From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from layka.disroot.org (layka.disroot.org [178.21.23.139]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id DFC8432F75B; Tue, 23 Jun 2026 16:57:43 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=178.21.23.139 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1782233865; cv=none; b=nY0u+s1wvT4/WM0D1DbA4+3jQr8T1Vix8irDBMDjNyj/7yKRhBspJau7c+cjS+VmZ+iYA8A/lpQOQvYTfe5gxr/8+7AQJpVGyjjys801S5wvAXur9MXqXPpOzsh/Ihg0Xqjped6WJqUq3wHCL6ink8PwIYjraURJUOMfjfn29xc= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1782233865; c=relaxed/simple; bh=V3ZyqXic/yFE7SEJj1aMbcxqUfOKM4l7oGyg1fmge2Q=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=LGE9IYGbQ/QKlDhIR0WQzd1rpLMduWZGvPD7tAUD5opMil3vW73GIquqCtSwoAcn4malJyw/gB9PqQnrQ8uzoi5LWASVAvYh1y38SH+jhu7iO9SzlxPhWL8UBoavATaA4BagmFpYKla/XZHC58GLrzjwqrZDtEsX4OPHiVxCsVs= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=disroot.org; spf=pass smtp.mailfrom=disroot.org; dkim=pass (2048-bit key) header.d=disroot.org header.i=@disroot.org header.b=RwaoEhgH; arc=none smtp.client-ip=178.21.23.139 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=disroot.org Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=disroot.org Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=disroot.org header.i=@disroot.org header.b="RwaoEhgH" Received: from mail01.disroot.lan (localhost [127.0.0.1]) by disroot.org (Postfix) with ESMTP id 9008526E45; Tue, 23 Jun 2026 18:57:42 +0200 (CEST) X-Virus-Scanned: SPAM Filter at disroot.org Received: from layka.disroot.org ([127.0.0.1]) by localhost (disroot.org [127.0.0.1]) (amavis, port 10024) with ESMTP id aAQpZxlVdYkq; Tue, 23 Jun 2026 18:57:42 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=disroot.org; s=mail; t=1782233862; bh=V3ZyqXic/yFE7SEJj1aMbcxqUfOKM4l7oGyg1fmge2Q=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=RwaoEhgHdVZ42vAOR/3v1LoSLfejTfp/8+6HC3GRCq3pzYaXaI/ykOLXtAyCnrFJz dgjOARlhPPfCsxs7YH2HL2MArP8i2lALSVjmnQUBoRUGIkUcKv7Rgiz/qzErD1BMqK 93InyAqLx+BzD7HZ7iuaLxaju5pRxbpA5rfDLU5yCM53IlgF8zSJtDMuIS1wnV3ywF pv4cHpt531qAtn9OA6bhovmutnUuEuZ5QhhnaZEMzdFLAkwke3Wb9pJGOvjQPeTnvj cKG3r4i2iTEM8AE9NeNNXjrtixIlsXBeiF+cuZi5zaqv+6VDVXKWRDqR8pbuhLs+IJ RtVAcy5/LjuJA== From: Marco Scardovi To: moravec@ukf.sk Cc: bp@alien8.de, crecklin@redhat.com, dave.hansen@linux.intel.com, hpa@zytor.com, linux-kernel@vger.kernel.org, linux-pm@vger.kernel.org, mingo@redhat.com, pavel@kernel.org, rafael@kernel.org, regressions@leemhuis.info, regressions@lists.linux.dev, scardracs@disroot.org, tglx@kernel.org, x86@kernel.org Subject: [PATCH v2 2/4] PM: hibernate: Define and parse hibernate=relaxed_memmap parameter Date: Tue, 23 Jun 2026 18:47:28 +0200 Message-ID: <20260623165724.10753-3-scardracs@disroot.org> In-Reply-To: <20260623165724.10753-1-scardracs@disroot.org> References: <20260623165724.10753-1-scardracs@disroot.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 Define the 'hibernate_relaxed_memmap' global variable and parse the 'relaxed_memmap' option under the 'hibernate=' kernel boot parameter. This enables users to relax E820 memory map integrity checks during resume. Assisted-by: Antigravity:gemini-3.5-flash Signed-off-by: Marco Scardovi --- kernel/power/hibernate.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/kernel/power/hibernate.c b/kernel/power/hibernate.c index d2479c69d71a..62ce708f37bd 100644 --- a/kernel/power/hibernate.c +++ b/kernel/power/hibernate.c @@ -41,6 +41,7 @@ static int nocompress; static int noresume; static int nohibernate; +bool hibernate_relaxed_memmap; static int resume_wait; static unsigned int resume_delay; static char resume_file[256] = CONFIG_PM_STD_PARTITION; @@ -1430,6 +1431,8 @@ static int __init hibernate_setup(char *str) } else if (!strncmp(str, "no", 2)) { noresume = 1; nohibernate = 1; + } else if (!strncmp(str, "relaxed_memmap", 14)) { + hibernate_relaxed_memmap = true; } else if (IS_ENABLED(CONFIG_STRICT_KERNEL_RWX) && !strncmp(str, "protect_image", 13)) { enable_restore_image_protection(); -- 2.54.0