[0/2] KVM: VMX: Use basic exit reason for cheking and indexing

Message

Xiaoyao Li Feb. 24, 2020, 2:07 a.m. UTC

Current KVM directly uses the whole 32-bit EXIT REASON when
1) checking: if (vmx->exit_reason == EXIT_REASON_*)
2) indexing: kvm_vmx_exit_handlers[exit_reason]

However, only the low 16-bit of EXIT REASON serves as basic Exit Reason.
Fix it by using the 16-bit basic exit reason.

BTW, I'm not sure if it's necessary to split nested case into a seperate
patch.

Xiaoyao Li (2):
  kvm: vmx: Use basic exit reason to check if it's the specific VM EXIT
  kvm: nvmx: Use basic(exit_reason) when checking specific EXIT_REASON

 arch/x86/kvm/vmx/nested.c |  6 +++---
 arch/x86/kvm/vmx/nested.h |  2 +-
 arch/x86/kvm/vmx/vmx.c    | 44 ++++++++++++++++++++-------------------
 arch/x86/kvm/vmx/vmx.h    |  2 ++
 4 files changed, 29 insertions(+), 25 deletions(-)