Re: [Xen-devel] [PATCH for-4.8 1/2] x86/vmx: Correct the long mode check in vmx_cpuid_intercept()

[Wei Liu <wei.liu2@xxxxxxxxxx>]

On Mon, Nov 14, 2016 at 11:01:25AM +0000, Andrew Cooper wrote:
> %cs.L may be set in a legacy mode segment, or clear in a compatibility mode
> segment; it is not the correct way to check for long mode being active.
> 
> Both of these situations result in incorrect visibility of the SYSCALL feature
> in CPUID, and by extension, incorrect behaviour in hvm_efer_valid().
> 
> Signed-off-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>

Both patches:

Release-acked-by: Wei Liu <wei.liu2@xxxxxxxxxx>


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