linux-kernel - Re: [PATCH 1/2] x86/fred: Always install system interrupt handler into IDT

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Message-ID: <20240703024438.GA76553@k08j02272.eu95sqa>
Date: Wed, 03 Jul 2024 10:44:38 +0800
From: "Hou Wenlong" <houwenlong.hwl@...group.com>
To: Xin Li <xin@...or.com>
Cc:  <linux-kernel@...r.kernel.org>,
  "Lai Jiangshan" <jiangshan.ljs@...group.com>,
  "Thomas Gleixner" <tglx@...utronix.de>,
  "Ingo Molnar" <mingo@...hat.com>,
  "Borislav Petkov" <bp@...en8.de>,
  "Dave Hansen" <dave.hansen@...ux.intel.com>,
   <x86@...nel.org>,
  "H. Peter Anvin" <hpa@...or.com>,
  "Xin Li" <xin3.li@...el.com>,
  "Jacob Pan" <jacob.jun.pan@...ux.intel.com>,
  "Rick Edgecombe" <rick.p.edgecombe@...el.com>,
  "Paolo Bonzini" <pbonzini@...hat.com>
Subject: Re: [PATCH 1/2] x86/fred: Always install system interrupt handler
 into IDT

On Wed, Jul 03, 2024 at 01:16:29AM +0800, Xin Li wrote:
> On 6/28/2024 8:18 AM, Xin Li wrote:
> >On 6/28/2024 2:36 AM, Hou Wenlong wrote:
> >>Hi Xin,
> >>
> >>It seems preferable to parse the FRED command line and disable FRED
> >>early instead of using this method. As mentioned in my cover letter, I
> >>initially attempted to fix the problem this way (by parsing the command
> >>line in cpu_parse_early_param()). Should I send a new patch for it, or
> >>will you be covering it in your work to enable FRED early?
> >>
> >
> >I have done it in my patches that enables FRED early, but if you want,
> >you can post it, because you're a key contributor in this work.
> >
> 
> Please let me know if you want to do it.
> 
Hi Xin,

Sorry for forgetting to reply. I think it would be better for the fix to
be covered in your work.

Thanks!

> Thanks!
>     Xin