From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by smtp.lore.kernel.org (Postfix) with ESMTP id ECA8BC7115B for ; Thu, 19 Jun 2025 05:52:28 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 767FC6B0088; Thu, 19 Jun 2025 01:52:28 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 738E16B008C; Thu, 19 Jun 2025 01:52:28 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 676776B0092; Thu, 19 Jun 2025 01:52:28 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0017.hostedemail.com [216.40.44.17]) by kanga.kvack.org (Postfix) with ESMTP id 57C786B0088 for ; Thu, 19 Jun 2025 01:52:28 -0400 (EDT) Received: from smtpin30.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay04.hostedemail.com (Postfix) with ESMTP id D4E691A1E09 for ; Thu, 19 Jun 2025 05:52:27 +0000 (UTC) X-FDA: 83571080334.30.CAA0C1A Received: from mgamail.intel.com (mgamail.intel.com [198.175.65.12]) by imf15.hostedemail.com (Postfix) with ESMTP id 2FFC6A0008 for ; Thu, 19 Jun 2025 05:52:24 +0000 (UTC) Authentication-Results: imf15.hostedemail.com; dkim=pass header.d=intel.com header.s=Intel header.b=MP5L78nD; spf=none (imf15.hostedemail.com: domain of kirill.shutemov@linux.intel.com has no SPF policy when checking 198.175.65.12) smtp.mailfrom=kirill.shutemov@linux.intel.com; dmarc=pass (policy=none) header.from=intel.com ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1750312345; h=from:from:sender: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: in-reply-to:in-reply-to:references:references:dkim-signature; bh=Gb5EGyv/L+5UQZBue7q+AgJeA77wc2BQh5BmXPOo7SI=; b=O5pHzSJLYCygFIXh/7omjYd3T9bsFTCwgP/5+ZUhDDiY2aNzSVIWz5JmKK3xcla9zeZPkk a+A9qA+IoWH5gATGINipqQFopWWvqfkRp8jUw9Kro45KFWyEjwCTBMi2Y+LrEL/qtzWNMp mDU0sGNFnFUCQze2GQxf4r2svyyOHOE= ARC-Authentication-Results: i=1; imf15.hostedemail.com; dkim=pass header.d=intel.com header.s=Intel header.b=MP5L78nD; spf=none (imf15.hostedemail.com: domain of kirill.shutemov@linux.intel.com has no SPF policy when checking 198.175.65.12) smtp.mailfrom=kirill.shutemov@linux.intel.com; dmarc=pass (policy=none) header.from=intel.com ARC-Seal: i=1; s=arc-20220608; d=hostedemail.com; t=1750312345; a=rsa-sha256; cv=none; b=wPkfnWYM6WZShsr1Viqq/+M3IwhtTv3HrggKcJtbBuEFbl5T8MRc9f27FgLUnGw5uJftgW qoA6iCS24O93NztoigBfSsqthYJ7yEQvYUm5vgmmN3e5L6DYzIlE12QQK+Ib1JOD0C/lS6 Bn1fiVrZVoq1hVIGfjl15mcltcx4LEg= DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1750312345; x=1781848345; h=date:from:to:cc:subject:message-id:references: mime-version:in-reply-to; bh=kc9iHWOTgIyamZMSgsXNsmgvoo2qBtnD9yutC/j1C7Y=; b=MP5L78nD1YMGq2RLgs2Z/baspNR5Jmhh3hP6TxD6qJKe3spDg4JirJcN 3Uav0dERVh/wQZ5kGWUHfPZJ+pYNsXb0pbmZExyyav2umEWBgNFu9LtHO RjCqVY/nVx92LTZPLITP0oZ653brLjAAHv1r2ehgMpGNdDAIgusa3qQsL LCoAgI90pep1uZiBIJeGgtOecwMRgVcq7gznhLesqrpeMX/PoD4YFsK4P TmXT5ISryA33hmoaF1yVrGSVE6HQy7lzZLfKXenEYPOh8YyrjRdb31lQk HZ6O7uXFaunw6hChpblUY1PD+onrwLMnBR/rZZ+0yTAED/Wk7FgvkNcEe w==; X-CSE-ConnectionGUID: 7pmEkVMoRSWsgnlzo9tn/g== X-CSE-MsgGUID: UJ0ZrUslTDeuLNiC0YBeGg== X-IronPort-AV: E=McAfee;i="6800,10657,11468"; a="63984729" X-IronPort-AV: E=Sophos;i="6.16,247,1744095600"; d="scan'208";a="63984729" Received: from orviesa006.jf.intel.com ([10.64.159.146]) by orvoesa104.