From nobody Sun Feb 8 23:25:51 2026 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 CB96E1B6D11 for ; Fri, 25 Apr 2025 08:43:05 +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=1745570585; cv=none; b=Nu3iQNPzKoI2RDOH9D3i6RufkNzGl+Nv4PfalzFOcfNdT5OxhSUDRYQZrVngw1W9KcdHmBeN4X7lo9bg8+JAnJ26ixJZuCw5eM8VM3ULTww5b5Zk3AZVNJedCTqOxwHvRO9WLySAstwTFzwVW9lAjKy7YftKmi3kPSiqXrRR11c= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1745570585; c=relaxed/simple; bh=PIC1RYzVyDxRiQe/qEsgFbpLdGg7qmiKb8xV6wOUDuE=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=Nm331TSpV9CioNTVuYZ8UsxTA/et6nuI9oOfEtGQAmTseadsRHnqT3ujA8dJMuLsqzaaKyi2EJoxUlx3LpyoqjvKSnkIbjradbqbg9w1GwYp2YFv3BExdUlJIkN1Ds8pZb54j3bOaAwD8UuwgQSILMpCjG0ajczteY6g9be6cWg= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=lULEzL2k; 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="lULEzL2k" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 1611AC4CEEC; Fri, 25 Apr 2025 08:43:02 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1745570585; bh=PIC1RYzVyDxRiQe/qEsgFbpLdGg7qmiKb8xV6wOUDuE=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=lULEzL2kK9vB/lLVic+o9OVO36dunrIj2d9f/qPj7QFpPOvKFnto6Tns8fL82B15V BoZJaYDQTm3ZrrpkeB2EEBllAv3cIefBtmwQ2yv1hcJeLEoP8Z+gl+EIzZlnw/JJTL JUKl2cF7QYtpenbfjgfGljA9rQdmZ9b+0KxfTXkJ4A3BiH23bT5/BYTQhZGCPjhWhq yhg5YLbxFAitwO+iBddVqIW4YjhGP+lAtsYarTHzuCWHj+kcEvWVFJ7wh/37UFDIuG cpaZuHAnGmMtudt4ZE9pb/thiUOTkiYzJjYHzVpJ1pwZ6yRCBKKRR23LYpLb7db+ev J9yOujJhZm2ag== 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 Subject: [PATCH 11/15] x86/cpu: Make CONFIG_X86_TSC unconditional Date: Fri, 25 Apr 2025 10:42:08 +0200 Message-ID: <20250425084216.3913608-12-mingo@kernel.org> X-Mailer: git-send-email 2.45.2 In-Reply-To: <20250425084216.3913608-1-mingo@kernel.org> References: <20250425084216.3913608-1-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: quoted-printable Content-Type: text/plain; charset="utf-8" I.e. it's a boot time requirement for the CPU to support it. Signed-off-by: Ingo Molnar --- arch/x86/Kconfig | 1 - arch/x86/Kconfig.cpu | 1 - arch/x86/xen/Kconfig | 2 +- 3 files changed, 1 insertion(+), 3 deletions(-) diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig index 137b5ddf1f86..465e5abd2750 100644 --- a/arch/x86/Kconfig +++ b/arch/x86/Kconfig @@ -661,7 +661,6 @@ config X86_INTEL_QUARK depends on X86_32 depends on X86_EXTENDED_PLATFORM depends on X86_PLATFORM_DEVICES - depends on X86_TSC depends on PCI depends on PCI_GOANY depends on X86_IO_APIC diff --git a/arch/x86/Kconfig.cpu b/arch/x86/Kconfig.cpu index ab4988e06d86..30466a258db8 100644 --- a/arch/x86/Kconfig.cpu +++ b/arch/x86/Kconfig.cpu @@ -238,7 +238,6 @@ config X86_USE_PPRO_CHECKSUM =20 config X86_TSC def_bool y - depends on (MWINCHIP3D || MCRUSOE || MEFFICEON || MCYRIXIII || MK7 || MK6= || MPENTIUM4 || MPENTIUMM || MPENTIUMIII || MPENTIUMII || M686 || M586MMX = || M586TSC || MVIAC3_2 || MVIAC7 || MGEODEGX1 || MGEODE_LX || MATOM) || X86= _64 =20 config X86_HAVE_PAE def_bool y diff --git a/arch/x86/xen/Kconfig b/arch/x86/xen/Kconfig index 98d8a50d2aed..222b6fdad313 100644 --- a/arch/x86/xen/Kconfig +++ b/arch/x86/xen/Kconfig @@ -10,7 +10,7 @@ config XEN select X86_HV_CALLBACK_VECTOR depends on X86_64 || (X86_32 && X86_PAE) depends on X86_64 || (X86_GENERIC || MPENTIUM4 || MATOM) - depends on X86_LOCAL_APIC && X86_TSC + depends on X86_LOCAL_APIC help This is the Linux Xen port. Enabling this will allow the kernel to boot in a paravirtualized environment under the --=20 2.45.2