lkml.org 
[lkml]   [2021]   [Apr]   [22]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
SubjectRe: [v2 1/1] x86/cpufeatures: Implement Predictive Store Forwarding control.
From
Date


On 4/22/2021 12:49 PM, Randy Dunlap wrote:
> On 4/22/21 10:10 AM, Ramakrishna Saripalli wrote:
>> From: Ramakrishna Saripalli <rk.saripalli@amd.com>
>>
>> ====================
>> Signed-off-by: Ramakrishna Saripalli<rk.saripalli@amd.com>
>> ---
>> .../admin-guide/kernel-parameters.txt | 5 +++++
>> arch/x86/include/asm/cpufeatures.h | 1 +
>> arch/x86/include/asm/msr-index.h | 2 ++
>> arch/x86/kernel/cpu/amd.c | 19 +++++++++++++++++++
>> 4 files changed, 27 insertions(+)
>
> as from v1:

Randy, could you clarify your comments please?. Is there something here I need to change/clarify/fix?

>
>> diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt
>> index 04545725f187..58f6bd02385b 100644
>> --- a/Documentation/admin-guide/kernel-parameters.txt
>> +++ b/Documentation/admin-guide/kernel-parameters.txt
>> @@ -3940,6 +3940,11 @@
>> Format: {"off"}
>> Disable Hardware Transactional Memory
>>
>> + predict_store_fwd [X86] This option controls PSF mitigation
>
> predict_store_fwd= ...
>

OK

>> + off - Turns on PSF mitigation.
>> + on - Turns off PSF mitigation.
>> + default : on.
>
> default: on.
>

OK

>> +
>> preempt= [KNL]
>> Select preemption mode if you have CONFIG_PREEMPT_DYNAMIC
>> none - Limited to cond_resched() calls
> thanks.
>

\
 
 \ /
  Last update: 2021-04-22 21:34    [W:0.767 / U:0.204 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site