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 X-Spam-Level: X-Spam-Status: No, score=-16.8 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED, USER_AGENT_GIT autolearn=unavailable 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 3DDFDC4361B for ; Thu, 10 Dec 2020 14:56:08 +0000 (UTC) Received: from merlin.infradead.org (merlin.infradead.org [205.233.59.134]) (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 B9688206D5 for ; Thu, 10 Dec 2020 14:56:07 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org B9688206D5 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=arm.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=merlin.20170209; h=Sender:Content-Transfer-Encoding: Content-Type:MIME-Version:Cc:List-Subscribe:List-Help:List-Post:List-Archive: List-Unsubscribe:List-Id:References:In-Reply-To:Message-Id:Date:Subject:To: From:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=IV7YyNX97BHB7Y4VsToHGAb9w33IofZUcDHtfBcdgUY=; b=qRvD80aV3OCiX8ljN7RroVuXGg md9Ug1eiU7XG1CHbfKrAqytZ3QwWkG/+z/zZG/VGiTlYFjiBFLBG0er6dvaPDB6JHF1KD0DGG2bi6 /HxXICCcIJDDWCuxHGZUfHCms1f7G0K9ZF9NpCR4DQiMWOtUX8YMw32sr7LAUnj5Iic0GovYi2isD rtdW8sjgrqWkjYsKkwOyayXoAICA2F9tgw06Seags7SXkZ2svxlHMM7dX/+DyUBAXFD+CPV4BllSH 2MLxsSiSCDx4c1qH97oiZtI2VQguS0HrIQjsBTULtV1txuDEVHagLv/zqbbQ5daG503Kqo1tGacwn j77jh97Q==; Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1knNKs-0005u8-Ry; Thu, 10 Dec 2020 14:54:26 +0000 Received: from casper.infradead.org ([2001:8b0:10b:1236::1]) by merlin.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1knNIl-0004ot-FX for linux-arm-kernel@merlin.infradead.org; Thu, 10 Dec 2020 14:52:15 +0000 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=casper.20170209; h=References:In-Reply-To:Message-Id:Date: Subject:Cc:To:From:Sender:Reply-To:MIME-Version:Content-Type: Content-Transfer-Encoding:Content-ID:Content-Description; bh=9ppqSdkrDU0CQ1WGim4eaXT01BxAtqWxXeYTBR+bPHU=; b=P7ZFueUkPnzx51loKuwoLbc9qr YVOtYaFCMkLuDsoKarjcuZhBNkTIVIkz6CopKY54XZLDCwW+NW5aUpqOmbehp0LpqS0q9sGtM2MDU XzkrTC8ph6pUKMko/nMMMqrqE6otDjNNZYCbL4GwPKls8TquRxaXWmR8FdKO1kXPozusoEcludIoh ftRYzba4nTrOlewKu8pQgU4k0ccGw82UNZPc4EcPJqZCkXar03eMnsrcdCUG2UEI65RW0sX1TLpZH UiPa74xS7jLU622MgM8YGQClpo7JvLWolndTMjPKn44VzJfd3l/H6/x7w3C4jFwu1RSjwucUkmkF8 xh3BGF8A==; Received: from foss.arm.com ([217.140.110.172]) by casper.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1knMwk-0002QY-RT for linux-arm-kernel@lists.infradead.org; Thu, 10 Dec 2020 14:29:36 +0000 Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id EC68E143B; Thu, 10 Dec 2020 06:29:29 -0800 (PST) Received: from donnerap.arm.com (donnerap.cambridge.arm.com [10.1.195.35]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id D2F143F718; Thu, 10 Dec 2020 06:29:28 -0800 (PST) From: Andre Przywara To: Will Deacon , Julien Thierry Subject: [PATCH kvmtool 06/21] hw/i8042: Refactor trap handler Date: Thu, 10 Dec 2020 14:28:53 +0000 Message-Id: <20201210142908.169597-7-andre.przywara@arm.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20201210142908.169597-1-andre.przywara@arm.com> References: <20201210142908.169597-1-andre.przywara@arm.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20201210_142931_436015_F34288CA X-CRM114-Status: UNSURE ( 9.19 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linux-arm-kernel@lists.infradead.org, Marc Zyngier , Alexandru Elisei , kvmarm@lists.cs.columbia.edu, kvm@vger.kernel.org MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org With the planned retirement of the special ioport emulation code, we need to provide an emulation function compatible with the MMIO prototype. Adjust the trap handler to use that new function, and provide shims to implement the old ioport interface, for now. Signed-off-by: Andre Przywara --- hw/i8042.c | 68 +++++++++++++++++++++++++++--------------------------- 1 file changed, 34 insertions(+), 34 deletions(-) diff --git a/hw/i8042.c b/hw/i8042.c index 36ee183f..eb1f9d28 100644 --- a/hw/i8042.c +++ b/hw/i8042.c @@ -292,52 +292,52 @@ static void kbd_reset(void) }; } -/* - * Called when the OS has written to one of the keyboard's ports (0x60 or 0x64) - */ -static bool kbd_in(struct ioport *ioport, struct kvm_cpu *vcpu, u16 port, void *data, int size) +static void kbd_io(struct kvm_cpu *vcpu, u64 addr, u8 *data, u32 len, + u8 is_write, void *ptr) { - switch (port) { - case I8042_COMMAND_REG: { - u8 value = kbd_read_status(); - ioport__write8(data, value); + u8 value; + + if (is_write) + value = ioport__read8(data); + + switch (addr) { + case I8042_COMMAND_REG: + if (is_write) + kbd_write_command(vcpu->kvm, value); + else + value = kbd_read_status(); break; - } - case I8042_DATA_REG: { - u8 value = kbd_read_data(); - ioport__write8(data, value); + case I8042_DATA_REG: + if (is_write) + kbd_write_data(value); + else + value = kbd_read_data(); break; - } - case I8042_PORT_B_REG: { - ioport__write8(data, 0x20); + case I8042_PORT_B_REG: + if (!is_write) + value = 0x20; break; - } default: - return false; + return; } + if (!is_write) + ioport__write8(data, value); +} + +/* + * Called when the OS has written to one of the keyboard's ports (0x60 or 0x64) + */ +static bool kbd_in(struct ioport *ioport, struct kvm_cpu *vcpu, u16 port, void *data, int size) +{ + kbd_io(vcpu, port, data, size, false, NULL); + return true; } static bool kbd_out(struct ioport *ioport, struct kvm_cpu *vcpu, u16 port, void *data, int size) { - switch (port) { - case I8042_COMMAND_REG: { - u8 value = ioport__read8(data); - kbd_write_command(vcpu->kvm, value); - break; - } - case I8042_DATA_REG: { - u8 value = ioport__read8(data); - kbd_write_data(value); - break; - } - case I8042_PORT_B_REG: { - break; - } - default: - return false; - } + kbd_io(vcpu, port, data, size, true, NULL); return true; } -- 2.17.1 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel