From nobody Fri Oct 10 09:18:05 2025 Received: from galois.linutronix.de (Galois.linutronix.de [193.142.43.55]) (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 C02EE2E8893; Sat, 14 Jun 2025 18:10:28 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=193.142.43.55 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1749924630; cv=none; b=WfIUzbtmRp+IGN/miVlMB7KFOvDd3gZol9B/cO3K+cBeK83EvRVSxIEPunuANfuX+pL6XMpS2QrxQq7GX+AVpRQmmncAksA+CPQ2XopGijW4dc6nejEQBbmDx6UH2kisHYjxN6TpgaEidxYGJ3Aeq3s3o2frnYk1XaqMMZk5gC8= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1749924630; c=relaxed/simple; bh=TVsXtgMLh/M3YQnXCjrANL11tbtfvBnz2H2jBF3ZVOs=; h=Date:From:To:Subject:Cc:In-Reply-To:References:MIME-Version: Message-ID:Content-Type; b=WnMnRB/FWBRgsZnVRTN4h9aUVQREMymeRuNRpZoivPBt24Ul7LCdfmyDqtevhpRsJwRLsqE7y5pU4A+m15/Rc5L9tuP/EBvIi3p5GH3KG3gczHEReAV6M0SQCqVTlabUmegPCsaDI0pcFAzlLGJuMIUW8cl7ieRV3Q1VjjgA4ZE= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linutronix.de; spf=pass smtp.mailfrom=linutronix.de; dkim=pass (2048-bit key) header.d=linutronix.de header.i=@linutronix.de header.b=Lx++csVn; dkim=permerror (0-bit key) header.d=linutronix.de header.i=@linutronix.de header.b=tf2EFyK3; arc=none smtp.client-ip=193.142.43.55 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linutronix.de Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linutronix.de Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=linutronix.de header.i=@linutronix.de header.b="Lx++csVn"; dkim=permerror (0-bit key) header.d=linutronix.de header.i=@linutronix.de header.b="tf2EFyK3" Date: Sat, 14 Jun 2025 07:31:41 -0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020; t=1749924626; h=from:from:sender:sender:reply-to:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=2mCcvBLO8NZIUwlT85SzTab0A/b1GootPrFseVJXDHw=; b=Lx++csVnvMRCAw9iJgFNeWpD951qEjk54A+wtfxkKbP9NM0eYht8/7q86LZVdlz77vyCTa Xw0MGnTtrHLp1XLgq3HW8UITaoyHV46d9U5K3NyI/awBmyhLRd/A0OfwNBi8k6C5XE4tiW hNQgr9YUOxfjQW0UKcgRWgt5iZVeqH8K9fsE8Xx/23Lkh3vc0r83p9mve5iHaQI1eLqpqr 9uXN6uACVg226YILiWy+i2oMx+mimJ8owsvGoy2+blUHzgZfHDXDriDZC6VFomZXIkthPi FTcd5LL2hpzuAzzXspGH2j7FDa/+m2LuIBbq+HcCVi1D8RZzH+tbyjQzZz5A7A== DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020e; t=1749924626; h=from:from:sender:sender:reply-to:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=2mCcvBLO8NZIUwlT85SzTab0A/b1GootPrFseVJXDHw=; b=tf2EFyK3H1cUdu6Ii/6vW6Xes2ZywrIiVbdzptub0NmFdVt37ktt8ckKIokecvoGXG5pr/ KYAZ4OIihTCMCxCw== From: "tip-bot2 for Ingo Molnar" Sender: tip-bot2@linutronix.de Reply-to: linux-kernel@vger.kernel.org To: linux-tip-commits@vger.kernel.org Subject: [tip: x86/kconfig] x86/kconfig/defconfig: Enable CONFIG_DRM_FBDEV_EMULATION=y Cc: Michael Kelley , Ingo Molnar , Vitaly Kuznetsov , Peter Zijlstra , Ard Biesheuvel , Arnd Bergmann , David Woodhouse , "H. Peter Anvin" , jgross@suse.com, Linus Torvalds , Masahiro Yamada , Michal Marek , linux-kernel@vger.kernel.org, x86@kernel.org In-Reply-To: =?utf-8?q?=3CSN6PR02MB4157B1676A6284ECD21E494FD490A=40SN6PR02MB?= =?utf-8?q?4157=2Enamprd02=2Eprod=2Eoutlook=2Ecom?= # Discussion> References: =?utf-8?q?=3CSN6PR02MB4157B1676A6284ECD21E494FD490A=40SN6PR02M?= =?utf-8?q?B4157=2Enamprd02=2Eprod=2Eoutlook=2Ecom?