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 52E24296716 for ; Thu, 15 May 2025 08:57:35 +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=1747299456; cv=none; b=HV1Q2UDoObUPWnv8LY1qPGTJ1OiYqE4mPgHychkYFb4ioAc8e4rQ93yVRCQB5NO83oTwXdKOqpr2IqJZq02S+TFLH9SkgLVqLC52Mrq7/IBdiOpqpeehelXQ1YhCo+fr3EzwScDrtexSJsaQYOJoileYA1ESif+TgxMIS6OSdas= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1747299456; c=relaxed/simple; bh=KBbEoUPAFEjvEFchsDK6DS/acJAUILeDFlhNx002Pj8=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=eVC6iIHk+EZF9z0g9giDYslLgtDpnM3Ed0aV2IWfU1iaS0JrWkbKs1GoAjHLxtvr6JBoSd3Wn8Zj9t3F+TzPPEhj3+mC4yyo6ugQ+MAV9+i4YSByxIoJzjSdasJgzNgcL/35ONdZSA7mFBmqWkwJOl5H6rc9llYohJ3bgEjn9GU= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=aJnTh0Lb; 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="aJnTh0Lb" Received: by smtp.kernel.org (Postfix) with ESMTPSA id BAC7CC4CEE9; Thu, 15 May 2025 08:57:32 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1747299455; bh=KBbEoUPAFEjvEFchsDK6DS/acJAUILeDFlhNx002Pj8=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=aJnTh0Lbs1LS5gYBRVJLWRhQG7DoeT3i5K33abRSrY5aBXuQiCP4UcujMqe9IAJN1 NN8hTp4Nq4gdxdDXPtey1fqqzqtLgPpuf+gDUeQ0yon3gwV3DeMlQvLf1qwzZs/lCV zgi31t9vaaZjhJUqmA12c2riC8VMOYZtjmsE4h4TLFCa6n7uJAHsBv9U9wMUmrlWbQ TX5S/cFxm+LelrhcHC74nlbfplmRyrwLKfzRdGkg4Lle07CJUSPkX4TUZFQAwD8PEC fOTYIgezKuVz5VpFQ6aou/nieE15M5gWpRn8ECy4sMXgl9ZNfejJftMppM9YWO2uDK mr5Cun1z98mBw== 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: Thu, 15 May 2025 10:56:56 +0200 Message-ID: <20250515085708.2510123-7-mingo@kernel.org> X-Mailer: git-send-email 2.45.2 In-Reply-To: <20250515085708.2510123-1-mingo@kernel.org> References: <20250515085708.2510123-1-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 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 abe4596ffa47..246a221c32e2 100644 --- a/arch/x86/Kconfig.cpu +++ b/arch/x86/Kconfig.cpu @@ -224,10 +224,6 @@ 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 94c0236963c6..8d08c58b3fe2 100644 --- a/arch/x86/kernel/traps.c +++ b/arch/x86/kernel/traps.c @@ -1346,13 +1346,6 @@ 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); } -- 2.45.2