From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 8719E25783C for ; Sun, 14 Dec 2025 08:47:45 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1765702065; cv=none; b=IPgTxAY2upkRBNiVETf7yx0yhFLsk+tG4jiqgDO1Ty4SvXKsbA6SI7eoZeqpZa5GwRStRId8kBvc0FBmrSX0DYMfkgrfFDeBDsuAoPuXZvzlZzqHbM72JV5GL8qiS4AyGpfkpZlF6r4Gl/lImr7Q9zcd5YXiycCD2B0YiYehuOc= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1765702065; c=relaxed/simple; bh=sTQGfIMIOOyBchjyUK1yoQvYxgKH111TYqQHeA7y9nw=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=SK/DJwV+Bp9wVJYgUPQd3SlXs9Gh4WQn1Te2qlcrMYB4jqesij19Sw1q6pV3NwhIR5YZjla3nXUMVvatAxuiM8A+BGjePJ2Gri8ZWz7ZLEePw+XgV3Z08lOk13VgB3pRFy1hZTdAf7HZR6keb5e41K8ZGYChV+4ln4OwMGca8jk= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=KfPdVCFl; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="KfPdVCFl" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 0F598C4CEF1; Sun, 14 Dec 2025 08:47:41 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1765702065; bh=sTQGfIMIOOyBchjyUK1yoQvYxgKH111TYqQHeA7y9nw=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=KfPdVCFlsiC/2YiXVaZb/oDhJVfMiSNS8+8UbSnjw4l3H09ESoTzaK/AbeSF7H9ab q8JOC9nwqZMet/ZLl/TBtTFs4KbHgyNEBb4OWa6P8Aq8pKCYrW7m2HLE3Tqcu3Swgs HYopM76+7kHvcvAT/Ka90WR52nUd30JKzJuoZqxRrsgARu+YvZJkFPLnE8ORKkpQMf 9dxfS9lDsKv3bgplEsM5Z021aSkc1Z46zND0UAj93YW8rR3uKNIzKmHlriaPib70MY FxG8Hndiw0YI5GwmaWwmtUmv4sY8weOQnmtfhQDUtuwerZzAS/nM0ZIx2/BhPkLfpw cFV8+EIEMuDWw== From: Ingo Molnar To: linux-kernel@vger.kernel.org Cc: Ingo Molnar , "Ahmed S . Darwish" , Andrew Cooper , Ard Biesheuvel , Arnd Bergmann , Borislav Petkov , Dave Hansen , "H . Peter Anvin" , John Ogness , Linus Torvalds , Peter Zijlstra , Thomas Gleixner , Arnd Bergmann Subject: [PATCH 06/15] x86/cpu: Remove the CONFIG_X86_INVD_BUG quirk Date: Sun, 14 Dec 2025 09:46:54 +0100 Message-ID: <20251214084710.3606385-7-mingo@kernel.org> X-Mailer: git-send-email 2.51.0 In-Reply-To: <20251214084710.3606385-1-mingo@kernel.org> References: <20251214084710.3606385-1-mingo@kernel.org> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Now that support for 486 CPUs is gone, remove this quirk as well. Signed-off-by: Ingo Molnar Reviewed-by: Arnd Bergmann Acked-by: Dave Hansen Cc: Ahmed S . Darwish Cc: Andrew Cooper Cc: Ard Biesheuvel Cc: H . Peter Anvin Cc: John Ogness Cc: Linus Torvalds Cc: Peter Zijlstra Link: https://lore.kernel.org/r/20250425084216.3913608-7-mingo@kernel.org --- arch/x86/Kconfig.cpu | 4 ---- arch/x86/kernel/traps.c | 7 ------- 2 files changed, 11 deletions(-) diff --git a/arch/x86/Kconfig.cpu b/arch/x86/Kconfig.cpu index 052e06fec3b1..53242bce0d27 100644 --- a/arch/x86/Kconfig.cpu +++ b/arch/x86/Kconfig.cpu @@ -248,10 +248,6 @@ config X86_F00F_BUG def_bool y depends on M586MMX || M586TSC || M586 -config X86_INVD_BUG - def_bool y - depends on M486SX || M486 - config X86_ALIGNMENT_16 def_bool y depends on MCYRIXIII || MK6 || M586MMX || M586TSC || M586 || MVIAC3_2 || MGEODEGX1 diff --git a/arch/x86/kernel/traps.c b/arch/x86/kernel/traps.c index bcf1dedc1d00..5434cba078fb 100644 --- a/arch/x86/kernel/traps.c +++ b/arch/x86/kernel/traps.c @@ -1473,13 +1473,6 @@ DEFINE_IDTENTRY(exc_coprocessor_error) DEFINE_IDTENTRY(exc_simd_coprocessor_error) { - if (IS_ENABLED(CONFIG_X86_INVD_BUG)) { - /* AMD 486 bug: INVD in CPL 0 raises #XF instead of #GP */ - if (!static_cpu_has(X86_FEATURE_XMM)) { - __exc_general_protection(regs, 0); - return; - } - } math_error(regs, X86_TRAP_XF); } -- 2.51.0