From mboxrd@z Thu Jan 1 00:00:00 1970 Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.remote-ip=82.195.75.108 ARC-Seal: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; cv=none; t=1793698501; b=qwhCHzkSM1FyxjOjq9dueYUkoY2uIDmXVuA3dKKEm1REttkAUPVgPNzGOUOB2PYZw/zP LCtsk0pRrXMz+uREsb4PvR4Ma+XtPA3BNJmCDlu/FzDi/PZD6y6HCI7zpEcKJkdEF5BNc m/apNlX2qQZaOELMJk4jvHEspA3opOcb+Laa62pe4uUxNuCD/ydvA69r21VCIR8C7WhhB 33bOUc1icsm4RDjJ52IKNSLZMLjp6YnHxxe7+d39mk18vi39Ul/E9ogcmI+RN0q3+w7Zs cwQqZoIuUZgCxDDrg9ZZdZlxRX7bVRWJPndguh6nlo2geEyVGNHCTewzIirxZOfTDwA== ARC-Message-Signature: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; c=relaxed/relaxed; t=1793698501; h=DMARC-Filter:DKIM-Signature:Received:Date:From:To:Cc:Subject: Message-ID:References:MIME-Version:Content-Type:Content-Disposition: In-Reply-To:X-Debian-User; bh=duchPy3gA7qrB3uLfSZGqw9HsG8qAFPps9294n5glZI=; b=v6iOrGLgyRkguk5KbY+G2Zfr4ewSUwKp9hXSDod8OYsqO0sWbCxhNQvwDcRvD5/VDnDS bukQFyowGnDYQ96xIE0SrNXZdndJaf0ow8lS+Oj4fszQveYdrcjMikpJLOleY7cQtlc6N QLrDJ3t7F9gZ6t9sPcvaHpYYwWMUGbF3klud7oxPc2l95stu66yLyFqf7SqEatAhqQSrk 5sQ782SU1HM5Uv8QgZ1VipAQlQbbX9kdx6hnutxrNbOVftAA7B09nC6xed45y3JAdtUaw qi2WieUzg3Fj1isyYez+8xBr8VEh8FJzH/pmmLqeTpAQaiGQqVoMCUG7+ua08qIGSOQ== ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass header.from=debian.org; spf=pass smtp.mailfrom=debian.org; dkim=pass header.d=debian.org header.i=@debian.org header.a=rsa-sha256 header.s=smtpauto.stravinsky header.b=dKvnBZaL; arc=none smtp.remote-ip=82.195.75.108 Received: from stravinsky.debian.org (stravinsky.debian.org [82.195.75.108]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange ECDHE (prime256v1) server-signature ECDSA (prime256v1) server-digest SHA256) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 59872606A324 for ; Tue, 3 Nov 2026 09:35:00 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.2 smtp.subspace.kernel.org 59872606A324 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=debian.org Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=debian.org Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key, unprotected) header.d=debian.org header.i=@debian.org header.a=rsa-sha256 header.s=smtpauto.stravinsky header.b=dKvnBZaL DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=debian.org; s=smtpauto.stravinsky; h=X-Debian-User:In-Reply-To:Content-Type:MIME-Version: References:Message-ID:Subject:Cc:To:From:Date:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description; bh=duchPy3gA7qrB3uLfSZGqw9HsG8qAFPps9294n5glZI=; b=dKvnBZaLPaI/I/A5GwmkqIKC+d Y4JksYIStSOUkxIv5bKdzRJtpTD+iFZYz5OnpSEnuebf3/F8PxIMQxVyNY95Z8eq9DN2y2NUkDjI8 OdFGtSmT2EPTvjbvh36L+ZS5vNmQ+b1WMznPIkhvcLIeFbQ98Y/fIzkaztzlNN3fSzBD3G27LBm5+ zhEX/T66At8Hg+Z2EZPaU35BPD7w951BqYcOZPd3C81MzG3YYflDNX4sfM2X0eUDU3qvnyyXVtnNT NkDI5y7oxsgpZ5h8zLUQ2HXCCu/YE2+izlXqmNGmQN72HVz4lX64TdZZyz/dGZusBRrxftXAII4CE 1K8Wb6Bg==; Received: from authenticated-user by stravinsky.debian.org with esmtpsa (TLS1.3:ECDHE_X25519__RSA_PSS_RSAE_SHA256__AES_256_GCM:256) (Exim 4.96) (envelope-from ) id 1xOAug-006pz5-1E; Tue, 03 Nov 2026 09:34:42 +0000 Date: Tue, 3 Nov 2026 01:34:36 -0800 From: Breno Leitao To: Dave Hansen Cc: Thomas Gleixner , Ingo Molnar , Borislav Petkov , Dave Hansen , x86@kernel.org, "H. Peter Anvin" , Tom Lendacky , Neeraj Upadhyay , Nikunj A Dadhania , linux-kernel@vger.kernel.org, catalin.marinas@arm.com, kernel-team@meta.com Subject: Re: [PATCH] x86/sev: Fix kmemleak false positive for the RMP segment descriptors Message-ID: References: <20261102-sev-rmp-kmemleak-v1-1-e6fb2eb96e79@debian.org> <036145d8-46b2-4389-afd7-26c897d09ce7@intel.com> X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: X-Debian-User: leitao On Mon, Nov 02, 2026 at 02:54:06PM -0800, Dave Hansen wrote: > >> Why don't we just kmalloc() the thing? > > > > That would do the work as well, if this is an option. > > I don't see a reason it needs to be allocated directly by the page > allocator. My friendly LLM agrees with me. kmalloc(PAGE_SIZE) aligns to > page boundaries and has for years. > > BTW, there's almost no reason to use the page allocator directly these days. Ack. Let me respin and use kmalloc, and use kmalloc(), simplifying the fix. Thanks for the review and suggestion, --breno