>>> On 26.09.18 at 20:13, wrote:
> On 26/09/18 07:43, Jan Beulich wrote:
>> Eliminating conditional branches is always a Good Thing (tm), it seems to
> me.
>
> By this reasoning, we should compile Xen with movfuscator, which really
> will get rid of every branch.
>
> Doing so would be utter non
On 26/09/18 07:43, Jan Beulich wrote:
On 25.09.18 at 18:52, wrote:
>> On 29/08/18 17:03, Jan Beulich wrote:
>>> Eliminates a couple of branches in particular from the context switch
>>> path.
>>>
>>> Signed-off-by: Jan Beulich
>> I've already expressed a dis-inclination to this patch, becaus
>>> On 25.09.18 at 18:52, wrote:
> On 29/08/18 17:03, Jan Beulich wrote:
>> Eliminates a couple of branches in particular from the context switch
>> path.
>>
>> Signed-off-by: Jan Beulich
>
> I've already expressed a dis-inclination to this patch, because it looks
> like a micro-optimisation whi
On 29/08/18 17:03, Jan Beulich wrote:
> Eliminates a couple of branches in particular from the context switch
> path.
>
> Signed-off-by: Jan Beulich
I've already expressed a dis-inclination to this patch, because it looks
like a micro-optimisation which won't actually affect measureable
performan
On Wed, Aug 29, 2018 at 10:03:01AM -0600, Jan Beulich wrote:
> Eliminates a couple of branches in particular from the context switch
> path.
>
> Signed-off-by: Jan Beulich
Reviewed-by: Wei Liu
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Eliminates a couple of branches in particular from the context switch
path.
Signed-off-by: Jan Beulich
--- a/xen/include/asm-x86/msr.h
+++ b/xen/include/asm-x86/msr.h
@@ -11,6 +11,7 @@
#include
+#include
#include
#include
#include
@@ -154,10 +155,15 @@ static inline unsigned long rd
