From nobody Sun Feb 8 06:05:20 2026 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=fail; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=fail(p=none dis=none) header.from=gmail.com Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1625618141019529.78503954476; Tue, 6 Jul 2021 17:35:41 -0700 (PDT) Received: from localhost ([::1]:60844 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1m0vXP-0006XU-Pm for importer@patchew.org; Tue, 06 Jul 2021 20:35:39 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:60646) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1m0vVU-0004mx-KB; Tue, 06 Jul 2021 20:33:40 -0400 Received: from mail-pf1-x42a.google.com ([2607:f8b0:4864:20::42a]:35720) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1m0vVS-0001PF-P6; Tue, 06 Jul 2021 20:33:40 -0400 Received: by mail-pf1-x42a.google.com with SMTP id d12so630151pfj.2; Tue, 06 Jul 2021 17:33:36 -0700 (PDT) Received: from rekt.ibmuc.com ([2804:431:c7c7:7611:b123:7cbc:3065:30b1]) by smtp.gmail.com with ESMTPSA id co12sm4004871pjb.33.2021.07.06.17.33.33 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 06 Jul 2021 17:33:35 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=nTJFZwW5vyFCs62BJSu4TQwetq1pKuyftiRFQ5EI70o=; b=LY1nc7baCcE6K6UWwfqkaacD83dUctYvIB1ezfD8zY7E3YR7qNlAUOX4kda1fsKYXA eY9A2F9+iJ5/Ozm+5d1uzaLb9dTgpcwzmh9awAOfU9vtqHPGWFZPbfd7AHtlVwiTUgM+ xho61awwtJsZShDxaj3ya0fg+nl5RpJDELubti6yRi+6R+5lDY8vjdxw1cu0xlF9sbRY lw6M9LDWWbIdr8VWzU+k+JlnHuP9VYWKcQMSNbPemucsrunhAYHOUmxIA4JjBllTCmGX /dYiFpFA9j8PwugM84su+gOPoSD56tujk852EU700ht+FYfI0KDJyT4Was2ydVYKKA9d lA8w== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=nTJFZwW5vyFCs62BJSu4TQwetq1pKuyftiRFQ5EI70o=; b=aaYtWd+jyjiklECaGzq1vecetu15p3R5Uer4+kGtRods4ktEJbn9TVz5V0C8PKOTuf j/ulu62Q3LP3C56R1vTRqBzq+Sj8D2/iyOTpcSZjeMW/Ebtc7OtmGyT2MMQIVGPkOo0/ X+J8wtNwa9+QqitKqCMg/+Bi4a8H/DApV/9xdWtQRQ0JRixqDj6RM6T6SyqwSusB/8N1 4e7OYY2A/j4gVD2q1W0C7+IR6+grA0hw+VP/Gqqqo9E9vkjWwWYCSCgXtOa2rQdXf2Rr pv6G8jUn3mtzumPCRjEJb1NUPqNBXUcJ2ajRHfK2rBrnoVST24TA0R3PY4h+Uc1BEjwR cNLw== X-Gm-Message-State: AOAM530JRsNl+LUi3hRwqrbusgmz3OLj6qyFIK8/TWm6hWRn4I6g9YTG U7x6zsEJC62cf9IeIpJ7AsEkYYw29f4JWw== X-Google-Smtp-Source: ABdhPJxhnvd7lg/jQcQ6Wo6Tau5kyyMzyJGRB67d1Jl4jtOetSG1GzT6sv5B0TOhPvQwn/U0JK2VIA== X-Received: by 2002:a62:1447:0:b029:31d:15fa:a309 with SMTP id 68-20020a6214470000b029031d15faa309mr15865680pfu.71.1625618015483; Tue, 06 Jul 2021 17:33:35 -0700 (PDT) From: Daniel Henrique Barboza To: qemu-devel@nongnu.org Subject: [PATCH v4 1/3] qapi/qdev.json: add DEVICE_UNPLUG_ERROR QAPI event Date: Tue, 6 Jul 2021 21:33:12 -0300 Message-Id: <20210707003314.37110-2-danielhb413@gmail.com> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20210707003314.37110-1-danielhb413@gmail.com> References: <20210707003314.37110-1-danielhb413@gmail.