMU prep series, focusing
on supporting TDX's separation of EPT into a direct part (for shared pages)
and a part that is managed by the TDX module and cached (into a "mirror"
EPT) by KVM.

The only difference from v5 is squashing in Yan's
https://lore.kernel.org/kvm/[e-mail]/,
and a few comment and commit message updates.

Paolo

Isaku Yamahata (12):
  KVM: Add member to struct kvm_gfn_range to indicate private/shared
  KVM: x86/mmu: Add an external pointer to struct kvm_mmu_page
  KVM: x86/mmu: Add an is_mirror member for union kvm_mmu_page_role
  KVM: x86/tdp_mmu: Take struct kvm in iter loops
  KVM: x86/mmu: Support GFN direct bits
  KVM: x86/tdp_mmu: Extract root invalid check from tdx_mmu_next_root()
  KVM: x86/tdp_mmu: Introduce KVM MMU root types to specify page table
    type
  KVM: x86/tdp_mmu: Take root in tdp_mmu_for_each_pte()
  KVM: x86/tdp_mmu: Support mirror root for TDP MMU
  KVM: x86/tdp_mmu: Propagate building mirror page tables
  KVM: x86/tdp_mmu: Propagate tearing down mirror page tables
  KVM: x86/tdp_mmu: Take root types for
    kvm_tdp_mmu_invalidate_all_roots()

Paolo Bonzini (1):
  KVM: x86/tdp_mmu: Propagate attr_filter to MMU notifier callbacks

Rick Edgecombe (5):
  KVM: x86/mmu: Zap invalid roots with mmu_lock held for write at
    uninit
  KVM: x86: Add a VM type define for TDX
  KVM: x86/mmu: Make kvm_tdp_mmu_alloc_root() return void
  KVM: x86/tdp_mmu: Don't zap valid mirror roots in
    kvm_tdp_mmu_zap_all()
  KVM: x86/mmu: Prevent aliased memslot GFNs

 arch/x86/include/asm/kvm-x86-ops.h |   4 +
 arch/x86/include/asm/kvm_host.h    |  26 ++-
 arch/x86/include/uapi/asm/kvm.h    |   1 +
 arch/x86/kvm/mmu.h                 |  31 +++
 arch/x86/kvm/mmu/mmu.c             |  50 ++++-
 arch/x86/kvm/mmu/mmu_internal.h    |  64 +++++-
 arch/x86/kvm/mmu/spte.h            |   5 +
 arch/x86/kvm/mmu/tdp_iter.c        |  10 +-
 arch/x86/kvm/mmu/tdp_iter.h        |  21 +-
 arch/x86/kvm/mmu/tdp_mmu.c         | 325 ++++++++++++++++++++++-------
 arch/x86/kvm/mmu/tdp_mmu.h         |  51 ++++-
 arch/x86/kvm/x86.c                 |   3 +
 include/linux/kvm_host.h           |   6 +
 virt/kvm/guest_memfd.c             |   2 +
 virt/kvm/kvm_main.c                |  14 ++
 15 files changed, 506 insertions(+), 107 deletions(-)