From patchwork Fri Mar 4 11:52:54 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ani Sinha X-Patchwork-Id: 12769019 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 lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id B94E9C433FE for ; Fri, 4 Mar 2022 11:54:55 +0000 (UTC) Received: from localhost ([::1]:40304 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1nQ6WM-0008RC-Ak for qemu-devel@archiver.kernel.org; Fri, 04 Mar 2022 06:54:54 -0500 Received: from eggs.gnu.org ([209.51.188.92]:33090) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1nQ6Uk-0006VF-ST for qemu-devel@nongnu.org; Fri, 04 Mar 2022 06:53:14 -0500 Received: from [2607:f8b0:4864:20::436] (port=38742 helo=mail-pf1-x436.google.com) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1nQ6Uj-0005M5-1u for qemu-devel@nongnu.org; Fri, 04 Mar 2022 06:53:14 -0500 Received: by mail-pf1-x436.google.com with SMTP id j1so3459304pfj.5 for ; Fri, 04 Mar 2022 03:53:12 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=anisinha-ca.20210112.gappssmtp.com; s=20210112; h=from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=fhvAa96OS1SENO8Qck8qKsd0tXAekWix89Wf/9XkNOs=; b=KfVkphJqz/kFM2Lb51YupFkhbiQaZxKpLCIF9Eg+UZhSp+r5B2B5AcNnhjgTQheQWM cUedK2irQskosQxM8xUb9Oh4ofxQj/RHNjChwS9PSaq+lj8ocAsOP78kI5erRDuYMp1C I+jzTGCCfInOkaOuI5zzWs8OjkLS5hKR2/1vzvEICLaODW0zaK5ZL+gPNtIUfcpF3rQD XXhM2pJNtw24W43brEOq8a3GHt32XnJ6Z5jZwVELz/9RKYnSpQaJ4uVSdiXvOdkNiLR7 LQQsfxbXbiggPQ+X+rEyPMsIjAhnl+k5NoG7nE/G163Pag/PymIMqFjnttbUK2O/AxIw cfqA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=fhvAa96OS1SENO8Qck8qKsd0tXAekWix89Wf/9XkNOs=; b=dm4H0nmt0cFXFyzLk3V4KGxAgY+n1nu82nVcXdquIwhuOeGPT+UP0Tc82e6c58W1BZ Oz0E1SCEIVNGxBpeV7XwOWjcsJePIO49JxxYzsu4N1CykxJ0a6VwGuWKx+zZ/cWS4X4v UT3DSH/DPPuzRGF4R1jnyoCMLt9T16XEGApYUl7GZ7x+o2KkCodL96fNkpyiuIY2T90T 8YY8d5q2zlt2FS4TTtbWjBUSN2UxYXuzAF5sHKhBnfsu57g6pHKa40rMIX+ww2Ya5/jZ 4sXfHK60/I/OLy8SUI2dGZMu4fAZvsDuufIia15Y8oh/S/aOfgGplT2rKr0yX5sWCKyJ uvTg== X-Gm-Message-State: AOAM5323x837pSholXHPT8K0DVoAKOes6oYdSXG32/WWAqGxxiFEdLVv B1VeoRXcpz112p5aFRwHKckGjinWAWeKAQ== X-Google-Smtp-Source: ABdhPJy56bZGZPBCsmsdICrpioJZ5PUNkDlcVVZuQGRapbtYGmWLUY7LlTRp+IXsMI96emWdxyuQbg== X-Received: by 2002:a05:6a00:1307:b0:4b0:b1c:6fd9 with SMTP id j7-20020a056a00130700b004b00b1c6fd9mr43056598pfu.27.1646394791256; Fri, 04 Mar 2022 03:53:11 -0800 (PST) Received: from anisinha-lenovo.ba.nuagenetworks.net ([115.96.152.50]) by smtp.googlemail.com with ESMTPSA id s7-20020a056a00178700b004e1a15e7928sm6334878pfg.145.2022.03.04.03.53.08 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 04 Mar 2022 03:53:10 -0800 (PST) From: Ani Sinha To: qemu-devel@nongnu.org Subject: [PATCH v5 0/3] hw/acpi: add indication for i8042 in IA-PC boot flags of the FADT table Date: Fri, 4 Mar 2022 17:22:54 +0530 Message-Id: <20220304115257.1816983-1-ani@anisinha.ca> X-Mailer: git-send-email 2.25.1 MIME-Version: 1.0 X-Host-Lookup-Failed: Reverse DNS lookup failed for 2607:f8b0:4864:20::436 (failed) Received-SPF: none client-ip=2607:f8b0:4864:20::436; envelope-from=ani@anisinha.ca; helo=mail-pf1-x436.google.com X-Spam_score_int: -4 X-Spam_score: -0.5 X-Spam_bar: / X-Spam_report: (-0.5 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, PDS_HP_HELO_NORDNS=0.659, RCVD_IN_DNSWL_NONE=-0.0001, RDNS_NONE=0.793, SPF_HELO_NONE=0.001, SPF_NONE=0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=no autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Ani Sinha , imammedo@redhat.com, liavalb@gmail.com, mst@redhat.com Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" This can allow the guest OS to determine more easily if i8042 controller is present in the system or not, so it doesn't need to do probing of the controller, but just initialize it immediately, before enumerating the ACPI AML namespace. To allow "flexible" indication, I don't hardcode the bit at location 1 as on in the IA-PC boot flags, but try to search for i8042 on the ISA bus to verify it exists in the system. Why this is useful you might ask - this patch allows the guest OS to probe and use the i8042 controller without decoding the ACPI AML blob at all. For example, as a developer of the SerenityOS kernel, I might want to allow people to not try to decode the ACPI AML namespace (for now, we still don't support ACPI AML as it's a work in progress), but still to not probe for the i8042 but just use it after looking in the IA-PC boot flags in the ACPI FADT table. Changelog: v5: Addressed review comments from v4. Also got rid of microvm changes. Will send them in a separate patch. Liav Albani (3): tests/acpi: i386: allow FACP acpi table changes hw/acpi: add indication for i8042 in IA-PC boot flags of the FADT table tests/acpi: i386: update FACP table differences hw/acpi/aml-build.c | 8 +++++++- hw/i386/acpi-build.c | 8 ++++++++ include/hw/acpi/acpi-defs.h | 1 + include/hw/input/i8042.h | 6 ++++++ tests/data/acpi/q35/FACP | Bin 244 -> 244 bytes tests/data/acpi/q35/FACP.nosmm | Bin 244 -> 244 bytes tests/data/acpi/q35/FACP.slic | Bin 244 -> 244 bytes tests/data/acpi/q35/FACP.xapic | Bin 244 -> 244 bytes 8 files changed, 22 insertions(+), 1 deletion(-)