>>> On 29.06.16 at 13:37, wrote:
> On 29/06/16 11:03, Jan Beulich wrote:
> On 29.06.16 at 11:50, wrote:
>>> On 29/06/16 03:20, Luwei Kang wrote:
--- a/xen/tools/gen-cpuid.py
+++ b/xen/tools/gen-cpuid.py
@@ -235,6 +235,10 @@ def crunch_numbers(state):
# subsequent
On 29/06/16 11:03, Jan Beulich wrote:
On 29.06.16 at 11:50, wrote:
>> On 29/06/16 03:20, Luwei Kang wrote:
>>> --- a/xen/tools/gen-cpuid.py
>>> +++ b/xen/tools/gen-cpuid.py
>>> @@ -235,6 +235,10 @@ def crunch_numbers(state):
>>> # subsequent instruction groups may only be VEX encoded
>>> On 29.06.16 at 11:50, wrote:
> On 29/06/16 03:20, Luwei Kang wrote:
>> --- a/xen/tools/gen-cpuid.py
>> +++ b/xen/tools/gen-cpuid.py
>> @@ -235,6 +235,10 @@ def crunch_numbers(state):
>> # subsequent instruction groups may only be VEX encoded.
>> AVX: [FMA, FMA4, F16C, AVX2, X
On 29/06/16 10:50, Andrew Cooper wrote:
> On 29/06/16 03:20, Luwei Kang wrote:
>> diff --git a/xen/tools/gen-cpuid.py b/xen/tools/gen-cpuid.py
>> index 7c45eca..897e660 100755
>> --- a/xen/tools/gen-cpuid.py
>> +++ b/xen/tools/gen-cpuid.py
>> @@ -235,6 +235,10 @@ def crunch_numbers(state):
>>
On 29/06/16 03:20, Luwei Kang wrote:
> AVX-512 is an extention of AVX2. Its spec can be found at:
> https://software.intel.com/sites/default/files/managed/b4/3a/319433-024.pdf
> This patch detects AVX-512 features by CPUID.
>
> Signed-off-by: Luwei Kang
> ---
> xen/arch/x86/hvm/hvm.c
>>> On 29.06.16 at 03:57, wrote:
> AVX-512 is an extention of AVX2. Its spec can be found at:
> https://software.intel.com/sites/default/files/managed/b4/3a/319433-024.pdf
> This patch detects AVX-512 features by CPUID.
>
> Signed-off-by: Luwei Kang
> ---
Please version your patches (I see the
AVX-512 is an extention of AVX2. Its spec can be found at:
https://software.intel.com/sites/default/files/managed/b4/3a/319433-024.pdf
This patch detects AVX-512 features by CPUID.
Signed-off-by: Luwei Kang
---
xen/arch/x86/hvm/hvm.c | 14 ++
xen/arch/x86/traps.c
AVX-512 is an extention of AVX2. Its spec can be found at:
https://software.intel.com/sites/default/files/managed/b4/3a/319433-024.pdf
This patch detects AVX-512 features by CPUID.
Signed-off-by: Luwei Kang
---
xen/arch/x86/hvm/hvm.c | 14 ++
xen/arch/x86/traps.c
OK, no problem.
-Original Message-
From: Andrew Cooper [mailto:andrew.coop...@citrix.com]
Sent: Tuesday, June 28, 2016 4:47 PM
To: Kang, Luwei ; xen-devel@lists.xen.org
Cc: jbeul...@suse.com; Wang, Yong Y ; Peng, Chao P
Subject: Re: [PATCH] x86/cpuid: AVX-512 Feature Detection
On 28/0
On 28/06/16 06:51, Luwei Kang wrote:
> @@ -1136,9 +1136,16 @@ void pv_cpuid(struct cpu_user_regs *regs)
> case XSTATE_CPUID:
>
> if ( !is_control_domain(currd) && !is_hardware_domain(currd) )
> +{
> domain_cpuid(currd, 1, 0, &tmp, &tmp, &_ecx, &tmp);
> +
Thanks for your advice, I will make a change right now.
-Original Message-
From: Jan Beulich [mailto:jbeul...@suse.com]
Sent: Tuesday, June 28, 2016 3:49 PM
To: Kang, Luwei
Cc: andrew.coop...@citrix.com; Peng, Chao P ; Wang, Yong
Y ; xen-devel@lists.xen.org
Subject: Re: [PATCH] x86/cp
>>> On 28.06.16 at 07:51, wrote:
> --- a/xen/arch/x86/hvm/hvm.c
> +++ b/xen/arch/x86/hvm/hvm.c
> @@ -3474,6 +3474,14 @@ void hvm_cpuid(unsigned int input, unsigned int *eax,
> unsigned int *ebx,
>xstate_sizes[_XSTATE_BNDCSR]);
> }
>
> +
AVX-512 is an extention of AVX2. Its spec can be found at:
https://software.intel.com/sites/default/files/managed/b4/3a/319433-024.pdf
This patch detects AVX-512 features by CPUID.
Signed-off-by: Luwei Kang
---
xen/arch/x86/hvm/hvm.c | 8
xen/arch/x86/traps.c
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