[PATCHv4 00/11] SVM: virtual NMI

[Santosh Shukla]

v2:
https://lore.kernel.org/all/0f56e139-4c7f-5220-a4a2-99f87f45fd83@xxxxxxx/

v3:
https://lore.kernel.org/all/20230227035400.1498-1-santosh.shukla@xxxxxxx/
 - 09/11: Clubbed x86_ops delayed NMI with vNMI changes into one,
   for better readability purpose (Sean Suggestion)
 - Series includes suggestion and fixes proposed in v2 series.
   Refer each patch for change history(v2-->v3).

v4:
 - Missed sending 01/11 patch in v3.

Series based on [1] and tested on AMD EPYC-Genoa.


APM: ((Ch-15.21.10 - NMI Virtualization)
https://www.amd.com/en/support/tech-docs/amd64-architecture-programmers-manual-volumes-1-5

Past history and work refer v5-
https://lkml.org/lkml/2022/10/27/261

Thanks,
Santosh
[1] https://github.com/kvm-x86/linux branch kvm-x86/next(62ef199250cd46f)



Maxim Levitsky (2):
  KVM: nSVM: Raise event on nested VM exit if L1 doesn't intercept IRQs
  KVM: SVM: add wrappers to enable/disable IRET interception

Santosh Shukla (6):
  KVM: nSVM: Don't sync vmcb02 V_IRQ back to vmcb12 if KVM (L0) is
    intercepting VINTR
  KVM: nSVM: Disable intercept of VINTR if saved RFLAG.IF is 0
  x86/cpu: Add CPUID feature bit for VNMI
  KVM: SVM: Add VNMI bit definition
  KVM: x86: add support for delayed virtual NMI injection interface
  KVM: nSVM: implement support for nested VNMI

Sean Christopherson (3):
  KVM: x86: Raise an event request when processing NMIs if an NMI is
    pending
  KVM: x86: Tweak the code and comment related to handling concurrent
    NMIs
  KVM: x86: Save/restore all NMIs when multiple NMIs are pending

 arch/x86/include/asm/cpufeatures.h |   1 +
 arch/x86/include/asm/kvm-x86-ops.h |   2 +
 arch/x86/include/asm/kvm_host.h    |  11 ++-
 arch/x86/include/asm/svm.h         |   9 ++
 arch/x86/kvm/svm/nested.c          |  94 +++++++++++++++---
 arch/x86/kvm/svm/svm.c             | 152 +++++++++++++++++++++++------
 arch/x86/kvm/svm/svm.h             |  28 ++++++
 arch/x86/kvm/x86.c                 |  46 +++++++--
 8 files changed, 289 insertions(+), 54 deletions(-)

-- 
2.25.1