[PATCH 0/4] KVM: x86: Collect host state snapshots into a struct

From: Sean Christopherson
Date: Tue Apr 23 2024 - 18:15:36 EST


Add a global "kvm_host" structure to hold various host values, e.g. for
EFER, XCR0, raw MAXPHYADDR etc., instead of having a bunch of one-off
variables that inevitably need to be exported, or in the case of
shadow_phys_bits, are buried in a random location and are awkward to use,
leading to duplicate code.

Sean Christopherson (4):
KVM: x86: Add a struct to consolidate host values, e.g. EFER, XCR0,
etc...
KVM: SVM: Use KVM's snapshot of the host's XCR0 for SEV-ES host state
KVM: x86/mmu: Snapshot shadow_phys_bits when kvm.ko is loaded
KVM: x86: Move shadow_phys_bits into "kvm_host", as "maxphyaddr"

arch/x86/include/asm/kvm_host.h | 1 -
arch/x86/kvm/mmu.h | 27 +----------------------
arch/x86/kvm/mmu/mmu.c | 2 +-
arch/x86/kvm/mmu/spte.c | 26 ++++++++++++++++++----
arch/x86/kvm/svm/sev.c | 4 ++--
arch/x86/kvm/vmx/nested.c | 8 +++----
arch/x86/kvm/vmx/vmx.c | 28 +++++++++++-------------
arch/x86/kvm/vmx/vmx.h | 2 +-
arch/x86/kvm/x86.c | 38 +++++++++++++--------------------
arch/x86/kvm/x86.h | 19 +++++++++++++----
10 files changed, 74 insertions(+), 81 deletions(-)


base-commit: 7b076c6a308ec5bce9fc96e2935443ed228b9148
--
2.44.0.769.g3c40516874-goog