From patchwork Tue Apr 27 12:56:33 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jan Beulich X-Patchwork-Id: 12226703 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-17.2 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED, USER_AGENT_SANE_1 autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id B10CFC433B4 for ; Tue, 27 Apr 2021 12:56:47 +0000 (UTC) Received: from lists.xenproject.org (lists.xenproject.org [192.237.175.120]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 5FE2B613D8 for ; Tue, 27 Apr 2021 12:56:47 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 5FE2B613D8 Authentication-Results: mail.kernel.org; dmarc=fail (p=quarantine dis=none) header.from=suse.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=xen-devel-bounces@lists.xenproject.org Received: from list by lists.xenproject.org with outflank-mailman.118459.224596 (Exim 4.92) (envelope-from ) id 1lbNGV-0003bp-Uf; Tue, 27 Apr 2021 12:56:35 +0000 X-Outflank-Mailman: Message body and most headers restored to incoming version Received: by outflank-mailman (output) from mailman id 118459.224596; Tue, 27 Apr 2021 12:56:35 +0000 Received: from localhost ([127.0.0.1] helo=lists.xenproject.org) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1lbNGV-0003bi-R5; Tue, 27 Apr 2021 12:56:35 +0000 Received: by outflank-mailman (input) for mailman id 118459; Tue, 27 Apr 2021 12:56:35 +0000 Received: from us1-rack-iad1.inumbo.com ([172.99.69.81]) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1lbNGV-0003bb-7O for xen-devel@lists.xenproject.org; Tue, 27 Apr 2021 12:56:35 +0000 Received: from mx2.suse.de (unknown [195.135.220.15]) by us1-rack-iad1.inumbo.com (Halon) with ESMTPS id c390bd37-2823-428f-b64b-871f8272425d; Tue, 27 Apr 2021 12:56:34 +0000 (UTC) Received: from relay2.suse.de (unknown [195.135.221.27]) by mx2.suse.de (Postfix) with ESMTP id AFE0EB190; Tue, 27 Apr 2021 12:56:33 +0000 (UTC) X-BeenThere: xen-devel@lists.xenproject.org List-Id: Xen developer discussion List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xenproject.org Precedence: list Sender: "Xen-devel" X-Inumbo-ID: c390bd37-2823-428f-b64b-871f8272425d X-Virus-Scanned: by amavisd-new at test-mx.suse.de DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.com; s=susede1; t=1619528193; h=from:from:reply-to: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=P0oy01Y/07q3+WCTPLWPJmj0XnG5cCqIDnUl08wgz+c=; b=dTXmFjwO5z3Xu+AfHxr94gHX42Lej1gFRshWInrkSPuCTHllJ2i6q7EDkkaPGmZ5fEkp/C UYuu9rmBpUGfMYP+X/6FBuKn8VZyVn4geK6ZwVckLEAOBmGtlnRKQ+q0MR1h97F9/ct0Z6 0oZt6s44BuFyKAbFKdZdJqAt1vVeDB8= Subject: [PATCH 7/7] video/vesa: adjust (not just) command line option handling From: Jan Beulich To: "xen-devel@lists.xenproject.org" Cc: Andrew Cooper , Wei Liu , =?utf-8?q?Roger_Pau_Monn=C3=A9?= References: <6d6da76c-ccc8-afa2-bd06-5ae132c354f2@suse.com> Message-ID: <7e3f69d7-23e8-397d-72b6-8c489d80ea45@suse.com> Date: Tue, 27 Apr 2021 14:56:33 +0200 User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:78.0) Gecko/20100101 Thunderbird/78.10.0 MIME-Version: 1.0 In-Reply-To: <6d6da76c-ccc8-afa2-bd06-5ae132c354f2@suse.com> Content-Language: en-US Document both options. Add section annotations to both variables holding the parsed values as well as a few adjacent ones. Adjust the types of font_height and vga_compat. Signed-off-by: Jan Beulich --- a/docs/misc/xen-command-line.pandoc +++ b/docs/misc/xen-command-line.pandoc @@ -2369,9 +2369,21 @@ cache-warming. 1ms (1000) has been measu ### vesa-map > `= ` +> Default: `0` + +Specify, in MiB, the portion of video RAM to actually remap. This will be +honored only when large enough to cover the space needed for the chosen video +mode, and only when less than a non-zero value possibly specified through +'vesa-ram'. + ### vesa-ram > `= ` +> Default: `0` + +This allows to override the amount of video RAM, in MiB, determined to be +present. + ### vga > `= ( ask | current | text-80x | gfx-xx | mode- )[,keep]` --- a/xen/drivers/video/vesa.c +++ b/xen/drivers/video/vesa.c @@ -19,17 +19,17 @@ static void lfb_flush(void); -static unsigned char *lfb; -static const struct font_desc *font; -static bool_t vga_compat; +static unsigned char *__read_mostly lfb; +static const struct font_desc *__initdata font; +static bool __initdata vga_compat; -static unsigned int vram_total; +static unsigned int __initdata vram_total; integer_param("vesa-ram", vram_total); -static unsigned int vram_remap; +static unsigned int __initdata vram_remap; integer_param("vesa-map", vram_remap); -static int font_height; +static unsigned int __initdata font_height; static int __init parse_font_height(const char *s) { if ( simple_strtoul(s, &s, 10) == 8 && (*s++ == 'x') )