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Date: Wed, 12 Jun 2024 12:24:30 +0300
From: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>
To: Borislav Petkov <bp@alien8.de>
Cc: Thomas Gleixner <tglx@linutronix.de>, Ingo Molnar <mingo@redhat.com>, 
	Dave Hansen <dave.hansen@linux.intel.com>, x86@kernel.org, "Rafael J. Wysocki" <rafael@kernel.org>, 
	Peter Zijlstra <peterz@infradead.org>, Adrian Hunter <adrian.hunter@intel.com>, 
	Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@linux.intel.com>, Elena Reshetova <elena.reshetova@intel.com>, 
	Jun Nakajima <jun.nakajima@intel.com>, Rick Edgecombe <rick.p.edgecombe@intel.com>, 
	Tom Lendacky <thomas.lendacky@amd.com>, "Kalra, Ashish" <ashish.kalra@amd.com>, 
	Sean Christopherson <seanjc@google.com>, "Huang, Kai" <kai.huang@intel.com>, 
	Ard Biesheuvel <ardb@kernel.org>, Baoquan He <bhe@redhat.com>, "H. Peter Anvin" <hpa@zytor.com>, 
	"K. Y. Srinivasan" <kys@microsoft.com>, Haiyang Zhang <haiyangz@microsoft.com>, 
	kexec@lists.infradead.org, linux-hyperv@vger.kernel.org, linux-acpi@vger.kernel.org, 
	linux-coco@lists.linux.dev, linux-kernel@vger.kernel.org, Tao Liu <ltao@redhat.com>
Subject: Re: [PATCHv11 18/19] x86/acpi: Add support for CPU offlining for
 ACPI MADT wakeup method
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On Tue, Jun 11, 2024 at 09:46:53PM +0200, Borislav Petkov wrote:
> On Tue, Jun 11, 2024 at 06:47:05PM +0300, Kirill A. Shutemov wrote:
> > Borislav, given this code deduplication effort is not trivial, maybe we
> > can do it as a separate patchset on top of this one?
> 
> Sure, as long as it gets done and doesn't get delayed indefinitely by
> new and more important features enablement.

I will try to deliver it in timely manner.

> Usually, we do unifications and cleanups first - then new features but
> this kexec pile has been long in the making already...
> 
> > I also wounder if it makes sense to combine ident_map.c and
> > set_memory.c.  There's some overlap between the two.
> 
> Yeah, we have a bunch of different pagetable manipulating things, all
> with their peculiarities and unifying them and having a good set of APIs
> which everything else uses, is always a good thing.

Will give it a try.

> And since we're talking cleanups, there's another thing I've been
> looking at critically: CONFIG_X86_5LEVEL. Maybe it is time to get rid of
> it and make the 5level stuff unconditional. And get rid of a bunch of
> code since both vendors support 5level now...

Can do.

-- 
  Kiryl Shutsemau / Kirill A. Shutemov