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 18 Jun 2025 22:52:24 -0700 X-CSE-ConnectionGUID: NBnyr+FNTCibP1AKIZk+HQ== X-CSE-MsgGUID: ggTQWJ63QPmslLBeu+LZsg== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.16,247,1744095600"; d="scan'208";a="149996168" Received: from black.fi.intel.com ([10.237.72.28]) by orviesa006.jf.intel.com with ESMTP; 18 Jun 2025 22:52:20 -0700 Received: by black.fi.intel.com (Postfix, from userid 1000) id 2E7EF12D; Thu, 19 Jun 2025 08:52:18 +0300 (EEST) Date: Thu, 19 Jun 2025 08:52:18 +0300 From: "Kirill A. Shutemov" To: Zack Rusin Cc: dri-devel@lists.freedesktop.org, Broadcom internal kernel review list , ian.forbes@broadcom.com, martin.krastev@broadcom.com, maaz.mombasawala@broadcom.com, Marko Kiiskila , Ingo Molnar , Andrew Morton , Dave Hansen , Linus Torvalds , Peter Zijlstra , linux-mm@kvack.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH] drm/vmwgfx: Fix guests running with TDX/SEV Message-ID: References: <20250618192926.1092450-1-zack.rusin@broadcom.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20250618192926.1092450-1-zack.rusin@broadcom.com> X-Rspamd-Queue-Id: 2FFC6A0008 X-Rspam-User: X-Rspamd-Server: rspam07 X-Stat-Signature: 1jcqrr98484qf51p61egu5wrpsye7unm X-HE-Tag: 1750312344-44082 X-HE-Meta: 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 s0twIQ2I rUUhrUSAOJnGcwKWpvHq9zOWcTzAzypnyw6MUTzGiE698wcyMQAk83S54epPFNY9Kq8Q7TPmlQNxcXarOVgnhp7FY++loinrBwB679Td61+GB90MdguQTO1F12/bR7EZVVQlYc+y0LXujR6lLtRFBR96pxIrTQvvD85o5V4s+phYtzhJJnpqnAX/S/gOmweOro0yndE9qdMuKq/r4VtcDusuWkLWvshyM/xaR7QRCjkEX1waMmFaGL9tLA3KmUtle73EzOQ/FF57lPPlUhmOwJQnooer1ZfQsTIIkaLVx9odSxDu2GUuJcLSUjrGdD/7msHjdUVBoxfKXgysZgK4yT/FxAHX4rodi4zA5asL/lzSmnwBmaiO9kK8cfcSTVjn2MmTP9HJ75NQI6WwydpaFr3vHgsNrL+DXXS8VsntvuwK1hsTu/V/1wqE6pA== X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On Wed, Jun 18, 2025 at 03:29:26PM -0400, Zack Rusin wrote: > From: Marko Kiiskila > > Commit 81256a50aa0f ("x86/mm: Make memremap(MEMREMAP_WB) map memory as > encrypted by default") changed the default behavior of > memremap(MEMREMAP_WB) and started mapping memory as encrypted. > The driver requires the fifo memory to be decrypted to communicate with > the host but was relaying on the old default behavior of > memremap(MEMREMAP_WB) and thus broke. > > Fix it by explicitly specifying the desired behavior and passing > MEMREMAP_DEC to memremap. > > Fixes: 81256a50aa0f ("x86/mm: Make memremap(MEMREMAP_WB) map memory as encrypted by default") > Signed-off-by: Marko Kiiskila > Signed-off-by: Zack Rusin > Cc: Kirill A. Shutemov > Cc: Ingo Molnar > Cc: Andrew Morton > Cc: Dave Hansen > Cc: Linus Torvalds > Cc: Peter Zijlstra > Cc: linux-mm@kvack.org > Cc: linux-kernel@vger.kernel.org Acked-by: Kirill A. Shutemov -- Kiryl Shutsemau / Kirill A. Shutemov