[v6,0/3] CET fix patches for nested guest

Message

Yang, Weijiang April 21, 2021, 9:05 a.m. UTC

This patch series is to fix a few issues found during patch review and
testing on Linux, also including a patch to explictly disable CET support
in nested guest over Hyper-V(s).

change in v6:
- Add check for nested vm_entry_controls without VM_ENTRY_LOAD_CET_STATE set
  to snapshot L1's CET states for L2.


Yang Weijiang (3):
  KVM: nVMX: Sync L2 guest CET states between L1/L2
  KVM: nVMX: Set X86_CR4_CET in cr4_fixed1_bits if CET IBT is enabled
  KVM: nVMX: Add CET entry/exit load bits to evmcs unsupported list

 arch/x86/kvm/cpuid.c      |  1 -
 arch/x86/kvm/vmx/evmcs.c  |  4 ++--
 arch/x86/kvm/vmx/evmcs.h  |  6 ++++--
 arch/x86/kvm/vmx/nested.c | 31 +++++++++++++++++++++++++++++++
 arch/x86/kvm/vmx/vmx.c    |  1 +
 arch/x86/kvm/vmx/vmx.h    |  3 +++
 6 files changed, 41 insertions(+), 5 deletions(-)