linux-kernel - Re: [PATCH v2] x86/efi: Safely enable unaccepted memory in UEFI

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Message-ID: <20230117103451.74k6eddipikhml3y@sirius.home.kraxel.org>
Date:   Tue, 17 Jan 2023 11:34:51 +0100
From:   Gerd Hoffmann <kraxel@...hat.com>
To:     Dave Hansen <dave.hansen@...el.com>
Cc:     "Kirill A. Shutemov" <kirill.shutemov@...ux.intel.com>,
        Dionna Glaze <dionnaglaze@...gle.com>,
        linux-kernel@...r.kernel.org, linux-efi@...r.kernel.org,
        x86@...nel.org, jiewen.yao@...el.com, devel@...2.groups.io,
        Ard Biescheuvel <ardb@...nel.org>,
        "Min M. Xu" <min.m.xu@...el.org>,
        James Bottomley <jejb@...ux.ibm.com>,
        Tom Lendacky <Thomas.Lendacky@....com>,
        Erdem Aktas <erdemaktas@...gle.com>,
        Dave Hansen <dave.hansen@...ux.intel.com>
Subject: Re: [PATCH v2] x86/efi: Safely enable unaccepted memory in UEFI

  Hi,

> In any case, the firmware side of things didn't seem like _that_ much
> code.  So, I'm not protesting *that* strongly.  But, I also don't
> believe for a second that this is going to be removed in 3-5 years.

If things are going roughly as I expect them to go (both tdx support and
unaccepted memory support land upstream this year; distros enable it by
default) we should be able to drop this when the 6.1-lts kernel goes
EOL.  First in edk2, later in linux too.

take care,
  Gerd