= # Discussion> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-ID: <174988630189.406.15753586837783578672.tip-bot2@tip-bot2> Robot-ID: Robot-Unsubscribe: Contact to get blacklisted from these emails Precedence: bulk Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable The following commit has been merged into the x86/kconfig branch of tip: Commit-ID: 860a6f26921a56a469e03a0f74d992ee217192df Gitweb: https://git.kernel.org/tip/860a6f26921a56a469e03a0f74d992ee2= 17192df Author: Ingo Molnar AuthorDate: Sat, 14 Jun 2025 09:10:55 +02:00 Committer: Ingo Molnar CommitterDate: Sat, 14 Jun 2025 09:24:35 +02:00 x86/kconfig/defconfig: Enable CONFIG_DRM_FBDEV_EMULATION=3Dy Michael Kelley reported that the x86 defconfig *almost* works well on Hyper-V guests out of box, with the exception of console support: > I built and tested a Hyper-V guest with defconfig. The Hyper-V storage > and keyboard drivers are pulled in automatically. [...] > > But the Linux console for each Hyper-V guest is a synthetic graphics > console, and that didn't work with the DRM_HYPERV driver. Missing > the console pretty much kills any usefulness. DRM doesn't have > Linux console support, so it needs CONFIG_DRM_FBDEV_EMULATION > to be set, and defconfig doesn't have it. So enable CONFIG_DRM_FBDEV_EMULATION. Also enable the dependent CONFIG_FRAMEBUFFER_CONSOLE_ROTATION option (disabled by default), as all major Linux distros have it enabled, probably as an sysadmin quality-of-life option: .config.distro.debian.x86_32: CONFIG_FRAMEBUFFER_CONSOLE_ROTATION=3Dy .config.distro.fedora.generic: CONFIG_FRAMEBUFFER_CONSOLE_ROTATION=3Dy .config.distro.opensuse.default: CONFIG_FRAMEBUFFER_CONSOLE_ROTATION=3Dy .config.distro.rhel.generic: CONFIG_FRAMEBUFFER_CONSOLE_ROTATION=3Dy .config.distro.ubuntu: CONFIG_FRAMEBUFFER_CONSOLE_ROTATION=3Dy There's no measurable build time impact within ~1% stddev: # before: 33.759 +- 0.286 seconds time elapsed ( +- 0.85% ) # after: 33.593 +- 0.314 seconds time elapsed ( +- 0.94% ) Suggested-by: Michael Kelley Signed-off-by: Ingo Molnar Acked-by: Vitaly Kuznetsov Cc: Peter Zijlstra Cc: Ard Biesheuvel Cc: Arnd Bergmann Cc: David Woodhouse Cc: H. Peter Anvin Cc: J=C3=BCrgen Gro=C3=9F Cc: Linus Torvalds Cc: Masahiro Yamada Cc: Michal Marek Cc: linux-kernel@vger.kernel.org Link: https://lore.kernel.org/r/SN6PR02MB4157B1676A6284ECD21E494FD490A@SN6P= R02MB4157.namprd02.prod.outlook.com # Discussion --- arch/x86/configs/i386_defconfig | 2 ++ arch/x86/configs/x86_64_defconfig | 3 +++ 2 files changed, 5 insertions(+) diff --git a/arch/x86/configs/i386_defconfig b/arch/x86/configs/i386_defcon= fig index aeba958..39a660d 100644 --- a/arch/x86/configs/i386_defconfig +++ b/arch/x86/configs/i386_defconfig @@ -239,8 +239,10 @@ CONFIG_AGP=3Dy CONFIG_AGP_AMD64=3Dy CONFIG_AGP_INTEL=3Dy CONFIG_DRM=3Dy +CONFIG_DRM_FBDEV_EMULATION=3Dy CONFIG_DRM_VIRTIO_GPU=3Dy CONFIG_DRM_HYPERV=3Dy +CONFIG_FRAMEBUFFER_CONSOLE_ROTATION=3Dy CONFIG_SOUND=3Dy CONFIG_SND=3Dy CONFIG_SND_HRTIMER=3Dy diff --git a/arch/x86/configs/x86_64_defconfig b/arch/x86/configs/x86_64_de= fconfig index c20100d..b5dc26f 100644 --- a/arch/x86/configs/x86_64_defconfig +++ b/arch/x86/configs/x86_64_defconfig @@ -116,6 +116,7 @@ CONFIG_ANON_VMA_NAME=3Dy CONFIG_USERFAULTFD=3Dy CONFIG_LRU_GEN=3Dy CONFIG_LRU_GEN_ENABLED=3Dy +# CONFIG_DAMON is not set CONFIG_NET=3Dy CONFIG_PACKET=3Dy CONFIG_XFRM_USER=3Dy @@ -248,8 +249,10 @@ CONFIG_AGP=3Dy CONFIG_AGP_AMD64=3Dy CONFIG_AGP_INTEL=3Dy CONFIG_DRM=3Dy +CONFIG_DRM_FBDEV_EMULATION=3Dy CONFIG_DRM_VIRTIO_GPU=3Dy CONFIG_DRM_HYPERV=3Dy +CONFIG_FRAMEBUFFER_CONSOLE_ROTATION=3Dy CONFIG_SOUND=3Dy CONFIG_SND=3Dy CONFIG_SND_HRTIMER=3Dy