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

[Andrew Cooper <andrew.cooper3@xxxxxxxxxx>]

On 09/06/16 11:14, Euan Harris wrote:
> 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(-)
>

Committed, with the indicated fixup.

Thanks,

~Andrew

_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxx
http://lists.xen.org/xen-devel