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2607:f8b0:4864:20::42a; envelope-from=danielhb413@gmail.com; helo=mail-pf1-x42a.google.com X-Spam_score_int: -17 X-Spam_score: -1.8 X-Spam_bar: - X-Spam_report: (-1.8 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, FREEMAIL_ENVFROM_END_DIGIT=0.25, FREEMAIL_FROM=0.001, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Daniel Henrique Barboza , armbru@redhat.com, groug@kaod.org, qemu-ppc@nongnu.org, eblake@redhat.com, david@gibson.dropbear.id.au Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: fail (Header signature does not verify) X-ZM-MESSAGEID: 1625618142909100001 Content-Type: text/plain; charset="utf-8" At this moment we only provide one event to report a hotunplug error, MEM_UNPLUG_ERROR. As of Linux kernel 5.12 and QEMU 6.0.0, the pseries machine is now able to report unplug errors for other device types, such as CPUs. Instead of creating a (device_type)_UNPLUG_ERROR for each new device, create a generic DEVICE_UNPLUG_ERROR event that can be used by all unplug errors in the future. With this new generic event, MEM_UNPLUG_ERROR is now marked as deprecated. Reviewed-by: David Gibson Signed-off-by: Daniel Henrique Barboza Reviewed-by: Greg Kurz --- docs/system/deprecated.rst | 10 ++++++++++ qapi/machine.json | 6 +++++- qapi/qdev.json | 27 ++++++++++++++++++++++++++- 3 files changed, 41 insertions(+), 2 deletions(-) diff --git a/docs/system/deprecated.rst b/docs/system/deprecated.rst index 70e08baff6..ca6c7f9d43 100644 --- a/docs/system/deprecated.rst +++ b/docs/system/deprecated.rst @@ -204,6 +204,16 @@ The ``I7200`` guest CPU relies on the nanoMIPS ISA, wh= ich is deprecated (the ISA has never been upstreamed to a compiler toolchain). Therefore this CPU is also deprecated. =20 + +QEMU API (QAPI) events +---------------------- + +``MEM_UNPLUG_ERROR`` (since 6.1) +'''''''''''''''''''''''''''''''''''''''''''''''''''''''' + +Use the more generic event ``DEVICE_UNPLUG_ERROR`` instead. + + System emulator machines ------------------------ =20 diff --git a/qapi/machine.json b/qapi/machine.json index c3210ee1fb..a595c753d2 100644 --- a/qapi/machine.json +++ b/qapi/machine.json @@ -1271,6 +1271,9 @@ # # @msg: Informative message # +# Features: +# @deprecated: This event is deprecated. Use @DEVICE_UNPLUG_ERROR instead. +# # Since: 2.4 # # Example: @@ -1283,7 +1286,8 @@ # ## { 'event': 'MEM_UNPLUG_ERROR', - 'data': { 'device': 'str', 'msg': 'str' } } + 'data': { 'device': 'str', 'msg': 'str' }, + 'features': ['deprecated'] } =20 ## # @SMPConfiguration: diff --git a/qapi/qdev.json b/qapi/qdev.json index b83178220b..349d7439fa 100644 --- a/qapi/qdev.json +++ b/qapi/qdev.json @@ -84,7 +84,9 @@ # This command merely requests that the guest begin the hot removal # process. Completion of the device removal process is signaled wi= th a # DEVICE_DELETED event. Guest reset will automatically complete rem= oval -# for all devices. +# for all devices. If an error in the hot removal process is detect= ed, +# the device will not be removed and a DEVICE_UNPLUG_ERROR event is +# sent. # # Since: 0.14 # @@ -124,3 +126,26 @@ ## { 'event': 'DEVICE_DELETED', 'data': { '*device': 'str', 'path': 'str' } } + +## +# @DEVICE_UNPLUG_ERROR: +# +# Emitted when a device hot unplug error occurs. +# +# @device: device name +# +# @msg: Informative message +# +# Since: 6.1 +# +# Example: +# +# <- { "event": "DEVICE_UNPLUG_ERROR" +# "data": { "device": "dimm1", +# "msg": "Memory hotunplug rejected by the guest for device= dimm1" +# }, +# "timestamp": { "seconds": 1615570772, "microseconds": 202844 } } +# +## +{ 'event': 'DEVICE_UNPLUG_ERROR', + 'data': { 'device': 'str', 'msg': 'str' } } --=20 2.31.1