[PATCH v2 0/4] Emulate VMXON region correctly

[Bandan Das <bsd@redhat.com>]

Reference: https://bugzilla.kernel.org/show_bug.cgi?id=54521

The vmxon region is unused by nvmx, but adding these checks
are probably harmless and may detect buggy L1 hypervisors in 
the future!

v2:
1/4
  - Commit message change to reflect addition of new function
2/4
  - Use cpuid_maxphyaddr()
  - Fix a leak with kunmap()
  - Remove unnecessary braces around comparisions
  - Move all checks into a common function, this will be later
    used by handle_vmptrld and handle_vmclear in 4/4
4/4
  - New patch - use common function to perform checks on
    vmptr

Bandan Das (4):
  KVM: nVMX: rearrange get_vmx_mem_address
  KVM: nVMX: additional checks on vmxon region
  KVM: nVMX: fail on invalid vmclear/vmptrld pointer
  KVM: nVMX: move vmclear and vmptrld pre-checks to
    nested_vmx_check_vmptr

 arch/x86/kvm/cpuid.c |   1 +
 arch/x86/kvm/vmx.c   | 240 +++++++++++++++++++++++++++++++++------------------
 2 files changed, 156 insertions(+), 85 deletions(-)

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1.8.3.1