[Xen-devel] [PATCH 0/2] Validate host VMX MSRs before accessing them

[Euan Harris <euan.harris@xxxxxxxxxx>]

nvmx_msr_read_intercept() does not check the prerequisites before
accessing MSR_IA32_VMX_PROCBASED_CTLS2, MSR_IA32_VMX_EPT_VPID_CAP,
MSR_IA32_VMX_VMFUNC on the host.   Accessing these MSRs from a nested
VMX guest running on a host which does not support them will cause
Xen to crash with a GPF.

Euan Harris (2):
  nested vmx: Fix comment typos in nvmx_msr_read_intercept()
  nested vmx: Validate host VMX MSRs before accessing them

 xen/arch/x86/hvm/vmx/vvmx.c |   32 +++++++++++++++++++++++---------
 1 file changed, 23 insertions(+), 9 deletions(-)

-- 
1.7.10.4


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