linux-kernel - Re: [PATCHv4, REBASED 0/4] x86: Reduce code duplication on page table initialization

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Message-ID: <6380e6f4-9450-476b-9a35-82d79ad7a5d2@intel.com>
Date: Thu, 31 Oct 2024 09:21:42 -0700
From: Dave Hansen <dave.hansen@...el.com>
To: "Kirill A. Shutemov" <kirill.shutemov@...ux.intel.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>,
 "Rafael J. Wysocki" <rafael@...nel.org>, Andy Lutomirski <luto@...nel.org>,
 Peter Zijlstra <peterz@...radead.org>, Baoquan He <bhe@...hat.com>
Cc: Ard Biesheuvel <ardb@...nel.org>, Tom Lendacky <thomas.lendacky@....com>,
 Andrew Morton <akpm@...ux-foundation.org>,
 Thomas Zimmermann <tzimmermann@...e.de>,
 Sean Christopherson <seanjc@...gle.com>, linux-kernel@...r.kernel.org,
 linux-acpi@...r.kernel.org
Subject: Re: [PATCHv4, REBASED 0/4] x86: Reduce code duplication on page table
 initialization

On 10/29/24 08:09, Kirill A. Shutemov wrote:
> Any feedback on this series?

It's tempting because it removes so much code, but it's also worrying
because these code paths are notoriously hard to test.

I'd be much happier if you'd send this after 6.13-rc1 drops and we give
it as much testing time as possible.