From: Pawan Gupta <pawan.kumar.gupta@linux.intel.com>
To: Borislav Petkov <bp@kernel.org>
Cc: Andrew Cooper <andrew.cooper3@citrix.com>,
Josh Poimboeuf <jpoimboe@redhat.com>,
David Kaplan <david.kaplan@amd.com>, X86 ML <x86@kernel.org>,
LKML <linux-kernel@vger.kernel.org>,
"Borislav Petkov (AMD)" <bp@alien8.de>
Subject: Re: [PATCH] x86/bugs: Remove X86_BUG_MMIO_UNKNOWN
Date: Mon, 14 Apr 2025 09:51:04 -0700 [thread overview]
Message-ID: <20250414165104.2ivcicu32vfxk5qv@desk> (raw)
In-Reply-To: <20250414150951.5345-1-bp@kernel.org>
On Mon, Apr 14, 2025 at 05:09:51PM +0200, Borislav Petkov wrote:
> From: "Borislav Petkov (AMD)" <bp@alien8.de>
>
> Whack this thing because:
>
> - the "unknown" handling is done only for this vuln and not for the
> others
>
> - it doesn't do anything besides reporting things differently. It
> doesn't apply any mitigations - it is simply causing unnecessary
> complications to the code which don't bring anything besides
> maintenance overhead to what is already a very nasty spaghetti pile
>
> - all the currently unaffected CPUs can also be in "unknown" status so
> there's no need for special handling here
>
> so get rid of it.
>
> Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Reviewed-by: Pawan Gupta <pawan.kumar.gupta@linux.intel.com>
prev parent reply other threads:[~2025-04-14 16:51 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-04-14 15:09 Borislav Petkov
2025-04-14 15:25 ` [tip: x86/cpu] " tip-bot2 for Borislav Petkov (AMD)
2025-04-14 16:51 ` Pawan Gupta [this message]
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