>>> On 28.08.18 at 19:58, wrote:
> On 17/08/18 13:45, Jan Beulich wrote:
> On 15.08.18 at 19:57, wrote:
>>> --- a/xen/arch/x86/alternative.c
>>> +++ b/xen/arch/x86/alternative.c
>>> @@ -84,6 +84,19 @@ static const unsigned char * const
>>> p6_nops[ASM_NOP_MAX+1]
>
>>>
On 17/08/18 13:45, Jan Beulich wrote:
On 15.08.18 at 19:57, wrote:
>> --- a/xen/arch/x86/Rules.mk
>> +++ b/xen/arch/x86/Rules.mk
>> @@ -29,6 +29,10 @@ $(call as-option-add,CFLAGS,CC,"invpcid
>> (%rax)$$(comma)%rax",-DHAVE_AS_INVPCID)
>> $(call as-option-add,CFLAGS,CC,\
>> ".if ((1 >
>>> On 15.08.18 at 19:57, wrote:
> --- a/xen/arch/x86/Rules.mk
> +++ b/xen/arch/x86/Rules.mk
> @@ -29,6 +29,10 @@ $(call as-option-add,CFLAGS,CC,"invpcid
> (%rax)$$(comma)%rax",-DHAVE_AS_INVPCID)
> $(call as-option-add,CFLAGS,CC,\
> ".if ((1 > 0) < 0); .error
On Thu, Aug 16, 2018 at 04:56:04PM +0100, Andrew Cooper wrote:
> On 16/08/18 15:31, Roger Pau Monné wrote:
> > On Thu, Aug 16, 2018 at 11:42:56AM +0100, Andrew Cooper wrote:
> >> On 16/08/18 10:55, Roger Pau Monné wrote:
> >>> On Wed, Aug 15, 2018 at 06:57:38PM +0100, Andrew Cooper wrote:
>
On 16/08/18 15:31, Roger Pau Monné wrote:
> On Thu, Aug 16, 2018 at 11:42:56AM +0100, Andrew Cooper wrote:
>> On 16/08/18 10:55, Roger Pau Monné wrote:
>>> On Wed, Aug 15, 2018 at 06:57:38PM +0100, Andrew Cooper wrote:
diff --git a/xen/arch/x86/Rules.mk b/xen/arch/x86/Rules.mk
index
On Thu, Aug 16, 2018 at 11:42:56AM +0100, Andrew Cooper wrote:
> On 16/08/18 10:55, Roger Pau Monné wrote:
> > On Wed, Aug 15, 2018 at 06:57:38PM +0100, Andrew Cooper wrote:
> >> diff --git a/xen/arch/x86/Rules.mk b/xen/arch/x86/Rules.mk
> >> index ac585a3..c84ed20 100644
> >> ---
>>> On 16.08.18 at 13:48, wrote:
> On 16/08/18 12:34, Jan Beulich wrote:
> On 16.08.18 at 12:42, wrote:
>>> On 16/08/18 10:55, Roger Pau Monné wrote:
On Wed, Aug 15, 2018 at 06:57:38PM +0100, Andrew Cooper wrote:
> @@ -112,6 +125,11 @@ static void __init arch_init_ideal_nops(void)
>>> On 16.08.18 at 13:57, wrote:
> On Thu, Aug 16, 2018 at 04:18:03AM -0600, Jan Beulich wrote:
>> >>> On 16.08.18 at 11:55, wrote:
>> > On Wed, Aug 15, 2018 at 06:57:38PM +0100, Andrew Cooper wrote:
>> >> --- a/xen/arch/x86/Rules.mk
>> >> +++ b/xen/arch/x86/Rules.mk
>> >> @@ -29,6 +29,10 @@
On Thu, Aug 16, 2018 at 04:18:03AM -0600, Jan Beulich wrote:
> >>> On 16.08.18 at 11:55, wrote:
> > On Wed, Aug 15, 2018 at 06:57:38PM +0100, Andrew Cooper wrote:
> >> --- a/xen/arch/x86/Rules.mk
> >> +++ b/xen/arch/x86/Rules.mk
> >> @@ -29,6 +29,10 @@ $(call as-option-add,CFLAGS,CC,"invpcid
>
On 16/08/18 12:34, Jan Beulich wrote:
On 16.08.18 at 12:42, wrote:
>> On 16/08/18 10:55, Roger Pau Monné wrote:
>>> On Wed, Aug 15, 2018 at 06:57:38PM +0100, Andrew Cooper wrote:
@@ -112,6 +125,11 @@ static void __init arch_init_ideal_nops(void)
ideal_nops = k8_nops;
>>> On 16.08.18 at 12:42, wrote:
> On 16/08/18 10:55, Roger Pau Monné wrote:
>> On Wed, Aug 15, 2018 at 06:57:38PM +0100, Andrew Cooper wrote:
>>> @@ -112,6 +125,11 @@ static void __init arch_init_ideal_nops(void)
>>> ideal_nops = k8_nops;
>>> break;
>>> }
>>> +
>>>
On 16/08/18 10:55, Roger Pau Monné wrote:
> On Wed, Aug 15, 2018 at 06:57:38PM +0100, Andrew Cooper wrote:
>> Newer versions of binutils are capable of emitting an exact number bytes
>> worth
>> of optimised nops, which are P6 nops. Use this in preference to .skip when
>> available.
>>
>> Check
>>> On 16.08.18 at 11:55, wrote:
> On Wed, Aug 15, 2018 at 06:57:38PM +0100, Andrew Cooper wrote:
>> --- a/xen/arch/x86/Rules.mk
>> +++ b/xen/arch/x86/Rules.mk
>> @@ -29,6 +29,10 @@ $(call as-option-add,CFLAGS,CC,"invpcid
>> (%rax)$$(comma)%rax",-DHAVE_AS_INVPCID)
>> $(call
On Wed, Aug 15, 2018 at 06:57:38PM +0100, Andrew Cooper wrote:
> Newer versions of binutils are capable of emitting an exact number bytes worth
> of optimised nops, which are P6 nops. Use this in preference to .skip when
> available.
>
> Check at boot time whether the toolchain nops are the
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