Re: [PATCH v3 2/5] x86/enter: Create macros to set/clear IBRS

[Tim Chen]

On 01/11/2018 01:05 PM, Tim Chen wrote:
> On 01/11/2018 08:04 AM, Thomas Gleixner wrote:
>> On Tue, 9 Jan 2018, Tim Chen wrote:
>>> +
>>> +.macro WRMSR_ASM msr_nr:req edx_val:req eax_val:req
>>> +	movl	\msr_nr, %ecx
>>> +	movl	\edx_val, %edx
>>> +	movl	\eax_val, %eax
>>> +.endm
>>
>> This is the most brilliant piece of useless code I've seen in a long time.
>>
>>
>> 	 tglx
>>
> 
> Sorry that was a major brain fart on my part. 
> 

Our internal tester mixed in retpoline with IBRS so we've missed
this.  Will correct our test.

Tim