Re: [Xen-devel] [PATCH for-4.9] x86/vmx: Shorten vmx_{get, set}_segment_register() for user segments

["Jan Beulich" <JBeulich@xxxxxxxx>]

>>> On 26.10.16 at 15:15, <andrew.cooper3@xxxxxxxxxx> wrote:
> The x86_segment enumeration matches hardware SReg encoding, which can be used
> to calculate the appropriate VMCS fields, rather than open coding every
> instance.
> 
> This reduces the size of the switch statement, and the number of embedded 
> BUG
> frames from the __vm{read,write}() calls.  In the unlikely case that a call
> does fault, the field can unambiguously be retrieved from the GPR state
> printed.
> 
> Signed-off-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>

Nice.

Reviewed-by: Jan Beulich <jbeulich@xxxxxxxx>

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